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2020-08-11Merge branch 'bc/sha-256-part-3'Libravatar Junio C Hamano1-7/+11
The final leg of SHA-256 transition. * bc/sha-256-part-3: (39 commits) t: remove test_oid_init in tests docs: add documentation for extensions.objectFormat ci: run tests with SHA-256 t: make SHA1 prerequisite depend on default hash t: allow testing different hash algorithms via environment t: add test_oid option to select hash algorithm repository: enable SHA-256 support by default setup: add support for reading extensions.objectformat bundle: add new version for use with SHA-256 builtin/verify-pack: implement an --object-format option http-fetch: set up git directory before parsing pack hashes t0410: mark test with SHA1 prerequisite t5308: make test work with SHA-256 t9700: make hash size independent t9500: ensure that algorithm info is preserved in config t9350: make hash size independent t9301: make hash size independent t9300: use $ZERO_OID instead of hard-coded object ID t9300: abstract away SHA-1-specific constants t8011: make hash size independent ...
2020-07-30t8002: make hash size independentLibravatar brian m. carlson1-7/+11
Compute the length of an object ID instead of hard-coding 40-based values. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Reviewed-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-07-21sha1-file: make pretend_object_file() not prefetchLibravatar Jonathan Tan1-0/+11
When pretend_object_file() is invoked with an object that does not exist (as is the typical case), there is no need to fetch anything from the promisor remote, because the caller already knows what the object is supposed to contain. Therefore, suppress the fetch. (The OBJECT_INFO_QUICK flag is added for the same reason.) This was noticed at $DAYJOB when "blame" was run on a file that had uncommitted modifications. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-23exclude-promisor-objects: declare when option is allowedLibravatar Matthew DeVore1-0/+4
The --exclude-promisor-objects option causes some funny behavior in at least two commands: log and blame. It causes a BUG crash: $ git log --exclude-promisor-objects BUG: revision.c:2143: exclude_promisor_objects can only be used when fetch_if_missing is 0 Aborted [134] Fix this such that the option is treated like any other unknown option. The commands that must support it are limited, so declare in those commands that the flag is supported. In particular: pack-objects prune rev-list The commands were found by searching for logic which parses --exclude-promisor-objects outside of revision.c. Extra logic outside of revision.c is needed because fetch_if_missing must be turned on before revision.c sees the option or it will BUG-crash. The above list is supported by the fact that no other command is introspectively invoked by another command passing --exclude-promisor-object. Signed-off-by: Matthew DeVore <matvore@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-07blame: handle --no-abbrevLibravatar Jeff King1-0/+4
You can already ask blame for full sha1s with "-l" or with "--abbrev=40". But for consistency with other parts of Git, we should support "--no-abbrev". Worse, blame already accepts --no-abbrev, but it's totally broken. When we see --no-abbrev, the abbrev variable is set to 0, which is then used as a printf precision. For regular sha1s, that means we print nothing at all (which is very wrong). For boundary commits we decrement it to "-1", which printf interprets as "no limit" (which is almost correct, except it misses the 39-length magic explained in the previous commit). Let's detect --no-abbrev and behave as if --abbrev=40 was given. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-07blame: fix alignment with --abbrev=40Libravatar Jeff King1-0/+28
The blame command internally adds 1 to any requested sha1 abbreviation length, and then subtracts it when outputting a boundary commit. This lets regular and boundary sha1s line up visually, but it misses one corner case. When the requested length is 40, we bump the value to 41. But since we only have 40 characters, that's all we can show (fortunately the truncation is done by a printf precision field, so it never tries to read past the end of the buffer). So a normal sha1 shows 40 hex characters, and a boundary sha1 shows "^" plus 40 hex characters. The result is misaligned. The "-l" option to show long sha1s gets around this by skipping the "abbrev" variable entirely and just always using GIT_SHA1_HEXSZ. This avoids the "+1" issue, but it does mean that boundary commits only have 39 characters printed. This is somewhat odd, but it does look good visually: the results are aligned and left-justified. The alternative would be to allocate an extra column that would contain either an extra space or the "^" boundary marker. As this is by definition the human-readable view, it's probably not that big a deal either way (and of course --porcelain, etc, correctly produce correct 40-hex sha1s). But for consistency, this patch teaches --abbrev=40 to produce the same output as "-l" (always left-aligned, with 40-hex for normal sha1s, and "^" plus 39-hex for boundaries). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-08-29blame: fix segfault on untracked filesLibravatar Thomas Gummerer1-0/+5
Since 3b75ee9 ("blame: allow to blame paths freshly added to the index", 2016-07-16) git blame also looks at the index to determine if there is a file that was freshly added to the index. cache_name_pos returns -pos - 1 in case there is no match is found, or if the name matches, but the entry has a stage other than 0. As git blame should work for unmerged files, it uses strcmp to determine whether the name of the returned position matches, in which case the file exists, but is merely unmerged, or if the file actually doesn't exist in the index. If the repository is empty, or if the file would lexicographically be sorted as the last file in the repository, -cache_name_pos - 1 is outside of the length of the active_cache array, causing git blame to segfault. Guard against that, and die() normally to restore the old behaviour. Reported-by: Simon Ruderich <simon@ruderich.org> Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-01blame: add blame.showEmail configurationLibravatar Quentin Neill1-0/+62
Complement existing --show-email option with fallback configuration variable, with tests. Signed-off-by: Quentin Neill <quentin.neill@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-07-17t8001/t8002 (blame): modernize styleLibravatar Eric Sunshine1-2/+10
In particular, - indent with tabs - cuddle test description and opening body quote with test_expect_foo - normalize test descriptions and case - remove whitepsace following redirection operator - use standardized filenames (such as "actual", "expected") Signed-off-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-29blame: tolerate bogus e-mail addresses a bit betterLibravatar Josh Stone1-1/+1
The names and e-mails are sanitized by fmt_ident() when creating commits, so that they do not contain "<" nor ">", and the "committer" and "author" lines in the commit object will always be in the form: ("author" | "committer") name SP "<" email ">" SP timestamp SP zone When parsing the email part out, the current code looks for SP starting from the end of the email part, but the author could obfuscate the address as "author at example dot com". We should instead look for SP followed by "<", to match the logic of the side that formats these lines. Signed-off-by: Josh Stone <jistone@redhat.com> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-10-19blame: Add option to show author email instead of nameLibravatar Kevin Ballard1-0/+5
Add a new option -e (or --show-email) to git-blame that will display the author's email instead of name on each line. This option works for both git-blame and git-annotate. Signed-off-by: Kevin Ballard <kevin@sb.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-17tests: use $TEST_DIRECTORY to refer to the t/ directoryLibravatar Junio C Hamano1-1/+1
Many test scripts assumed that they will start in a 'trash' subdirectory that is a single level down from the t/ directory, and referred to their test vector files by asking for files like "../t9999/expect". This will break if we move the 'trash' subdirectory elsewhere. To solve this, we earlier introduced "$TEST_DIRECTORY" so that they can refer to t/ directory reliably. This finally makes all the tests use it to refer to the outside environment. With this patch, and a one-liner not included here (because it would contradict with what Dscho really wants to do): | diff --git a/t/test-lib.sh b/t/test-lib.sh | index 70ea7e0..60e69e4 100644 | --- a/t/test-lib.sh | +++ b/t/test-lib.sh | @@ -485,7 +485,7 @@ fi | . ../GIT-BUILD-OPTIONS | | # Test repository | -test="trash directory" | +test="trash directory/another level/yet another" | rm -fr "$test" || { | trap - exit | echo >&5 "FATAL: Cannot prepare test area" all the tests still pass, but we would want extra sets of eyeballs on this type of change to really make sure. [jc: with help from Stephan Beyer on http-push tests I do not run myself; credits for locating silly quoting errors go to Olivier Marin.] Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-02Rewrite "git-frotz" to "git frotz"Libravatar Junio C Hamano1-1/+1
This uses the remove-dashes target to replace "git-frotz" to "git frotz". Signed-off-by: Junio C Hamano <gitster@pobox.com>
2006-03-05annotate-blame test: don't "source", but say "."Libravatar Junio C Hamano1-1/+1
Just I am old fashioned. Source inclusion in bourne shell is "." (dot), not "source" -- that's csh. [jc: yes I know bash groks it, but I am old fashioned.] Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-03-05git-blame: Use the same tests for git-blame as for git-annotateLibravatar Fredrik Kuivinen1-0/+9
Signed-off-by: Fredrik Kuivinen <freku045@student.liu.se> Signed-off-by: Junio C Hamano <junkio@cox.net>