git-log
(1)
Name
git-log - Show commit logs
Synopsis
git log [<options>] [<since>..<until>] [[--] <path>...]
Description
Git Manual GIT-LOG(1)
NAME
git-log - Show commit logs
SYNOPSIS
git log [<options>] [<since>..<until>] [[--] <path>...]
DESCRIPTION
Shows the commit logs.
The command takes options applicable to the git rev-list
command to control what is shown and how, and options
applicable to the git diff-* commands to control how the
changes each commit introduces are shown.
OPTIONS
-<n>
Limits the number of commits to show. Note that this is
a commit limiting option, see below.
<since>..<until>
Show only commits between the named two commits. When
either <since> or <until> is omitted, it defaults to
HEAD, i.e. the tip of the current branch. For a more
complete list of ways to spell <since> and <until>, see
gitrevisions(5).
--follow
Continue listing the history of a file beyond renames
(works only for a single file).
--no-decorate, --decorate[=short|full|no]
Print out the ref names of any commits that are shown.
If short is specified, the ref name prefixes
refs/heads/, refs/tags/ and refs/remotes/ will not be
printed. If full is specified, the full ref name
(including prefix) will be printed. The default option
is short.
--source
Print out the ref name given on the command line by
which each commit was reached.
--full-diff
Without this flag, "git log -p <path>..." shows commits
that touch the specified paths, and diffs about the same
specified paths. With this, the full diff is shown for
commits that touch the specified paths; this means that
"<path>..." limits only commits, and doesn't limit diff
for those commits.
Note that this affects all diff-based output types, e.g.
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those produced by --stat etc.
--log-size
Before the log message print out its size in bytes.
Intended mainly for porcelain tools consumption. If git
is unable to produce a valid value size is set to zero.
Note that only message is considered, if also a diff is
shown its size is not included.
[--] <path>...
Show only commits that are enough to explain how the
files that match the specified paths came to be. See
"History Simplification" below for details and other
simplification modes.
To prevent confusion with options and branch names,
paths may need to be prefixed with "-- " to separate
them from options or refnames.
Commit Limiting
Besides specifying a range of commits that should be listed
using the special notations explained in the description,
additional commit limiting may be applied. Note that they
are applied before commit ordering and formatting options,
such as --reverse.
-n number, --max-count=<number>
Limit the number of commits to output.
--skip=<number>
Skip number commits before starting to show the commit
output.
--since=<date>, --after=<date>
Show commits more recent than a specific date.
--until=<date>, --before=<date>
Show commits older than a specific date.
--author=<pattern>, --committer=<pattern>
Limit the commits output to ones with author/committer
header lines that match the specified pattern (regular
expression).
--grep=<pattern>
Limit the commits output to ones with log message that
matches the specified pattern (regular expression).
--all-match
Limit the commits output to ones that match all given
--grep, --author and --committer instead of ones that
match at least one.
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-i, --regexp-ignore-case
Match the regexp limiting patterns without regard to
letters case.
-E, --extended-regexp
Consider the limiting patterns to be extended regular
expressions instead of the default basic regular
expressions.
-F, --fixed-strings
Consider the limiting patterns to be fixed strings
(don't interpret pattern as a regular expression).
--remove-empty
Stop when a given path disappears from the tree.
--merges
Print only merge commits. This is exactly the same as
--min-parents=2.
--no-merges
Do not print commits with more than one parent. This is
exactly the same as --max-parents=1.
--min-parents=<number>, --max-parents=<number>,
--no-min-parents, --no-max-parents
Show only commits which have at least (or at most) that
many commits. In particular, --max-parents=1 is the same
as --no-merges, --min-parents=2 is the same as --merges.
--max-parents=0 gives all root commits and
--min-parents=3 all octopus merges.
--no-min-parents and --no-max-parents reset these limits
(to no limit) again. Equivalent forms are
--min-parents=0 (any commit has 0 or more parents) and
--max-parents=-1 (negative numbers denote no upper
limit).
--first-parent
Follow only the first parent commit upon seeing a merge
commit. This option can give a better overview when
viewing the evolution of a particular topic branch,
because merges into a topic branch tend to be only about
adjusting to updated upstream from time to time, and
this option allows you to ignore the individual commits
brought in to your history by such a merge.
--not
Reverses the meaning of the ^ prefix (or lack thereof)
for all following revision specifiers, up to the next
--not.
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--all
Pretend as if all the refs in refs/ are listed on the
command line as <commit>.
--branches[=<pattern>]
Pretend as if all the refs in refs/heads are listed on
the command line as <commit>. If <pattern> is given,
limit branches to ones matching given shell glob. If
pattern lacks ?, , or [, / at the end is implied.
--tags[=<pattern>]
Pretend as if all the refs in refs/tags are listed on
the command line as <commit>. If <pattern> is given,
limit tags to ones matching given shell glob. If pattern
lacks ?, , or [, / at the end is implied.
--remotes[=<pattern>]
Pretend as if all the refs in refs/remotes are listed on
the command line as <commit>. If <pattern> is given,
limit remote-tracking branches to ones matching given
shell glob. If pattern lacks ?, , or [, / at the end is
implied.
--glob=<glob-pattern>
Pretend as if all the refs matching shell glob
<glob-pattern> are listed on the command line as
<commit>. Leading refs/, is automatically prepended if
missing. If pattern lacks ?, , or [, / at the end is
implied.
--ignore-missing
Upon seeing an invalid object name in the input, pretend
as if the bad input was not given.
--bisect
Pretend as if the bad bisection ref refs/bisect/bad was
listed and as if it was followed by --not and the good
bisection refs refs/bisect/good-* on the command line.
--stdin
In addition to the <commit> listed on the command line,
read them from the standard input. If a -- separator is
seen, stop reading commits and start reading paths to
limit the result.
--cherry-mark
Like --cherry-pick (see below) but mark equivalent
commits with = rather than omitting them, and
inequivalent ones with +.
--cherry-pick
Omit any commit that introduces the same change as
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another commit on the "other side" when the set of
commits are limited with symmetric difference.
For example, if you have two branches, A and B, a usual
way to list all commits on only one side of them is with
--left-right (see the example below in the description
of the --left-right option). It however shows the
commits that were cherry-picked from the other branch
(for example, "3rd on b" may be cherry-picked from
branch A). With this option, such pairs of commits are
excluded from the output.
--left-only, --right-only
List only commits on the respective side of a symmetric
range, i.e. only those which would be marked < resp. >
by --left-right.
For example, --cherry-pick --right-only A...B omits
those commits from B which are in A or are
patch-equivalent to a commit in A. In other words, this
lists the + commits from git cherry A B. More precisely,
--cherry-pick --right-only --no-merges gives the exact
list.
--cherry
A synonym for --right-only --cherry-mark --no-merges;
useful to limit the output to the commits on our side
and mark those that have been applied to the other side
of a forked history with git log --cherry
upstream...mybranch, similar to git cherry upstream
mybranch.
-g, --walk-reflogs
Instead of walking the commit ancestry chain, walk
reflog entries from the most recent one to older ones.
When this option is used you cannot specify commits to
exclude (that is, ^commit, commit1..commit2, nor
commit1...commit2 notations cannot be used).
With --pretty format other than oneline (for obvious
reasons), this causes the output to have two extra lines
of information taken from the reflog. By default,
commit@{Nth} notation is used in the output. When the
starting commit is specified as commit@{now}, output
also uses commit@{timestamp} notation instead. Under
--pretty=oneline, the commit message is prefixed with
this information on the same line. This option cannot be
combined with --reverse. See also git-reflog(1).
--merge
After a failed merge, show refs that touch files having
a conflict and don't exist on all heads to merge.
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--boundary
Output uninteresting commits at the boundary, which are
usually not shown.
History Simplification
Sometimes you are only interested in parts of the history,
for example the commits modifying a particular <path>. But
there are two parts of History Simplification, one part is
selecting the commits and the other is how to do it, as
there are various strategies to simplify the history.
The following options select the commits to be shown:
<paths>
Commits modifying the given <paths> are selected.
--simplify-by-decoration
Commits that are referred by some branch or tag are
selected.
Note that extra commits can be shown to give a meaningful
history.
The following options affect the way the simplification is
performed:
Default mode
Simplifies the history to the simplest history
explaining the final state of the tree. Simplest because
it prunes some side branches if the end result is the
same (i.e. merging branches with the same content)
--full-history
Same as the default mode, but does not prune some
history.
--dense
Only the selected commits are shown, plus some to have a
meaningful history.
--sparse
All commits in the simplified history are shown.
--simplify-merges
Additional option to --full-history to remove some
needless merges from the resulting history, as there are
no selected commits contributing to this merge.
--ancestry-path
When given a range of commits to display (e.g.
commit1..commit2 or commit2 ^commit1), only display
commits that exist directly on the ancestry chain
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between the commit1 and commit2, i.e. commits that are
both descendants of commit1, and ancestors of commit2.
A more detailed explanation follows.
Suppose you specified foo as the <paths>. We shall call
commits that modify foo !TREESAME, and the rest TREESAME.
(In a diff filtered for foo, they look different and equal,
respectively.)
In the following, we will always refer to the same example
history to illustrate the differences between simplification
settings. We assume that you are filtering for a file foo in
this commit graph:
.-A---M---N---O---P
/ / / / /
I B C D E
\ / / / /
`-------------'
The horizontal line of history A---P is taken to be the
first parent of each merge. The commits are:
o I is the initial commit, in which foo exists with
contents "asdf", and a file quux exists with contents
"quux". Initial commits are compared to an empty tree,
so I is !TREESAME.
o In A, foo contains just "foo".
o B contains the same change as A. Its merge M is trivial
and hence TREESAME to all parents.
o C does not change foo, but its merge N changes it to
"foobar", so it is not TREESAME to any parent.
o D sets foo to "baz". Its merge O combines the strings
from N and D to "foobarbaz"; i.e., it is not TREESAME to
any parent.
o E changes quux to "xyzzy", and its merge P combines the
strings to "quux xyzzy". Despite appearing interesting,
P is TREESAME to all parents.
rev-list walks backwards through history, including or
excluding commits based on whether --full-history and/or
parent rewriting (via --parents or --children) are used. The
following settings are available.
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Default mode
Commits are included if they are not TREESAME to any
parent (though this can be changed, see --sparse below).
If the commit was a merge, and it was TREESAME to one
parent, follow only that parent. (Even if there are
several TREESAME parents, follow only one of them.)
Otherwise, follow all parents.
This results in:
.-A---N---O
/ / /
I---------D
Note how the rule to only follow the TREESAME parent, if
one is available, removed B from consideration entirely.
C was considered via N, but is TREESAME. Root commits
are compared to an empty tree, so I is !TREESAME.
Parent/child relations are only visible with --parents,
but that does not affect the commits selected in default
mode, so we have shown the parent lines.
--full-history without parent rewriting
This mode differs from the default in one point: always
follow all parents of a merge, even if it is TREESAME to
one of them. Even if more than one side of the merge has
commits that are included, this does not imply that the
merge itself is! In the example, we get
I A B N D O
P and M were excluded because they are TREESAME to a
parent. E, C and B were all walked, but only B was
!TREESAME, so the others do not appear.
Note that without parent rewriting, it is not really
possible to talk about the parent/child relationships
between the commits, so we show them disconnected.
--full-history with parent rewriting
Ordinary commits are only included if they are !TREESAME
(though this can be changed, see --sparse below).
Merges are always included. However, their parent list
is rewritten: Along each parent, prune away commits that
are not included themselves. This results in
.-A---M---N---O---P
/ / / / /
I B / D /
\ / / / /
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`-------------'
Compare to --full-history without rewriting above. Note
that E was pruned away because it is TREESAME, but the
parent list of P was rewritten to contain E's parent I.
The same happened for C and N. Note also that P was
included despite being TREESAME.
In addition to the above settings, you can change whether
TREESAME affects inclusion:
--dense
Commits that are walked are included if they are not
TREESAME to any parent.
--sparse
All commits that are walked are included.
Note that without --full-history, this still simplifies
merges: if one of the parents is TREESAME, we follow
only that one, so the other sides of the merge are never
walked.
--simplify-merges
First, build a history graph in the same way that
--full-history with parent rewriting does (see above).
Then simplify each commit `C` to its replacement C' in
the final history according to the following rules:
o Set `C'` to C.
o Replace each parent `P` of C' with its
simplification `P'`. In the process, drop parents
that are ancestors of other parents, and remove
duplicates.
o If after this parent rewriting, `C'` is a root or
merge commit (has zero or >1 parents), a boundary
commit, or !TREESAME, it remains. Otherwise, it is
replaced with its only parent.
The effect of this is best shown by way of comparing to
--full-history with parent rewriting. The example turns
into:
.-A---M---N---O
/ / /
I B D
\ / /
`---------'
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Note the major differences in N and P over
--full-history:
o N's parent list had I removed, because it is an
ancestor of the other parent M. Still, N remained
because it is !TREESAME.
o P's parent list similarly had I removed. P was
then removed completely, because it had one parent
and is TREESAME.
Finally, there is a fifth simplification mode available:
--ancestry-path
Limit the displayed commits to those directly on the
ancestry chain between the "from" and "to" commits in
the given commit range. I.e. only display commits that
are ancestor of the "to" commit, and descendants of the
"from" commit.
As an example use case, consider the following commit
history:
D---E-------F
/ \ \
B---C---G---H---I---J
/ \
A-------K---------------L--M
A regular D..M computes the set of commits that are
ancestors of M, but excludes the ones that are ancestors
of D. This is useful to see what happened to the history
leading to M since D, in the sense that "what does M
have that did not exist in D". The result in this
example would be all the commits, except A and B (and D
itself, of course).
When we want to find out what commits in M are
contaminated with the bug introduced by D and need
fixing, however, we might want to view only the subset
of D..M that are actually descendants of D, i.e.
excluding C and K. This is exactly what the
--ancestry-path option does. Applied to the D..M range,
it results in:
E-------F
\ \
G---H---I---J
\
L--M
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The --simplify-by-decoration option allows you to view only
the big picture of the topology of the history, by omitting
commits that are not referenced by tags. Commits are marked
as !TREESAME (in other words, kept after history
simplification rules described above) if (1) they are
referenced by tags, or (2) they change the contents of the
paths given on the command line. All other commits are
marked as TREESAME (subject to be simplified away).
Commit Ordering
By default, the commits are shown in reverse chronological
order.
--topo-order
This option makes them appear in topological order (i.e.
descendant commits are shown before their parents).
--date-order
This option is similar to --topo-order in the sense that
no parent comes before all of its children, but
otherwise things are still ordered in the commit
timestamp order.
--reverse
Output the commits in reverse order. Cannot be combined
with --walk-reflogs.
Object Traversal
These options are mostly targeted for packing of git
repositories.
--objects
Print the object IDs of any object referenced by the
listed commits. --objects foo ^bar thus means "send me
all object IDs which I need to download if I have the
commit object bar, but not foo".
--objects-edge
Similar to --objects, but also print the IDs of excluded
commits prefixed with a "-" character. This is used by
git-pack-objects(1) to build "thin" pack, which records
objects in deltified form based on objects contained in
these excluded commits to reduce network traffic.
--unpacked
Only useful with --objects; print the object IDs that
are not in packs.
--no-walk
Only show the given revs, but do not traverse their
ancestors.
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--do-walk
Overrides a previous --no-walk.
Commit Formatting
--pretty[=<format>], --format=<format>
Pretty-print the contents of the commit logs in a given
format, where <format> can be one of oneline, short,
medium, full, fuller, email, raw and format:<string>.
See the "PRETTY FORMATS" section for some additional
details for each format. When omitted, the format
defaults to medium.
Note: you can specify the default pretty format in the
repository configuration (see git-config(1)).
--abbrev-commit
Instead of showing the full 40-byte hexadecimal commit
object name, show only a partial prefix. Non default
number of digits can be specified with "--abbrev=<n>"
(which also modifies diff output, if it is displayed).
This should make "--pretty=oneline" a whole lot more
readable for people using 80-column terminals.
--no-abbrev-commit
Show the full 40-byte hexadecimal commit object name.
This negates --abbrev-commit and those options which
imply it such as "--oneline". It also overrides the
log.abbrevCommit variable.
--oneline
This is a shorthand for "--pretty=oneline
--abbrev-commit" used together.
--encoding[=<encoding>]
The commit objects record the encoding used for the log
message in their encoding header; this option can be
used to tell the command to re-code the commit log
message in the encoding preferred by the user. For non
plumbing commands this defaults to UTF-8.
--notes[=<ref>]
Show the notes (see git-notes(1)) that annotate the
commit, when showing the commit log message. This is the
default for git log, git show and git whatchanged
commands when there is no --pretty, --format nor
--oneline option given on the command line.
By default, the notes shown are from the notes refs
listed in the core.notesRef and notes.displayRef
variables (or corresponding environment overrides). See
git-config(1) for more details.
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With an optional <ref> argument, show this notes ref
instead of the default notes ref(s). The ref is taken to
be in refs/notes/ if it is not qualified.
Multiple --notes options can be combined to control
which notes are being displayed. Examples: "--notes=foo"
will show only notes from "refs/notes/foo"; "--notes=foo
--notes" will show both notes from "refs/notes/foo" and
from the default notes ref(s).
--no-notes
Do not show notes. This negates the above --notes
option, by resetting the list of notes refs from which
notes are shown. Options are parsed in the order given
on the command line, so e.g. "--notes --notes=foo
--no-notes --notes=bar" will only show notes from
"refs/notes/bar".
--show-notes[=<ref>], --[no-]standard-notes
These options are deprecated. Use the above
--notes/--no-notes options instead.
--relative-date
Synonym for --date=relative.
--date=(relative|local|default|iso|rfc|short|raw)
Only takes effect for dates shown in human-readable
format, such as when using "--pretty". log.date config
variable sets a default value for log command's --date
option.
--date=relative shows dates relative to the current
time, e.g. "2 hours ago".
--date=local shows timestamps in user's local timezone.
--date=iso (or --date=iso8601) shows timestamps in ISO
8601 format.
--date=rfc (or --date=rfc2822) shows timestamps in RFC
2822 format, often found in E-mail messages.
--date=short shows only date but not time, in YYYY-MM-DD
format.
--date=raw shows the date in the internal raw git format
%s %z format.
--date=default shows timestamps in the original timezone
(either committer's or author's).
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--parents
Print also the parents of the commit (in the form
"commit parent..."). Also enables parent rewriting, see
History Simplification below.
--children
Print also the children of the commit (in the form
"commit child..."). Also enables parent rewriting, see
History Simplification below.
--left-right
Mark which side of a symmetric diff a commit is
reachable from. Commits from the left side are prefixed
with < and those from the right with >. If combined with
--boundary, those commits are prefixed with -.
For example, if you have this topology:
y---b---b branch B
/ \ /
/ .
/ / \
o---x---a---a branch A
you would get an output like this:
$ git rev-list --left-right --boundary --pretty=oneline A...B
>bbbbbbb... 3rd on b
>bbbbbbb... 2nd on b
<aaaaaaa... 3rd on a
<aaaaaaa... 2nd on a
-yyyyyyy... 1st on b
-xxxxxxx... 1st on a
--graph
Draw a text-based graphical representation of the commit
history on the left hand side of the output. This may
cause extra lines to be printed in between commits, in
order for the graph history to be drawn properly.
This enables parent rewriting, see History
Simplification below.
This implies the --topo-order option by default, but the
--date-order option may also be specified.
Diff Formatting
Below are listed options that control the formatting of diff
output. Some of them are specific to git-rev-list(1),
however other diff options may be given. See git-diff-
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files(1) for more options.
-c
With this option, diff output for a merge commit shows
the differences from each of the parents to the merge
result simultaneously instead of showing pairwise diff
between a parent and the result one at a time.
Furthermore, it lists only files which were modified
from all parents.
--cc
This flag implies the -c options and further compresses
the patch output by omitting uninteresting hunks whose
contents in the parents have only two variants and the
merge result picks one of them without modification.
-m
This flag makes the merge commits show the full diff
like regular commits; for each merge parent, a separate
log entry and diff is generated. An exception is that
only diff against the first parent is shown when
--first-parent option is given; in that case, the output
represents the changes the merge brought into the
then-current branch.
-r
Show recursive diffs.
-t
Show the tree objects in the diff output. This implies
-r.
-s
Suppress diff output.
PRETTY FORMATS
If the commit is a merge, and if the pretty-format is not
oneline, email or raw, an additional line is inserted before
the Author: line. This line begins with "Merge: " and the
sha1s of ancestral commits are printed, separated by spaces.
Note that the listed commits may not necessarily be the list
of the direct parent commits if you have limited your view
of history: for example, if you are only interested in
changes related to a certain directory or file.
There are several built-in formats, and you can define
additional formats by setting a pretty.<name> config option
to either another format name, or a format: string, as
described below (see git-config(1)). Here are the details of
the built-in formats:
o oneline
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<sha1> <title line>
This is designed to be as compact as possible.
o short
commit <sha1>
Author: <author>
<title line>
o medium
commit <sha1>
Author: <author>
Date: <author date>
<title line>
<full commit message>
o full
commit <sha1>
Author: <author>
Commit: <committer>
<title line>
<full commit message>
o fuller
commit <sha1>
Author: <author>
AuthorDate: <author date>
Commit: <committer>
CommitDate: <committer date>
<title line>
<full commit message>
o email
From <sha1> <date>
From: <author>
Date: <author date>
Subject: [PATCH] <title line>
<full commit message>
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o raw
The raw format shows the entire commit exactly as stored
in the commit object. Notably, the SHA1s are displayed
in full, regardless of whether --abbrev or --no-abbrev
are used, and parents information show the true parent
commits, without taking grafts nor history
simplification into account.
o format:<string>
The format:<string> format allows you to specify which
information you want to show. It works a little bit like
printf format, with the notable exception that you get a
newline with %n instead of \n.
E.g, format:"The author of %h was %an, %ar%nThe title
was >>%s<<%n" would show something like this:
The author of fe6e0ee was Junio C Hamano, 23 hours ago
The title was >>t4119: test autocomputing -p<n> for traditional diff input.<<
The placeholders are:
o %H: commit hash
o %h: abbreviated commit hash
o %T: tree hash
o %t: abbreviated tree hash
o %P: parent hashes
o %p: abbreviated parent hashes
o %an: author name
o %aN: author name (respecting .mailmap, see git-
shortlog(1) or git-blame(1))
o %ae: author email
o %aE: author email (respecting .mailmap, see git-
shortlog(1) or git-blame(1))
o %ad: author date (format respects --date= option)
o %aD: author date, RFC2822 style
o %ar: author date, relative
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o %at: author date, UNIX timestamp
o %ai: author date, ISO 8601 format
o %cn: committer name
o %cN: committer name (respecting .mailmap, see git-
shortlog(1) or git-blame(1))
o %ce: committer email
o %cE: committer email (respecting .mailmap, see git-
shortlog(1) or git-blame(1))
o %cd: committer date
o %cD: committer date, RFC2822 style
o %cr: committer date, relative
o %ct: committer date, UNIX timestamp
o %ci: committer date, ISO 8601 format
o %d: ref names, like the --decorate option of git-
log(1)
o %e: encoding
o %s: subject
o %f: sanitized subject line, suitable for a filename
o %b: body
o %B: raw body (unwrapped subject and body)
o %N: commit notes
o %gD: reflog selector, e.g., refs/stash@{1}
o %gd: shortened reflog selector, e.g., stash@{1}
o %gn: reflog identity name
o %gN: reflog identity name (respecting .mailmap, see
git-shortlog(1) or git-blame(1))
o %ge: reflog identity email
o %gE: reflog identity email (respecting .mailmap,
see git-shortlog(1) or git-blame(1))
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o %gs: reflog subject
o %Cred: switch color to red
o %Cgreen: switch color to green
o %Cblue: switch color to blue
o %Creset: reset color
o %C(...): color specification, as described in
color.branch.* config option
o %m: left, right or boundary mark
o %n: newline
o %%: a raw %
o %x00: print a byte from a hex code
o %w([<w>[,<i1>[,<i2>]]]): switch line wrapping, like
the -w option of git-shortlog(1).
Note
Some placeholders may depend on other options given to
the revision traversal engine. For example, the %g*
reflog options will insert an empty string unless we are
traversing reflog entries (e.g., by git log -g). The %d
placeholder will use the "short" decoration format if
--decorate was not already provided on the command line.
If you add a + (plus sign) after % of a placeholder, a
line-feed is inserted immediately before the expansion if
and only if the placeholder expands to a non-empty string.
If you add a - (minus sign) after % of a placeholder,
line-feeds that immediately precede the expansion are
deleted if and only if the placeholder expands to an empty
string.
If you add a ` ` (space) after % of a placeholder, a space
is inserted immediately before the expansion if and only if
the placeholder expands to a non-empty string.
o tformat:
The tformat: format works exactly like format:, except
that it provides "terminator" semantics instead of
"separator" semantics. In other words, each commit has
the message terminator character (usually a newline)
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appended, rather than a separator placed between
entries. This means that the final entry of a
single-line format will be properly terminated with a
new line, just as the "oneline" format does. For
example:
$ git log -2 --pretty=format:%h 4da45bef \
| perl -pe '$_ .= " -- NO NEWLINE\n" unless /\n/'
4da45be
7134973 -- NO NEWLINE
$ git log -2 --pretty=tformat:%h 4da45bef \
| perl -pe '$_ .= " -- NO NEWLINE\n" unless /\n/'
4da45be
7134973
In addition, any unrecognized string that has a % in it
is interpreted as if it has tformat: in front of it. For
example, these two are equivalent:
$ git log -2 --pretty=tformat:%h 4da45bef
$ git log -2 --pretty=%h 4da45bef
COMMON DIFF OPTIONS
-p, -u, --patch
Generate patch (see section on generating patches).
-U<n>, --unified=<n>
Generate diffs with <n> lines of context instead of the
usual three. Implies -p.
--raw
Generate the raw format.
--patch-with-raw
Synonym for -p --raw.
--minimal
Spend extra time to make sure the smallest possible diff
is produced.
--patience
Generate a diff using the "patience diff" algorithm.
--stat[=<width>[,<name-width>[,<count>]]]
Generate a diffstat. You can override the default output
width for 80-column terminal by --stat=<width>. The
width of the filename part can be controlled by giving
another width to it separated by a comma. By giving a
third parameter <count>, you can limit the output to the
first <count> lines, followed by ... if there are more.
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These parameters can also be set individually with
--stat-width=<width>, --stat-name-width=<name-width> and
--stat-count=<count>.
--numstat
Similar to --stat, but shows number of added and deleted
lines in decimal notation and pathname without
abbreviation, to make it more machine friendly. For
binary files, outputs two - instead of saying 0 0.
--shortstat
Output only the last line of the --stat format
containing total number of modified files, as well as
number of added and deleted lines.
--dirstat[=<param1,param2,...>]
Output the distribution of relative amount of changes
for each sub-directory. The behavior of --dirstat can be
customized by passing it a comma separated list of
parameters. The defaults are controlled by the
diff.dirstat configuration variable (see git-config(1)).
The following parameters are available:
changes
Compute the dirstat numbers by counting the lines
that have been removed from the source, or added to
the destination. This ignores the amount of pure
code movements within a file. In other words,
rearranging lines in a file is not counted as much
as other changes. This is the default behavior when
no parameter is given.
lines
Compute the dirstat numbers by doing the regular
line-based diff analysis, and summing the
removed/added line counts. (For binary files, count
64-byte chunks instead, since binary files have no
natural concept of lines). This is a more expensive
--dirstat behavior than the changes behavior, but it
does count rearranged lines within a file as much as
other changes. The resulting output is consistent
with what you get from the other --*stat options.
files
Compute the dirstat numbers by counting the number
of files changed. Each changed file counts equally
in the dirstat analysis. This is the computationally
cheapest --dirstat behavior, since it does not have
to look at the file contents at all.
cumulative
Count changes in a child directory for the parent
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directory as well. Note that when using cumulative,
the sum of the percentages reported may exceed 100%.
The default (non-cumulative) behavior can be
specified with the noncumulative parameter.
<limit>
An integer parameter specifies a cut-off percent (3%
by default). Directories contributing less than this
percentage of the changes are not shown in the
output.
Example: The following will count changed files, while
ignoring directories with less than 10% of the total
amount of changed files, and accumulating child
directory counts in the parent directories:
--dirstat=files,10,cumulative.
--summary
Output a condensed summary of extended header
information such as creations, renames and mode changes.
--patch-with-stat
Synonym for -p --stat.
-z
Separate the commits with NULs instead of with new
newlines.
Also, when --raw or --numstat has been given, do not
munge pathnames and use NULs as output field
terminators.
Without this option, each pathname output will have TAB,
LF, double quotes, and backslash characters replaced
with \t, \n, \", and \\, respectively, and the pathname
will be enclosed in double quotes if any of those
replacements occurred.
--name-only
Show only names of changed files.
--name-status
Show only names and status of changed files. See the
description of the --diff-filter option on what the
status letters mean.
--submodule[=<format>]
Chose the output format for submodule differences.
<format> can be one of short and log. short just shows
pairs of commit names, this format is used when this
option is not given. log is the default value for this
option and lists the commits in that commit range like
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the summary option of git-submodule(1) does.
--color[=<when>]
Show colored diff. The value must be always (the default
for <when>), never, or auto. The default value is never.
--no-color
Turn off colored diff. It is the same as --color=never.
--word-diff[=<mode>]
Show a word diff, using the <mode> to delimit changed
words. By default, words are delimited by whitespace;
see --word-diff-regex below. The <mode> defaults to
plain, and must be one of:
color
Highlight changed words using only colors. Implies
--color.
plain
Show words as [-removed-] and {added}. Makes no
attempts to escape the delimiters if they appear in
the input, so the output may be ambiguous.
porcelain
Use a special line-based format intended for script
consumption. Added/removed/unchanged runs are
printed in the usual unified diff format, starting
with a +/-/` ` character at the beginning of the
line and extending to the end of the line. Newlines
in the input are represented by a tilde ~ on a line
of its own.
none
Disable word diff again.
Note that despite the name of the first mode, color is
used to highlight the changed parts in all modes if
enabled.
--word-diff-regex=<regex>
Use <regex> to decide what a word is, instead of
considering runs of non-whitespace to be a word. Also
implies --word-diff unless it was already enabled.
Every non-overlapping match of the <regex> is considered
a word. Anything between these matches is considered
whitespace and ignored(!) for the purposes of finding
differences. You may want to append |[^[:space:]] to
your regular expression to make sure that it matches all
non-whitespace characters. A match that contains a
newline is silently truncated(!) at the newline.
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The regex can also be set via a diff driver or
configuration option, see gitattributes(1) or git-
config(1). Giving it explicitly overrides any diff
driver or configuration setting. Diff drivers override
configuration settings.
--color-words[=<regex>]
Equivalent to --word-diff=color plus (if a regex was
specified) --word-diff-regex=<regex>.
--no-renames
Turn off rename detection, even when the configuration
file gives the default to do so.
--check
Warn if changes introduce whitespace errors. What are
considered whitespace errors is controlled by
core.whitespace configuration. By default, trailing
whitespaces (including lines that solely consist of
whitespaces) and a space character that is immediately
followed by a tab character inside the initial indent of
the line are considered whitespace errors. Exits with
non-zero status if problems are found. Not compatible
with --exit-code.
--full-index
Instead of the first handful of characters, show the
full pre- and post-image blob object names on the
"index" line when generating patch format output.
--binary
In addition to --full-index, output a binary diff that
can be applied with git-apply.
--abbrev[=<n>]
Instead of showing the full 40-byte hexadecimal object
name in diff-raw format output and diff-tree header
lines, show only a partial prefix. This is independent
of the --full-index option above, which controls the
diff-patch output format. Non default number of digits
can be specified with --abbrev=<n>.
-B[<n>][/<m>], --break-rewrites[=[<n>][/<m>]]
Break complete rewrite changes into pairs of delete and
create. This serves two purposes:
It affects the way a change that amounts to a total
rewrite of a file not as a series of deletion and
insertion mixed together with a very few lines that
happen to match textually as the context, but as a
single deletion of everything old followed by a single
insertion of everything new, and the number m controls
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this aspect of the -B option (defaults to 60%). -B/70%
specifies that less than 30% of the original should
remain in the result for git to consider it a total
rewrite (i.e. otherwise the resulting patch will be a
series of deletion and insertion mixed together with
context lines).
When used with -M, a totally-rewritten file is also
considered as the source of a rename (usually -M only
considers a file that disappeared as the source of a
rename), and the number n controls this aspect of the -B
option (defaults to 50%). -B20% specifies that a change
with addition and deletion compared to 20% or more of
the file's size are eligible for being picked up as a
possible source of a rename to another file.
-M[<n>], --find-renames[=<n>]
If generating diffs, detect and report renames for each
commit. For following files across renames while
traversing history, see --follow. If n is specified, it
is a threshold on the similarity index (i.e. amount of
addition/deletions compared to the file's size). For
example, -M90% means git should consider a delete/add
pair to be a rename if more than 90% of the file hasn't
changed.
-C[<n>], --find-copies[=<n>]
Detect copies as well as renames. See also
--find-copies-harder. If n is specified, it has the same
meaning as for -M<n>.
--find-copies-harder
For performance reasons, by default, -C option finds
copies only if the original file of the copy was
modified in the same changeset. This flag makes the
command inspect unmodified files as candidates for the
source of copy. This is a very expensive operation for
large projects, so use it with caution. Giving more than
one -C option has the same effect.
-D, --irreversible-delete
Omit the preimage for deletes, i.e. print only the
header but not the diff between the preimage and
/dev/null. The resulting patch is not meant to be
applied with patch nor git apply; this is solely for
people who want to just concentrate on reviewing the
text after the change. In addition, the output obviously
lack enough information to apply such a patch in
reverse, even manually, hence the name of the option.
When used together with -B, omit also the preimage in
the deletion part of a delete/create pair.
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-l<num>
The -M and -C options require O(n^2) processing time
where n is the number of potential rename/copy targets.
This option prevents rename/copy detection from running
if the number of rename/copy targets exceeds the
specified number.
--diff-filter=[(A|C|D|M|R|T|U|X|B)...[*]]
Select only files that are Added (A), Copied (C),
Deleted (D), Modified (M), Renamed (R), have their type
(i.e. regular file, symlink, submodule, ...) changed
(T), are Unmerged (U), are Unknown (X), or have had
their pairing Broken (B). Any combination of the filter
characters (including none) can be used. When *
(All-or-none) is added to the combination, all paths are
selected if there is any file that matches other
criteria in the comparison; if there is no file that
matches other criteria, nothing is selected.
-S<string>
Look for differences that introduce or remove an
instance of <string>. Note that this is different than
the string simply appearing in diff output; see the
pickaxe entry in gitdiffcore(5) for more details.
-G<regex>
Look for differences whose added or removed line matches
the given <regex>.
--pickaxe-all
When -S or -G finds a change, show all the changes in
that changeset, not just the files that contain the
change in <string>.
--pickaxe-regex
Make the <string> not a plain string but an extended
POSIX regex to match.
-O<orderfile>
Output the patch in the order specified in the
<orderfile>, which has one shell glob pattern per line.
-R
Swap two inputs; that is, show differences from index or
on-disk file to tree contents.
--relative[=<path>]
When run from a subdirectory of the project, it can be
told to exclude changes outside the directory and show
pathnames relative to it with this option. When you are
not in a subdirectory (e.g. in a bare repository), you
can name which subdirectory to make the output relative
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to by giving a <path> as an argument.
-a, --text
Treat all files as text.
--ignore-space-at-eol
Ignore changes in whitespace at EOL.
-b, --ignore-space-change
Ignore changes in amount of whitespace. This ignores
whitespace at line end, and considers all other
sequences of one or more whitespace characters to be
equivalent.
-w, --ignore-all-space
Ignore whitespace when comparing lines. This ignores
differences even if one line has whitespace where the
other line has none.
--inter-hunk-context=<lines>
Show the context between diff hunks, up to the specified
number of lines, thereby fusing hunks that are close to
each other.
-W, --function-context
Show whole surrounding functions of changes.
--ext-diff
Allow an external diff helper to be executed. If you set
an external diff driver with gitattributes(4), you need
to use this option with git-log(1) and friends.
--no-ext-diff
Disallow external diff drivers.
--textconv, --no-textconv
Allow (or disallow) external text conversion filters to
be run when comparing binary files. See gitattributes(4)
for details. Because textconv filters are typically a
one-way conversion, the resulting diff is suitable for
human consumption, but cannot be applied. For this
reason, textconv filters are enabled by default only for
git-diff(1) and git-log(1), but not for git-format-
patch(1) or diff plumbing commands.
--ignore-submodules[=<when>]
Ignore changes to submodules in the diff generation.
<when> can be either "none", "untracked", "dirty" or
"all", which is the default Using "none" will consider
the submodule modified when it either contains untracked
or modified files or its HEAD differs from the commit
recorded in the superproject and can be used to override
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any settings of the ignore option in git-config(1) or
gitmodules(4). When "untracked" is used submodules are
not considered dirty when they only contain untracked
content (but they are still scanned for modified
content). Using "dirty" ignores all changes to the work
tree of submodules, only changes to the commits stored
in the superproject are shown (this was the behavior
until 1.7.0). Using "all" hides all changes to
submodules.
--src-prefix=<prefix>
Show the given source prefix instead of "a/".
--dst-prefix=<prefix>
Show the given destination prefix instead of "b/".
--no-prefix
Do not show any source or destination prefix.
For more detailed explanation on these common options, see
also gitdiffcore(5).
GENERATING PATCHES WITH -P
When "git-diff-index", "git-diff-tree", or "git-diff-files"
are run with a -p option, "git diff" without the --raw
option, or "git log" with the "-p" option, they do not
produce the output described above; instead they produce a
patch file. You can customize the creation of such patches
via the GIT_EXTERNAL_DIFF and the GIT_DIFF_OPTS environment
variables.
What the -p option produces is slightly different from the
traditional diff format:
1. It is preceded with a "git diff" header that looks like
this:
diff --git a/file1 b/file2
The a/ and b/ filenames are the same unless rename/copy
is involved. Especially, even for a creation or a
deletion, /dev/null is not used in place of the a/ or b/
filenames.
When rename/copy is involved, file1 and file2 show the
name of the source file of the rename/copy and the name
of the file that rename/copy produces, respectively.
2. It is followed by one or more extended header lines:
old mode <mode>
new mode <mode>
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deleted file mode <mode>
new file mode <mode>
copy from <path>
copy to <path>
rename from <path>
rename to <path>
similarity index <number>
dissimilarity index <number>
index <hash>..<hash> <mode>
File modes are printed as 6-digit octal numbers
including the file type and file permission bits.
Path names in extended headers do not include the a/ and
b/ prefixes.
The similarity index is the percentage of unchanged
lines, and the dissimilarity index is the percentage of
changed lines. It is a rounded down integer, followed by
a percent sign. The similarity index value of 100% is
thus reserved for two equal files, while 100%
dissimilarity means that no line from the old file made
it into the new one.
The index line includes the SHA-1 checksum before and
after the change. The <mode> is included if the file
mode does not change; otherwise, separate lines indicate
the old and the new mode.
3. TAB, LF, double quote and backslash characters in
pathnames are represented as \t, \n, \" and \\,
respectively. If there is need for such substitution
then the whole pathname is put in double quotes.
4. All the file1 files in the output refer to files before
the commit, and all the file2 files refer to files after
the commit. It is incorrect to apply each change to each
file sequentially. For example, this patch will swap a
and b:
diff --git a/a b/b
rename from a
rename to b
diff --git a/b b/a
rename from b
rename to a
COMBINED DIFF FORMAT
Any diff-generating command can take the `-c` or --cc option
to produce a combined diff when showing a merge. This is the
default format when showing merges with git-diff(1) or git-
show(1). Note also that you can give the `-m' option to any
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of these commands to force generation of diffs with
individual parents of a merge.
A combined diff format looks like this:
diff --combined describe.c
index fabadb8,cc95eb0..4866510
--- a/describe.c
+++ b/describe.c
@@@ -98,20 -98,12 +98,20 @@@
return (a_date > b_date) ? -1 : (a_date == b_date) ? 0 : 1;
}
- static void describe(char *arg)
-static void describe(struct commit *cmit, int last_one)
++static void describe(char *arg, int last_one)
{
+ unsigned char sha1[20];
+ struct commit *cmit;
struct commit_list *list;
static int initialized = 0;
struct commit_name *n;
+ if (get_sha1(arg, sha1) < 0)
+ usage(describe_usage);
+ cmit = lookup_commit_reference(sha1);
+ if (!cmit)
+ usage(describe_usage);
+
if (!initialized) {
initialized = 1;
for_each_ref(get_name);
1. It is preceded with a "git diff" header, that looks like
this (when -c option is used):
diff --combined file
or like this (when --cc option is used):
diff --cc file
2. It is followed by one or more extended header lines
(this example shows a merge with two parents):
index <hash>,<hash>..<hash>
mode <mode>,<mode>..<mode>
new file mode <mode>
deleted file mode <mode>,<mode>
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The mode <mode>,<mode>..<mode> line appears only if at
least one of the <mode> is different from the rest.
Extended headers with information about detected
contents movement (renames and copying detection) are
designed to work with diff of two <tree-ish> and are not
used by combined diff format.
3. It is followed by two-line from-file/to-file header
--- a/file
+++ b/file
Similar to two-line header for traditional unified diff
format, /dev/null is used to signal created or deleted
files.
4. Chunk header format is modified to prevent people from
accidentally feeding it to patch -p1. Combined diff
format was created for review of merge commit changes,
and was not meant for apply. The change is similar to
the change in the extended index header:
@@@ <from-file-range> <from-file-range> <to-file-range> @@@
There are (number of parents + 1) @ characters in the
chunk header for combined diff format.
Unlike the traditional unified diff format, which shows two
files A and B with a single column that has - (minus --
appears in A but removed in B), + (plus -- missing in A but
added to B), or " " (space -- unchanged) prefix, this format
compares two or more files file1, file2,... with one file X,
and shows how X differs from each of fileN. One column for
each of fileN is prepended to the output line to note how
X's line is different from it.
A - character in the column N means that the line appears in
fileN but it does not appear in the result. A + character in
the column N means that the line appears in the result, and
fileN does not have that line (in other words, the line was
added, from the point of view of that parent).
In the above example output, the function signature was
changed from both files (hence two - removals from both
file1 and file2, plus ++ to mean one line that was added
does not appear in either file1 nor file2). Also eight other
lines are the same from file1 but do not appear in file2
(hence prefixed with +).
When shown by git diff-tree -c, it compares the parents of a
merge commit with the merge result (i.e. file1..fileN are
the parents). When shown by git diff-files -c, it compares
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the two unresolved merge parents with the working tree file
(i.e. file1 is stage 2 aka "our version", file2 is stage 3
aka "their version").
EXAMPLES
git log --no-merges
Show the whole commit history, but skip any merges
git log v2.6.12.. include/scsi drivers/scsi
Show all commits since version v2.6.12 that changed any
file in the include/scsi or drivers/scsi subdirectories
git log --since="2 weeks ago" -- gitk
Show the changes during the last two weeks to the file
gitk. The "--" is necessary to avoid confusion with the
branch named gitk
git log --name-status release..test
Show the commits that are in the "test" branch but not
yet in the "release" branch, along with the list of
paths each commit modifies.
git log --follow builtin-rev-list.c
Shows the commits that changed builtin-rev-list.c,
including those commits that occurred before the file
was given its present name.
git log --branches --not --remotes=origin
Shows all commits that are in any of local branches but
not in any of remote-tracking branches for origin (what
you have that origin doesn't).
git log master --not --remotes=*/master
Shows all commits that are in local master but not in
any remote repository master branches.
git log -p -m --first-parent
Shows the history including change diffs, but only from
the "main branch" perspective, skipping commits that
come from merged branches, and showing full diffs of
changes introduced by the merges. This makes sense only
when following a strict policy of merging all topic
branches when staying on a single integration branch.
DISCUSSION
At the core level, git is character encoding agnostic.
o The pathnames recorded in the index and in the tree
objects are treated as uninterpreted sequences of
non-NUL bytes. What readdir(2) returns are what are
recorded and compared with the data git keeps track of,
which in turn are expected to be what lstat(2) and
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creat(2) accepts. There is no such thing as pathname
encoding translation.
o The contents of the blob objects are uninterpreted
sequences of bytes. There is no encoding translation at
the core level.
o The commit log messages are uninterpreted sequences of
non-NUL bytes.
Although we encourage that the commit log messages are
encoded in UTF-8, both the core and git Porcelain are
designed not to force UTF-8 on projects. If all participants
of a particular project find it more convenient to use
legacy encodings, git does not forbid it. However, there are
a few things to keep in mind.
1. git commit and git commit-tree issues a warning if the
commit log message given to it does not look like a
valid UTF-8 string, unless you explicitly say your
project uses a legacy encoding. The way to say this is
to have i18n.commitencoding in .git/config file, like
this:
[i18n]
commitencoding = ISO-8859-1
Commit objects created with the above setting record the
value of i18n.commitencoding in its encoding header.
This is to help other people who look at them later.
Lack of this header implies that the commit log message
is encoded in UTF-8.
2. git log, git show, git blame and friends look at the
encoding header of a commit object, and try to re-code
the log message into UTF-8 unless otherwise specified.
You can specify the desired output encoding with
i18n.logoutputencoding in .git/config file, like this:
[i18n]
logoutputencoding = ISO-8859-1
If you do not have this configuration variable, the
value of i18n.commitencoding is used instead.
Note that we deliberately chose not to re-code the commit
log message when a commit is made to force UTF-8 at the
commit object level, because re-coding to UTF-8 is not
necessarily a reversible operation.
CONFIGURATION
See git-config(1) for core variables and git-diff(1) for
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Git Manual GIT-LOG(1)
settings related to diff generation.
format.pretty
Default for the --format option. (See "PRETTY FORMATS"
above.) Defaults to "medium".
i18n.logOutputEncoding
Encoding to use when displaying logs. (See "Discussion",
above.) Defaults to the value of i18n.commitEncoding if
set, UTF-8 otherwise.
log.date
Default format for human-readable dates. (Compare the
--date option.) Defaults to "default", which means to
write dates like Sat May 8 19:35:34 2010 -0500.
log.showroot
If false, git log and related commands will not treat
the initial commit as a big creation event. Any root
commits in git log -p output would be shown without a
diff attached. The default is true.
mailmap.file
See git-shortlog(1).
notes.displayRef
Which refs, in addition to the default set by
core.notesRef or GIT_NOTES_REF, to read notes from when
showing commit messages with the log family of commands.
See git-notes(1).
May be an unabbreviated ref name or a glob and may be
specified multiple times. A warning will be issued for
refs that do not exist, but a glob that does not match
any refs is silently ignored.
This setting can be disabled by the --no-notes option,
overridden by the GIT_NOTES_DISPLAY_REF environment
variable, and overridden by the --notes=<ref> option.
GIT
Part of the git(1) suite
ATTRIBUTES
See attributes(5) for descriptions of the following
attributes:
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Git Manual GIT-LOG(1)
+---------------+--------------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+--------------------------+
|Availability | developer/versioning/git |
+---------------+--------------------------+
|Stability | Uncommitted |
+---------------+--------------------------+
NOTES
This software was built from source available at
https://java.net/projects/solaris-userland. The original
community source was downloaded from http://git-
core.googlecode.com/files/git-1.7.9.2.tar.gz
Further information about this software can be found on the
open source community website at http://git-scm.com/.
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