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2018-04-16pack-objects: shrink size field in struct object_entryLibravatar Nguyễn Thái Ngọc Duy1-0/+6
It's very very rare that an uncompressed object is larger than 4GB (partly because Git does not handle those large files very well to begin with). Let's optimize it for the common case where object size is smaller than this limit. Shrink size field down to 31 bits and one overflow bit. If the size is too large, we read it back from disk. As noted in the previous patch, we need to return the delta size instead of canonical size when the to-be-reused object entry type is a delta instead of a canonical one. Add two compare helpers that can take advantage of the overflow bit (e.g. if the file is 4GB+, chances are it's already larger than core.bigFileThreshold and there's no point in comparing the actual value). Another note about oe_get_size_slow(). This function MUST be thread safe because SIZE() macro is used inside try_delta() which may run in parallel. Outside parallel code, no-contention locking should be dirt cheap (or insignificant compared to i/o access anyway). To exercise this code, it's best to run the test suite with something like make test GIT_TEST_OE_SIZE=4 which forces this code on all objects larger than 3 bytes. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16pack-objects: move in_pack out of struct object_entryLibravatar Nguyễn Thái Ngọc Duy2-0/+10
Instead of using 8 bytes (on 64 bit arch) to store a pointer to a pack. Use an index instead since the number of packs should be relatively small. This limits the number of packs we can handle to 1k. Since we can't be sure people can never run into the situation where they have more than 1k pack files. Provide a fall back route for it. If we find out they have too many packs, the new in_pack_by_idx[] array (which has at most 1k elements) will not be used. Instead we allocate in_pack[] array that holds nr_objects elements. This is similar to how the optional in_pack_pos field is handled. The new simple test is just to make sure the too-many-packs code path is at least executed. The true test is running make test GIT_TEST_FULL_IN_PACK_ARRAY=1 to take advantage of other special case tests. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16read-cache.c: make $GIT_TEST_SPLIT_INDEX booleanLibravatar Nguyễn Thái Ngọc Duy1-0/+11
While at there, document about this special mode when running the test suite. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-12Merge branch 'svn/authors-prog-2' of git://bogomips.org/git-svnLibravatar Junio C Hamano2-1/+39
* 'svn/authors-prog-2' of git://bogomips.org/git-svn: git-svn: allow empty email-address using authors-prog and authors-file git-svn: search --authors-prog in PATH too
2018-04-11Revert "Merge branch 'en/rename-directory-detection'"Libravatar Junio C Hamano3-4000/+2
This reverts commit e4bb62fa1eeee689744b413e29a50b4d1dae6886, reversing changes made to 468165c1d8a442994a825f3684528361727cd8c0. The topic appears to inflict severe regression in renaming merges, even though the promise of it was that it would improve them. We do not yet know which exact change in the topic was wrong, but in the meantime, let's play it safe and revert it out of 'master' before real Git-using projects are harmed. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-11Merge branch 'pk/test-avoid-pipe-hiding-exit-status'Libravatar Junio C Hamano15-159/+179
Test cleanup. * pk/test-avoid-pipe-hiding-exit-status: test: avoid pipes in git related commands for test
2018-04-11Merge branch 'rs/status-with-removed-submodule'Libravatar Junio C Hamano1-0/+15
"git submodule status" misbehaved on a submodule that has been removed from the working tree. * rs/status-with-removed-submodule: submodule: check for NULL return of get_submodule_ref_store()
2018-04-11Merge branch 'nd/combined-test-helper'Libravatar Junio C Hamano119-504/+641
Small test-helper programs have been consolidated into a single binary. * nd/combined-test-helper: (36 commits) t/helper: merge test-write-cache into test-tool t/helper: merge test-wildmatch into test-tool t/helper: merge test-urlmatch-normalization into test-tool t/helper: merge test-subprocess into test-tool t/helper: merge test-submodule-config into test-tool t/helper: merge test-string-list into test-tool t/helper: merge test-strcmp-offset into test-tool t/helper: merge test-sigchain into test-tool t/helper: merge test-sha1-array into test-tool t/helper: merge test-scrap-cache-tree into test-tool t/helper: merge test-run-command into test-tool t/helper: merge test-revision-walking into test-tool t/helper: merge test-regex into test-tool t/helper: merge test-ref-store into test-tool t/helper: merge test-read-cache into test-tool t/helper: merge test-prio-queue into test-tool t/helper: merge test-path-utils into test-tool t/helper: merge test-online-cpus into test-tool t/helper: merge test-mktemp into test-tool t/helper: merge (unused) test-mergesort into test-tool ...
2018-04-11Merge branch 'sb/object-store'Libravatar Junio C Hamano1-0/+1
Refactoring the internal global data structure to make it possible to open multiple repositories, work with and then close them. Rerolled by Duy on top of a separate preliminary clean-up topic. The resulting structure of the topics looked very sensible. * sb/object-store: (27 commits) sha1_file: allow sha1_loose_object_info to handle arbitrary repositories sha1_file: allow map_sha1_file to handle arbitrary repositories sha1_file: allow map_sha1_file_1 to handle arbitrary repositories sha1_file: allow open_sha1_file to handle arbitrary repositories sha1_file: allow stat_sha1_file to handle arbitrary repositories sha1_file: allow sha1_file_name to handle arbitrary repositories sha1_file: add repository argument to sha1_loose_object_info sha1_file: add repository argument to map_sha1_file sha1_file: add repository argument to map_sha1_file_1 sha1_file: add repository argument to open_sha1_file sha1_file: add repository argument to stat_sha1_file sha1_file: add repository argument to sha1_file_name sha1_file: allow prepare_alt_odb to handle arbitrary repositories sha1_file: allow link_alt_odb_entries to handle arbitrary repositories sha1_file: add repository argument to prepare_alt_odb sha1_file: add repository argument to link_alt_odb_entries sha1_file: add repository argument to read_info_alternates sha1_file: add repository argument to link_alt_odb_entry sha1_file: add raw_object_store argument to alt_odb_usable pack: move approximate object count to object store ...
2018-04-11Merge branch 'jc/test-must-be-empty'Libravatar Junio C Hamano1-5/+2
Test helper update. * jc/test-must-be-empty: test_must_be_empty: simplify file existence check
2018-04-11Merge branch 'cc/perf-aggregate-sort'Libravatar Junio C Hamano1-5/+65
Perf-test update. * cc/perf-aggregate-sort: perf/aggregate: add --sort-by=regression option perf/aggregate: add display_dir()
2018-04-11Merge branch 'bc/hash-independent-tests'Libravatar Junio C Hamano9-82/+100
Tests that rely on the exact hardcoded values of object names have been updated in preparation for hash function migration. * bc/hash-independent-tests: t2107: abstract away SHA-1-specific constants t2101: abstract away SHA-1-specific constants t2101: modernize test style t2020: abstract away SHA-1 specific constants t1507: abstract away SHA-1-specific constants t1411: abstract away SHA-1-specific constants t1405: sort reflog entries in a hash-independent way t1300: abstract away SHA-1-specific constants t1304: abstract away SHA-1-specific constants t1011: abstract away SHA-1-specific constants
2018-04-10Merge branch 'yk/filter-branch-non-committish-refs'Libravatar Junio C Hamano1-0/+14
when refs that do not point at committish are given, "git filter-branch" gave a misleading error messages. This has been corrected. * yk/filter-branch-non-committish-refs: filter-branch: fix errors caused by refs that point at non-committish
2018-04-10Merge branch 'nd/parseopt-completion-more'Libravatar Junio C Hamano1-0/+6
The mechanism to use parse-options API to automate the command line completion continues to get extended and polished. * nd/parseopt-completion-more: completion: use __gitcomp_builtin in _git_cherry completion: use __gitcomp_builtin in _git_ls_tree completion: delete option-only completion commands completion: add --option completion for most builtin commands completion: factor out _git_xxx calling code completion: mention the oldest version we need to support git.c: add hidden option --list-parseopt-builtins git.c: move cmd_struct declaration up
2018-04-10Merge branch 'ps/contains-id-error-message'Libravatar Junio C Hamano3-5/+110
"git tag --contains no-such-commit" gave a full list of options after giving an error message. * ps/contains-id-error-message: parse-options: do not show usage upon invalid option value
2018-04-10Merge branch 'tg/stash-untracked-with-pathspec-fix'Libravatar Junio C Hamano1-0/+52
"git stash push -u -- <pathspec>" gave an unnecessary and confusing error message when there was no tracked files that match the <pathspec>, which has been fixed. * tg/stash-untracked-with-pathspec-fix: stash: drop superfluos pathspec parameter stash push -u: don't create empty stash stash push: avoid printing errors stash: fix nonsense pipeline
2018-04-10Merge branch 'nd/worktree-prune'Libravatar Junio C Hamano1-4/+3
The way "git worktree prune" worked internally has been simplified, by assuming how "git worktree move" moves an existing worktree to a different place. * nd/worktree-prune: worktree prune: improve prune logic when worktree is moved worktree: delete dead code gc.txt: more details about what gc does
2018-04-10Merge branch 'ma/shortlog-revparse'Libravatar Junio C Hamano1-0/+5
"git shortlog cruft" aborted with a BUG message when run outside a Git repository. The command has been taught to complain about extra and unwanted arguments on its command line instead in such a case. * ma/shortlog-revparse: shortlog: disallow left-over arguments outside repo shortlog: add usage-string for stdin-reading git-shortlog.txt: reorder usages
2018-04-10Merge branch 'en/rename-directory-detection'Libravatar Junio C Hamano3-2/+4000
Rename detection logic in "diff" family that is used in "merge" has learned to guess when all of x/a, x/b and x/c have moved to z/a, z/b and z/c, it is likely that x/d added in the meantime would also want to move to z/d by taking the hint that the entire directory 'x' moved to 'z'. A bug causing dirty files involved in a rename to be overwritten during merge has also been fixed as part of this work. * en/rename-directory-detection: (29 commits) merge-recursive: ensure we write updates for directory-renamed file merge-recursive: avoid spurious rename/rename conflict from dir renames directory rename detection: new testcases showcasing a pair of bugs merge-recursive: fix remaining directory rename + dirty overwrite cases merge-recursive: fix overwriting dirty files involved in renames merge-recursive: avoid clobbering untracked files with directory renames merge-recursive: apply necessary modifications for directory renames merge-recursive: when comparing files, don't include trees merge-recursive: check for file level conflicts then get new name merge-recursive: add computation of collisions due to dir rename & merging merge-recursive: check for directory level conflicts merge-recursive: add get_directory_renames() merge-recursive: make a helper function for cleanup for handle_renames merge-recursive: split out code for determining diff_filepairs merge-recursive: make !o->detect_rename codepath more obvious merge-recursive: fix leaks of allocated renames and diff_filepairs merge-recursive: introduce new functions to handle rename logic merge-recursive: move the get_renames() function directory rename detection: tests for handling overwriting dirty files directory rename detection: tests for handling overwriting untracked files ...
2018-04-05git-svn: allow empty email-address using authors-prog and authors-fileLibravatar Andreas Heiduk2-1/+39
The email address in --authors-file and --authors-prog can be empty but git-svn translated it into a fictional email address in the form jondoe <jondoe@6aafaa21e0fb4338a68ab372a049893d> containing the SVN repository UUID. Now git-svn behaves like git-commit: If the email is *explicitly* set to the empty string using '<>', the commit does not contain an email address, only the name: jondoe <> Allowing to remove the email address *intentionally* prevents automatic systems from sending emails to those fictional addresses and avoids cluttering the log output with unnecessary stuff. Signed-off-by: Andreas Heiduk <asheiduk@gmail.com> Signed-off-by: Eric Wong <e@80x24.org>
2018-03-28submodule: check for NULL return of get_submodule_ref_store()Libravatar René Scharfe1-0/+15
If we can't find a ref store for a submodule then assume the latter is not initialized (or was removed). Print a status line accordingly instead of causing a segmentation fault by passing NULL as the first parameter of refs_head_ref(). Reported-by: Jeremy Feusi <jeremy@feusi.co> Reviewed-by: Stefan Beller <sbeller@google.com> Initial-Test-By: Stefan Beller <sbeller@google.com> Helped-by: Eric Sunshine <sunshine@sunshineco.com> Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-28Merge branch 'nd/parseopt-completion'Libravatar Junio C Hamano1-0/+31
Hotfix for recently graduated topic that give help to completion scripts from the Git subcommands that are being completed * nd/parseopt-completion: t9902: disable test on the list of merge-strategies under GETTEXT_POISON completion: clear cached --options when sourcing the completion script
2018-03-28test: avoid pipes in git related commands for testLibravatar Pratik Karki15-159/+179
Avoid using pipes downstream of Git commands since the exit codes of commands upstream of pipes get swallowed, thus potentially hiding failure of those commands. Instead, capture Git command output to a file and apply the downstream command(s) to that file. Signed-off-by: Pratik Karki <predatoramigo@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27test_must_be_empty: simplify file existence checkLibravatar SZEDER Gábor1-5/+2
Commit 11395a3b4b (test_must_be_empty: make sure the file exists, not just empty, 2018-02-27) basically duplicated the 'test_path_is_file' helper function in 'test_must_be_empty'. Just call 'test_path_is_file' to avoid this code duplication. Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27perf/aggregate: add --sort-by=regression optionLibravatar Christian Couder1-1/+58
One of the most interesting thing one can be interested in when looking at performance test results is possible performance regressions. This new option makes it easy to spot such possible regressions. This new option is named '--sort-by=regression' to make it possible and easy to add other ways to sort the results, like for example '--sort-by=utime'. If we would like to sort according to how much the stime regressed we could also add a new option called '--sort-by=regression:stime'. Then '--sort-by=regression' could become a synonym for '--sort-by=regression:rtime'. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27perf/aggregate: add display_dir()Libravatar Christian Couder1-4/+7
This new helper function will be reused in a subsequent commit. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge test-write-cache into test-toolLibravatar Nguyễn Thái Ngọc Duy4-2/+5
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge test-wildmatch into test-toolLibravatar Nguyễn Thái Ngọc Duy4-8/+11
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge test-urlmatch-normalization into test-toolLibravatar Nguyễn Thái Ngọc Duy4-135/+138
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge test-subprocess into test-toolLibravatar Nguyễn Thái Ngọc Duy4-2/+5
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge test-submodule-config into test-toolLibravatar Nguyễn Thái Ngọc Duy4-10/+13
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge test-string-list into test-toolLibravatar Nguyễn Thái Ngọc Duy5-26/+29
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge test-strcmp-offset into test-toolLibravatar Nguyễn Thái Ngọc Duy4-2/+5
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge test-sigchain into test-toolLibravatar Nguyễn Thái Ngọc Duy4-3/+6
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge test-sha1-array into test-toolLibravatar Nguyễn Thái Ngọc Duy4-9/+12
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge test-scrap-cache-tree into test-toolLibravatar Nguyễn Thái Ngọc Duy4-5/+8
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge test-run-command into test-toolLibravatar Nguyễn Thái Ngọc Duy4-13/+16
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge test-revision-walking into test-toolLibravatar Nguyễn Thái Ngọc Duy4-2/+5
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge test-regex into test-toolLibravatar Nguyễn Thái Ngọc Duy5-5/+8
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge test-ref-store into test-toolLibravatar Nguyễn Thái Ngọc Duy6-5/+8
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge test-read-cache into test-toolLibravatar Nguyễn Thái Ngọc Duy4-2/+5
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge test-prio-queue into test-toolLibravatar Nguyễn Thái Ngọc Duy4-4/+7
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge test-path-utils into test-toolLibravatar Nguyễn Thái Ngọc Duy6-36/+39
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge test-online-cpus into test-toolLibravatar Nguyễn Thái Ngọc Duy4-2/+5
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge test-mktemp into test-toolLibravatar Nguyễn Thái Ngọc Duy4-3/+6
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge (unused) test-mergesort into test-toolLibravatar Nguyễn Thái Ngọc Duy3-1/+4
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge (unused) test-match-trees into test-toolLibravatar Nguyễn Thái Ngọc Duy3-1/+4
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge test-index-version into test-toolLibravatar Nguyễn Thái Ngọc Duy6-6/+9
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge test-hashmap into test-toolLibravatar Nguyễn Thái Ngọc Duy4-4/+7
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-27t/helper: merge test-genrandom into test-toolLibravatar Nguyễn Thái Ngọc Duy21-34/+37
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>