Implement line-history search (git log -L)
[git/git.git] / Documentation / git-log.txt
CommitLineData
215a7ad1
JH
1git-log(1)
2==========
3f971fc4
JH
3
4NAME
5----
215a7ad1 6git-log - Show commit logs
3f971fc4
JH
7
8
9SYNOPSIS
10--------
7791a1d9 11[verse]
b1524ee0 12'git log' [<options>] [<since>..<until>] [[\--] <path>...]
3f971fc4
JH
13
14DESCRIPTION
15-----------
e51c3b50
JH
16Shows the commit logs.
17
0b444cdb 18The command takes options applicable to the 'git rev-list'
e51c3b50 19command to control what is shown and how, and options applicable to
0b444cdb 20the 'git diff-*' commands to control how the changes
e51c3b50
JH
21each commit introduces are shown.
22
3f971fc4
JH
23
24OPTIONS
25-------
5d1faf87 26
3f971fc4 27<since>..<until>::
99e09cce
JH
28 Show only commits between the named two commits. When
29 either <since> or <until> is omitted, it defaults to
30 `HEAD`, i.e. the tip of the current branch.
41a5564e 31 For a more complete list of ways to spell <since>
9d83e382 32 and <until>, see linkgit:gitrevisions[7].
3f971fc4 33
4ded6916
EB
34--follow::
35 Continue listing the history of a file beyond renames
36 (works only for a single file).
37
8a3d203b
JH
38--no-decorate::
39--decorate[=short|full|no]::
33e7018c
LH
40 Print out the ref names of any commits that are shown. If 'short' is
41 specified, the ref name prefixes 'refs/heads/', 'refs/tags/' and
42 'refs/remotes/' will not be printed. If 'full' is specified, the
43 full ref name (including prefix) will be printed. The default option
44 is 'short'.
56822cc9 45
30c4d7a7
NS
46--source::
47 Print out the ref name given on the command line by which each
48 commit was reached.
49
ea57bc0d
AP
50--use-mailmap::
51 Use mailmap file to map author and committer names and email
52 to canonical real names and email addresses. See
53 linkgit:git-shortlog[1].
54
2e88c266 55--full-diff::
f448e24e 56 Without this flag, "git log -p <path>..." shows commits that
2e88c266
JN
57 touch the specified paths, and diffs about the same specified
58 paths. With this, the full diff is shown for commits that touch
f448e24e 59 the specified paths; this means that "<path>..." limits only
2e88c266 60 commits, and doesn't limit diff for those commits.
b1c7946d
MG
61+
62Note that this affects all diff-based output types, e.g. those
63produced by --stat etc.
2e88c266 64
9fa3465d
MC
65--log-size::
66 Before the log message print out its size in bytes. Intended
2de9b711 67 mainly for porcelain tools consumption. If Git is unable to
9fa3465d
MC
68 produce a valid value size is set to zero.
69 Note that only message is considered, if also a diff is shown
70 its size is not included.
71
12da1d1f
TR
72-L <start>,<end>:<file>::
73 Trace the evolution of the line range given by "<start>,<end>"
74 within the <file>. You may not give any pathspec limiters.
75 This is currently limited to a walk starting from a single
76 revision, i.e., you may only give zero or one positive
77 revision arguments.
78
79<start> and <end> can take one of these forms:
80
81include::line-range-format.txt[]
82You can specify this option more than once.
83
84
85--full-line-diff::
86 Always print the interesting range even if the current commit
87 does not change any line of the range.
88
b1524ee0 89[\--] <path>...::
b15b5b10
TR
90 Show only commits that are enough to explain how the files
91 that match the specified paths came to be. See "History
92 Simplification" below for details and other simplification
93 modes.
94+
95To prevent confusion with options and branch names, paths may need to
96be prefixed with "\-- " to separate them from options or refnames.
e51c3b50 97
f98fd436
MG
98include::rev-list-options.txt[]
99
100include::pretty-formats.txt[]
101
4ded6916 102Common diff options
f98fd436 103-------------------
4ded6916
EB
104
105:git-log: 1
106include::diff-options.txt[]
331b51d2 107
272bd3cf 108include::diff-generate-patch.txt[]
331b51d2 109
bd663611
LT
110Examples
111--------
5d2fc913 112`git log --no-merges`::
bd663611
LT
113
114 Show the whole commit history, but skip any merges
115
5d2fc913 116`git log v2.6.12.. include/scsi drivers/scsi`::
bd663611
LT
117
118 Show all commits since version 'v2.6.12' that changed any file
119 in the include/scsi or drivers/scsi subdirectories
120
6cf378f0 121`git log --since="2 weeks ago" -- gitk`::
bd663611
LT
122
123 Show the changes during the last two weeks to the file 'gitk'.
124 The "--" is necessary to avoid confusion with the *branch* named
125 'gitk'
126
5d2fc913 127`git log --name-status release..test`::
e51c3b50
JH
128
129 Show the commits that are in the "test" branch but not yet
130 in the "release" branch, along with the list of paths
131 each commit modifies.
bd663611 132
5d2fc913 133`git log --follow builtin-rev-list.c`::
4f50f6a9
SW
134
135 Shows the commits that changed builtin-rev-list.c, including
136 those commits that occurred before the file was given its
137 present name.
138
5d2fc913 139`git log --branches --not --remotes=origin`::
d08bae7e
IL
140
141 Shows all commits that are in any of local branches but not in
0e615b25 142 any of remote-tracking branches for 'origin' (what you have that
d08bae7e
IL
143 origin doesn't).
144
5d2fc913 145`git log master --not --remotes=*/master`::
d08bae7e
IL
146
147 Shows all commits that are in local master but not in any remote
148 repository master branches.
149
5d2fc913 150`git log -p -m --first-parent`::
88d9d45d
PB
151
152 Shows the history including change diffs, but only from the
153 "main branch" perspective, skipping commits that come from merged
154 branches, and showing full diffs of changes introduced by the merges.
155 This makes sense only when following a strict policy of merging all
156 topic branches when staying on a single integration branch.
157
12da1d1f
TR
158git log -L '/int main/',/^}/:main.c::
159
160 Shows how the function `main()` in the file 'main.c' evolved
161 over time.
162
70c2a258
NTND
163`git log -3`::
164 Limits the number of commits to show to 3.
88d9d45d 165
5dc7bcc2
JH
166Discussion
167----------
168
169include::i18n.txt[]
170
59893a88
JN
171Configuration
172-------------
173
174See linkgit:git-config[1] for core variables and linkgit:git-diff[1]
175for settings related to diff generation.
176
177format.pretty::
178 Default for the `--format` option. (See "PRETTY FORMATS" above.)
179 Defaults to "medium".
180
181i18n.logOutputEncoding::
182 Encoding to use when displaying logs. (See "Discussion", above.)
183 Defaults to the value of `i18n.commitEncoding` if set, UTF-8
184 otherwise.
185
186log.date::
187 Default format for human-readable dates. (Compare the
188 `--date` option.) Defaults to "default", which means to write
189 dates like `Sat May 8 19:35:34 2010 -0500`.
190
191log.showroot::
192 If `false`, 'git log' and related commands will not treat the
193 initial commit as a big creation event. Any root commits in
194 `git log -p` output would be shown without a diff attached.
195 The default is `true`.
196
d5422b0c 197mailmap.*::
59893a88
JN
198 See linkgit:git-shortlog[1].
199
200notes.displayRef::
201 Which refs, in addition to the default set by `core.notesRef`
202 or 'GIT_NOTES_REF', to read notes from when showing commit
203 messages with the 'log' family of commands. See
204 linkgit:git-notes[1].
205+
206May be an unabbreviated ref name or a glob and may be specified
207multiple times. A warning will be issued for refs that do not exist,
208but a glob that does not match any refs is silently ignored.
209+
ab18b2c0 210This setting can be disabled by the `--no-notes` option,
59893a88 211overridden by the 'GIT_NOTES_DISPLAY_REF' environment variable,
ab18b2c0 212and overridden by the `--notes=<ref>` option.
5dc7bcc2 213
3f971fc4
JH
214GIT
215---
9e1f0a85 216Part of the linkgit:git[1] suite