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2020-08-19Merge branch 'jh/mingw-unlink'Libravatar Junio C Hamano1-0/+3
"unlink" emulation on MinGW has been optimized. * jh/mingw-unlink: mingw: improve performance of mingw_unlink()
2020-08-19Merge branch 'ds/sha256-leftover-bits'Libravatar Junio C Hamano10-21/+146
midx and commit-graph files now use the byte defined in their file format specification for identifying the hash function used for object names. * ds/sha256-leftover-bits: multi-pack-index: use hash version byte commit-graph: use the "hash version" byte t/README: document GIT_TEST_DEFAULT_HASH
2020-08-19Merge branch 'ma/sha-256-docs'Libravatar Junio C Hamano4-23/+30
Further update of docs to adjust to the recent SHA-256 work. * ma/sha-256-docs: shallow.txt: document SHA-256 shallow format protocol-capabilities.txt: clarify "allow-x-sha1-in-want" re SHA-256 index-format.txt: document SHA-256 index format http-protocol.txt: document SHA-256 "want"/"have" format
2020-08-19Merge branch 'jc/object-names-are-not-sha-1'Libravatar Junio C Hamano5-5/+5
A few end-user facing messages have been updated to be hash-algorithm agnostic. * jc/object-names-are-not-sha-1: messages: avoid SHA-1 in end-user facing messages
2020-08-19Merge branch 'bc/sha-256-doc-updates'Libravatar Junio C Hamano2-16/+22
Further update of docs to adjust to the recent SHA-256 work. * bc/sha-256-doc-updates: docs: fix step in transition plan docs: document SHA-256 pack and indices
2020-08-19Merge branch 'pb/set-url-docfix'Libravatar Junio C Hamano1-1/+1
Doc fix. * pb/set-url-docfix: fetch, pull doc: correct description of '--set-upstream'
2020-08-19Merge branch 'pb/userdiff-fortran-update'Libravatar Junio C Hamano11-1/+100
The regexp to identify the function boundary for FORTRAN programs has been updated. * pb/userdiff-fortran-update: userdiff: improve Fortran xfuncname regex userdiff: add tests for Fortran xfuncname regex
2020-08-19Merge branch 'jb/commit-graph-doc-fix'Libravatar Junio C Hamano1-3/+3
Docfix. * jb/commit-graph-doc-fix: docs: commit-graph: fix some whitespace in the diagram
2020-08-19Merge branch 'jk/blame-coalesce-fix'Libravatar Junio C Hamano2-9/+20
When given more than one target line ranges, "git blame -La,b -Lc,d" was over-eager to coalesce groups of original lines and showed incorrect results, which has been corrected. * jk/blame-coalesce-fix: blame: only coalesce lines that are adjacent in result t8003: factor setup out of coalesce test t8003: check output of coalesced blame
2020-08-19Merge branch 'ak/sequencer-fix-find-uniq-abbrev'Libravatar Junio C Hamano2-2/+9
Ring buffer with size 4 used for bin-hex translation resulted in a wrong object name in the sequencer's todo output, which has been corrected. * ak/sequencer-fix-find-uniq-abbrev: rebase -i: fix possibly wrong onto hash in todo
2020-08-19Merge branch 'en/sequencer-merge-labels'Libravatar Junio C Hamano3-12/+12
The commit labels used to explain each side of conflicted hunks placed by the sequencer machinery have been made more readable by humans. * en/sequencer-merge-labels: sequencer: avoid garbled merge machinery messages due to commit labels
2020-08-19Merge branch 'rs/preserve-merges-unused-code-removal'Libravatar Junio C Hamano1-10/+0
Code clean-up. * rs/preserve-merges-unused-code-removal: rebase: remove unused function reschedule_last_action
2020-08-19Merge branch 'rs/upload-pack-sigchain-fix'Libravatar Junio C Hamano1-1/+0
Code clean-up. * rs/upload-pack-sigchain-fix: upload-pack: remove superfluous sigchain_pop() call
2020-08-19Merge branch 'rp/ita-diff-modefix'Libravatar Junio C Hamano1-1/+2
"git diff [<tree-ish>] $path" for a $path that is marked with i-t-a bit was not showing the mode bits from the working tree. * rp/ita-diff-modefix: diff-lib: use worktree mode in diffs from i-t-a entries
2020-08-19Merge branch 'en/merge-tests'Libravatar Junio C Hamano35-48/+71
Updates to "git merge" tests, in preparation for a new merge strategy backend. * en/merge-tests: t6425: be more flexible with rename/delete conflict messages t642[23]: be more flexible for add/add conflicts involving pair renames t6422, t6426: be more flexible for add/add conflicts involving renames t6423: add an explanation about why one of the tests does not pass t6416, t6423: clarify some comments and fix some typos t6422: fix multiple errors with the mod6 test expectations t6423: fix test setup for a couple tests t6416, t6422: fix incorrect untracked file count t6422: fix bad check against missing file t6418: tighten delete/normalize conflict testcase Collect merge-related tests to t64xx
2020-08-17Eighth batchLibravatar Junio C Hamano1-0/+36
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-17Merge branch 'so/log-diff-merges-opt'Libravatar Junio C Hamano5-2/+171
Earlier, to countermand the implicit "-m" option when the "--first-parent" option is used with "git log", we added the "--[no-]diff-merges" option in the jk/log-fp-implies-m topic. To leave the door open to allow the "--diff-merges" option to take values that instructs how patches for merge commits should be computed (e.g. "cc"? "-p against first parent?"), redefine "--diff-merges" to take non-optional value, and implement "off" that means the same thing as "--no-diff-merges". * so/log-diff-merges-opt: t/t4013: add test for --diff-merges=off doc/git-log: describe --diff-merges=off revision: change "--diff-merges" option to require parameter
2020-08-17Merge branch 'jk/log-fp-implies-m'Libravatar Junio C Hamano9-55/+158
"git log --first-parent -p" showed patches only for single-parent commits on the first-parent chain; the "--first-parent" option has been made to imply "-m". Use "--no-diff-merges" to restore the previous behaviour to omit patches for merge commits. * jk/log-fp-implies-m: doc/git-log: clarify handling of merge commit diffs doc/git-log: move "-t" into diff-options list doc/git-log: drop "-r" diff option doc/git-log: move "Diff Formatting" from rev-list-options log: enable "-m" automatically with "--first-parent" revision: add "--no-diff-merges" option to counteract "-m" log: drop "--cc implies -m" logic
2020-08-17Merge branch 'ma/stop-progress-null-fix'Libravatar Junio C Hamano1-2/+10
NULL dereference fix. * ma/stop-progress-null-fix: progress: don't dereference before checking for NULL
2020-08-17Merge branch 'es/test-cmp-typocatcher'Libravatar Junio C Hamano1-2/+14
Test framework update. * es/test-cmp-typocatcher: test_cmp: diagnose incorrect arguments
2020-08-17Merge branch 'rp/apply-cached-with-i-t-a'Libravatar Junio C Hamano2-4/+77
Recent versions of "git diff-files" shows a diff between the index and the working tree for "intent-to-add" paths as a "new file" patch; "git apply --cached" should be able to take "git diff-files" and should act as an equivalent to "git add" for the path, but the command failed to do so for such a path. * rp/apply-cached-with-i-t-a: t4140: test apply with i-t-a paths apply: make i-t-a entries never match worktree apply: allow "new file" patches on i-t-a entries
2020-08-17Merge branch 'al/bisect-first-parent'Libravatar Junio C Hamano11-103/+195
"git bisect" learns the "--first-parent" option to find the first breakage along the first-parent chain. * al/bisect-first-parent: bisect: combine args passed to find_bisection() bisect: introduce first-parent flag cmd_bisect__helper: defer parsing no-checkout flag rev-list: allow bisect and first-parent flags t6030: modernize "git bisect run" tests
2020-08-17Merge branch 'jk/sideband-error-l10n'Libravatar Junio C Hamano1-1/+1
Mark error message for i18n. * jk/sideband-error-l10n: sideband: mark "remote error:" prefix for translation
2020-08-17Merge branch 'jc/noop-with-static-inline'Libravatar Junio C Hamano1-5/+15
A no-op replacement function implemented as a C preprocessor macro does not perform as good a job as one implemented as a "static inline" function in catching errors in parameters; replace the former with the latter in <git-compat-util.h> header. * jc/noop-with-static-inline: compat-util: type-check parameters of no-op replacement functions
2020-08-17Merge branch 'pd/mergetool-nvimdiff'Libravatar Junio C Hamano9-18/+51
The existing backends for "git mergetool" based on variants of vim have been refactored and then support for "nvim" has been added. * pd/mergetool-nvimdiff: mergetools: add support for nvimdiff (neovim) family mergetool--lib: improve support for vimdiff-style tool variants
2020-08-17Merge branch 'hn/reftable-prep-part-2'Libravatar Junio C Hamano4-139/+36
Further preliminary change to refs API. * hn/reftable-prep-part-2: Make HEAD a PSEUDOREF rather than PER_WORKTREE. Modify pseudo refs through ref backend storage t1400: use git rev-parse for testing PSEUDOREF existence
2020-08-17Merge branch 'dd/send-email-config'Libravatar Junio C Hamano4-0/+68
Stop when "sendmail.*" configuration variables are defined, which could be a mistaken attempt to define "sendemail.*" variables. * dd/send-email-config: git-send-email: die if sendmail.* config is set
2020-08-17Merge branch 'ps/ref-transaction-hook'Libravatar Junio C Hamano2-1/+28
The logic to find the ref transaction hook script attempted to cache the path to the found hook without realizing that it needed to keep a copied value, as the API it used returned a transitory buffer space. This has been corrected. * ps/ref-transaction-hook: t1416: avoid hard-coded sha1 ids refs: fix interleaving hook calls with reference-transaction hook
2020-08-17multi-pack-index: use hash version byteLibravatar Derrick Stolee4-13/+80
Similar to the commit-graph format, the multi-pack-index format has a byte in the header intended to track the hash version used to write the file. This allows one to interpret the hash length without having the context of the repository config specifying the hash length. This was not modified as part of the SHA-256 work because the hash length was automatically up-shifted due to that config. Since we have this byte available, we can make the file formats more obviously incompatible instead of relying on other context from the repository. Add a new oid_version() method in midx.c similar to the one in commit-graph.c. This is specifically made separate from that implementation to avoid artificially linking the formats. The test impact requires a few more things than the corresponding change in the commit-graph format. Specifically, 'test-tool read-midx' was not writing anything about this header value to output. Since the value available in 'struct multi_pack_index' is hash_len instead of a version value, we output "20" or "32" instead of "1" or "2". Since we want a user to not have their Git commands fail if their multi-pack-index has the incorrect hash version compared to the repository's hash version, we relax the die() to an error() in load_multi_pack_index(). This has some effect on 'git multi-pack-index verify' as we need to check that a failed parse of a file that exists is actually a verify error. For that test that checks the hash version matches, we change the corrupted byte from "2" to "3" to ensure the test fails for both hash algorithms. Helped-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Reviewed-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-17commit-graph: use the "hash version" byteLibravatar Derrick Stolee5-8/+62
The commit-graph format reserved a byte among the header of the file to store a "hash version". During the SHA-256 work, this was not modified because file formats are not necessarily intended to work across hash versions. If a repository has SHA-256 as its hash algorithm, it automatically up-shifts the lengths of object names in all necessary formats. However, since we have this byte available for adjusting the version, we can make the file formats more obviously incompatible instead of relying on other context from the repository. Update the oid_version() method in commit-graph.c to add a new value, 2, for sha-256. This automatically writes the new value in a SHA-256 repository _and_ verifies the value is correct. This is a breaking change relative to the current 'master' branch since 092b677 (Merge branch 'bc/sha-256-cvs-svn-updates', 2020-08-13) but it is not breaking relative to any released version of Git. The test impact is relatively minor: the output of 'test-tool read-graph' lists the header information, so those instances of '1' need to be replaced with a variable determined by GIT_TEST_DEFAULT_HASH. A more careful test is added that specifically creates a repository of each type then swaps the commit-graph files. The important value here is that the "git log" command succeeds while writing a message to stderr. Helped-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Reviewed-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-17t/README: document GIT_TEST_DEFAULT_HASHLibravatar Derrick Stolee1-0/+4
Helped-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Derrick Stolee <dstolee@microsoft.com> Reviewed-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-17mingw: improve performance of mingw_unlink()Libravatar Jeff Hostetler1-0/+3
Update mingw_unlink() to first try to delete the file with existing permissions before trying to force it. Windows throws an error when trying to delete a read-only file. The mingw_unlink() compatibility wrapper always tries to _wchmod(666) the file before calling _wunlink() to avoid that error. However, since most files in the worktree are already writable, this is usually wasted effort. Update mingw_unlink() to just call DeleteFileW() directly and if that succeeds return. If that fails, fall back into the existing code path to update the permissions and use _wunlink() to get the existing error code mapping. Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-17shallow.txt: document SHA-256 shallow formatLibravatar Martin Ågren1-1/+1
Similar to recent commits, document that we list object names rather than SHA-1s. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-17protocol-capabilities.txt: clarify "allow-x-sha1-in-want" re SHA-256Libravatar Martin Ågren1-4/+8
Two of our capabilities contain "sha1" in their names, but that's historical. Clarify that object names are still to be given using whatever object format has been negotiated using the "object-format" capability. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-17index-format.txt: document SHA-256 index formatLibravatar Martin Ågren1-16/+18
Document that in SHA-1 repositories, we use SHA-1 and in SHA-256 repositories, we use SHA-256, then replace all other uses of "SHA-1" with something more neutral. Avoid referring to "160-bit" hash values. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-17http-protocol.txt: document SHA-256 "want"/"have" formatLibravatar Martin Ågren1-2/+3
Document that rather than always naming objects using SHA-1, we should use whatever has been negotiated using the object-format capability. Signed-off-by: Martin Ågren <martin.agren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-14sequencer: avoid garbled merge machinery messages due to commit labelsLibravatar Elijah Newren3-12/+12
sequencer's get_message() exists to provide good labels on conflict hunks; see commits d68565402a ("revert: clarify label on conflict hunks", 2010-03-20) bf975d379d ("cherry-pick, revert: add a label for ancestor", 2010-03-20) 043a4492b3 ("sequencer: factor code out of revert builtin", 2012-01-11). for background on this function. These labels are of the form <commitID>... <commit summary> or parent of <commitID>... <commit summary> These labels are then passed as branch names to the merge machinery. However, these labels, as formatted, often also serve to confuse. For example, if we have a rename involved in a content merge, then it results in text such as the following: <<<<<<<< HEAD:foo.c int j; ======== int counter; >>>>>>>> b01dface... Removed unnecessary stuff:bar.c Or in various conflict messages, it can make it very difficult to read: CONFLICT (rename/delete): foo.c deleted in b01dface... Removed unnecessary stuff and renamed in HEAD. Version HEAD of foo.c left in tree. CONFLICT (file location): dir1/foo.c added in b01dface... Removed unnecessary stuff inside a directory that was renamed in HEAD, suggesting it should perhaps be moved to dir2/foo.c. Make a minor change to remove the ellipses and add parentheses around the commit summary; this makes all three examples much easier to read: <<<<<<<< HEAD:foo.c int j; ======== int counter; >>>>>>>> b01dface (Removed unnecessary stuff):bar.c CONFLICT (rename/delete): foo.c deleted in b01dface (Removed unnecessary stuff) and renamed in HEAD. Version HEAD of foo.c left in tree. CONFLICT (file location): dir1/foo.c added in b01dface (Removed unnecessary stuff) inside a directory that was renamed in HEAD, suggesting it should perhaps be moved to dir2/foo.c. Signed-off-by: Elijah Newren <newren@gmail.com> Reviewed-by: Taylor Blau <me@ttaylorr.com> Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-14messages: avoid SHA-1 in end-user facing messagesLibravatar Junio C Hamano5-5/+5
There are still a handful mentions of SHA-1 when we meant the (hexadecimal) object names in end-user facing messages. Rewrite them. I was hoping that this can mostly be s/SHA-1/object name/, but a few messages needed rephrasing to keep the result readable. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-13docs: fix step in transition planLibravatar brian m. carlson1-1/+1
One of the required steps for the objectFormat extension is to implement the loose object index. However, without support for compatObjectFormat, we don't even know if the loose object index is needed, so it makes sense to move that step to the compatObjectFormat section. Do so. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-13docs: document SHA-256 pack and indicesLibravatar brian m. carlson1-15/+21
Now that we have SHA-256 support for packs and indices, let's document that in SHA-256 repositories, we use SHA-256 instead of SHA-1 for object names and checksums. Instead of duplicating this information throughout the document, let's just document that in SHA-1 repositories, we use SHA-1 for these purposes, and in SHA-256 repositories, we use SHA-256. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-13Seventh batchLibravatar Junio C Hamano1-0/+9
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-13Merge branch 'rp/blame-first-parent-doc'Libravatar Junio C Hamano1-0/+6
The "git blame --first-parent" option was not documented, but now it is. * rp/blame-first-parent-doc: blame-options.txt: document --first-parent option
2020-08-13Merge branch 'ma/test-quote-cleanup'Libravatar Junio C Hamano18-80/+53
Test cleanup. * ma/test-quote-cleanup: t4104: modernize and simplify quoting t: don't spuriously close and reopen quotes
2020-08-13Merge branch 'jt/has_object'Libravatar Junio C Hamano7-10/+62
A new helper function has_object() has been introduced to make it easier to mark object existence checks that do and don't want to trigger lazy fetches, and a few such checks are converted using it. * jt/has_object: fsck: do not lazy fetch known non-promisor object pack-objects: no fetch when allow-{any,promisor} apply: do not lazy fetch when applying binary sha1-file: introduce no-lazy-fetch has_object()
2020-08-13Merge branch 'bc/sha-256-cvs-svn-updates'Libravatar Junio C Hamano1-1/+1
Portability fix. * bc/sha-256-cvs-svn-updates: git-cvsexportcommit: support Perl before 5.10.1
2020-08-13rebase -i: fix possibly wrong onto hash in todoLibravatar Antti Keränen2-2/+9
'todo_list_write_to_file' may overwrite the static buffer, originating from 'find_unique_abbrev', that was used to store the short commit hash 'c' for "# Rebase a..b onto c" message in the todo editor. This is because the buffer that is returned from 'find_unique_abbrev' is valid until 4 more calls to `find_unique_abbrev` are made. As 'todo_list_write_to_file' calls 'find_unique_abbrev' for each rebased commit, the hash for 'c' is overwritten if there are 4 or more commits in the rebase. This behavior has been broken since its introduction. Fix by storing the short onto commit hash in a different buffer that remains valid, before calling 'todo_list_write_to_file'. Found-by: Jussi Keränen <jussike@gmail.com> Signed-off-by: Antti Keränen <detegr@rbx.email> Acked-by: Alban Gruin <alban.gruin@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-13userdiff: improve Fortran xfuncname regexLibravatar Philippe Blain2-2/+1
The third part of the Fortran xfuncname regex wants to match the beginning of a subroutine or function, so it allows for all characters except `'`, `"` or whitespace before the keyword 'function' or 'subroutine'. This is meant to match the 'recursive', 'elemental' or 'pure' keywords, as well as function return types, and to prevent matches inside strings. However, the negated set does not contain the `!` comment character, so a line with an end-of-line comment containing the keyword 'function' or 'subroutine' followed by another word is mistakenly chosen as a hunk header. Improve the regex by adding `!` to the negated set. Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-13userdiff: add tests for Fortran xfuncname regexLibravatar Philippe Blain11-0/+100
The Fortran userdiff patterns, introduced in 909a5494f8 (userdiff.c: add builtin fortran regex patterns, 2010-09-10), predate the test infrastructure for xfuncname patterns, introduced in bfa7d01413 (t4018: an infrastructure to test hunk headers, 2014-03-21). Add tests for the Fortran xfuncname patterns. The test 't/t4018/fortran-comment-keyword' documents a shortcoming of the regex that is fixed in a subsequent commit. While at it, add descriptive comments for the different parts of the regex. Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-13fetch, pull doc: correct description of '--set-upstream'Libravatar Philippe Blain1-1/+1
The '--set-upstream' option to `git fetch` (which is also accepted by `git pull` and passed through to the underlying `git fetch`) allows setting the upstream configuration for the current branch. This was added in 24bc1a1292 (pull, fetch: add --set-upstream option, 2019-08-19). However, the documentation for that option describes its action as 'If the remote is fetched successfully, pull and add upstream (tracking) reference [...]', which is wrong because this option does not cause neither `git fetch` nor `git pull` to pull: `git fetch` does not pull and `git pull` always pulls. Fix the description of that option. Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-13docs: commit-graph: fix some whitespace in the diagramLibravatar Johannes Berg1-3/+3
In the merge diagram, some whitespace is missing which makes it a bit confusing, fix that. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>