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Ben Peart 883e248b8a fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files. When the index is read from disk, the fsmonitor index extension is used to flag the last known potentially dirty index entries. The registered core.fsmonitor command is called with the time the index was last updated and returns the list of files changed since that time. This list is used to flag any additional dirty cache entries and untracked cache directories. We can then use this valid state to speed up preload_index(), ie_match_stat(), and refresh_cache_ent() as they do not need to lstat() files to detect potential changes for those entries marked CE_FSMONITOR_VALID. In addition, if the untracked cache is turned on valid_cached_dir() can skip checking directories for new or changed files as fsmonitor will invalidate the cache only for those directories that have been identified as having potential changes. To keep the CE_FSMONITOR_VALID state accurate during git operations; when git updates a cache entry to match the current state on disk, it will now set the CE_FSMONITOR_VALID bit. Inversely, anytime git changes a cache entry, the CE_FSMONITOR_VALID bit is cleared and the corresponding untracked cache directory is marked invalid. Signed-off-by: Ben Peart <benpeart@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>		2017-10-01 17:23:01 +09:00
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cache.h	fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files.	2017-10-01 17:23:01 +09:00
check-builtins.sh
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config.c	fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files.	2017-10-01 17:23:01 +09:00
config.h	fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files.	2017-10-01 17:23:01 +09:00
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diff-lib.c	fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files.	2017-10-01 17:23:01 +09:00
diff-no-index.c
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diffcore-rename.c
diffcore.h
dir-iterator.c
dir-iterator.h
dir.c	fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files.	2017-10-01 17:23:01 +09:00
dir.h	fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files.	2017-10-01 17:23:01 +09:00
editor.c
entry.c	fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files.	2017-10-01 17:23:01 +09:00
environment.c	fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files.	2017-10-01 17:23:01 +09:00
exec_cmd.c
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fast-import.c
fetch-pack.c
fetch-pack.h
fmt-merge-msg.h
fsck.c
fsck.h
fsmonitor.c	fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files.	2017-10-01 17:23:01 +09:00
fsmonitor.h	fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files.	2017-10-01 17:23:01 +09:00
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git-compat-util.h
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lockfile.c
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mailinfo.c
mailinfo.h
mailmap.c
mailmap.h
Makefile	fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files.	2017-10-01 17:23:01 +09:00
match-trees.c
merge-blobs.c
merge-blobs.h
merge-recursive.c
merge-recursive.h
merge.c
mergesort.c
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mru.h
name-hash.c
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pager.c
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path.c
path.h
pathspec.c
pathspec.h
pkt-line.c
pkt-line.h
preload-index.c	fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files.	2017-10-01 17:23:01 +09:00
pretty.c
prio-queue.c
prio-queue.h
progress.c
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prompt.c
prompt.h
quote.c
quote.h
reachable.c
reachable.h
read-cache.c	fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files.	2017-10-01 17:23:01 +09:00
README.md
ref-filter.c
ref-filter.h
reflog-walk.c
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refs.c
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submodule.c	fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files.	2017-10-01 17:23:01 +09:00
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unimplemented.sh
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unpack-trees.c	fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files.	2017-10-01 17:23:01 +09:00
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worktree.c
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xdiff-interface.c
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zlib.c

README.md

Git - fast, scalable, distributed revision control system

Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals.

Git is an Open Source project covered by the GNU General Public License version 2 (some parts of it are under different licenses, compatible with the GPLv2). It was originally written by Linus Torvalds with help of a group of hackers around the net.

Please read the file INSTALL for installation instructions.

Many Git online resources are accessible from https://git-scm.com/ including full documentation and Git related tools.

See Documentation/gittutorial.txt to get started, then see Documentation/giteveryday.txt for a useful minimum set of commands, and Documentation/git-.txt for documentation of each command. If git has been correctly installed, then the tutorial can also be read with man gittutorial or git help tutorial, and the documentation of each command with man git-<commandname> or git help <commandname>.

CVS users may also want to read Documentation/gitcvs-migration.txt (man gitcvs-migration or git help cvs-migration if git is installed).

The user discussion and development of Git take place on the Git mailing list -- everyone is welcome to post bug reports, feature requests, comments and patches to git@vger.kernel.org (read Documentation/SubmittingPatches for instructions on patch submission). To subscribe to the list, send an email with just "subscribe git" in the body to majordomo@vger.kernel.org. The mailing list archives are available at https://public-inbox.org/git/, http://marc.info/?l=git and other archival sites.

The maintainer frequently sends the "What's cooking" reports that list the current status of various development topics to the mailing list. The discussion following them give a good reference for project status, development direction and remaining tasks.

The name "git" was given by Linus Torvalds when he wrote the very first version. He described the tool as "the stupid content tracker" and the name as (depending on your mood):

random three-letter combination that is pronounceable, and not actually used by any common UNIX command. The fact that it is a mispronunciation of "get" may or may not be relevant.
stupid. contemptible and despicable. simple. Take your pick from the dictionary of slang.
"global information tracker": you're in a good mood, and it actually works for you. Angels sing, and a light suddenly fills the room.
"goddamn idiotic truckload of sh*t": when it breaks