diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/RelNotes/2.19.0.txt | 184 | ||||
| -rw-r--r-- | Documentation/config.txt | 205 | ||||
| -rw-r--r-- | Documentation/diff-options.txt | 36 | ||||
| -rw-r--r-- | Documentation/fetch-options.txt | 19 | ||||
| -rw-r--r-- | Documentation/git-checkout.txt | 9 | ||||
| -rw-r--r-- | Documentation/git-commit-graph.txt | 14 | ||||
| -rw-r--r-- | Documentation/git-for-each-ref.txt | 2 | ||||
| -rw-r--r-- | Documentation/git-fsck.txt | 3 | ||||
| -rw-r--r-- | Documentation/git-gc.txt | 4 | ||||
| -rw-r--r-- | Documentation/git-grep.txt | 7 | ||||
| -rw-r--r-- | Documentation/git-interpret-trailers.txt | 9 | ||||
| -rw-r--r-- | Documentation/git-merge.txt | 16 | ||||
| -rw-r--r-- | Documentation/git-p4.txt | 8 | ||||
| -rw-r--r-- | Documentation/git-rebase.txt | 7 | ||||
| -rw-r--r-- | Documentation/git-tag.txt | 2 | ||||
| -rw-r--r-- | Documentation/git-worktree.txt | 9 | ||||
| -rw-r--r-- | Documentation/githooks.txt | 7 | ||||
| -rw-r--r-- | Documentation/technical/commit-graph.txt | 22 | ||||
| -rw-r--r-- | Documentation/technical/http-protocol.txt | 4 | ||||
| -rw-r--r-- | Documentation/technical/pack-protocol.txt | 3 |
20 files changed, 489 insertions, 81 deletions
diff --git a/Documentation/RelNotes/2.19.0.txt b/Documentation/RelNotes/2.19.0.txt index 7a5c5b82d4..5075bad51f 100644 --- a/Documentation/RelNotes/2.19.0.txt +++ b/Documentation/RelNotes/2.19.0.txt @@ -32,6 +32,39 @@ UI, Workflows & Features automatically switch to quoted-printable when there is such a line in the payload has been introduced and is made the default. + * "git checkout" and "git worktree add" learned to honor + checkout.defaultRemote when auto-vivifying a local branch out of a + remote tracking branch in a repository with multiple remotes that + have tracking branches that share the same names. + (merge 8d7b558bae ab/checkout-default-remote later to maint). + + * "git grep" learned the "--only-matching" option. + + * "git rebase --rebase-merges" mode now handles octopus merges as + well. + + * Add a server-side knob to skip commits in exponential/fibbonacci + stride in an attempt to cover wider swath of history with a smaller + number of iterations, potentially accepting a larger packfile + transfer, instead of going back one commit a time during common + ancestor discovery during the "git fetch" transaction. + (merge 42cc7485a2 jt/fetch-negotiator-skipping later to maint). + + * A new configuration variable core.usereplacerefs has been added, + primarily to help server installations that want to ignore the + replace mechanism altogether. + + * Teach "git tag -s" etc. a few configuration variables (gpg.format + that can be set to "openpgp" or "x509", and gpg.<format>.program + that is used to specify what program to use to deal with the format) + to allow x.509 certs with CMS via "gpgsm" to be used instead of + openpgp via "gnupg". + + * Many more strings are prepared for l10n. + + * "git p4 submit" learns to ask its own pre-submit hook if it should + continue with submitting. + Performance, Internal Implementation, Development Support etc. @@ -94,6 +127,72 @@ Performance, Internal Implementation, Development Support etc. * test-lint now looks for broken use of "VAR=VAL shell_func" in test scripts. + * Conversion from uchar[40] to struct object_id continues. + + * Recent "security fix" to pay attention to contents of ".gitmodules" + while accepting "git push" was a bit overly strict than necessary, + which has been adjusted. + + * "git fsck" learns to make sure the optional commit-graph file is in + a sane state. + + * "git diff --color-moved" feature has further been tweaked. + + * Code restructuring and a small fix to transport protocol v2 during + fetching. + + * Parsing of -L[<N>][,[<M>]] parameters "git blame" and "git log" + take has been tweaked. + + * lookup_commit_reference() and friends have been updated to find + in-core object for a specific in-core repository instance. + + * Various glitches in the heuristics of merge-recursive strategy have + been documented in new tests. + + * "git fetch" learned a new option "--negotiation-tip" to limit the + set of commits it tells the other end as "have", to reduce wasted + bandwidth and cycles, which would be helpful when the receiving + repository has a lot of refs that have little to do with the + history at the remote it is fetching from. + + * For a large tree, the index needs to hold many cache entries + allocated on heap. These cache entries are now allocated out of a + dedicated memory pool to amortize malloc(3) overhead. + + * Tests to cover various conflicting cases have been added for + merge-recursive. + + * Tests to cover conflict cases that involve submodules have been + added for merge-recursive. + + * Look for broken "&&" chains that are hidden in subshell, many of + which have been found and corrected. + + * The singleton commit-graph in-core instance is made per in-core + repository instance. + + * "make DEVELOPER=1 DEVOPTS=pedantic" allows developers to compile + with -pedantic option, which may catch more problematic program + constructs and potential bugs. + + * Preparatory code to later add json output for telemetry data has + been added. + + * Update the way we use Coccinelle to find out-of-style code that + need to be modernised. + + * It is too easy to misuse system API functions such as strcat(); + these selected functions are now forbidden in this codebase and + will cause a compilation failure. + + * Add a script (in contrib/) to help users of VSCode work better with + our codebase. + + * The Travis CI scripts were taught to ship back the test data from + failed tests. + (merge aea8879a6a sg/travis-retrieve-trash-upon-failure later to maint). + Fixes since v2.18 ----------------- @@ -223,6 +322,83 @@ Fixes since v2.18 * core.commentchar is now honored when preparing the list of commits to replay in "rebase -i". + * "git pull --rebase" on a corrupt HEAD caused a segfault. In + general we substitute an empty tree object when running the in-core + equivalent of the diff-index command, and the codepath has been + corrected to do so as well to fix this issue. + (merge 3506dc9445 jk/has-uncommitted-changes-fix later to maint). + + * httpd tests saw occasional breakage due to the way its access log + gets inspected by the tests, which has been updated to make them + less flaky. + (merge e8b3b2e275 sg/httpd-test-unflake later to maint). + + * Tests to cover more D/F conflict cases have been added for + merge-recursive. + + * "git gc --auto" opens file descriptors for the packfiles before + spawning "git repack/prune", which would upset Windows that does + not want a process to work on a file that is open by another + process. The issue has been worked around. + (merge 12e73a3ce4 kg/gc-auto-windows-workaround later to maint). + + * The recursive merge strategy did not properly ensure there was no + change between HEAD and the index before performing its operation, + which has been corrected. + (merge 55f39cf755 en/dirty-merge-fixes later to maint). + + * "git rebase" started exporting GIT_DIR environment variable and + exposing it to hook scripts when part of it got rewritten in C. + Instead of matching the old scripted Porcelains' behaviour, + compensate by also exporting GIT_WORK_TREE environment as well to + lessen the damage. This can harm existing hooks that want to + operate on different repository, but the current behaviour is + already broken for them anyway. + (merge ab5e67d751 bc/sequencer-export-work-tree-as-well later to maint). + + * "git send-email" when using in a batched mode that limits the + number of messages sent in a single SMTP session lost the contents + of the variable used to choose between tls/ssl, unable to send the + second and later batches, which has been fixed. + (merge 636f3d7ac5 jm/send-email-tls-auth-on-batch later to maint). + + * The lazy clone support had a few places where missing but promised + objects were not correctly tolerated, which have been fixed. + + * One of the "diff --color-moved" mode "dimmed_zebra" that was named + in an unusual way has been deprecated and replaced by + "dimmed-zebra". + (merge e3f2f5f9cd es/diff-color-moved-fix later to maint). + + * The wire-protocol v2 relies on the client to send "ref prefixes" to + limit the bandwidth spent on the initial ref advertisement. "git + clone" when learned to speak v2 forgot to do so, which has been + corrected. + (merge 402c47d939 bw/clone-ref-prefixes later to maint). + + * "git diff --histogram" had a bad memory usage pattern, which has + been rearranged to reduce the peak usage. + (merge 79cb2ebb92 sb/histogram-less-memory later to maint). + + * Code clean-up to use size_t/ssize_t when they are the right type. + (merge 7726d360b5 jk/size-t later to maint). + + * The wire-protocol v2 relies on the client to send "ref prefixes" to + limit the bandwidth spent on the initial ref advertisement. "git + fetch $remote branch:branch" that asks tags that point into the + history leading to the "branch" automatically followed sent to + narrow prefix and broke the tag following, which has been fixed. + (merge 2b554353a5 jt/tag-following-with-proto-v2-fix later to maint). + + * When the sparse checkout feature is in use, "git cherry-pick" and + other mergy operations lost the skip_worktree bit when a path that + is excluded from checkout requires content level merge, which is + resolved as the same as the HEAD version, without materializing the + merge result in the working tree, which made the path appear as + deleted. This has been corrected by preserving the skip_worktree + bit (and not materializing the file in the working tree). + (merge 2b75fb601c en/merge-recursive-skip-fix later to maint). + * Code cleanup, docfix, build fix, etc. (merge aee9be2ebe sg/update-ref-stdin-cleanup later to maint). (merge 037714252f jc/clean-after-sanity-tests later to maint). @@ -237,3 +413,11 @@ Fixes since v2.18 (merge 5cf8e06474 js/enhanced-version-info later to maint). (merge 6aaded5509 tb/config-default later to maint). (merge 022d2ac1f3 sb/blame-color later to maint). + (merge 5a06a20e0c bp/test-drop-caches-for-windows later to maint). + (merge dd61cc1c2e jk/ui-color-always-to-auto later to maint). + (merge 1e83b9bfdd sb/trailers-docfix later to maint). + (merge ab29f1b329 sg/fast-import-dump-refs-on-checkpoint-fix later to maint). + (merge 6a8ad880f0 jn/subtree-test-fixes later to maint). + (merge ffbd51cc60 nd/pack-objects-threading-doc later to maint). + (merge e9dac7be60 es/mw-to-git-chain-fix later to maint). + (merge fe583c6c7a rs/remote-mv-leakfix later to maint). diff --git a/Documentation/config.txt b/Documentation/config.txt index 43b2de7b5f..b568bad15d 100644 --- a/Documentation/config.txt +++ b/Documentation/config.txt @@ -344,6 +344,16 @@ advice.*:: Advice shown when you used linkgit:git-checkout[1] to move to the detach HEAD state, to instruct how to create a local branch after the fact. + checkoutAmbiguousRemoteBranchName:: + Advice shown when the argument to + linkgit:git-checkout[1] ambiguously resolves to a + remote tracking branch on more than one remote in + situations where an unambiguous argument would have + otherwise caused a remote-tracking branch to be + checked out. See the `checkout.defaultRemote` + configuration variable for how to set a given remote + to used by default in some situations where this + advice would be printed. amWorkDir:: Advice that shows the location of the patch file when linkgit:git-am[1] fails to apply it. @@ -907,9 +917,17 @@ core.notesRef:: This setting defaults to "refs/notes/commits", and it can be overridden by the `GIT_NOTES_REF` environment variable. See linkgit:git-notes[1]. -core.commitGraph:: - Enable git commit graph feature. Allows reading from the - commit-graph file. +gc.commitGraph:: + If true, then gc will rewrite the commit-graph file when + linkgit:git-gc[1] is run. When using linkgit:git-gc[1] + '--auto' the commit-graph will be updated if housekeeping is + required. Default is false. See linkgit:git-commit-graph[1] + for details. + +core.useReplaceRefs:: + If set to `false`, behave as if the `--no-replace-objects` + option was given on the command line. See linkgit:git[1] and + linkgit:git-replace[1] for more information. core.sparseCheckout:: Enable "sparse checkout" feature. See section "Sparse checkout" in @@ -1101,6 +1119,22 @@ browser.<tool>.path:: browse HTML help (see `-w` option in linkgit:git-help[1]) or a working repository in gitweb (see linkgit:git-instaweb[1]). +checkout.defaultRemote:: + When you run 'git checkout <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>' + 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-checkout[1] when 'git checkout +<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. + clean.requireForce:: A boolean to make git-clean do nothing unless given -f, -i or -n. Defaults to true. @@ -1149,6 +1183,11 @@ diff.colorMoved:: true the default color mode will be used. When set to false, moved lines are not colored. +diff.colorMovedWS:: + When moved lines are colored using e.g. the `diff.colorMoved` setting, + this option controls the `<mode>` how spaces are treated + for details of valid modes see '--color-moved-ws' in linkgit:git-diff[1]. + color.diff.<slot>:: Use customized color for diff colorization. `<slot>` specifies which part of the patch to use the specified color, and is one @@ -1463,10 +1502,19 @@ fetch.recurseSubmodules:: fetch.fsckObjects:: If it is set to true, git-fetch-pack will check all fetched - objects. It will abort in the case of a malformed object or a - broken link. The result of an abort are only dangling objects. - Defaults to false. If not set, the value of `transfer.fsckObjects` - is used instead. + objects. See `transfer.fsckObjects` for what's + checked. Defaults to false. If not set, the value of + `transfer.fsckObjects` is used instead. + +fetch.fsck.<msg-id>:: + Acts like `fsck.<msg-id>`, but is used by + linkgit:git-fetch-pack[1] instead of linkgit:git-fsck[1]. See + the `fsck.<msg-id>` documentation for details. + +fetch.fsck.skipList:: + Acts like `fsck.skipList`, but is used by + linkgit:git-fetch-pack[1] instead of linkgit:git-fsck[1]. See + the `fsck.skipList` documentation for details. fetch.unpackLimit:: If the number of objects fetched over the Git native @@ -1497,6 +1545,18 @@ fetch.output:: `full` and `compact`. Default value is `full`. See section OUTPUT in linkgit:git-fetch[1] for detail. +fetch.negotiationAlgorithm:: + Control how information about the commits in the local repository is + sent when negotiating the contents of the packfile to be sent by the + server. Set to "skipping" to use an algorithm that skips commits in an + effort to converge faster, but may result in a larger-than-necessary + packfile; The default is "default" which instructs Git to use the default algorithm + that never skips commits (unless the server has acknowledged it or one + of its descendants). + Unknown values will cause 'git fetch' to error out. ++ +See also the `--negotiation-tip` option for linkgit:git-fetch[1]. + format.attach:: Enable multipart/mixed attachments as the default for 'format-patch'. The value can also be a double quoted string @@ -1596,15 +1656,42 @@ filter.<driver>.smudge:: linkgit:gitattributes[5] for details. fsck.<msg-id>:: - Allows overriding the message type (error, warn or ignore) of a - specific message ID such as `missingEmail`. -+ -For convenience, fsck prefixes the error/warning with the message ID, -e.g. "missingEmail: invalid author/committer line - missing email" means -that setting `fsck.missingEmail = ignore` will hide that issue. -+ -This feature is intended to support working with legacy repositories -which cannot be repaired without disruptive changes. + During fsck git may find issues with legacy data which + wouldn't be generated by current versions of git, and which + wouldn't be sent over the wire if `transfer.fsckObjects` was + set. This feature is intended to support working with legacy + repositories containing such data. ++ +Setting `fsck.<msg-id>` will be picked up by linkgit:git-fsck[1], but +to accept pushes of such data set `receive.fsck.<msg-id>` instead, or +to clone or fetch it set `fetch.fsck.<msg-id>`. ++ +The rest of the documentation discusses `fsck.*` for brevity, but the +same applies for the corresponding `receive.fsck.*` and +`fetch.<msg-id>.*`. variables. ++ +Unlike variables like `color.ui` and `core.editor` the +`receive.fsck.<msg-id>` and `fetch.fsck.<msg-id>` variables will not +fall back on the `fsck.<msg-id>` configuration if they aren't set. To +uniformly configure the same fsck settings in different circumstances +all three of them they must all set to the same values. ++ +When `fsck.<msg-id>` is set, errors can be switched to warnings and +vice versa by configuring the `fsck.<msg-id>` setting where the +`<msg-id>` is the fsck message ID and the value is one of `error`, +`warn` or `ignore`. For convenience, fsck prefixes the error/warning +with the message ID, e.g. "missingEmail: invalid author/committer line +- missing email" means that setting `fsck.missingEmail = ignore` will +hide that issue. ++ +In general, it is better to enumerate existing objects with problems +with `fsck.skipList`, instead of listing the kind of breakages these +problematic objects share to be ignored, as doing the latter will +allow new instances of the same breakages go unnoticed. ++ +Setting an unknown `fsck.<msg-id>` value will cause fsck to die, but +doing the same for `receive.fsck.<msg-id>` and `fetch.fsck.<msg-id>` +will only cause git to warn. fsck.skipList:: The path to a sorted list of object names (i.e. one SHA-1 per @@ -1613,6 +1700,15 @@ fsck.skipList:: should be accepted despite early commits containing errors that can be safely ignored such as invalid committer email addresses. Note: corrupt objects cannot be skipped with this setting. ++ +Like `fsck.<msg-id>` this variable has corresponding +`receive.fsck.skipList` and `fetch.fsck.skipList` variants. ++ +Unlike variables like `color.ui` and `core.editor` the +`receive.fsck.skipList` and `fetch.fsck.skipList` variables will not +fall back on the `fsck.skipList` configuration if they aren't set. To +uniformly configure the same fsck settings in different circumstances +all three of them they must all set to the same values. gc.aggressiveDepth:: The depth parameter used in the delta compression @@ -1836,6 +1932,16 @@ gpg.program:: signed, and the program is expected to send the result to its standard output. +gpg.format:: + Specifies which key format to use when signing with `--gpg-sign`. + Default is "openpgp" and another possible value is "x509". + +gpg.<format>.program:: + Use this to customize the program used for the signing format you + chose. (see `gpg.program` and `gpg.format`) `gpg.program` can still + be used as a legacy synonym for `gpg.openpgp.program`. The default + value for `gpg.x509.program` is "gpgsm". + gui.commitMsgWidth:: Defines how wide the commit message window is in the linkgit:git-gui[1]. "75" is the default. @@ -2889,32 +2995,21 @@ receive.certNonceSlop:: receive.fsckObjects:: If it is set to true, git-receive-pack will check all received - objects. It will abort in the case of a malformed object or a - broken link. The result of an abort are only dangling objects. - Defaults to false. If not set, the value of `transfer.fsckObjects` - is used instead. + objects. See `transfer.fsckObjects` for what's checked. + Defaults to false. If not set, the value of + `transfer.fsckObjects` is used instead. receive.fsck.<msg-id>:: - When `receive.fsckObjects` is set to true, errors can be switched - to warnings and vice versa by configuring the `receive.fsck.<msg-id>` - setting where the `<msg-id>` is the fsck message ID and the value - is one of `error`, `warn` or `ignore`. For convenience, fsck prefixes - the error/warning with the message ID, e.g. "missingEmail: invalid - author/committer line - missing email" means that setting - `receive.fsck.missingEmail = ignore` will hide that issue. -+ -This feature is intended to support working with legacy repositories -which would not pass pushing when `receive.fsckObjects = true`, allowing -the host to accept repositories with certain known issues but still catch -other issues. + Acts like `fsck.<msg-id>`, but is used by + linkgit:git-receive-pack[1] instead of + linkgit:git-fsck[1]. See the `fsck.<msg-id>` documentation for + details. receive.fsck.skipList:: - The path to a sorted list of object names (i.e. one SHA-1 per - line) that are known to be broken in a non-fatal way and should - be ignored. This feature is useful when an established project - should be accepted despite early commits containing errors that - can be safely ignored such as invalid committer email addresses. - Note: corrupt objects cannot be skipped with this setting. + Acts like `fsck.skipList`, but is used by + linkgit:git-receive-pack[1] instead of + linkgit:git-fsck[1]. See the `fsck.skipList` documentation for + details. receive.keepAlive:: After receiving the pack from the client, `receive-pack` may @@ -3389,6 +3484,40 @@ transfer.fsckObjects:: When `fetch.fsckObjects` or `receive.fsckObjects` are not set, the value of this variable is used instead. Defaults to false. ++ +When set, the fetch or receive will abort in the case of a malformed +object or a link to a nonexistent object. In addition, various other +issues are checked for, including legacy issues (see `fsck.<msg-id>`), +and potential security issues like the existence of a `.GIT` directory +or a malicious `.gitmodules` file (see the release notes for v2.2.1 +and v2.17.1 for details). Other sanity and security checks may be +added in future releases. ++ +On the receiving side, failing fsckObjects will make those objects +unreachable, see "QUARANTINE ENVIRONMENT" in +linkgit:git-receive-pack[1]. On the fetch side, malformed objects will +instead be left unreferenced in the repository. ++ +Due to the non-quarantine nature of the `fetch.fsckObjects` +implementation it can not be relied upon to leave the object store +clean like `receive.fsckObjects` can. ++ +As objects are unpacked they're written to the object store, so there +can be cases where malicious objects get introduced even though the +"fetch" failed, only to have a subsequent "fetch" succeed because only +new incoming objects are checked, not those that have already been +written to the object store. That difference in behavior should not be +relied upon. In the future, such objects may be quarantined for +"fetch" as well. ++ +For now, the paranoid need to find some way to emulate the quarantine +environment if they'd like the same protection as "push". E.g. in the +case of an internal mirror do the mirroring in two steps, one to fetch +the untrusted objects, and then do a second "push" (which will use the +quarantine) to another internal repo, and have internal clients +consume this pushed-to repository, or embargo internal fetches and +only allow them once a full "fsck" has run (and no new fetches have +happened in the meantime). transfer.hideRefs:: String(s) `receive-pack` and `upload-pack` use to decide which diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt index 41064909ee..0378cd574e 100644 --- a/Documentation/diff-options.txt +++ b/Documentation/diff-options.txt @@ -276,16 +276,46 @@ plain:: that are added somewhere else in the diff. This mode picks up any moved line, but it is not very useful in a review to determine if a block of code was moved without permutation. -zebra:: +blocks:: Blocks of moved text of at least 20 alphanumeric characters are detected greedily. The detected blocks are - painted using either the 'color.diff.{old,new}Moved' color or + painted using either the 'color.diff.{old,new}Moved' color. + Adjacent blocks cannot be told apart. +zebra:: + Blocks of moved text are detected as in 'blocks' mode. The blocks + are painted using either the 'color.diff.{old,new}Moved' color or 'color.diff.{old,new}MovedAlternative'. The change between the two colors indicates that a new block was detected. -dimmed_zebra:: +dimmed-zebra:: Similar to 'zebra', but additional dimming of uninteresting parts of moved code is performed. The bordering lines of two adjacent blocks are considered interesting, the rest is uninteresting. + `dimmed_zebra` is a deprecated synonym. +-- + +--color-moved-ws=<modes>:: + This configures how white spaces are ignored when performing the + move detection for `--color-moved`. +ifdef::git-diff[] + It can be set by the `diff.colorMovedWS` configuration setting. +endif::git-diff[] + These modes can be given as a comma separated list: ++ +-- +ignore-space-at-eol:: + Ignore changes in whitespace at EOL. +ignore-space-change:: + Ignore changes in amount of whitespace. This ignores whitespace + at line end, and considers all other sequences of one or + more whitespace characters to be equivalent. +ignore-all-space:: + Ignore whitespace when comparing lines. This ignores differences + even if one line has whitespace where the other line has none. +allow-indentation-change:: + Initially ignore any white spaces in the move detection, then + group the moved code blocks only into a block if the change in + whitespace is the same per line. This is incompatible with the + other modes. -- --word-diff[=<mode>]:: diff --git a/Documentation/fetch-options.txt b/Documentation/fetch-options.txt index 97d3217df9..8bc36af4b1 100644 --- a/Documentation/fetch-options.txt +++ b/Documentation/fetch-options.txt @@ -42,6 +42,25 @@ the current repository has the same history as the source repository. .git/shallow. This option updates .git/shallow and accept such refs. +--negotiation-tip=<commit|glob>:: + By default, Git will report, to the server, commits reachable + from all local refs to find common commits in an attempt to + reduce the size of the to-be-received packfile. If specified, + Git will only report commits reachable from the given tips. + This is useful to speed up fetches when the user knows which + local ref is likely to have commits in common with the + upstream ref being fetched. ++ +This option may be specified more than once; if so, Git will report +commits reachable from any of the given commits. ++ +The argument to this option may be a glob on ref names, a ref, or the (possibly +abbreviated) SHA-1 of a commit. Specifying a glob is equivalent to specifying +this option multiple times, one for each matching ref name. ++ +See also the `fetch.negotiationAlgorithm` configuration variable +documented in linkgit:git-config[1]. + ifndef::git-pull[] --dry-run:: Show what would be done, without making any changes. diff --git a/Documentation/git-checkout.txt b/Documentation/git-checkout.txt index ca5fc9c798..9db02928c4 100644 --- a/Documentation/git-checkout.txt +++ b/Documentation/git-checkout.txt @@ -38,6 +38,15 @@ equivalent to $ git checkout -b <branch> --track <remote>/<branch> ------------ + +If the branch exists in multiple remotes and one of them is named by +the `checkout.defaultRemote` configuration variable, we'll use that +one for the purposes of disambiguation, even if the `<branch>` isn't +unique across all remotes. Set it to +e.g. `checkout.defaultRemote=origin` to always checkout remote +branches from there if `<branch>` is ambiguous but exists on the +'origin' remote. See also `checkout.defaultRemote` in +linkgit:git-config[1]. ++ You could omit <branch>, in which case the command degenerates to "check out the current branch", which is a glorified no-op with rather expensive side-effects to show only the tracking information, diff --git a/Documentation/git-commit-graph.txt b/Documentation/git-commit-graph.txt index 4c97b555cc..dececb79d7 100644 --- a/Documentation/git-commit-graph.txt +++ b/Documentation/git-commit-graph.txt @@ -10,6 +10,7 @@ SYNOPSIS -------- [verse] 'git commit-graph read' [--object-dir <dir>] +'git commit-graph verify' [--object-dir <dir>] 'git commit-graph write' <options> [--object-dir <dir>] @@ -37,12 +38,16 @@ Write a commit graph file based on the commits found in packfiles. + With the `--stdin-packs` option, generate the new commit graph by walking objects only in the specified pack-indexes. (Cannot be combined -with --stdin-commits.) +with `--stdin-commits` or `--reachable`.) + With the `--stdin-commits` option, generate the new commit graph by walking commits starting at the commits specified in stdin as a list of OIDs in hex, one OID per line. (Cannot be combined with ---stdin-packs.) +`--stdin-packs` or `--reachable`.) ++ +With the `--reachable` option, generate the new commit graph by walking +commits starting at all refs. (Cannot be combined with `--stdin-commits` +or `--stdin-packs`.) + With the `--append` option, include all commits that are present in the existing commit-graph file. @@ -52,6 +57,11 @@ existing commit-graph file. Read a graph file given by the commit-graph file and output basic details about the graph file. Used for debugging purposes. +'verify':: + +Read the commit-graph file and verify its contents against the object +database. Used to check for corrupted data. + EXAMPLES -------- diff --git a/Documentation/git-for-each-ref.txt b/Documentation/git-for-each-ref.txt index 085d177d97..901faef1bf 100644 --- a/Documentation/git-for-each-ref.txt +++ b/Documentation/git-for-each-ref.txt @@ -57,7 +57,7 @@ OPTIONS `xx`; for example `%00` interpolates to `\0` (NUL), `%09` to `\t` (TAB) and `%0a` to `\n` (LF). ---color[=<when>]: +--color[=<when>]:: Respect any colors specified in the `--format` option. The `<when>` field must be one of `always`, `never`, or `auto` (if `<when>` is absent, behave as if `always` was given). diff --git a/Documentation/git-fsck.txt b/Documentation/git-fsck.txt index b9f060e3b2..ab9a93fb9b 100644 --- a/Documentation/git-fsck.txt +++ b/Documentation/git-fsck.txt @@ -110,6 +110,9 @@ Any corrupt objects you will have to find in backups or other archives (i.e., you can just remove them and do an 'rsync' with some other site in the hopes that somebody else has the object you have corrupted). +If core.commitGraph is true, the commit-graph file will also be inspected +using 'git commit-graph verify'. See linkgit:git-commit-graph[1]. + Extracted Diagnostics --------------------- diff --git a/Documentation/git-gc.txt b/Documentation/git-gc.txt index 24b2dd44fe..f5bc98ccb3 100644 --- a/Documentation/git-gc.txt +++ b/Documentation/git-gc.txt @@ -136,6 +136,10 @@ The optional configuration variable `gc.packRefs` determines if it within all non-bare repos or it can be set to a boolean value. This defaults to true. +The optional configuration variable `gc.commitGraph` determines if +'git gc' should run 'git commit-graph write'. This can be set to a +boolean value. This defaults to false. + The optional configuration variable `gc.aggressiveWindow` controls how much time is spent optimizing the delta compression of the objects in the repository when the --aggressive option is specified. The larger diff --git a/Documentation/git-grep.txt b/Documentation/git-grep.txt index 0de3493b80..a3049af1a3 100644 --- a/Documentation/git-grep.txt +++ b/Documentation/git-grep.txt @@ -17,7 +17,7 @@ SYNOPSIS [-l | --files-with-matches] [-L | --files-without-match] [(-O | --open-files-in-pager) [<pager>]] [-z | --null] - [-c | --count] [--all-match] [-q | --quiet] + [ -o | --only-matching ] [-c | --count] [--all-match] [-q | --quiet] [--max-depth <depth>] [--color[=<when>] | --no-color] [--break] [--heading] [-p | --show-function] @@ -201,6 +201,11 @@ providing this option will cause it to die. Output \0 instead of the character that normally follows a file name. +-o:: +--only-matching:: + Print only the matched (non-empty) parts of a matching line, with each such + part on a separate output line. + -c:: --count:: Instead of showing every matched line, show the number of diff --git a/Documentation/git-interpret-trailers.txt b/Documentation/git-interpret-trailers.txt index 9111c47a1b..b8fafb1e8b 100644 --- a/Documentation/git-interpret-trailers.txt +++ b/Documentation/git-interpret-trailers.txt @@ -88,7 +88,8 @@ OPTIONS Specify where all new trailers will be added. A setting provided with '--where' overrides all configuration variables and applies to all '--trailer' options until the next occurrence of - '--where' or '--no-where'. + '--where' or '--no-where'. Possible values are `after`, `before`, + `end` or `start`. --if-exists <action>:: --no-if-exists:: @@ -96,7 +97,8 @@ OPTIONS least one trailer with the same <token> in the message. A setting provided with '--if-exists' overrides all configuration variables and applies to all '--trailer' options until the next occurrence of - '--if-exists' or '--no-if-exists'. + '--if-exists' or '--no-if-exists'. Possible actions are `addIfDifferent`, + `addIfDifferentNeighbor`, `add`, `replace` and `doNothing`. --if-missing <action>:: --no-if-missing:: @@ -104,7 +106,8 @@ OPTIONS trailer with the same <token> in the message. A setting provided with '--if-missing' overrides all configuration variables and applies to all '--trailer' options until the next occurrence of - '--if-missing' or '--no-if-missing'. + '--if-missing' or '--no-if-missing'. Possible actions are `doNothing` + or `add`. --only-trailers:: Output only the trailers, not any other parts of the input. diff --git a/Documentation/git-merge.txt b/Documentation/git-merge.txt index 6a5c00e2c2..eb36837f86 100644 --- a/Documentation/git-merge.txt +++ b/Documentation/git-merge.txt @@ -12,7 +12,7 @@ SYNOPSIS 'git merge' [-n] [--stat] [--no-commit] [--squash] [--[no-]edit] [-s <strategy>] [-X <strategy-option>] [-S[<keyid>]] [--[no-]allow-unrelated-histories] - [--[no-]rerere-autoupdate] [-m <msg>] [<commit>...] + [--[no-]rerere-autoupdate] [-m <msg>] [-F <file>] [<commit>...] 'git merge' --abort 'git merge' --continue @@ -75,6 +75,14 @@ The 'git fmt-merge-msg' command can be used to give a good default for automated 'git merge' invocations. The automated message can include the branch description. +-F <file>:: +--file=<file>:: + Read the commit message to be used for the merge commit (in + case one is created). ++ +If `--log` is specified, a shortlog of the commits being merged +will be appended to the specified message. + --[no-]rerere-autoupdate:: Allow the rerere mechanism to update the index with the result of auto-conflict resolution if possible. @@ -122,9 +130,9 @@ merge' may need to update. To avoid recording unrelated changes in the merge commit, 'git pull' and 'git merge' will also abort if there are any changes -registered in the index relative to the `HEAD` commit. (One -exception is when the changed index entries are in the state that -would result from the merge already.) +registered in the index relative to the `HEAD` commit. (Special +narrow exceptions to this rule may exist depending on which merge +strategy is in use, but generally, the index must match HEAD.) If all named commits are already ancestors of `HEAD`, 'git merge' will exit early with the message "Already up to date." diff --git a/Documentation/git-p4.txt b/Documentation/git-p4.txt index f0de3b891b..41780a5aa9 100644 --- a/Documentation/git-p4.txt +++ b/Documentation/git-p4.txt @@ -374,6 +374,14 @@ These options can be used to modify 'git p4 submit' behavior. been submitted. Implies --disable-rebase. Can also be set with git-p4.disableP4Sync. Sync with origin/master still goes ahead if possible. +Hook for submit +~~~~~~~~~~~~~~~ +The `p4-pre-submit` hook is executed if it exists and is executable. +The hook takes no parameters and nothing from standard input. Exiting with +non-zero status from this script prevents `git-p4 submit` from launching. + +One usage scenario is to run unit tests in the hook. + Rebase options ~~~~~~~~~~~~~~ These options can be used to modify 'git p4 rebase' behavior. diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt index a7850415b1..1fbc6ebcde 100644 --- a/Documentation/git-rebase.txt +++ b/Documentation/git-rebase.txt @@ -960,8 +960,8 @@ rescheduled immediately, with a helpful message how to edit the todo list (this typically happens when a `reset` command was inserted into the todo list manually and contains a typo). -The `merge` command will merge the specified revision into whatever is -HEAD at that time. With `-C <original-commit>`, the commit message of +The `merge` command will merge the specified revision(s) into whatever +is HEAD at that time. With `-C <original-commit>`, the commit message of the specified merge commit will be used. When the `-C` is changed to a lower-case `-c`, the message will be opened in an editor after a successful merge so that the user can edit the message. @@ -970,7 +970,8 @@ If a `merge` command fails for any reason other than merge conflicts (i.e. when the merge operation did not even start), it is rescheduled immediately. At this time, the `merge` command will *always* use the `recursive` -merge strategy, with no way to choose a different one. To work around +merge strategy for regular merges, and `octopus` for octopus merges, +strategy, with no way to choose a different one. To work around this, an `exec` command can be used to call `git merge` explicitly, using the fact that the labels are worktree-local refs (the ref `refs/rewritten/onto` would correspond to the label `onto`, for example). diff --git a/Documentation/git-tag.txt b/Documentation/git-tag.txt index 87c4288ffc..92f9c12b87 100644 --- a/Documentation/git-tag.txt +++ b/Documentation/git-tag.txt @@ -115,7 +115,7 @@ options for details. variable if it exists, or lexicographic order otherwise. See linkgit:git-config[1]. ---color[=<when>]: +--color[=<when>]:: Respect any colors specified in the `--format` option. The `<when>` field must be one of `always`, `never`, or `auto` (if `<when>` is absent, behave as if `always` was given). diff --git a/Documentation/git-worktree.txt b/Documentation/git-worktree.txt index afc6576a14..9c26be40f4 100644 --- a/Documentation/git-worktree.txt +++ b/Documentation/git-worktree.txt @@ -60,6 +60,15 @@ with a matching name, treat as equivalent to: $ git worktree add --track -b <branch> <path> <remote>/<branch> ------------ + +If the branch exists in multiple remotes and one of them is named by +the `checkout.defaultRemote` configuration variable, we'll use that +one for the purposes of disambiguation, even if the `<branch>` isn't +unique across all remotes. Set it to +e.g. `checkout.defaultRemote=origin` to always checkout remote +branches from there if `<branch>` is ambiguous but exists on the +'origin' remote. See also `checkout.defaultRemote` in +linkgit:git-config[1]. ++ If `<commit-ish>` is omitted and neither `-b` nor `-B` nor `--detach` used, then, as a convenience, the new worktree is associated with a branch (call it `<branch>`) named after `$(basename <path>)`. If `<branch>` diff --git a/Documentation/githooks.txt b/Documentation/githooks.txt index e3c283a174..959044347e 100644 --- a/Documentation/githooks.txt +++ b/Documentation/githooks.txt @@ -485,6 +485,13 @@ The exit status determines whether git will use the data from the hook to limit its search. On error, it will fall back to verifying all files and folders. +p4-pre-submit +~~~~~~~~~~~~~ + +This hook is invoked by `git-p4 submit`. It takes no parameters and nothing +from standard input. Exiting with non-zero status from this script prevent +`git-p4 submit` from launching. Run `git-p4 submit --help` for details. + GIT --- Part of the linkgit:git[1] suite diff --git a/Documentation/technical/commit-graph.txt b/Documentation/technical/commit-graph.txt index e1a883eb46..c664acbd76 100644 --- a/Documentation/technical/commit-graph.txt +++ b/Documentation/technical/commit-graph.txt @@ -118,9 +118,6 @@ Future Work - The commit graph feature currently does not honor commit grafts. This can be remedied by duplicating or refactoring the current graft logic. -- The 'commit-graph' subcommand does not have a "verify" mode that is - necessary for integration with fsck. - - After computing and storing generation numbers, we must make graph walks aware of generation numbers to gain the performance benefits they enable. This will mostly be accomplished by swapping a commit-date-ordered @@ -130,25 +127,6 @@ Future Work - 'log --topo-order' - 'tag --merged' -- Currently, parse_commit_gently() requires filling in the root tree - object for a commit. This passes through lookup_tree() and consequently - lookup_object(). Also, it calls lookup_commit() when loading the parents. - These method calls check the ODB for object existence, even if the - consumer does not need the content. For example, we do not need the - tree contents when computing merge bases. Now that commit parsing is - removed from the computation time, these lookup operations are the - slowest operations keeping graph walks from being fast. Consider - loading these objects without verifying their existence in the ODB and - only loading them fully when consumers need them. Consider a method - such as "ensure_tree_loaded(commit)" that fully loads a tree before - using commit->tree. - -- The current design uses the 'commit-graph' subcommand to generate the graph. - When this feature stabilizes enough to recommend to most users, we should - add automatic graph writes to common operations that create many commits. - For example, one could compute a graph on 'clone', 'fetch', or 'repack' - commands. - - A server could provide a commit graph file as part of the network protocol to avoid extra calculations by clients. This feature is only of benefit if the user is willing to trust the file, because verifying the file is correct diff --git a/Documentation/technical/http-protocol.txt b/Documentation/technical/http-protocol.txt index 64f49d0bbb..9c5b6f0fac 100644 --- a/Documentation/technical/http-protocol.txt +++ b/Documentation/technical/http-protocol.txt @@ -338,11 +338,11 @@ server advertises capability `allow-tip-sha1-in-want` or request_end request_end = "0000" / "done" - want_list = PKT-LINE(want NUL cap_list LF) + want_list = PKT-LINE(want SP cap_list LF) *(want_pkt) want_pkt = PKT-LINE(want LF) want = "want" SP id - cap_list = *(SP capability) SP + cap_list = capability *(SP capability) have_list = *PKT-LINE("have" SP id LF) diff --git a/Documentation/technical/pack-protocol.txt b/Documentation/technical/pack-protocol.txt index 508a344cf1..6ac774d5f6 100644 --- a/Documentation/technical/pack-protocol.txt +++ b/Documentation/technical/pack-protocol.txt @@ -50,7 +50,8 @@ Each Extra Parameter takes the form of `<key>=<value>` or `<key>`. Servers that receive any such Extra Parameters MUST ignore all unrecognized keys. Currently, the only Extra Parameter recognized is -"version=1". +"version" with a value of '1' or '2'. See protocol-v2.txt for more +information on protocol version 2. Git Transport ------------- |