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2018-10-19Merge branch 'ds/commit-graph-leakfix'Libravatar Junio C Hamano2-11/+16
Code clean-up. * ds/commit-graph-leakfix: commit-graph: reduce initial oid allocation builtin/commit-graph.c: UNLEAK variables commit-graph: clean up leaked memory during write
2018-10-19Merge branch 'jt/non-blob-lazy-fetch'Libravatar Junio C Hamano3-42/+121
A partial clone that is configured to lazily fetch missing objects will on-demand issue a "git fetch" request to the originating repository to fill not-yet-obtained objects. The request has been optimized for requesting a tree object (and not the leaf blob objects contained in it) by telling the originating repository that no blobs are needed. * jt/non-blob-lazy-fetch: fetch-pack: exclude blobs when lazy-fetching trees fetch-pack: avoid object flags if no_dependents
2018-10-19Merge branch 'pw/diff-color-moved-ws-fix'Libravatar Junio C Hamano1-41/+54
Various fixes to "diff --color-moved-ws". * pw/diff-color-moved-ws-fix: diff --color-moved: fix a memory leak diff --color-moved-ws: fix another memory leak diff --color-moved-ws: fix a memory leak diff --color-moved-ws: fix out of bounds string access diff --color-moved-ws: fix double free crash
2018-10-19Merge branch 'rs/oidset-on-khash'Libravatar Junio C Hamano4-61/+81
The oidset API was built on top of the oidmap API which in turn is on the hashmap API. Replace the implementation to build on top of the khash API and gain performance. * rs/oidset-on-khash: oidset: uninline oidset_init() oidset: use khash khash: factor out kh_release_* fetch-pack: load tip_oids eagerly iff needed fetch-pack: factor out is_unmatched_ref()
2018-10-19Merge branch 'rs/grep-no-recursive'Libravatar Junio C Hamano3-2/+23
Unlike "grep", "git grep" by default recurses to the whole tree. The command learned "git grep --recursive" option, so that "git grep --no-recursive" can serve as a synonym to setting the max-depth to 0. * rs/grep-no-recursive: grep: add -r/--[no-]recursive
2018-10-19Merge branch 'nd/help-commands-verbose-by-default'Libravatar Junio C Hamano4-10/+54
"git help -a" and "git help -av" give different pieces of information, and generally the "verbose" version is more friendly to the new users. "git help -a" by default now uses the more verbose output (with "--no-verbose", you can go back to the original). Also "git help -av" now lists aliases and external commands, which it did not used to. * nd/help-commands-verbose-by-default: help -a: improve and make --verbose default
2018-10-19Merge branch 'jc/how-to-document-api'Libravatar Junio C Hamano1-1/+4
Doc update. * jc/how-to-document-api: CodingGuidelines: document the API in *.h files
2018-10-19Merge branch 'sm/show-superproject-while-conflicted'Libravatar Junio C Hamano2-1/+17
A corner-case bugfix. * sm/show-superproject-while-conflicted: rev-parse: --show-superproject-working-tree should work during a merge
2018-10-19Merge branch 'jt/fetch-tips-in-partial-clone'Libravatar Junio C Hamano3-5/+33
"git fetch $repo $object" in a partial clone did not correctly fetch the asked-for object that is referenced by an object in promisor packfile, which has been fixed. * jt/fetch-tips-in-partial-clone: fetch: in partial clone, check presence of targets connected: document connectivity in partial clones
2018-10-19Merge branch 'nd/status-refresh-progress'Libravatar Junio C Hamano6-11/+72
"git status" learns to show progress bar when refreshing the index takes a long time. * nd/status-refresh-progress: status: show progress bar if refreshing the index takes too long
2018-10-19Merge branch 'bp/read-cache-parallel'Libravatar Junio C Hamano7-120/+739
A new extension to the index file has been introduced, which allows the file to be read in parallel. * bp/read-cache-parallel: read-cache: load cache entries on worker threads ieot: add Index Entry Offset Table (IEOT) extension read-cache: load cache extensions on a worker thread config: add new index.threads config setting eoie: add End of Index Entry (EOIE) extension read-cache: clean up casting and byte decoding read-cache.c: optimize reading index format v4
2018-10-19Merge branch 'bp/rename-test-env-var'Libravatar Junio C Hamano8-18/+58
Some environment variables that control the runtime options of Git used during tests are getting renamed for consistency. * bp/rename-test-env-var: t0000: do not get self-test disrupted by environment warnings preload-index: update GIT_FORCE_PRELOAD_TEST support read-cache: update TEST_GIT_INDEX_VERSION support fsmonitor: update GIT_TEST_FSMONITOR support preload-index: use git_env_bool() not getenv() for customization t/README: correct spelling of "uncommon"
2018-10-19Merge branch 'ss/wt-status-committable'Libravatar Junio C Hamano4-119/+123
Code clean-up in the internal machinery used by "git status" and "git commit --dry-run". * ss/wt-status-committable: roll wt_status_state into wt_status and populate in the collect phase wt-status.c: set the committable flag in the collect phase t7501: add test of "commit --dry-run --short" wt-status: rename commitable to committable wt-status.c: move has_unmerged earlier in the file
2018-10-19Merge branch 'nd/the-index'Libravatar Junio C Hamano87-552/+751
Various codepaths in the core-ish part learn to work on an arbitrary in-core index structure, not necessarily the default instance "the_index". * nd/the-index: (23 commits) revision.c: reduce implicit dependency the_repository revision.c: remove implicit dependency on the_index ws.c: remove implicit dependency on the_index tree-diff.c: remove implicit dependency on the_index submodule.c: remove implicit dependency on the_index line-range.c: remove implicit dependency on the_index userdiff.c: remove implicit dependency on the_index rerere.c: remove implicit dependency on the_index sha1-file.c: remove implicit dependency on the_index patch-ids.c: remove implicit dependency on the_index merge.c: remove implicit dependency on the_index merge-blobs.c: remove implicit dependency on the_index ll-merge.c: remove implicit dependency on the_index diff-lib.c: remove implicit dependency on the_index read-cache.c: remove implicit dependency on the_index diff.c: remove implicit dependency on the_index grep.c: remove implicit dependency on the_index diff.c: remove the_index dependency in textconv() functions blame.c: rename "repo" argument to "r" combine-diff.c: remove implicit dependency on the_index ...
2018-10-19Merge branch 'nd/complete-fetch-multiple-args'Libravatar Junio C Hamano1-0/+1
Teach bash completion that "git fetch --multiple" only takes remote names as arguments and no refspecs. * nd/complete-fetch-multiple-args: completion: support "git fetch --multiple"
2018-10-16Fourth batch for 2.20Libravatar Junio C Hamano1-0/+50
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-16Merge branch 'sf/complete-stash-list'Libravatar Junio C Hamano1-0/+3
The completion script (in contrib/) learned to complete a handful of options "git stash list" command takes. * sf/complete-stash-list: git-completion.bash: add completion for stash list
2018-10-16Merge branch 'mw/doc-typofixes'Libravatar Junio C Hamano2-3/+2
Typofixes. * mw/doc-typofixes: docs: typo: s/isimilar/similar/ docs: graph: remove unnecessary `graph_update()' call docs: typo: s/go/to/
2018-10-16Merge branch 'js/mingw-wants-vista-or-above'Libravatar Junio C Hamano4-9/+20
The minimum version of Windows supported by Windows port fo Git is now set to Vista. * js/mingw-wants-vista-or-above: mingw: bump the minimum Windows version to Vista mingw: set _WIN32_WINNT explicitly for Git for Windows compat/poll: prepare for targeting Windows Vista
2018-10-16Merge branch 'rs/sequencer-oidset-insert-avoids-dups'Libravatar Junio C Hamano1-3/+1
Code clean-up. * rs/sequencer-oidset-insert-avoids-dups: sequencer: use return value of oidset_insert()
2018-10-16Merge branch 'jk/oideq-hasheq-cleanup'Libravatar Junio C Hamano4-7/+8
Code clean-up. * jk/oideq-hasheq-cleanup: more oideq/hasheq conversions
2018-10-16Merge branch 'ma/mailing-list-address-in-git-help'Libravatar Junio C Hamano1-1/+3
Doc update. * ma/mailing-list-address-in-git-help: git doc: direct bug reporters to mailing list archive
2018-10-16Merge branch 'nd/packobjectshook-doc-fix'Libravatar Junio C Hamano1-4/+4
Doc update. * nd/packobjectshook-doc-fix: config.txt: correct the note about uploadpack.packObjectsHook
2018-10-16Merge branch 'rt/rebase-typofix'Libravatar Junio C Hamano1-3/+3
Typofix. * rt/rebase-typofix: git-rebase.sh: fix typos in error messages
2018-10-16Merge branch 'ma/t1400-undebug-test'Libravatar Junio C Hamano1-1/+1
Test fix. * ma/t1400-undebug-test: t1400: drop debug `echo` to actually execute `test`
2018-10-16Merge branch 'ma/commit-graph-docs'Libravatar Junio C Hamano2-19/+20
Doc update. * ma/commit-graph-docs: Doc: refer to the "commit-graph file" with dash git-commit-graph.txt: refer to "*commit*-graph file" git-commit-graph.txt: typeset more in monospace git-commit-graph.txt: fix bullet lists
2018-10-16Merge branch 'dz/credential-doc-url-matching-rules'Libravatar Junio C Hamano1-0/+6
Doc update. * dz/credential-doc-url-matching-rules: doc: clarify gitcredentials path component matching
2018-10-16Merge branch 'en/status-multiple-renames-to-the-same-target-fix'Libravatar Junio C Hamano2-0/+24
The code in "git status" sometimes hit an assertion failure. This was caused by a structure that was reused without cleaning the data used for the first run, which has been corrected. * en/status-multiple-renames-to-the-same-target-fix: commit: fix erroneous BUG, 'multiple renames on the same target? how?'
2018-10-16Merge branch 'ds/reachable-final-cleanup'Libravatar Junio C Hamano1-5/+3
Code already in 'master' is further cleaned-up by this patch. * ds/reachable-final-cleanup: commit-reach: cleanups in can_all_from_reach...
2018-10-16Merge branch 'jk/check-everything-connected-is-long-gone'Libravatar Junio C Hamano1-1/+1
Comment fix. * jk/check-everything-connected-is-long-gone: receive-pack: update comment with check_everything_connected
2018-10-16Merge branch 'jn/gc-auto'Libravatar Junio C Hamano3-10/+32
"gc --auto" ended up calling exit(-1) upon error, which has been corrected to use exit(1). Also the error reporting behaviour when daemonized has been updated to exit with zero status when stopping due to a previously discovered error (which implies there is no point running gc to improve the situation); we used to exit with failure in such a case. * jn/gc-auto: gc: do not return error for prior errors in daemonized mode
2018-10-16Merge branch 'jn/gc-auto-prep'Libravatar Junio C Hamano2-23/+19
Code clean-up. * jn/gc-auto-prep: gc: exit with status 128 on failure gc: improve handling of errors reading gc.log
2018-10-16Merge branch 'md/test-cleanup'Libravatar Junio C Hamano39-399/+568
Various test scripts have been updated for style and also correct handling of exit status of various commands. * md/test-cleanup: tests: order arguments to git-rev-list properly t9109: don't swallow Git errors upstream of pipes tests: don't swallow Git errors upstream of pipes t/*: fix ordering of expected/observed arguments tests: standardize pipe placement Documentation: add shell guidelines t/README: reformat Do, Don't, Keep in mind lists
2018-10-16Merge branch 'fe/doc-updates'Libravatar Junio C Hamano3-5/+39
Doc updates. * fe/doc-updates: git-describe.1: clarify that "human readable" is also git-readable git-column.1: clarify initial description, provide examples git-archimport.1: specify what kind of Arch we're talking about
2018-10-16Merge branch 'jn/mailmap-update'Libravatar Junio C Hamano1-1/+1
The mailmap file update. * jn/mailmap-update: mailmap: consistently normalize brian m. carlson's name
2018-10-16Merge branch 'tg/t5551-with-curl-7.61.1'Libravatar Junio C Hamano1-34/+34
Test update. * tg/t5551-with-curl-7.61.1: t5551: compare sorted cookies files t5551: move setup code inside test_expect blocks
2018-10-16Merge branch 'en/merge-cleanup'Libravatar Junio C Hamano1-93/+51
Code clean-up. * en/merge-cleanup: merge-recursive: rename merge_file_1() and merge_content() merge-recursive: remove final remaining caller of merge_file_one() merge-recursive: avoid wrapper function when unnecessary and wasteful merge-recursive: set paths correctly when three-way merging content
2018-10-16Merge branch 'rj/header-check'Libravatar Junio C Hamano8-0/+32
Header files clean-up. * rj/header-check: delta-islands.h: add missing forward declarations (hdr-check) midx.h: add missing forward declarations (hdr-check) refs/refs-internal.h: add missing declarations (hdr-check) refs/packed-backend.h: add missing declaration (hdr-check) refs/ref-cache.h: add missing declarations (hdr-check) ewah/ewok_rlw.h: add missing include (hdr-check) json-writer.h: add missing include (hdr-check) Makefile: add a hdr-check target
2018-10-16Merge branch 'ma/config-doc-update'Libravatar Junio C Hamano3-6/+6
Doc update. * ma/config-doc-update: git-config.txt: fix 'see: above' note Doc: use `--type=bool` instead of `--bool`
2018-10-16Merge branch 'jk/delta-islands-with-bitmap-reuse-delta-fix'Libravatar Junio C Hamano1-16/+52
Fix interactions between two recent topics. * jk/delta-islands-with-bitmap-reuse-delta-fix: pack-objects: handle island check for "external" delta base
2018-10-16Merge branch 'tq/refs-internal-comment-fix'Libravatar Junio C Hamano1-1/+1
Fix for typo in a sample code in comment. * tq/refs-internal-comment-fix: refs: docstring typo
2018-10-16Merge branch 'ts/alias-of-alias'Libravatar Junio C Hamano2-3/+65
An alias that expands to another alias has so far been forbidden, but now it is allowed to create such an alias. * ts/alias-of-alias: t0014: introduce an alias testing suite alias: show the call history when an alias is looping alias: add support for aliases of an alias
2018-10-16Merge branch 'ds/commit-graph-with-grafts'Libravatar Junio C Hamano16-30/+194
The recently introduced commit-graph auxiliary data is incompatible with mechanisms such as replace & grafts that "breaks" immutable nature of the object reference relationship. Disable optimizations based on its use (and updating existing commit-graph) when these incompatible features are in use in the repository. * ds/commit-graph-with-grafts: commit-graph: close_commit_graph before shallow walk commit-graph: not compatible with uninitialized repo commit-graph: not compatible with grafts commit-graph: not compatible with replace objects test-repository: properly init repo commit-graph: update design document refs.c: upgrade for_each_replace_ref to be a each_repo_ref_fn callback refs.c: migrate internal ref iteration to pass thru repository argument
2018-10-16Merge branch 'ab/commit-graph-progress'Libravatar Junio C Hamano6-14/+87
Generation of (experimental) commit-graph files have so far been fairly silent, even though it takes noticeable amount of time in a meaningfully large repository. The users will now see progress output. * ab/commit-graph-progress: gc: fix regression in 7b0f229222 impacting --quiet commit-graph verify: add progress output commit-graph write: add progress output
2018-10-11read-cache: load cache entries on worker threadsLibravatar Ben Peart1-37/+193
This patch helps address the CPU cost of loading the index by utilizing the Index Entry Offset Table (IEOT) to divide loading and conversion of the cache entries across multiple threads in parallel. I used p0002-read-cache.sh to generate some performance data: Test w/100,000 files reduced the time by 32.24% Test w/1,000,000 files reduced the time by -4.77% Note that on the 1,000,000 files case, multi-threading the cache entry parsing does not yield a performance win. This is because the cost to parse the index extensions in this repo, far outweigh the cost of loading the cache entries. The high cost of parsing the index extensions is driven by the cache tree and the untracked cache extensions. As this is currently the longest pole, any reduction in this time will reduce the overall index load times so is worth further investigation in another patch series. Signed-off-by: Ben Peart <benpeart@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-11ieot: add Index Entry Offset Table (IEOT) extensionLibravatar Ben Peart2-3/+211
This patch enables addressing the CPU cost of loading the index by adding additional data to the index that will allow us to efficiently multi- thread the loading and conversion of cache entries. It accomplishes this by adding an (optional) index extension that is a table of offsets to blocks of cache entries in the index file. To make this work for V4 indexes, when writing the cache entries, it periodically "resets" the prefix-compression by encoding the current entry as if the path name for the previous entry is completely different and saves the offset of that entry in the IEOT. Basically, with V4 indexes, it generates offsets into blocks of prefix-compressed entries. Signed-off-by: Ben Peart <benpeart@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-11read-cache: load cache extensions on a worker threadLibravatar Ben Peart1-16/+79
This patch helps address the CPU cost of loading the index by loading the cache extensions on a worker thread in parallel with loading the cache entries. In some cases, loading the extensions takes longer than loading the cache entries so this patch utilizes the new EOIE to start the thread to load the extensions before loading all the cache entries in parallel. This is possible because the current extensions don't access the cache entries in the index_state structure so are OK that they don't all exist yet. The CACHE_EXT_TREE, CACHE_EXT_RESOLVE_UNDO, and CACHE_EXT_UNTRACKED extensions don't even get a pointer to the index so don't have access to the cache entries. CACHE_EXT_LINK only uses the index_state to initialize the split index. CACHE_EXT_FSMONITOR only uses the index_state to save the fsmonitor last update and dirty flags. I used p0002-read-cache.sh to generate some performance data: Test w/100,000 files reduced the time by 0.53% Test w/1,000,000 files reduced the time by 27.78% Signed-off-by: Ben Peart <benpeart@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-11config: add new index.threads config settingLibravatar Ben Peart5-0/+36
Add support for a new index.threads config setting which will be used to control the threading code in do_read_index(). A value of 0 will tell the index code to automatically determine the correct number of threads to use. A value of 1 will make the code single threaded. A value greater than 1 will set the maximum number of threads to use. For testing purposes, this setting can be overwritten by setting the GIT_TEST_INDEX_THREADS=<n> environment variable to a value greater than 0. Signed-off-by: Ben Peart <benpeart@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-11eoie: add End of Index Entry (EOIE) extensionLibravatar Ben Peart3-12/+177
The End of Index Entry (EOIE) is used to locate the end of the variable length index entries and the beginning of the extensions. Code can take advantage of this to quickly locate the index extensions without having to parse through all of the index entries. The EOIE extension is always written out to the index file including to the shared index when using the split index feature. Because it is always written out, the SHA checksums in t/t1700-split-index.sh were updated to reflect its inclusion. It is written as an optional extension to ensure compatibility with other git implementations that do not yet support it. It is always written out to ensure it is available as often as possible to speed up index operations. Because it must be able to be loaded before the variable length cache entries and other index extensions, this extension must be written last. The signature for this extension is { 'E', 'O', 'I', 'E' }. The extension consists of: - 32-bit offset to the end of the index entries - 160-bit SHA-1 over the extension types and their sizes (but not their contents). E.g. if we have "TREE" extension that is N-bytes long, "REUC" extension that is M-bytes long, followed by "EOIE", then the hash would be: SHA-1("TREE" + <binary representation of N> + "REUC" + <binary representation of M>) Signed-off-by: Ben Peart <benpeart@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-11read-cache: clean up casting and byte decodingLibravatar Ben Peart1-12/+11
This patch does a clean up pass to minimize the casting required to work with the memory mapped index (mmap). It also makes the decoding of network byte order more consistent by using get_be32() where possible. Signed-off-by: Ben Peart <benpeart@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>