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-rw-r--r--Documentation/MyFirstContribution.txt23
-rw-r--r--Documentation/MyFirstObjectWalk.txt34
-rw-r--r--Documentation/RelNotes/2.30.0.txt365
-rw-r--r--Documentation/SubmittingPatches43
-rw-r--r--Documentation/blame-options.txt9
-rw-r--r--Documentation/config.txt6
-rw-r--r--Documentation/config/advice.txt9
-rw-r--r--Documentation/config/checkout.txt21
-rw-r--r--Documentation/config/clone.txt4
-rw-r--r--Documentation/config/core.txt4
-rw-r--r--Documentation/config/credential.txt6
-rw-r--r--Documentation/config/format.txt7
-rw-r--r--Documentation/config/gc.txt6
-rw-r--r--Documentation/config/help.txt15
-rw-r--r--Documentation/config/maintenance.txt43
-rw-r--r--Documentation/config/push.txt6
-rw-r--r--Documentation/config/transfer.txt4
-rw-r--r--Documentation/diff-options.txt22
-rw-r--r--Documentation/git-am.txt2
-rw-r--r--Documentation/git-blame.txt4
-rw-r--r--Documentation/git-branch.txt8
-rw-r--r--Documentation/git-checkout.txt9
-rw-r--r--Documentation/git-cherry-pick.txt2
-rw-r--r--Documentation/git-clone.txt5
-rw-r--r--Documentation/git-commit-graph.txt4
-rw-r--r--Documentation/git-commit.txt10
-rw-r--r--Documentation/git-config.txt35
-rw-r--r--Documentation/git-diff-index.txt9
-rw-r--r--Documentation/git-diff-tree.txt7
-rw-r--r--Documentation/git-diff.txt36
-rw-r--r--Documentation/git-for-each-repo.txt59
-rw-r--r--Documentation/git-format-patch.txt10
-rw-r--r--Documentation/git-grep.txt6
-rw-r--r--Documentation/git-log.txt15
-rw-r--r--Documentation/git-ls-files.txt5
-rw-r--r--Documentation/git-ls-tree.txt3
-rw-r--r--Documentation/git-maintenance.txt147
-rw-r--r--Documentation/git-p4.txt2
-rw-r--r--Documentation/git-parse-remote.txt23
-rw-r--r--Documentation/git-push.txt26
-rw-r--r--Documentation/git-rebase.txt2
-rw-r--r--Documentation/git-remote.txt11
-rw-r--r--Documentation/git-restore.txt4
-rw-r--r--Documentation/git-rev-parse.txt8
-rw-r--r--Documentation/git-revert.txt2
-rw-r--r--Documentation/git-send-email.txt4
-rw-r--r--Documentation/git-svn.txt4
-rw-r--r--Documentation/git-switch.txt3
-rw-r--r--Documentation/git-update-ref.txt3
-rw-r--r--Documentation/git-worktree.txt5
-rw-r--r--Documentation/gitattributes.txt3
-rw-r--r--Documentation/githooks.txt4
-rw-r--r--Documentation/gitk.txt20
-rw-r--r--Documentation/glossary-content.txt2
-rw-r--r--Documentation/line-range-format.txt28
-rw-r--r--Documentation/line-range-options.txt15
-rw-r--r--Documentation/merge-options.txt11
-rw-r--r--Documentation/pretty-options.txt6
-rw-r--r--Documentation/signoff-option.txt18
-rw-r--r--Documentation/technical/api-trace2.txt2
-rw-r--r--Documentation/technical/directory-rename-detection.txt15
-rw-r--r--Documentation/technical/protocol-capabilities.txt17
-rw-r--r--Documentation/technical/protocol-v2.txt13
63 files changed, 1000 insertions, 254 deletions
diff --git a/Documentation/MyFirstContribution.txt b/Documentation/MyFirstContribution.txt
index 4f85a089ef..7c9a037cc2 100644
--- a/Documentation/MyFirstContribution.txt
+++ b/Documentation/MyFirstContribution.txt
@@ -249,7 +249,7 @@ component you're working on, followed by a blank line (always required) and then
the body of your commit message, which should provide the bulk of the context.
Remember to be explicit and provide the "Why" of your change, especially if it
couldn't easily be understood from your diff. When editing your commit message,
-don't remove the Signed-off-by line which was added by `-s` above.
+don't remove the `Signed-off-by` trailer which was added by `-s` above.
----
psuh: add a built-in by popular demand
@@ -507,6 +507,9 @@ documentation is consistent with other Git and UNIX manpages; this makes life
easier for your user, who can skip to the section they know contains the
information they need.
+NOTE: Before trying to build the docs, make sure you have the package `asciidoc`
+installed.
+
Now that you've written your manpage, you'll need to build it explicitly. We
convert your AsciiDoc to troff which is man-readable like so:
@@ -522,8 +525,6 @@ $ make -C Documentation/ git-psuh.1
$ man Documentation/git-psuh.1
----
-NOTE: You may need to install the package `asciidoc` to get this to work.
-
While this isn't as satisfying as running through `git help`, you can at least
check that your help page looks right.
@@ -1142,11 +1143,25 @@ After a few days, you will hopefully receive a reply to your patchset with some
comments. Woohoo! Now you can get back to work.
It's good manners to reply to each comment, notifying the reviewer that you have
-made the change requested, feel the original is better, or that the comment
+made the change suggested, feel the original is better, or that the comment
inspired you to do something a new way which is superior to both the original
and the suggested change. This way reviewers don't need to inspect your v2 to
figure out whether you implemented their comment or not.
+Reviewers may ask you about what you wrote in the patchset, either in
+the proposed commit log message or in the changes themselves. You
+should answer these questions in your response messages, but often the
+reason why reviewers asked these questions to understand what you meant
+to write is because your patchset needed clarification to be understood.
+
+Do not be satisfied by just answering their questions in your response
+and hear them say that they now understand what you wanted to say.
+Update your patches to clarify the points reviewers had trouble with,
+and prepare your v2; the words you used to explain your v1 to answer
+reviewers' questions may be useful thing to use. Your goal is to make
+your v2 clear enough so that it becomes unnecessary for you to give the
+same explanation to the next person who reads it.
+
If you are going to push back on a comment, be polite and explain why you feel
your original is better; be prepared that the reviewer may still disagree with
you, and the rest of the community may weigh in on one side or the other. As
diff --git a/Documentation/MyFirstObjectWalk.txt b/Documentation/MyFirstObjectWalk.txt
index c3f2d1a831..2d10eea7a9 100644
--- a/Documentation/MyFirstObjectWalk.txt
+++ b/Documentation/MyFirstObjectWalk.txt
@@ -182,30 +182,6 @@ its `init_log_defaults()` sets its own state (`decoration_style`) and asks
`grep` and `diff` to initialize themselves by calling each of their
initialization functions.
-For our first example within `git walken`, we don't intend to use any other
-components within Git, and we don't have any configuration to do. However, we
-may want to add some later, so for now, we can add an empty placeholder. Create
-a new function in `builtin/walken.c`:
-
-----
-static void init_walken_defaults(void)
-{
- /*
- * We don't actually need the same components `git log` does; leave this
- * empty for now.
- */
-}
-----
-
-Make sure to add a line invoking it inside of `cmd_walken()`.
-
-----
-int cmd_walken(int argc, const char **argv, const char *prefix)
-{
- init_walken_defaults();
-}
-----
-
==== Configuring From `.gitconfig`
Next, we should have a look at any relevant configuration settings (i.e.,
@@ -388,17 +364,9 @@ Next, let's try to filter the commits we see based on their author. This is
equivalent to running `git log --author=<pattern>`. We can add a filter by
modifying `rev_info.grep_filter`, which is a `struct grep_opt`.
-First some setup. Add `init_grep_defaults()` to `init_walken_defaults()` and add
-`grep_config()` to `git_walken_config()`:
+First some setup. Add `grep_config()` to `git_walken_config()`:
----
-static void init_walken_defaults(void)
-{
- init_grep_defaults(the_repository);
-}
-
-...
-
static int git_walken_config(const char *var, const char *value, void *cb)
{
grep_config(var, value, cb);
diff --git a/Documentation/RelNotes/2.30.0.txt b/Documentation/RelNotes/2.30.0.txt
new file mode 100644
index 0000000000..f8dc5a1ef3
--- /dev/null
+++ b/Documentation/RelNotes/2.30.0.txt
@@ -0,0 +1,365 @@
+Git 2.30 Release Notes
+======================
+
+Updates since v2.29
+-------------------
+
+UI, Workflows & Features
+
+ * Userdiff for PHP update.
+
+ * Userdiff for Rust update.
+
+ * Userdiff for CSS update.
+
+ * The command line completion script (in contrib/) learned that "git
+ stash show" takes the options "git diff" takes.
+
+ * "git worktree list" now shows if each worktree is locked. This
+ possibly may open us to show other kinds of states in the future.
+
+ * "git maintenance", an extended big brother of "git gc", continues
+ to evolve.
+
+ * "git push --force-with-lease[=<ref>]" can easily be misused to lose
+ commits unless the user takes good care of their own "git fetch".
+ A new option "--force-if-includes" attempts to ensure that what is
+ being force-pushed was created after examining the commit at the
+ tip of the remote ref that is about to be force-replaced.
+
+ * "git clone" learned clone.defaultremotename configuration variable
+ to customize what nickname to use to call the remote the repository
+ was cloned from.
+
+ * "git checkout" learned to use checkout.guess configuration variable
+ and enable/disable its "--[no-]guess" option accordingly.
+
+ * "git resurrect" script (in contrib/) learned that the object names
+ may be longer than 40-hex depending on the hash function in use.
+
+ * "git diff A...B" learned "git diff --merge-base A B", which is a
+ longer short-hand to say the same thing.
+
+ * A sample 'push-to-checkout' hook, that performs the same as
+ what the built-in default action does, has been added.
+
+ * "git diff" family of commands learned the "-I<regex>" option to
+ ignore hunks whose changed lines all match the given pattern.
+
+ * The userdiff pattern learned to identify the function definition in
+ POSIX shells and bash.
+
+ * "git checkout-index" did not consistently signal an error with its
+ exit status, but now it does.
+
+ * A commit and tag object may have CR at the end of each and
+ every line (you can create such an object with hash-object or
+ using --cleanup=verbatim to decline the default clean-up
+ action), but it would make it impossible to have a blank line
+ to separate the title from the body of the message. We are now
+ more lenient and accept a line with lone CR on it as a blank line,
+ too.
+
+ * Exit codes from "git remote add" etc. were not usable by scripted
+ callers, but now they are.
+
+ * "git archive" now allows compression level higher than "-9"
+ when generating tar.gz output.
+
+ * Zsh autocompletion (in contrib/) update.
+
+ * The maximum length of output filenames "git format-patch" creates
+ has become configurable (used to be capped at 64).
+
+ * "git rev-parse" learned the "--end-of-options" to help scripts to
+ safely take a parameter that is supposed to be a revision, e.g.
+ "git rev-parse --verify -q --end-of-options $rev".
+
+ * The command line completion script (in contrib/) learned to expand
+ commands that are alias of alias.
+
+ * "git update-ref --stdin" learns to take multiple transactions in a
+ single session.
+
+ * Various subcommands of "git config" that takes value_regex
+ learn the "--literal-value" option to take the value_regex option
+ as a literal string.
+
+ * The transport layer was taught to optionally exchange the session
+ ID assigned by the trace2 subsystem during fetch/push transactions.
+
+ * "git imap-send" used to ignore configuration variables like
+ core.askpass; this has been corrected.
+
+
+Performance, Internal Implementation, Development Support etc.
+
+ * Use "git archive" more to produce the release tarball.
+
+ * GitHub Actions automated test improvement to skip tests on a tree
+ identical to what has already been tested.
+
+ * Test-coverage for running commit-graph task "git maintenance" has
+ been extended.
+
+ * Our test scripts can be told to run only individual pieces while
+ skipping others with the "--run=..." option; they were taught to
+ take a substring of test title, in addition to numbers, to name the
+ test pieces to run.
+
+ * Adjust tests so that they won't scream when the default initial
+ branch name is changed to 'main'.
+
+ * Rewriting "git bisect" in C continues.
+
+ * More preliminary tests have been added to document desired outcome
+ of various "directory rename" situations.
+
+ * Micro clean-up of a couple of test scripts.
+
+ * "git diff" and other commands that share the same machinery to
+ compare with working tree files have been taught to take advantage
+ of the fsmonitor data when available.
+
+ * The code to detect premature EOF in the sideband demultiplexer has
+ been cleaned up.
+
+ * Test scripts are being prepared to transition of the default branch
+ name to 'main'.
+
+ * "git fetch --depth=<n>" over the stateless RPC / smart HTTP
+ transport handled EOF from the client poorly at the server end.
+
+ * A specialization of hashmap that uses a string as key has been
+ introduced. Hopefully it will see wider use over time.
+
+ * "git bisect start/next" in a large span of history spends a lot of
+ time trying to come up with exactly the half-way point; this can be
+ optimized by stopping when we see a commit that is close enough to
+ the half-way point.
+
+ * A lazily defined test prerequisite can now be defined in terms of
+ another lazily defined test prerequisite.
+
+ * Expectation for the original contributor after responding to a
+ review comment to use the explanation in a patch update has been
+ described.
+
+ * Multiple "credential-store" backends can race to lock the same
+ file, causing everybody else but one to fail---reattempt locking
+ with some timeout to reduce the rate of the failure.
+
+ * "git-parse-remote" shell script library outlived its usefulness.
+
+ * Like die() and error(), a call to warning() will also trigger a
+ trace2 event.
+
+ * Use of non-reentrant localtime() has been removed.
+
+ * Non-reentrant time-related library functions and ctime/asctime with
+ awkward calling interfaces are banned from the codebase.
+
+
+Fixes since v2.29
+-----------------
+
+ * In 2.29, "--committer-date-is-author-date" option of "rebase" and
+ "am" subcommands lost the e-mail address by mistake, which has been
+ corrected.
+ (merge 5f35edd9d7 jk/committer-date-is-author-date-fix later to maint).
+
+ * "git checkout -p A...B [-- <path>]" did not work, even though the
+ same command without "-p" correctly used the merge-base between
+ commits A and B.
+ (merge 35166b1fb5 dl/checkout-p-merge-base later to maint).
+
+ * The side-band status report can be sent at the same time as the
+ primary payload multiplexed, but the demultiplexer on the receiving
+ end incorrectly split a single status report into two, which has
+ been corrected.
+ (merge 712b0377db js/avoid-split-sideband-message later to maint).
+
+ * "git fast-import" wasted a lot of memory when many marks were in use.
+ (merge 3f018ec716 jk/fast-import-marks-alloc-fix later to maint).
+
+ * A test helper "test_cmp A B" was taught to diagnose missing files A
+ or B as a bug in test, but some tests legitimately wanted to notice
+ a failure to even create file B as an error, in addition to leaving
+ the expected result in it, and were misdiagnosed as a bug. This
+ has been corrected.
+ (merge 262d5ad5a5 es/test-cmp-typocatcher later to maint).
+
+ * When "git commit-graph" detects the same commit recorded more than
+ once while it is merging the layers, it used to die. The code now
+ ignores all but one of them and continues.
+ (merge 85102ac71b ds/commit-graph-merging-fix later to maint).
+
+ * The meaning of a Signed-off-by trailer can vary from project to
+ project; this and also what it means to this project has been
+ clarified in the documentation.
+ (merge 3abd4a67d9 bk/sob-dco later to maint).
+
+ * "git credential' didn't honor the core.askPass configuration
+ variable (among other things), which has been corrected.
+ (merge 567ad2c0f9 tk/credential-config later to maint).
+
+ * Dev support to catch a tentative definition of a variable in our C
+ code as an error.
+ (merge 5539183622 jk/no-common later to maint).
+
+ * "git rebase --rebase-merges" did not correctly pass --gpg-sign
+ command line option to underlying "git merge" when replaying a merge
+ using non-default merge strategy or when replaying an octopus merge
+ (because replaying a two-head merge with the default strategy was
+ done in a separate codepath, the problem did not trigger for most
+ users), which has been corrected.
+ (merge 43ad4f2eca sc/sequencer-gpg-octopus later to maint).
+
+ * "git apply -R" did not handle patches that touch the same path
+ twice correctly, which has been corrected. This is most relevant
+ in a patch that changes a path from a regular file to a symbolic
+ link (and vice versa).
+ (merge b0f266de11 jt/apply-reverse-twice later to maint).
+
+ * A recent oid->hash conversion missed one spot, breaking "git svn".
+ (merge 03bb366de4 bc/svn-hash-oid-fix later to maint).
+
+ * The documentation on the "--abbrev=<n>" option did not say the
+ output may be longer than "<n>" hexdigits, which has been
+ clarified.
+ (merge cda34e0d0c jc/abbrev-doc later to maint).
+
+ * "git p4" now honors init.defaultBranch configuration.
+ (merge 1b09d1917f js/p4-default-branch later to maint).
+
+ * Recently the format of an internal state file "rebase -i" uses has
+ been tightened up for consistency, which would hurt those who start
+ "rebase -i" with old git and then continue with new git. Loosen
+ the reader side a bit (which we may want to tighten again in a year
+ or so).
+ (merge c779386182 jc/sequencer-stopped-sha-simplify later to maint).
+
+ * The code to see if "git stash drop" can safely remove refs/stash
+ has been made more carerful.
+ (merge 4f44c5659b rs/empty-reflog-check-fix later to maint).
+
+ * "git log -L<range>:<path>" is documented to take no pathspec, but
+ this was not enforced by the command line option parser, which has
+ been corrected.
+ (merge 39664cb0ac jc/line-log-takes-no-pathspec later to maint).
+
+ * "git format-patch --output=there" did not work as expected and
+ instead crashed. The option is now supported.
+ (merge dc1672dd10 jk/format-patch-output later to maint).
+
+ * Define ARM64 compiled with MSVC to be little-endian.
+ (merge 0c038fc65a dg/bswap-msvc later to maint).
+
+ * "git rebase -i" did not store ORIG_HEAD correctly.
+ (merge 8843302307 pw/rebase-i-orig-head later to maint).
+
+ * "git blame -L :funcname -- path" did not work well for a path for
+ which a userdiff driver is defined.
+
+ * "make DEVELOPER=1 sparse" used to run sparse and let it emit
+ warnings; now such warnings will cause an error.
+ (merge 521dc56270 jc/sparse-error-for-developer-build later to maint).
+
+ * "git blame --ignore-revs-file=<file>" learned to ignore a
+ non-existent object name in the input, instead of complaining.
+ (merge c714d05875 jc/blame-ignore-fix later to maint).
+
+ * Running "git diff" while allowing external diff in a state with
+ unmerged paths used to segfault, which has been corrected.
+ (merge d66851806f jk/diff-release-filespec-fix later to maint).
+
+ * Build configuration cleanup.
+ (merge b990f02fd8 ab/config-mak-uname-simplify later to maint).
+
+ * Fix regression introduced when nvimdiff support in mergetool was added.
+ (merge 12026f46e7 pd/mergetool-nvimdiff later to maint).
+
+ * The exchange between receive-pack and proc-receive hook did not
+ carefully check for errors.
+
+ * The code was not prepared to deal with pack .idx file that is
+ larger than 4GB.
+ (merge 81c4c5cf2e jk/4gb-idx later to maint).
+
+ * Since jgit does not yet work with SHA-256 repositories, mark the
+ tests that uses it not to run unless we are testing with ShA-1
+ repositories.
+ (merge ea699b4adc sg/t5310-jgit-wants-sha1 later to maint).
+
+ * Config parser fix for "git notes".
+ (merge 45fef1599a na/notes-displayref-is-not-boolean later to maint).
+
+ * Move a definition of compatibility wrapper from cache.h to
+ git-compat-util.h
+ (merge a76b138daa hn/sleep-millisec-decl later to maint).
+
+ * Error message fix.
+ (merge eaf5341538 km/stash-error-message-fix later to maint).
+
+ * "git pull --rebase --recurse-submodules" checked for local changes
+ in a wrong range and failed to run correctly when it should.
+ (merge 5176f20ffe pb/pull-rebase-recurse-submodules later to maint).
+
+ * "git push" that is killed may leave a pack-objects process behind,
+ still computing to find a good compression, wasting cycles. This
+ has been corrected.
+ (merge 8b59935114 jk/stop-pack-objects-when-push-is-killed later to maint).
+
+ * "git fetch" that is killed may leave a pack-objects process behind,
+ still computing to find a good compression, wasting cycles. This
+ has been corrected.
+ (merge 309a4028e7 jk/stop-pack-objects-when-fetch-is-killed later to maint).
+
+ * "git add -i" failed to honor custom colors configured to show
+ patches, which has been corrected.
+ (merge 96386faa03 js/add-i-color-fix later to maint).
+
+ * Processes that access packdata while the .idx file gets removed
+ (e.g. while repacking) did not fail or fall back gracefully as they
+ could.
+ (merge 506ec2fbda tb/idx-midx-race-fix later to maint).
+
+ * "git apply" adjusted the permission bits of working-tree files and
+ directories according core.sharedRepository setting by mistake and
+ for a long time, which has been corrected.
+ (merge eb3c027e17 mt/do-not-use-scld-in-working-tree later to maint).
+
+ * "fetch-pack" could pass NULL pointer to unlink(2) when it sees an
+ invalid filename; the error checking has been tightened to make
+ this impossible.
+ (merge 6031af387e rs/fetch-pack-invalid-lockfile later to maint).
+
+ * "git maintenance run/start/stop" needed to be run in a repository
+ to hold the lockfile they use, but didn't make sure they are
+ actually in a repository, which has been corrected.
+
+ * Other code cleanup, docfix, build fix, etc.
+ (merge 3e0a5dc9af cc/doc-filter-branch-typofix later to maint).
+ (merge 32c83afc2c cw/ci-ghwf-check-ws-errors later to maint).
+ (merge 5eb2ed691b rs/tighten-callers-of-deref-tag later to maint).
+ (merge 6db29ab213 jk/fast-import-marks-cleanup later to maint).
+ (merge e5cf6d3df4 nk/dir-c-comment-update later to maint).
+ (merge 5710dcce74 jk/report-fn-typedef later to maint).
+ (merge 9a82db1056 en/sequencer-rollback-lock-cleanup later to maint).
+ (merge 4e1bee9a99 js/t7006-cleanup later to maint).
+ (merge f5bcde6c58 es/tutorial-mention-asciidoc-early later to maint).
+ (merge 714d491af0 so/format-patch-doc-on-default-diff-format later to maint).
+ (merge 0795df4b9b rs/clear-commit-marks-in-repo later to maint).
+ (merge 9542d56379 sd/prompt-local-variable later to maint).
+ (merge 06d43fad18 rs/pack-write-hashwrite-simplify later to maint).
+ (merge b7e20b4373 mc/typofix later to maint).
+ (merge f6bcd9a8a4 js/test-whitespace-fixes later to maint).
+ (merge 53b67a801b js/test-file-size later to maint).
+ (merge 970909c2a7 rs/hashwrite-be64 later to maint).
+ (merge 5a923bb1f0 ma/list-object-filter-opt-msgfix later to maint).
+ (merge 1c3e412916 rs/archive-plug-leak-refname later to maint).
+ (merge d44e5267ea rs/plug-diff-cache-leak later to maint).
+ (merge 793c1464d3 ab/gc-keep-base-option later to maint).
+ (merge b86339b12b mt/worktree-error-message-fix later to maint).
+ (merge e01ae2a4a7 js/pull-rebase-use-advise later to maint).
+ (merge e63d774242 sn/config-doc-typofix later to maint).
diff --git a/Documentation/SubmittingPatches b/Documentation/SubmittingPatches
index 291b61e262..d12094bac5 100644
--- a/Documentation/SubmittingPatches
+++ b/Documentation/SubmittingPatches
@@ -209,7 +209,7 @@ send them as replies to either an additional "cover letter" message
(see below), the first patch, or the respective preceding patch.
If your log message (including your name on the
-Signed-off-by line) is not writable in ASCII, make sure that
+`Signed-off-by` trailer) is not writable in ASCII, make sure that
you send off a message in the correct encoding.
WARNING: Be wary of your MUAs word-wrap
@@ -229,7 +229,7 @@ previously sent.
The `git format-patch` command follows the best current practice to
format the body of an e-mail message. At the beginning of the
patch should come your commit message, ending with the
-Signed-off-by: lines, and a line that consists of three dashes,
+`Signed-off-by` trailers, and a line that consists of three dashes,
followed by the diffstat information and the patch itself. If
you are forwarding a patch from somebody else, optionally, at
the beginning of the e-mail message just before the commit
@@ -290,25 +290,24 @@ identify them), to solicit comments and reviews.
:git-ml: footnote:[The mailing list: git@vger.kernel.org]
After the list reached a consensus that it is a good idea to apply the
-patch, re-send it with "To:" set to the maintainer{current-maintainer} and "cc:" the
-list{git-ml} for inclusion.
+patch, re-send it with "To:" set to the maintainer{current-maintainer}
+and "cc:" the list{git-ml} for inclusion. This is especially relevant
+when the maintainer did not heavily participate in the discussion and
+instead left the review to trusted others.
Do not forget to add trailers such as `Acked-by:`, `Reviewed-by:` and
`Tested-by:` lines as necessary to credit people who helped your
-patch.
+patch, and "cc:" them when sending such a final version for inclusion.
[[sign-off]]
-=== Certify your work by adding your "Signed-off-by: " line
+=== Certify your work by adding your `Signed-off-by` trailer
-To improve tracking of who did what, we've borrowed the
-"sign-off" procedure from the Linux kernel project on patches
-that are being emailed around. Although core Git is a lot
-smaller project it is a good discipline to follow it.
+To improve tracking of who did what, we ask you to certify that you
+wrote the patch or have the right to pass it on under the same license
+as ours, by "signing off" your patch. Without sign-off, we cannot
+accept your patches.
-The sign-off is a simple line at the end of the explanation for
-the patch, which certifies that you wrote it or otherwise have
-the right to pass it on as an open-source patch. The rules are
-pretty simple: if you can certify the below D-C-O:
+If you can certify the below D-C-O:
[[dco]]
.Developer's Certificate of Origin 1.1
@@ -338,23 +337,29 @@ d. I understand and agree that this project and the contribution
this project or the open source license(s) involved.
____
-then you just add a line saying
+you add a "Signed-off-by" trailer to your commit, that looks like
+this:
....
Signed-off-by: Random J Developer <random@developer.example.org>
....
-This line can be automatically added by Git if you run the git-commit
-command with the -s option.
+This line can be added by Git if you run the git-commit command with
+the -s option.
-Notice that you can place your own Signed-off-by: line when
+Notice that you can place your own `Signed-off-by` trailer when
forwarding somebody else's patch with the above rules for
D-C-O. Indeed you are encouraged to do so. Do not forget to
place an in-body "From: " line at the beginning to properly attribute
the change to its true author (see (2) above).
+This procedure originally came from the Linux kernel project, so our
+rule is quite similar to theirs, but what exactly it means to sign-off
+your patch differs from project to project, so it may be different
+from that of the project you are accustomed to.
+
[[real-name]]
-Also notice that a real name is used in the Signed-off-by: line. Please
+Also notice that a real name is used in the `Signed-off-by` trailer. Please
don't hide your real name.
[[commit-trailers]]
diff --git a/Documentation/blame-options.txt b/Documentation/blame-options.txt
index 88750af7ae..dc3bceb6d1 100644
--- a/Documentation/blame-options.txt
+++ b/Documentation/blame-options.txt
@@ -11,11 +11,12 @@
-L <start>,<end>::
-L :<funcname>::
- Annotate only the given line range. May be specified multiple times.
- Overlapping ranges are allowed.
+ Annotate only the line range given by '<start>,<end>',
+ or by the function name regex '<funcname>'.
+ May be specified multiple times. Overlapping ranges are allowed.
+
-<start> and <end> are optional. ``-L <start>'' or ``-L <start>,'' spans from
-<start> to end of file. ``-L ,<end>'' spans from start of file to <end>.
+'<start>' and '<end>' are optional. `-L <start>` or `-L <start>,` spans from
+'<start>' to end of file. `-L ,<end>` spans from start of file to '<end>'.
+
include::line-range-format.txt[]
diff --git a/Documentation/config.txt b/Documentation/config.txt
index bf706b950e..6ba50b1104 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -64,7 +64,7 @@ The variable names are case-insensitive, allow only alphanumeric characters
and `-`, and must start with an alphabetic character.
A line that defines a value can be continued to the next line by
-ending it with a `\`; the backquote and the end-of-line are
+ending it with a `\`; the backslash and the end-of-line are
stripped. Leading whitespaces after 'name =', the remainder of the
line after the first comment character '#' or ';', and trailing
whitespaces of the line are discarded unless they are enclosed in
@@ -265,7 +265,7 @@ color::
The basic colors accepted are `normal`, `black`, `red`, `green`, `yellow`,
`blue`, `magenta`, `cyan` and `white`. The first color given is the
foreground; the second is the background. All the basic colors except
-`normal` have a bright variant that can be speficied by prefixing the
+`normal` have a bright variant that can be specified by prefixing the
color with `bright`, like `brightred`.
+
Colors may also be given as numbers between 0 and 255; these use ANSI
@@ -334,6 +334,8 @@ include::config/checkout.txt[]
include::config/clean.txt[]
+include::config/clone.txt[]
+
include::config/color.txt[]
include::config/column.txt[]
diff --git a/Documentation/config/advice.txt b/Documentation/config/advice.txt
index bdd37c3eaa..acbd0c09aa 100644
--- a/Documentation/config/advice.txt
+++ b/Documentation/config/advice.txt
@@ -10,9 +10,8 @@ advice.*::
that the check is disabled.
pushUpdateRejected::
Set this variable to 'false' if you want to disable
- 'pushNonFFCurrent',
- 'pushNonFFMatching', 'pushAlreadyExists',
- 'pushFetchFirst', and 'pushNeedsForce'
+ 'pushNonFFCurrent', 'pushNonFFMatching', 'pushAlreadyExists',
+ 'pushFetchFirst', 'pushNeedsForce', and 'pushRefNeedsUpdate'
simultaneously.
pushNonFFCurrent::
Advice shown when linkgit:git-push[1] fails due to a
@@ -41,6 +40,10 @@ advice.*::
we can still suggest that the user push to either
refs/heads/* or refs/tags/* based on the type of the
source object.
+ pushRefNeedsUpdate::
+ Shown when linkgit:git-push[1] rejects a forced update of
+ a branch when its remote-tracking ref has updates that we
+ do not have locally.
statusAheadBehind::
Shown when linkgit:git-status[1] computes the ahead/behind
counts for a local ref compared to its remote tracking ref,
diff --git a/Documentation/config/checkout.txt b/Documentation/config/checkout.txt
index 6b646813ab..2cddf7b4b4 100644
--- a/Documentation/config/checkout.txt
+++ b/Documentation/config/checkout.txt
@@ -1,18 +1,23 @@
checkout.defaultRemote::
- When you run 'git checkout <something>'
- or 'git switch <something>' and only have one
+ When you run `git checkout <something>`
+ or `git switch <something>` and only have one
remote, it may implicitly fall back on checking out and
- tracking e.g. 'origin/<something>'. This stops working as soon
- as you have more than one remote with a '<something>'
+ tracking e.g. `origin/<something>`. This stops working as soon
+ as you have more than one remote with a `<something>`
reference. This setting allows for setting the name of a
preferred remote that should always win when it comes to
disambiguation. The typical use-case is to set this to
`origin`.
+
Currently this is used by linkgit:git-switch[1] and
-linkgit:git-checkout[1] when 'git checkout <something>'
-or 'git switch <something>'
-will checkout the '<something>' branch on another remote,
-and by linkgit:git-worktree[1] when 'git worktree add' refers to a
+linkgit:git-checkout[1] when `git checkout <something>`
+or `git switch <something>`
+will checkout the `<something>` branch on another remote,
+and by linkgit:git-worktree[1] when `git worktree add` refers to a
remote branch. This setting might be used for other checkout-like
commands or functionality in the future.
+
+checkout.guess::
+ Provides the default value for the `--guess` or `--no-guess`
+ option in `git checkout` and `git switch`. See
+ linkgit:git-switch[1] and linkgit:git-checkout[1].
diff --git a/Documentation/config/clone.txt b/Documentation/config/clone.txt
new file mode 100644
index 0000000000..47de36a5fe
--- /dev/null
+++ b/Documentation/config/clone.txt
@@ -0,0 +1,4 @@
+clone.defaultRemoteName::
+ The name of the remote to create when cloning a repository. Defaults to
+ `origin`, and can be overridden by passing the `--origin` command-line
+ option to linkgit:git-clone[1].
diff --git a/Documentation/config/core.txt b/Documentation/config/core.txt
index 02002cf109..160aacad84 100644
--- a/Documentation/config/core.txt
+++ b/Documentation/config/core.txt
@@ -606,8 +606,8 @@ core.useReplaceRefs::
core.multiPackIndex::
Use the multi-pack-index file to track multiple packfiles using a
- single index. See link:technical/multi-pack-index.html[the
- multi-pack-index design document].
+ single index. See linkgit:git-multi-pack-index[1] for more
+ information. Defaults to true.
core.sparseCheckout::
Enable "sparse checkout" feature. See linkgit:git-sparse-checkout[1]
diff --git a/Documentation/config/credential.txt b/Documentation/config/credential.txt
index 9d01641c28..512f31876e 100644
--- a/Documentation/config/credential.txt
+++ b/Documentation/config/credential.txt
@@ -28,3 +28,9 @@ credential.<url>.*::
credentialCache.ignoreSIGHUP::
Tell git-credential-cache--daemon to ignore SIGHUP, instead of quitting.
+
+credentialStore.lockTimeoutMS::
+ The length of time, in milliseconds, for git-credential-store to retry
+ when trying to lock the credentials file. Value 0 means not to retry at
+ all; -1 means to try indefinitely. Default is 1000 (i.e., retry for
+ 1s).
diff --git a/Documentation/config/format.txt b/Documentation/config/format.txt
index c2efd8758a..fdbc06a4d2 100644
--- a/Documentation/config/format.txt
+++ b/Documentation/config/format.txt
@@ -79,7 +79,7 @@ format.thread::
format.signOff::
A boolean value which lets you enable the `-s/--signoff` option of
- format-patch by default. *Note:* Adding the Signed-off-by: line to a
+ format-patch by default. *Note:* Adding the `Signed-off-by` trailer to a
patch should be a conscious act and means that you certify you have
the rights to submit this work under the same open source license.
Please see the 'SubmittingPatches' document for further discussion.
@@ -94,6 +94,11 @@ format.outputDirectory::
Set a custom directory to store the resulting files instead of the
current working directory. All directory components will be created.
+format.filenameMaxLength::
+ The maximum length of the output filenames generated by the
+ `format-patch` command; defaults to 64. Can be overridden
+ by the `--filename-max-length=<n>` command line option.
+
format.useAutoBase::
A boolean value which lets you enable the `--base=auto` option of
format-patch by default. Can also be set to "whenAble" to allow
diff --git a/Documentation/config/gc.txt b/Documentation/config/gc.txt
index 00ea0a678e..c834e07991 100644
--- a/Documentation/config/gc.txt
+++ b/Documentation/config/gc.txt
@@ -44,9 +44,9 @@ gc.autoDetach::
gc.bigPackThreshold::
If non-zero, all packs larger than this limit are kept when
- `git gc` is run. This is very similar to `--keep-base-pack`
+ `git gc` is run. This is very similar to `--keep-largest-pack`
except that all packs that meet the threshold are kept, not
- just the base pack. Defaults to zero. Common unit suffixes of
+ just the largest pack. Defaults to zero. Common unit suffixes of
'k', 'm', or 'g' are supported.
+
Note that if the number of kept packs is more than gc.autoPackLimit,
@@ -57,7 +57,7 @@ gc.autoPackLimit and gc.bigPackThreshold should be respected again.
If the amount of memory estimated for `git repack` to run smoothly is
not available and `gc.bigPackThreshold` is not set, the largest pack
will also be excluded (this is the equivalent of running `git gc` with
-`--keep-base-pack`).
+`--keep-largest-pack`).
gc.writeCommitGraph::
If true, then gc will rewrite the commit-graph file when
diff --git a/Documentation/config/help.txt b/Documentation/config/help.txt
index 224bbf5a28..783a90a0f9 100644
--- a/Documentation/config/help.txt
+++ b/Documentation/config/help.txt
@@ -8,13 +8,14 @@ help.format::
the default. 'web' and 'html' are the same.
help.autoCorrect::
- Automatically correct and execute mistyped commands after
- waiting for the given number of deciseconds (0.1 sec). If more
- than one command can be deduced from the entered text, nothing
- will be executed. If the value of this option is negative,
- the corrected command will be executed immediately. If the
- value is 0 - the command will be just shown but not executed.
- This is the default.
+ If git detects typos and can identify exactly one valid command similar
+ to the error, git will automatically run the intended command after
+ waiting a duration of time defined by this configuration value in
+ deciseconds (0.1 sec). If this value is 0, the suggested corrections
+ will be shown, but not executed. If it is a negative integer, or
+ "immediate", the suggested command
+ is run immediately. If "never", suggestions are not shown at all. The
+ default value is zero.
help.htmlPath::
Specify the path where the HTML documentation resides. File system paths
diff --git a/Documentation/config/maintenance.txt b/Documentation/config/maintenance.txt
index 7cc6700d57..a5ead09e4b 100644
--- a/Documentation/config/maintenance.txt
+++ b/Documentation/config/maintenance.txt
@@ -1,3 +1,23 @@
+maintenance.auto::
+ This boolean config option controls whether some commands run
+ `git maintenance run --auto` after doing their normal work. Defaults
+ to true.
+
+maintenance.strategy::
+ This string config option provides a way to specify one of a few
+ recommended schedules for background maintenance. This only affects
+ which tasks are run during `git maintenance run --schedule=X`
+ commands, provided no `--task=<task>` arguments are provided.
+ Further, if a `maintenance.<task>.schedule` config value is set,
+ then that value is used instead of the one provided by
+ `maintenance.strategy`. The possible strategy strings are:
++
+* `none`: This default setting implies no task are run at any schedule.
+* `incremental`: This setting optimizes for performing small maintenance
+ activities that do not delete any data. This does not schedule the `gc`
+ task, but runs the `prefetch` and `commit-graph` tasks hourly and the
+ `loose-objects` and `incremental-repack` tasks daily.
+
maintenance.<task>.enabled::
This boolean config option controls whether the maintenance task
with name `<task>` is run when no `--task` option is specified to
@@ -5,6 +25,11 @@ maintenance.<task>.enabled::
`--task` option exists. By default, only `maintenance.gc.enabled`
is true.
+maintenance.<task>.schedule::
+ This config option controls whether or not the given `<task>` runs
+ during a `git maintenance run --schedule=<frequency>` command. The
+ value must be one of "hourly", "daily", or "weekly".
+
maintenance.commit-graph.auto::
This integer config option controls how often the `commit-graph` task
should be run as part of `git maintenance run --auto`. If zero, then
@@ -14,3 +39,21 @@ maintenance.commit-graph.auto::
reachable commits that are not in the commit-graph file is at least
the value of `maintenance.commit-graph.auto`. The default value is
100.
+
+maintenance.loose-objects.auto::
+ This integer config option controls how often the `loose-objects` task
+ should be run as part of `git maintenance run --auto`. If zero, then
+ the `loose-objects` task will not run with the `--auto` option. A
+ negative value will force the task to run every time. Otherwise, a
+ positive value implies the command should run when the number of
+ loose objects is at least the value of `maintenance.loose-objects.auto`.
+ The default value is 100.
+
+maintenance.incremental-repack.auto::
+ This integer config option controls how often the `incremental-repack`
+ task should be run as part of `git maintenance run --auto`. If zero,
+ then the `incremental-repack` task will not run with the `--auto`
+ option. A negative value will force the task to run every time.
+ Otherwise, a positive value implies the command should run when the
+ number of pack-files not in the multi-pack-index is at least the value
+ of `maintenance.incremental-repack.auto`. The default value is 10.
diff --git a/Documentation/config/push.txt b/Documentation/config/push.txt
index f5e5b38c68..21b256e0a4 100644
--- a/Documentation/config/push.txt
+++ b/Documentation/config/push.txt
@@ -114,3 +114,9 @@ push.recurseSubmodules::
specifying '--recurse-submodules=check|on-demand|no'.
If not set, 'no' is used by default, unless 'submodule.recurse' is
set (in which case a 'true' value means 'on-demand').
+
+push.useForceIfIncludes::
+ If set to "true", it is equivalent to specifying
+ `--force-if-includes` as an option to linkgit:git-push[1]
+ in the command line. Adding `--no-force-if-includes` at the
+ time of push overrides this configuration setting.
diff --git a/Documentation/config/transfer.txt b/Documentation/config/transfer.txt
index f5b6245270..505126a780 100644
--- a/Documentation/config/transfer.txt
+++ b/Documentation/config/transfer.txt
@@ -69,3 +69,7 @@ transfer.unpackLimit::
When `fetch.unpackLimit` or `receive.unpackLimit` are
not set, the value of this variable is used instead.
The default value is 100.
+
+transfer.advertiseSID::
+ Boolean. When true, client and server processes will advertise their
+ unique session IDs to their remote counterpart. Defaults to false.
diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt
index 573fb9bb71..746b144c76 100644
--- a/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt
@@ -36,9 +36,9 @@ endif::git-format-patch[]
-U<n>::
--unified=<n>::
Generate diffs with <n> lines of context instead of
- the usual three. Implies `--patch`.
+ the usual three.
ifndef::git-format-patch[]
- Implies `-p`.
+ Implies `--patch`.
endif::git-format-patch[]
--output=<file>::
@@ -441,12 +441,16 @@ endif::git-format-patch[]
--binary::
In addition to `--full-index`, output a binary diff that
- can be applied with `git-apply`. Implies `--patch`.
+ can be applied with `git-apply`.
+ifndef::git-format-patch[]
+ Implies `--patch`.
+endif::git-format-patch[]
--abbrev[=<n>]::
Instead of showing the full 40-byte hexadecimal object
name in diff-raw format output and diff-tree header
- lines, show only a partial prefix.
+ lines, show the shortest prefix that is at least '<n>'
+ hexdigits long that uniquely refers the object.
In diff-patch output format, `--full-index` takes higher
precedence, i.e. if `--full-index` is specified, full blob
names will be shown regardless of `--abbrev`.
@@ -687,6 +691,11 @@ endif::git-format-patch[]
--ignore-blank-lines::
Ignore changes whose lines are all blank.
+-I<regex>::
+--ignore-matching-lines=<regex>::
+ Ignore changes whose all lines match <regex>. This option may
+ be specified more than once.
+
--inter-hunk-context=<lines>::
Show the context between diff hunks, up to the specified number
of lines, thereby fusing hunks that are close to each other.
@@ -695,7 +704,10 @@ endif::git-format-patch[]
-W::
--function-context::
- Show whole surrounding functions of changes.
+ Show whole function as context lines for each change.
+ The function names are determined in the same way as
+ `git diff` works out patch hunk headers (see 'Defining a
+ custom hunk-header' in linkgit:gitattributes[5]).
ifndef::git-format-patch[]
ifndef::git-log[]
diff --git a/Documentation/git-am.txt b/Documentation/git-am.txt
index 38c0852139..06bc063542 100644
--- a/Documentation/git-am.txt
+++ b/Documentation/git-am.txt
@@ -33,7 +33,7 @@ OPTIONS
-s::
--signoff::
- Add a `Signed-off-by:` line to the commit message, using
+ Add a `Signed-off-by` trailer to the commit message, using
the committer identity of yourself.
See the signoff option in linkgit:git-commit[1] for more information.
diff --git a/Documentation/git-blame.txt b/Documentation/git-blame.txt
index 7e81541996..34b496d485 100644
--- a/Documentation/git-blame.txt
+++ b/Documentation/git-blame.txt
@@ -87,7 +87,9 @@ include::blame-options.txt[]
--abbrev=<n>::
Instead of using the default 7+1 hexadecimal digits as the
- abbreviated object name, use <n>+1 digits. Note that 1 column
+ abbreviated object name, use <m>+1 digits, where <m> is at
+ least <n> but ensures the commit object names are unique.
+ Note that 1 column
is used for a caret to mark the boundary commit.
diff --git a/Documentation/git-branch.txt b/Documentation/git-branch.txt
index ace4ad3da8..adaa1782a8 100644
--- a/Documentation/git-branch.txt
+++ b/Documentation/git-branch.txt
@@ -9,7 +9,7 @@ SYNOPSIS
--------
[verse]
'git branch' [--color[=<when>] | --no-color] [--show-current]
- [-v [--abbrev=<length> | --no-abbrev]]
+ [-v [--abbrev=<n> | --no-abbrev]]
[--column[=<options>] | --no-column] [--sort=<key>]
[--merged [<commit>]] [--no-merged [<commit>]]
[--contains [<commit>]] [--no-contains [<commit>]]
@@ -194,8 +194,10 @@ This option is only applicable in non-verbose mode.
Be more quiet when creating or deleting a branch, suppressing
non-error messages.
---abbrev=<length>::
- Alter the sha1's minimum display length in the output listing.
+--abbrev=<n>::
+ In the verbose listing that show the commit object name,
+ show the shortest prefix that is at least '<n>' hexdigits
+ long that uniquely refers the object.
The default value is 7 and can be overridden by the `core.abbrev`
config option.
diff --git a/Documentation/git-checkout.txt b/Documentation/git-checkout.txt
index afa5c11fd3..b1a6fe4499 100644
--- a/Documentation/git-checkout.txt
+++ b/Documentation/git-checkout.txt
@@ -192,7 +192,10 @@ branches from there if `<branch>` is ambiguous but exists on the
'origin' remote. See also `checkout.defaultRemote` in
linkgit:git-config[1].
+
-Use `--no-guess` to disable this.
+`--guess` is the default behavior. Use `--no-guess` to disable it.
++
+The default behavior can be set via the `checkout.guess` configuration
+variable.
-l::
Create the new branch's reflog; see linkgit:git-branch[1] for
@@ -351,6 +354,10 @@ leave out at most one of `A` and `B`, in which case it defaults to `HEAD`.
<tree-ish>::
Tree to checkout from (when paths are given). If not specified,
the index will be used.
++
+As a special case, you may use `"A...B"` as a shortcut for the
+merge base of `A` and `B` if there is exactly one merge base. You can
+leave out at most one of `A` and `B`, in which case it defaults to `HEAD`.
\--::
Do not interpret any more arguments as options.
diff --git a/Documentation/git-cherry-pick.txt b/Documentation/git-cherry-pick.txt
index 75feeef08a..5d750314b2 100644
--- a/Documentation/git-cherry-pick.txt
+++ b/Documentation/git-cherry-pick.txt
@@ -104,7 +104,7 @@ effect to your index in a row.
-s::
--signoff::
- Add Signed-off-by line at the end of the commit message.
+ Add a `Signed-off-by` trailer at the end of the commit message.
See the signoff option in linkgit:git-commit[1] for more information.
-S[<keyid>]::
diff --git a/Documentation/git-clone.txt b/Documentation/git-clone.txt
index 097e6a86c5..876aedcd47 100644
--- a/Documentation/git-clone.txt
+++ b/Documentation/git-clone.txt
@@ -183,8 +183,9 @@ objects from the source repository into a pack in the cloned repository.
-o <name>::
--origin <name>::
- Instead of using the remote name `origin` to keep track
- of the upstream repository, use `<name>`.
+ Instead of using the remote name `origin` to keep track of the upstream
+ repository, use `<name>`. Overrides `clone.defaultRemoteName` from the
+ config.
-b <name>::
--branch <name>::
diff --git a/Documentation/git-commit-graph.txt b/Documentation/git-commit-graph.txt
index de6b6de230..e1f48c95b3 100644
--- a/Documentation/git-commit-graph.txt
+++ b/Documentation/git-commit-graph.txt
@@ -39,7 +39,9 @@ COMMANDS
--------
'write'::
-Write a commit-graph file based on the commits found in packfiles.
+Write a commit-graph file based on the commits found in packfiles. If
+the config option `core.commitGraph` is disabled, then this command will
+output a warning, then return success without writing a commit-graph file.
+
With the `--stdin-packs` option, generate the new commit graph by
walking objects only in the specified pack-indexes. (Cannot be combined
diff --git a/Documentation/git-commit.txt b/Documentation/git-commit.txt
index a3baea32ae..17150fa7ea 100644
--- a/Documentation/git-commit.txt
+++ b/Documentation/git-commit.txt
@@ -59,6 +59,7 @@ commit by giving the same set of parameters (options and paths).
If you make a commit and then find a mistake immediately after
that, you can recover from it with 'git reset'.
+:git-commit: 1
OPTIONS
-------
@@ -163,14 +164,7 @@ The `-m` option is mutually exclusive with `-c`, `-C`, and `-F`.
message, the commit is aborted. This has no effect when a message
is given by other means, e.g. with the `-m` or `-F` options.
--s::
---signoff::
- Add Signed-off-by line by the committer at the end of the commit
- log message. The meaning of a signoff depends on the project,
- but it typically certifies that committer has
- the rights to submit this work under the same license and
- agrees to a Developer Certificate of Origin
- (see http://developercertificate.org/ for more information).
+include::signoff-option.txt[]
-n::
--no-verify::
diff --git a/Documentation/git-config.txt b/Documentation/git-config.txt
index 7573160f21..0e9351d3cb 100644
--- a/Documentation/git-config.txt
+++ b/Documentation/git-config.txt
@@ -9,15 +9,15 @@ git-config - Get and set repository or global options
SYNOPSIS
--------
[verse]
-'git config' [<file-option>] [--type=<type>] [--show-origin] [--show-scope] [-z|--null] name [value [value_regex]]
+'git config' [<file-option>] [--type=<type>] [--fixed-value] [--show-origin] [--show-scope] [-z|--null] name [value [value-pattern]]
'git config' [<file-option>] [--type=<type>] --add name value
-'git config' [<file-option>] [--type=<type>] --replace-all name value [value_regex]
-'git config' [<file-option>] [--type=<type>] [--show-origin] [--show-scope] [-z|--null] --get name [value_regex]
-'git config' [<file-option>] [--type=<type>] [--show-origin] [--show-scope] [-z|--null] --get-all name [value_regex]
-'git config' [<file-option>] [--type=<type>] [--show-origin] [--show-scope] [-z|--null] [--name-only] --get-regexp name_regex [value_regex]
+'git config' [<file-option>] [--type=<type>] [--fixed-value] --replace-all name value [value-pattern]
+'git config' [<file-option>] [--type=<type>] [--show-origin] [--show-scope] [-z|--null] [--fixed-value] --get name [value-pattern]
+'git config' [<file-option>] [--type=<type>] [--show-origin] [--show-scope] [-z|--null] [--fixed-value] --get-all name [value-pattern]
+'git config' [<file-option>] [--type=<type>] [--show-origin] [--show-scope] [-z|--null] [--fixed-value] [--name-only] --get-regexp name_regex [value-pattern]
'git config' [<file-option>] [--type=<type>] [-z|--null] --get-urlmatch name URL
-'git config' [<file-option>] --unset name [value_regex]
-'git config' [<file-option>] --unset-all name [value_regex]
+'git config' [<file-option>] [--fixed-value] --unset name [value-pattern]
+'git config' [<file-option>] [--fixed-value] --unset-all name [value-pattern]
'git config' [<file-option>] --rename-section old_name new_name
'git config' [<file-option>] --remove-section name
'git config' [<file-option>] [--show-origin] [--show-scope] [-z|--null] [--name-only] -l | --list
@@ -33,10 +33,13 @@ escaped.
Multiple lines can be added to an option by using the `--add` option.
If you want to update or unset an option which can occur on multiple
-lines, a POSIX regexp `value_regex` needs to be given. Only the
-existing values that match the regexp are updated or unset. If
-you want to handle the lines that do *not* match the regex, just
-prepend a single exclamation mark in front (see also <<EXAMPLES>>).
+lines, a `value-pattern` (which is an extended regular expression,
+unless the `--fixed-value` option is given) needs to be given. Only the
+existing values that match the pattern are updated or unset. If
+you want to handle the lines that do *not* match the pattern, just
+prepend a single exclamation mark in front (see also <<EXAMPLES>>),
+but note that this only works when the `--fixed-value` option is not
+in use.
The `--type=<type>` option instructs 'git config' to ensure that incoming and
outgoing values are canonicalize-able under the given <type>. If no
@@ -73,11 +76,11 @@ OPTIONS
--replace-all::
Default behavior is to replace at most one line. This replaces
- all lines matching the key (and optionally the value_regex).
+ all lines matching the key (and optionally the `value-pattern`).
--add::
Adds a new line to the option without altering any existing
- values. This is the same as providing '^$' as the value_regex
+ values. This is the same as providing '^$' as the `value-pattern`
in `--replace-all`.
--get::
@@ -165,6 +168,12 @@ See also <<FILES>>.
--list::
List all variables set in config file, along with their values.
+--fixed-value::
+ When used with the `value-pattern` argument, treat `value-pattern` as
+ an exact string instead of a regular expression. This will restrict
+ the name/value pairs that are matched to only those where the value
+ is exactly equal to the `value-pattern`.
+
--type <type>::
'git config' will ensure that any input or output is valid under the given
type constraint(s), and will canonicalize outgoing values in `<type>`'s
diff --git a/Documentation/git-diff-index.txt b/Documentation/git-diff-index.txt
index f4bd8155c0..27acb31cbf 100644
--- a/Documentation/git-diff-index.txt
+++ b/Documentation/git-diff-index.txt
@@ -9,7 +9,7 @@ git-diff-index - Compare a tree to the working tree or index
SYNOPSIS
--------
[verse]
-'git diff-index' [-m] [--cached] [<common diff options>] <tree-ish> [<path>...]
+'git diff-index' [-m] [--cached] [--merge-base] [<common diff options>] <tree-ish> [<path>...]
DESCRIPTION
-----------
@@ -27,7 +27,12 @@ include::diff-options.txt[]
The id of a tree object to diff against.
--cached::
- do not consider the on-disk file at all
+ Do not consider the on-disk file at all.
+
+--merge-base::
+ Instead of comparing <tree-ish> directly, use the merge base
+ between <tree-ish> and HEAD instead. <tree-ish> must be a
+ commit.
-m::
By default, files recorded in the index but not checked
diff --git a/Documentation/git-diff-tree.txt b/Documentation/git-diff-tree.txt
index 5c8a2a5e97..2fc24c542f 100644
--- a/Documentation/git-diff-tree.txt
+++ b/Documentation/git-diff-tree.txt
@@ -10,7 +10,7 @@ SYNOPSIS
--------
[verse]
'git diff-tree' [--stdin] [-m] [-s] [-v] [--no-commit-id] [--pretty]
- [-t] [-r] [-c | --cc] [--combined-all-paths] [--root]
+ [-t] [-r] [-c | --cc] [--combined-all-paths] [--root] [--merge-base]
[<common diff options>] <tree-ish> [<tree-ish>] [<path>...]
DESCRIPTION
@@ -43,6 +43,11 @@ include::diff-options.txt[]
When `--root` is specified the initial commit will be shown as a big
creation event. This is equivalent to a diff against the NULL tree.
+--merge-base::
+ Instead of comparing the <tree-ish>s directly, use the merge
+ base between the two <tree-ish>s as the "before" side. There
+ must be two <tree-ish>s given and they must both be commits.
+
--stdin::
When `--stdin` is specified, the command does not take
<tree-ish> arguments from the command line. Instead, it
diff --git a/Documentation/git-diff.txt b/Documentation/git-diff.txt
index 727f24d16e..7f4c8a8ce7 100644
--- a/Documentation/git-diff.txt
+++ b/Documentation/git-diff.txt
@@ -10,8 +10,8 @@ SYNOPSIS
--------
[verse]
'git diff' [<options>] [<commit>] [--] [<path>...]
-'git diff' [<options>] --cached [<commit>] [--] [<path>...]
-'git diff' [<options>] <commit> [<commit>...] <commit> [--] [<path>...]
+'git diff' [<options>] --cached [--merge-base] [<commit>] [--] [<path>...]
+'git diff' [<options>] [--merge-base] <commit> [<commit>...] <commit> [--] [<path>...]
'git diff' [<options>] <commit>...<commit> [--] [<path>...]
'git diff' [<options>] <blob> <blob>
'git diff' [<options>] --no-index [--] <path> <path>
@@ -40,7 +40,7 @@ files on disk.
or when running the command outside a working tree
controlled by Git. This form implies `--exit-code`.
-'git diff' [<options>] --cached [<commit>] [--] [<path>...]::
+'git diff' [<options>] --cached [--merge-base] [<commit>] [--] [<path>...]::
This form is to view the changes you staged for the next
commit relative to the named <commit>. Typically you
@@ -49,6 +49,10 @@ files on disk.
If HEAD does not exist (e.g. unborn branches) and
<commit> is not given, it shows all staged changes.
--staged is a synonym of --cached.
++
+If --merge-base is given, instead of using <commit>, use the merge base
+of <commit> and HEAD. `git diff --merge-base A` is equivalent to
+`git diff $(git merge-base A HEAD)`.
'git diff' [<options>] <commit> [--] [<path>...]::
@@ -58,23 +62,27 @@ files on disk.
branch name to compare with the tip of a different
branch.
-'git diff' [<options>] <commit> <commit> [--] [<path>...]::
+'git diff' [<options>] [--merge-base] <commit> <commit> [--] [<path>...]::
This is to view the changes between two arbitrary
<commit>.
++
+If --merge-base is given, use the merge base of the two commits for the
+"before" side. `git diff --merge-base A B` is equivalent to
+`git diff $(git merge-base A B) B`.
'git diff' [<options>] <commit> <commit>... <commit> [--] [<path>...]::
This form is to view the results of a merge commit. The first
listed <commit> must be the merge itself; the remaining two or
more commits should be its parents. A convenient way to produce
- the desired set of revisions is to use the {caret}@ suffix.
+ the desired set of revisions is to use the `^@` suffix.
For instance, if `master` names a merge commit, `git diff master
master^@` gives the same combined diff as `git show master`.
'git diff' [<options>] <commit>..<commit> [--] [<path>...]::
- This is synonymous to the earlier form (without the "..") for
+ This is synonymous to the earlier form (without the `..`) for
viewing the changes between two arbitrary <commit>. If <commit> on
one side is omitted, it will have the same effect as
using HEAD instead.
@@ -83,20 +91,20 @@ files on disk.
This form is to view the changes on the branch containing
and up to the second <commit>, starting at a common ancestor
- of both <commit>. "git diff A\...B" is equivalent to
- "git diff $(git merge-base A B) B". You can omit any one
+ of both <commit>. `git diff A...B` is equivalent to
+ `git diff $(git merge-base A B) B`. You can omit any one
of <commit>, which has the same effect as using HEAD instead.
Just in case you are doing something exotic, it should be
noted that all of the <commit> in the above description, except
-in the last two forms that use ".." notations, can be any
-<tree>.
+in the `--merge-base` case and in the last two forms that use `..`
+notations, can be any <tree>.
For a more complete list of ways to spell <commit>, see
"SPECIFYING REVISIONS" section in linkgit:gitrevisions[7].
However, "diff" is about comparing two _endpoints_, not ranges,
-and the range notations ("<commit>..<commit>" and
-"<commit>\...<commit>") do not mean a range as defined in the
+and the range notations (`<commit>..<commit>` and
+`<commit>...<commit>`) do not mean a range as defined in the
"SPECIFYING RANGES" section in linkgit:gitrevisions[7].
'git diff' [<options>] <blob> <blob>::
@@ -144,9 +152,9 @@ $ git diff HEAD <3>
+
<1> Changes in the working tree not yet staged for the next commit.
<2> Changes between the index and your last commit; what you
- would be committing if you run "git commit" without "-a" option.
+ would be committing if you run `git commit` without `-a` option.
<3> Changes in the working tree since your last commit; what you
- would be committing if you run "git commit -a"
+ would be committing if you run `git commit -a`
Comparing with arbitrary commits::
+
diff --git a/Documentation/git-for-each-repo.txt b/Documentation/git-for-each-repo.txt
new file mode 100644
index 0000000000..94bd19da26
--- /dev/null
+++ b/Documentation/git-for-each-repo.txt
@@ -0,0 +1,59 @@
+git-for-each-repo(1)
+====================
+
+NAME
+----
+git-for-each-repo - Run a Git command on a list of repositories
+
+
+SYNOPSIS
+--------
+[verse]
+'git for-each-repo' --config=<config> [--] <arguments>
+
+
+DESCRIPTION
+-----------
+Run a Git command on a list of repositories. The arguments after the
+known options or `--` indicator are used as the arguments for the Git
+subprocess.
+
+THIS COMMAND IS EXPERIMENTAL. THE BEHAVIOR MAY CHANGE.
+
+For example, we could run maintenance on each of a list of repositories
+stored in a `maintenance.repo` config variable using
+
+-------------
+git for-each-repo --config=maintenance.repo maintenance run
+-------------
+
+This will run `git -C <repo> maintenance run` for each value `<repo>`
+in the multi-valued config variable `maintenance.repo`.
+
+
+OPTIONS
+-------
+--config=<config>::
+ Use the given config variable as a multi-valued list storing
+ absolute path names. Iterate on that list of paths to run
+ the given arguments.
++
+These config values are loaded from system, global, and local Git config,
+as available. If `git for-each-repo` is run in a directory that is not a
+Git repository, then only the system and global config is used.
+
+
+SUBPROCESS BEHAVIOR
+-------------------
+
+If any `git -C <repo> <arguments>` subprocess returns a non-zero exit code,
+then the `git for-each-repo` process returns that exit code without running
+more subprocesses.
+
+Each `git -C <repo> <arguments>` subprocess inherits the standard file
+descriptors `stdin`, `stdout`, and `stderr`.
+
+
+GIT
+---
+Part of the linkgit:git[1] suite
diff --git a/Documentation/git-format-patch.txt b/Documentation/git-format-patch.txt
index 0f81d0437b..3e49bf2210 100644
--- a/Documentation/git-format-patch.txt
+++ b/Documentation/git-format-patch.txt
@@ -28,6 +28,7 @@ SYNOPSIS
[--no-notes | --notes[=<ref>]]
[--interdiff=<previous>]
[--range-diff=<previous> [--creation-factor=<percent>]]
+ [--filename-max-length=<n>]
[--progress]
[<common diff options>]
[ <since> | <revision range> ]
@@ -119,7 +120,7 @@ include::diff-options.txt[]
-s::
--signoff::
- Add `Signed-off-by:` line to the commit message, using
+ Add a `Signed-off-by` trailer to the commit message, using
the committer identity of yourself.
See the signoff option in linkgit:git-commit[1] for more information.
@@ -200,6 +201,13 @@ populated with placeholder text.
allows for useful naming of a patch series, and can be
combined with the `--numbered` option.
+--filename-max-length=<n>::
+ Instead of the standard 64 bytes, chomp the generated output
+ filenames at around '<n>' bytes (too short a value will be
+ silently raised to a reasonable length). Defaults to the
+ value of the `format.filenameMaxLength` configuration
+ variable, or 64 if unconfigured.
+
--rfc::
Alias for `--subject-prefix="RFC PATCH"`. RFC means "Request For
Comments"; use this when sending an experimental patch for
diff --git a/Documentation/git-grep.txt b/Documentation/git-grep.txt
index 6077ff01a4..4e0ba8234a 100644
--- a/Documentation/git-grep.txt
+++ b/Documentation/git-grep.txt
@@ -241,7 +241,7 @@ providing this option will cause it to die.
--show-function::
Show the preceding line that contains the function name of
the match, unless the matching line is a function name itself.
- The name is determined in the same way as 'git diff' works out
+ The name is determined in the same way as `git diff` works out
patch hunk headers (see 'Defining a custom hunk-header' in
linkgit:gitattributes[5]).
@@ -266,7 +266,9 @@ providing this option will cause it to die.
Show the surrounding text from the previous line containing a
function name up to the one before the next function name,
effectively showing the whole function in which the match was
- found.
+ found. The function names are determined in the same way as
+ `git diff` works out patch hunk headers (see 'Defining a
+ custom hunk-header' in linkgit:gitattributes[5]).
--threads <num>::
Number of grep worker threads to use.
diff --git a/Documentation/git-log.txt b/Documentation/git-log.txt
index 2b8ac5ff88..dd189a353a 100644
--- a/Documentation/git-log.txt
+++ b/Documentation/git-log.txt
@@ -77,20 +77,7 @@ produced by `--stat`, etc.
Intended to speed up tools that read log messages from `git log`
output by allowing them to allocate space in advance.
--L <start>,<end>:<file>::
--L :<funcname>:<file>::
- Trace the evolution of the line range given by "<start>,<end>"
- (or the function name regex <funcname>) within the <file>. You may
- not give any pathspec limiters. This is currently limited to
- a walk starting from a single revision, i.e., you may only
- give zero or one positive revision arguments, and
- <start> and <end> (or <funcname>) must exist in the starting revision.
- You can specify this option more than once. Implies `--patch`.
- Patch output can be suppressed using `--no-patch`, but other diff formats
- (namely `--raw`, `--numstat`, `--shortstat`, `--dirstat`, `--summary`,
- `--name-only`, `--name-status`, `--check`) are not currently implemented.
-+
-include::line-range-format.txt[]
+include::line-range-options.txt[]
<revision range>::
Show only commits in the specified revision range. When no
diff --git a/Documentation/git-ls-files.txt b/Documentation/git-ls-files.txt
index 3cb2ebb438..cbcf5263dd 100644
--- a/Documentation/git-ls-files.txt
+++ b/Documentation/git-ls-files.txt
@@ -19,7 +19,7 @@ SYNOPSIS
[--exclude-standard]
[--error-unmatch] [--with-tree=<tree-ish>]
[--full-name] [--recurse-submodules]
- [--abbrev] [--] [<file>...]
+ [--abbrev[=<n>]] [--] [<file>...]
DESCRIPTION
-----------
@@ -153,7 +153,8 @@ a space) at the start of each line:
--abbrev[=<n>]::
Instead of showing the full 40-byte hexadecimal object
- lines, show only a partial prefix.
+ lines, show the shortest prefix that is at least '<n>'
+ hexdigits long that uniquely refers the object.
Non default number of digits can be specified with --abbrev=<n>.
--debug::
diff --git a/Documentation/git-ls-tree.txt b/Documentation/git-ls-tree.txt
index a7515714da..db02d6d79a 100644
--- a/Documentation/git-ls-tree.txt
+++ b/Documentation/git-ls-tree.txt
@@ -62,7 +62,8 @@ OPTIONS
--abbrev[=<n>]::
Instead of showing the full 40-byte hexadecimal object
- lines, show only a partial prefix.
+ lines, show the shortest prefix that is at least '<n>'
+ hexdigits long that uniquely refers the object.
Non default number of digits can be specified with --abbrev=<n>.
--full-name::
diff --git a/Documentation/git-maintenance.txt b/Documentation/git-maintenance.txt
index 6abcb8255a..6fec1eb8dc 100644
--- a/Documentation/git-maintenance.txt
+++ b/Documentation/git-maintenance.txt
@@ -29,6 +29,32 @@ Git repository.
SUBCOMMANDS
-----------
+register::
+ Initialize Git config values so any scheduled maintenance will
+ start running on this repository. This adds the repository to the
+ `maintenance.repo` config variable in the current user's global
+ config and enables some recommended configuration values for
+ `maintenance.<task>.schedule`. The tasks that are enabled are safe
+ for running in the background without disrupting foreground
+ processes.
++
+The `register` subcomand will also set the `maintenance.strategy` config
+value to `incremental`, if this value is not previously set. The
+`incremental` strategy uses the following schedule for each maintenance
+task:
++
+--
+* `gc`: disabled.
+* `commit-graph`: hourly.
+* `prefetch`: hourly.
+* `loose-objects`: daily.
+* `incremental-repack`: daily.
+--
++
+`git maintenance register` will also disable foreground maintenance by
+setting `maintenance.auto = false` in the current repository. This config
+setting will remain after a `git maintenance unregister` command.
+
run::
Run one or more maintenance tasks. If one or more `--task` options
are specified, then those tasks are run in that order. Otherwise,
@@ -36,6 +62,22 @@ run::
config options are true. By default, only `maintenance.gc.enabled`
is true.
+start::
+ Start running maintenance on the current repository. This performs
+ the same config updates as the `register` subcommand, then updates
+ the background scheduler to run `git maintenance run --scheduled`
+ on an hourly basis.
+
+stop::
+ Halt the background maintenance schedule. The current repository
+ is not removed from the list of maintained repositories, in case
+ the background maintenance is restarted later.
+
+unregister::
+ Remove the current repository from background maintenance. This
+ only removes the repository from the configured list. It does not
+ stop the background maintenance processes from running.
+
TASKS
-----
@@ -47,6 +89,21 @@ commit-graph::
`commit-graph-chain` file. They will be deleted by a later run based
on the expiration delay.
+prefetch::
+ The `prefetch` task updates the object directory with the latest
+ objects from all registered remotes. For each remote, a `git fetch`
+ command is run. The refmap is custom to avoid updating local or remote
+ branches (those in `refs/heads` or `refs/remotes`). Instead, the
+ remote refs are stored in `refs/prefetch/<remote>/`. Also, tags are
+ not updated.
++
+This is done to avoid disrupting the remote-tracking branches. The end users
+expect these refs to stay unmoved unless they initiate a fetch. With prefetch
+task, however, the objects necessary to complete a later real fetch would
+already be obtained, so the real fetch would go faster. In the ideal case,
+it will just become an update to bunch of remote-tracking branches without
+any object transfer.
+
gc::
Clean up unnecessary files and optimize the local repository. "GC"
stands for "garbage collection," but this task performs many
@@ -55,6 +112,39 @@ gc::
be disruptive in some situations, as it deletes stale data. See
linkgit:git-gc[1] for more details on garbage collection in Git.
+loose-objects::
+ The `loose-objects` job cleans up loose objects and places them into
+ pack-files. In order to prevent race conditions with concurrent Git
+ commands, it follows a two-step process. First, it deletes any loose
+ objects that already exist in a pack-file; concurrent Git processes
+ will examine the pack-file for the object data instead of the loose
+ object. Second, it creates a new pack-file (starting with "loose-")
+ containing a batch of loose objects. The batch size is limited to 50
+ thousand objects to prevent the job from taking too long on a
+ repository with many loose objects. The `gc` task writes unreachable
+ objects as loose objects to be cleaned up by a later step only if
+ they are not re-added to a pack-file; for this reason it is not
+ advisable to enable both the `loose-objects` and `gc` tasks at the
+ same time.
+
+incremental-repack::
+ The `incremental-repack` job repacks the object directory
+ using the `multi-pack-index` feature. In order to prevent race
+ conditions with concurrent Git commands, it follows a two-step
+ process. First, it calls `git multi-pack-index expire` to delete
+ pack-files unreferenced by the `multi-pack-index` file. Second, it
+ calls `git multi-pack-index repack` to select several small
+ pack-files and repack them into a bigger one, and then update the
+ `multi-pack-index` entries that refer to the small pack-files to
+ refer to the new pack-file. This prepares those small pack-files
+ for deletion upon the next run of `git multi-pack-index expire`.
+ The selection of the small pack-files is such that the expected
+ size of the big pack-file is at least the batch size; see the
+ `--batch-size` option for the `repack` subcommand in
+ linkgit:git-multi-pack-index[1]. The default batch-size is zero,
+ which is a special case that attempts to repack all pack-files
+ into a single pack-file.
+
OPTIONS
-------
--auto::
@@ -62,7 +152,18 @@ OPTIONS
only if certain thresholds are met. For example, the `gc` task
runs when the number of loose objects exceeds the number stored
in the `gc.auto` config setting, or when the number of pack-files
- exceeds the `gc.autoPackLimit` config setting.
+ exceeds the `gc.autoPackLimit` config setting. Not compatible with
+ the `--schedule` option.
+
+--schedule::
+ When combined with the `run` subcommand, run maintenance tasks
+ only if certain time conditions are met, as specified by the
+ `maintenance.<task>.schedule` config value for each `<task>`.
+ This config value specifies a number of seconds since the last
+ time that task ran, according to the `maintenance.<task>.lastRun`
+ config value. The tasks that are tested are those provided by
+ the `--task=<task>` option(s) or those with
+ `maintenance.<task>.enabled` set to true.
--quiet::
Do not report progress or other information over `stderr`.
@@ -74,6 +175,50 @@ OPTIONS
`maintenance.<task>.enabled` configured as `true` are considered.
See the 'TASKS' section for the list of accepted `<task>` values.
+
+TROUBLESHOOTING
+---------------
+The `git maintenance` command is designed to simplify the repository
+maintenance patterns while minimizing user wait time during Git commands.
+A variety of configuration options are available to allow customizing this
+process. The default maintenance options focus on operations that complete
+quickly, even on large repositories.
+
+Users may find some cases where scheduled maintenance tasks do not run as
+frequently as intended. Each `git maintenance run` command takes a lock on
+the repository's object database, and this prevents other concurrent
+`git maintenance run` commands from running on the same repository. Without
+this safeguard, competing processes could leave the repository in an
+unpredictable state.
+
+The background maintenance schedule runs `git maintenance run` processes
+on an hourly basis. Each run executes the "hourly" tasks. At midnight,
+that process also executes the "daily" tasks. At midnight on the first day
+of the week, that process also executes the "weekly" tasks. A single
+process iterates over each registered repository, performing the scheduled
+tasks for that frequency. Depending on the number of registered
+repositories and their sizes, this process may take longer than an hour.
+In this case, multiple `git maintenance run` commands may run on the same
+repository at the same time, colliding on the object database lock. This
+results in one of the two tasks not running.
+
+If you find that some maintenance windows are taking longer than one hour
+to complete, then consider reducing the complexity of your maintenance
+tasks. For example, the `gc` task is much slower than the
+`incremental-repack` task. However, this comes at a cost of a slightly
+larger object database. Consider moving more expensive tasks to be run
+less frequently.
+
+Expert users may consider scheduling their own maintenance tasks using a
+different schedule than is available through `git maintenance start` and
+Git configuration options. These users should be aware of the object
+database lock and how concurrent `git maintenance run` commands behave.
+Further, the `git gc` command should not be combined with
+`git maintenance run` commands. `git gc` modifies the object database
+but does not take the lock in the same way as `git maintenance run`. If
+possible, use `git maintenance run --task=gc` instead of `git gc`.
+
+
GIT
---
Part of the linkgit:git[1] suite
diff --git a/Documentation/git-p4.txt b/Documentation/git-p4.txt
index dab9609013..ec233ac0c1 100644
--- a/Documentation/git-p4.txt
+++ b/Documentation/git-p4.txt
@@ -417,7 +417,7 @@ p4-post-changelist
~~~~~~~~~~~~~~~~~~
The `p4-post-changelist` hook is invoked after the submit has
-successfully occured in P4. It takes no parameters and is meant
+successfully occurred in P4. It takes no parameters and is meant
primarily for notification and cannot affect the outcome of the
git p4 submit action.
diff --git a/Documentation/git-parse-remote.txt b/Documentation/git-parse-remote.txt
deleted file mode 100644
index a45ea1ece8..0000000000
--- a/Documentation/git-parse-remote.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-git-parse-remote(1)
-===================
-
-NAME
-----
-git-parse-remote - Routines to help parsing remote repository access parameters
-
-
-SYNOPSIS
---------
-[verse]
-'. "$(git --exec-path)/git-parse-remote"'
-
-DESCRIPTION
------------
-This script is included in various scripts to supply
-routines to parse files under $GIT_DIR/remotes/ and
-$GIT_DIR/branches/ and configuration variables that are related
-to fetching, pulling and pushing.
-
-GIT
----
-Part of the linkgit:git[1] suite
diff --git a/Documentation/git-push.txt b/Documentation/git-push.txt
index 3b8053447e..ab103c82cf 100644
--- a/Documentation/git-push.txt
+++ b/Documentation/git-push.txt
@@ -13,7 +13,7 @@ SYNOPSIS
[--repo=<repository>] [-f | --force] [-d | --delete] [--prune] [-v | --verbose]
[-u | --set-upstream] [-o <string> | --push-option=<string>]
[--[no-]signed|--signed=(true|false|if-asked)]
- [--force-with-lease[=<refname>[:<expect>]]]
+ [--force-with-lease[=<refname>[:<expect>]] [--force-if-includes]]
[--no-verify] [<repository> [<refspec>...]]
DESCRIPTION
@@ -320,6 +320,14 @@ seen and are willing to overwrite, then rewrite history, and finally
force push changes to `master` if the remote version is still at
`base`, regardless of what your local `remotes/origin/master` has been
updated to in the background.
++
+Alternatively, specifying `--force-if-includes` as an ancillary option
+along with `--force-with-lease[=<refname>]` (i.e., without saying what
+exact commit the ref on the remote side must be pointing at, or which
+refs on the remote side are being protected) at the time of "push" will
+verify if updates from the remote-tracking refs that may have been
+implicitly updated in the background are integrated locally before
+allowing a forced update.
-f::
--force::
@@ -341,6 +349,22 @@ one branch, use a `+` in front of the refspec to push (e.g `git push
origin +master` to force a push to the `master` branch). See the
`<refspec>...` section above for details.
+--[no-]force-if-includes::
+ Force an update only if the tip of the remote-tracking ref
+ has been integrated locally.
++
+This option enables a check that verifies if the tip of the
+remote-tracking ref is reachable from one of the "reflog" entries of
+the local branch based in it for a rewrite. The check ensures that any
+updates from the remote have been incorporated locally by rejecting the
+forced update if that is not the case.
++
+If the option is passed without specifying `--force-with-lease`, or
+specified along with `--force-with-lease=<refname>:<expect>`, it is
+a "no-op".
++
+Specifying `--no-force-if-includes` disables this behavior.
+
--repo=<repository>::
This option is equivalent to the <repository> argument. If both
are specified, the command-line argument takes precedence.
diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt
index 38e15488f6..a0487b5cc5 100644
--- a/Documentation/git-rebase.txt
+++ b/Documentation/git-rebase.txt
@@ -496,7 +496,7 @@ See also INCOMPATIBLE OPTIONS below.
See also INCOMPATIBLE OPTIONS below.
--signoff::
- Add a Signed-off-by: trailer to all the rebased commits. Note
+ Add a `Signed-off-by` trailer to all the rebased commits. Note
that if `--interactive` is given then only commits marked to be
picked, edited or reworded will have the trailer added.
+
diff --git a/Documentation/git-remote.txt b/Documentation/git-remote.txt
index ea73386c81..31c29c9b31 100644
--- a/Documentation/git-remote.txt
+++ b/Documentation/git-remote.txt
@@ -203,6 +203,17 @@ The remote configuration is achieved using the `remote.origin.url` and
`remote.origin.fetch` configuration variables. (See
linkgit:git-config[1]).
+EXIT STATUS
+-----------
+
+On success, the exit status is `0`.
+
+When subcommands such as 'add', 'rename', and 'remove' can't find the
+remote in question, the exit status is `2`. When the remote already
+exists, the exit status is `3`.
+
+On any other error, the exit status may be any other non-zero value.
+
EXAMPLES
--------
diff --git a/Documentation/git-restore.txt b/Documentation/git-restore.txt
index 84c6c40010..55bde91ef9 100644
--- a/Documentation/git-restore.txt
+++ b/Documentation/git-restore.txt
@@ -40,6 +40,10 @@ OPTIONS
+
If not specified, the contents are restored from `HEAD` if `--staged` is
given, otherwise from the index.
++
+As a special case, you may use `"A...B"` as a shortcut for the
+merge base of `A` and `B` if there is exactly one merge base. You can
+leave out at most one of `A` and `B`, in which case it defaults to `HEAD`.
-p::
--patch::
diff --git a/Documentation/git-rev-parse.txt b/Documentation/git-rev-parse.txt
index 19b12b6d43..5013daa6ef 100644
--- a/Documentation/git-rev-parse.txt
+++ b/Documentation/git-rev-parse.txt
@@ -109,6 +109,10 @@ names an existing object that is a commit-ish (i.e. a commit, or an
annotated tag that points at a commit). To make sure that `$VAR`
names an existing object of any type, `git rev-parse "$VAR^{object}"`
can be used.
++
+Note that if you are verifying a name from an untrusted source, it is
+wise to use `--end-of-options` so that the name argument is not mistaken
+for another option.
-q::
--quiet::
@@ -446,7 +450,7 @@ $ git rev-parse --verify HEAD
* Print the commit object name from the revision in the $REV shell variable:
+
------------
-$ git rev-parse --verify $REV^{commit}
+$ git rev-parse --verify --end-of-options $REV^{commit}
------------
+
This will error out if $REV is empty or not a valid revision.
@@ -454,7 +458,7 @@ This will error out if $REV is empty or not a valid revision.
* Similar to above:
+
------------
-$ git rev-parse --default master --verify $REV
+$ git rev-parse --default master --verify --end-of-options $REV
------------
+
but if $REV is empty, the commit object name from master will be printed.
diff --git a/Documentation/git-revert.txt b/Documentation/git-revert.txt
index 044276e9da..bb92a4a451 100644
--- a/Documentation/git-revert.txt
+++ b/Documentation/git-revert.txt
@@ -99,7 +99,7 @@ effect to your index in a row.
-s::
--signoff::
- Add Signed-off-by line at the end of the commit message.
+ Add a `Signed-off-by` trailer at the end of the commit message.
See the signoff option in linkgit:git-commit[1] for more information.
--strategy=<strategy>::
diff --git a/Documentation/git-send-email.txt b/Documentation/git-send-email.txt
index 0a69810147..b7bbbeadef 100644
--- a/Documentation/git-send-email.txt
+++ b/Documentation/git-send-email.txt
@@ -313,7 +313,7 @@ Automating
the value of `sendemail.identity`.
--[no-]signed-off-by-cc::
- If this is set, add emails found in Signed-off-by: or Cc: lines to the
+ If this is set, add emails found in the `Signed-off-by` trailer or Cc: lines to the
cc list. Default is the value of `sendemail.signedoffbycc` configuration
value; if that is unspecified, default to --signed-off-by-cc.
@@ -340,7 +340,7 @@ Automating
except for self (use 'self' for that).
- 'bodycc' will avoid including anyone mentioned in Cc lines in the
patch body (commit message) except for self (use 'self' for that).
-- 'sob' will avoid including anyone mentioned in Signed-off-by lines except
+- 'sob' will avoid including anyone mentioned in the Signed-off-by trailers except
for self (use 'self' for that).
- 'misc-by' will avoid including anyone mentioned in Acked-by,
Reviewed-by, Tested-by and other "-by" lines in the patch body,
diff --git a/Documentation/git-svn.txt b/Documentation/git-svn.txt
index 6624a14fbd..67b143cc81 100644
--- a/Documentation/git-svn.txt
+++ b/Documentation/git-svn.txt
@@ -701,7 +701,7 @@ creating the branch or tag.
--use-log-author::
When retrieving svn commits into Git (as part of 'fetch', 'rebase', or
- 'dcommit' operations), look for the first `From:` or `Signed-off-by:` line
+ 'dcommit' operations), look for the first `From:` line or `Signed-off-by` trailer
in the log message and use that as the author string.
+
[verse]
@@ -710,7 +710,7 @@ config key: svn.useLogAuthor
--add-author-from::
When committing to svn from Git (as part of 'set-tree' or 'dcommit'
operations), if the existing log message doesn't already have a
- `From:` or `Signed-off-by:` line, append a `From:` line based on the
+ `From:` or `Signed-off-by` trailer, append a `From:` line based on the
Git commit's author string. If you use this, then `--use-log-author`
will retrieve a valid author string for all commits.
+
diff --git a/Documentation/git-switch.txt b/Documentation/git-switch.txt
index 3759c3a265..5c438cd505 100644
--- a/Documentation/git-switch.txt
+++ b/Documentation/git-switch.txt
@@ -103,6 +103,9 @@ ambiguous but exists on the 'origin' remote. See also
`checkout.defaultRemote` in linkgit:git-config[1].
+
`--guess` is the default behavior. Use `--no-guess` to disable it.
++
+The default behavior can be set via the `checkout.guess` configuration
+variable.
-f::
--force::
diff --git a/Documentation/git-update-ref.txt b/Documentation/git-update-ref.txt
index d401234b03..48b6683071 100644
--- a/Documentation/git-update-ref.txt
+++ b/Documentation/git-update-ref.txt
@@ -125,7 +125,8 @@ option::
start::
Start a transaction. In contrast to a non-transactional session, a
transaction will automatically abort if the session ends without an
- explicit commit.
+ explicit commit. This command may create a new empty transaction when
+ the current one has been committed or aborted already.
prepare::
Prepare to commit the transaction. This will create lock files for all
diff --git a/Documentation/git-worktree.txt b/Documentation/git-worktree.txt
index 32e8440cde..af06128cc9 100644
--- a/Documentation/git-worktree.txt
+++ b/Documentation/git-worktree.txt
@@ -96,8 +96,9 @@ list::
List details of each working tree. The main working tree is listed first,
followed by each of the linked working trees. The output details include
-whether the working tree is bare, the revision currently checked out, and the
-branch currently checked out (or "detached HEAD" if none).
+whether the working tree is bare, the revision currently checked out, the
+branch currently checked out (or "detached HEAD" if none), and "locked" if
+the worktree is locked.
lock::
diff --git a/Documentation/gitattributes.txt b/Documentation/gitattributes.txt
index 2d0a03715b..e84e104f93 100644
--- a/Documentation/gitattributes.txt
+++ b/Documentation/gitattributes.txt
@@ -802,6 +802,9 @@ patterns are available:
- `ada` suitable for source code in the Ada language.
+- `bash` suitable for source code in the Bourne-Again SHell language.
+ Covers a superset of POSIX shell function definitions.
+
- `bibtex` suitable for files with BibTeX coded references.
- `cpp` suitable for source code in the C and C++ languages.
diff --git a/Documentation/githooks.txt b/Documentation/githooks.txt
index 6e461ace6e..ffccfc7760 100644
--- a/Documentation/githooks.txt
+++ b/Documentation/githooks.txt
@@ -164,7 +164,7 @@ can also be used to refuse the commit after inspecting the message
file.
The default 'commit-msg' hook, when enabled, detects duplicate
-"Signed-off-by" lines, and aborts the commit if one is found.
+`Signed-off-by` trailers, and aborts the commit if one is found.
post-commit
~~~~~~~~~~~
@@ -655,7 +655,7 @@ p4-post-changelist
This hook is invoked by `git-p4 submit`.
The `p4-post-changelist` hook is invoked after the submit has
-successfully occured in P4. It takes no parameters and is meant
+successfully occurred in P4. It takes no parameters and is meant
primarily for notification and cannot affect the outcome of the
git p4 submit action.
diff --git a/Documentation/gitk.txt b/Documentation/gitk.txt
index c653ebb6a8..d50e9ed10e 100644
--- a/Documentation/gitk.txt
+++ b/Documentation/gitk.txt
@@ -98,25 +98,7 @@ linkgit:git-rev-list[1] for a complete list.
(See "History simplification" in linkgit:git-log[1] for a more
detailed explanation.)
--L<start>,<end>:<file>::
--L:<funcname>:<file>::
-
- Trace the evolution of the line range given by "<start>,<end>"
- (or the function name regex <funcname>) within the <file>. You may
- not give any pathspec limiters. This is currently limited to
- a walk starting from a single revision, i.e., you may only
- give zero or one positive revision arguments, and
- <start> and <end> (or <funcname>) must exist in the starting revision.
- You can specify this option more than once. Implies `--patch`.
- Patch output can be suppressed using `--no-patch`, but other diff formats
- (namely `--raw`, `--numstat`, `--shortstat`, `--dirstat`, `--summary`,
- `--name-only`, `--name-status`, `--check`) are not currently implemented.
-+
-*Note:* gitk (unlike linkgit:git-log[1]) currently only understands
-this option if you specify it "glued together" with its argument. Do
-*not* put a space after `-L`.
-+
-include::line-range-format.txt[]
+include::line-range-options.txt[]
<revision range>::
diff --git a/Documentation/glossary-content.txt b/Documentation/glossary-content.txt
index 090c888335..67c7a50b96 100644
--- a/Documentation/glossary-content.txt
+++ b/Documentation/glossary-content.txt
@@ -18,7 +18,7 @@
Untyped <<def_object,object>>, e.g. the contents of a file.
[[def_branch]]branch::
- A "branch" is an active line of development. The most recent
+ A "branch" is a line of development. The most recent
<<def_commit,commit>> on a branch is referred to as the tip of
that branch. The tip of the branch is referenced by a branch
<<def_head,head>>, which moves forward as additional development
diff --git a/Documentation/line-range-format.txt b/Documentation/line-range-format.txt
index 829676ff98..9b51e9fb66 100644
--- a/Documentation/line-range-format.txt
+++ b/Documentation/line-range-format.txt
@@ -1,30 +1,32 @@
-<start> and <end> can take one of these forms:
+'<start>' and '<end>' can take one of these forms:
- number
+
-If <start> or <end> is a number, it specifies an
+If '<start>' or '<end>' is a number, it specifies an
absolute line number (lines count from 1).
+
-- /regex/
+- `/regex/`
+
This form will use the first line matching the given
-POSIX regex. If <start> is a regex, it will search from the end of
+POSIX regex. If '<start>' is a regex, it will search from the end of
the previous `-L` range, if any, otherwise from the start of file.
-If <start> is ``^/regex/'', it will search from the start of file.
-If <end> is a regex, it will search
-starting at the line given by <start>.
+If '<start>' is `^/regex/`, it will search from the start of file.
+If '<end>' is a regex, it will search
+starting at the line given by '<start>'.
+
- +offset or -offset
+
-This is only valid for <end> and will specify a number
-of lines before or after the line given by <start>.
+This is only valid for '<end>' and will specify a number
+of lines before or after the line given by '<start>'.
+
-If ``:<funcname>'' is given in place of <start> and <end>, it is a
+If `:<funcname>` is given in place of '<start>' and '<end>', it is a
regular expression that denotes the range from the first funcname line
-that matches <funcname>, up to the next funcname line. ``:<funcname>''
+that matches '<funcname>', up to the next funcname line. `:<funcname>`
searches from the end of the previous `-L` range, if any, otherwise
-from the start of file. ``^:<funcname>'' searches from the start of
-file.
+from the start of file. `^:<funcname>` searches from the start of
+file. The function names are determined in the same way as `git diff`
+works out patch hunk headers (see 'Defining a custom hunk-header'
+in linkgit:gitattributes[5]).
diff --git a/Documentation/line-range-options.txt b/Documentation/line-range-options.txt
new file mode 100644
index 0000000000..8e295a62b8
--- /dev/null
+++ b/Documentation/line-range-options.txt
@@ -0,0 +1,15 @@
+-L<start>,<end>:<file>::
+-L:<funcname>:<file>::
+
+ Trace the evolution of the line range given by '<start>,<end>',
+ or by the function name regex '<funcname>', within the '<file>'. You may
+ not give any pathspec limiters. This is currently limited to
+ a walk starting from a single revision, i.e., you may only
+ give zero or one positive revision arguments, and
+ '<start>' and '<end>' (or '<funcname>') must exist in the starting revision.
+ You can specify this option more than once. Implies `--patch`.
+ Patch output can be suppressed using `--no-patch`, but other diff formats
+ (namely `--raw`, `--numstat`, `--shortstat`, `--dirstat`, `--summary`,
+ `--name-only`, `--name-status`, `--check`) are not currently implemented.
++
+include::line-range-format.txt[]
diff --git a/Documentation/merge-options.txt b/Documentation/merge-options.txt
index 80d4831662..eb0aabd396 100644
--- a/Documentation/merge-options.txt
+++ b/Documentation/merge-options.txt
@@ -77,16 +77,7 @@ When not possible, refuse to merge and exit with a non-zero status.
With --no-log do not list one-line descriptions from the
actual commits being merged.
---signoff::
---no-signoff::
- Add Signed-off-by line by the committer at the end of the commit
- log message. The meaning of a signoff depends on the project,
- but it typically certifies that committer has
- the rights to submit this work under the same license and
- agrees to a Developer Certificate of Origin
- (see http://developercertificate.org/ for more information).
-+
-With --no-signoff do not add a Signed-off-by line.
+include::signoff-option.txt[]
--stat::
-n::
diff --git a/Documentation/pretty-options.txt b/Documentation/pretty-options.txt
index 17c5aac4b7..27ddaf84a1 100644
--- a/Documentation/pretty-options.txt
+++ b/Documentation/pretty-options.txt
@@ -16,9 +16,9 @@ configuration (see linkgit:git-config[1]).
--abbrev-commit::
Instead of showing the full 40-byte hexadecimal commit object
- name, show only a partial prefix. Non default number of
- digits can be specified with "--abbrev=<n>" (which also modifies
- diff output, if it is displayed).
+ name, show a prefix that names the object uniquely.
+ "--abbrev=<n>" (which also modifies diff output, if it is displayed)
+ option can be used to specify the minimum length of the prefix.
+
This should make "--pretty=oneline" a whole lot more readable for
people using 80-column terminals.
diff --git a/Documentation/signoff-option.txt b/Documentation/signoff-option.txt
new file mode 100644
index 0000000000..12aa2333e4
--- /dev/null
+++ b/Documentation/signoff-option.txt
@@ -0,0 +1,18 @@
+ifdef::git-commit[]
+-s::
+endif::git-commit[]
+--signoff::
+--no-signoff::
+ Add a `Signed-off-by` trailer by the committer at the end of the commit
+ log message. The meaning of a signoff depends on the project
+ to which you're committing. For example, it may certify that
+ the committer has the rights to submit the work under the
+ project's license or agrees to some contributor representation,
+ such as a Developer Certificate of Origin.
+ (See http://developercertificate.org for the one used by the
+ Linux kernel and Git projects.) Consult the documentation or
+ leadership of the project to which you're contributing to
+ understand how the signoffs are used in that project.
++
+The --no-signoff option can be used to countermand an earlier --signoff
+option on the command line.
diff --git a/Documentation/technical/api-trace2.txt b/Documentation/technical/api-trace2.txt
index 6b6085585d..c65ffafc48 100644
--- a/Documentation/technical/api-trace2.txt
+++ b/Documentation/technical/api-trace2.txt
@@ -466,7 +466,7 @@ completed.)
`"error"`::
This event is emitted when one of the `error()`, `die()`,
- or `usage()` functions are called.
+ `warning()`, or `usage()` functions are called.
+
------------
{
diff --git a/Documentation/technical/directory-rename-detection.txt b/Documentation/technical/directory-rename-detection.txt
index 844629c8c4..49b83ef3cc 100644
--- a/Documentation/technical/directory-rename-detection.txt
+++ b/Documentation/technical/directory-rename-detection.txt
@@ -18,7 +18,8 @@ It is perhaps easiest to start with an example:
More interesting possibilities exist, though, such as:
* one side of history renames x -> z, and the other renames some file to
- x/e, causing the need for the merge to do a transitive rename.
+ x/e, causing the need for the merge to do a transitive rename so that
+ the rename ends up at z/e.
* one side of history renames x -> z, but also renames all files within x.
For example, x/a -> z/alpha, x/b -> z/bravo, etc.
@@ -35,7 +36,7 @@ More interesting possibilities exist, though, such as:
directory itself contained inner directories that were renamed to yet
other locations).
- * combinations of the above; see t/t6043-merge-rename-directories.sh for
+ * combinations of the above; see t/t6423-merge-rename-directories.sh for
various interesting cases.
Limitations -- applicability of directory renames
@@ -62,19 +63,19 @@ directory rename detection applies:
Limitations -- detailed rules and testcases
-------------------------------------------
-t/t6043-merge-rename-directories.sh contains extensive tests and commentary
+t/t6423-merge-rename-directories.sh contains extensive tests and commentary
which generate and explore the rules listed above. It also lists a few
additional rules:
a) If renames split a directory into two or more others, the directory
with the most renames, "wins".
- b) Avoid directory-rename-detection for a path, if that path is the
- source of a rename on either side of a merge.
-
- c) Only apply implicit directory renames to directories if the other side
+ b) Only apply implicit directory renames to directories if the other side
of history is the one doing the renaming.
+ c) Do not perform directory rename detection for directories which had no
+ new paths added to them.
+
Limitations -- support in different commands
--------------------------------------------
diff --git a/Documentation/technical/protocol-capabilities.txt b/Documentation/technical/protocol-capabilities.txt
index ba869a7d36..9dfade930d 100644
--- a/Documentation/technical/protocol-capabilities.txt
+++ b/Documentation/technical/protocol-capabilities.txt
@@ -27,8 +27,8 @@ and 'push-cert' capabilities are sent and recognized by the receive-pack
(push to server) process.
The 'ofs-delta' and 'side-band-64k' capabilities are sent and recognized
-by both upload-pack and receive-pack protocols. The 'agent' capability
-may optionally be sent in both protocols.
+by both upload-pack and receive-pack protocols. The 'agent' and 'session-id'
+capabilities may optionally be sent in both protocols.
All other capabilities are only recognized by the upload-pack (fetch
from server) process.
@@ -365,3 +365,16 @@ If the upload-pack server advertises the 'filter' capability,
fetch-pack may send "filter" commands to request a partial clone
or partial fetch and request that the server omit various objects
from the packfile.
+
+session-id=<session id>
+-----------------------
+
+The server may advertise a session ID that can be used to identify this process
+across multiple requests. The client may advertise its own session ID back to
+the server as well.
+
+Session IDs should be unique to a given process. They must fit within a
+packet-line, and must not contain non-printable or whitespace characters. The
+current implementation uses trace2 session IDs (see
+link:api-trace2.html[api-trace2] for details), but this may change and users of
+the session ID should not rely on this fact.
diff --git a/Documentation/technical/protocol-v2.txt b/Documentation/technical/protocol-v2.txt
index e597b74da3..85daeb5d9e 100644
--- a/Documentation/technical/protocol-v2.txt
+++ b/Documentation/technical/protocol-v2.txt
@@ -492,3 +492,16 @@ form `object-format=X`) to notify the client that the server is able to deal
with objects using hash algorithm X. If not specified, the server is assumed to
only handle SHA-1. If the client would like to use a hash algorithm other than
SHA-1, it should specify its object-format string.
+
+session-id=<session id>
+~~~~~~~~~~~~~~~~~~~~~~~
+
+The server may advertise a session ID that can be used to identify this process
+across multiple requests. The client may advertise its own session ID back to
+the server as well.
+
+Session IDs should be unique to a given process. They must fit within a
+packet-line, and must not contain non-printable or whitespace characters. The
+current implementation uses trace2 session IDs (see
+link:api-trace2.html[api-trace2] for details), but this may change and users of
+the session ID should not rely on this fact.