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NAMEgit-show - Show various types of objects SYNOPSISgit show [<options>] [<object>...] DESCRIPTIONShows one or more objects (blobs, trees, tags and commits). For commits it shows the log message and textual diff. It also presents the merge commit in a special format as produced by git diff-tree --cc. For tags, it shows the tag message and the referenced objects. For trees, it shows the names (equivalent to git ls-tree with --name-only). For plain blobs, it shows the plain contents. Some options that git log command understands can be used to control how the changes the commit introduces are shown. This manual page describes only the most frequently used options. OPTIONS<object>... The names of objects to show (defaults to HEAD).
For a more complete list of ways to spell object names, see "SPECIFYING
REVISIONS" section in gitrevisions(7).
--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, reference,
email, raw, format:<string> and
tformat:<string>. When <format> is none of the
above, and has %placeholder in it, it acts as if
--pretty=tformat:<format> were given.
See the "PRETTY FORMATS" section for some additional details for each format. When =<format> part is omitted, it 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 a prefix that names the object uniquely.
"--abbrev=<n>" (which also modifies diff output, if it is
displayed) option can be used to specify the minimum length of the prefix.
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, either explicit or implied by other
options such as "--oneline". It also overrides the
log.abbrevCommit variable.
--oneline This is a shorthand for "--pretty=oneline
--abbrev-commit" used together.
--encoding=<encoding> Commit objects record the character 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. Note that if an object
claims to be encoded in X and we are outputting in X, we will
output the object verbatim; this means that invalid sequences in the original
commit may be copied to the output. Likewise, if iconv(3) fails to convert the
commit, we will quietly output the original object verbatim.
--expand-tabs=<n>, --expand-tabs, --no-expand-tabs Perform a tab expansion (replace each tab with enough
spaces to fill to the next display column that is a multiple of
<n>) in the log message before showing it in the output.
--expand-tabs is a short-hand for --expand-tabs=8, and
--no-expand-tabs is a short-hand for --expand-tabs=0, which
disables tab expansion.
By default, tabs are expanded in pretty formats that indent the log message by 4 spaces (i.e. medium, which is the default, full, and fuller). --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,
or --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. With an optional <ref> argument, use the ref to find the notes to display. The ref can specify the full refname when it begins with refs/notes/; when it begins with notes/, refs/ and otherwise refs/notes/ is prefixed to form the full name of the ref. 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-by-default Show the default notes unless options for displaying
specific notes are given.
--show-notes[=<ref>], --[no-]standard-notes These options are deprecated. Use the above
--notes/--no-notes options instead.
--show-signature Check the validity of a signed commit object by passing
the signature to gpg --verify and show the output.
PRETTY FORMATSIf 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 hashes 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: •oneline
<hash> <title-line> This is designed to be as compact as possible. •short
commit <hash> Author: <author> <title-line> •medium
commit <hash> Author: <author> Date: <author-date> <title-line> <full-commit-message> •full
commit <hash> Author: <author> Commit: <committer> <title-line> <full-commit-message> •fuller
commit <hash> Author: <author> AuthorDate: <author-date> Commit: <committer> CommitDate: <committer-date> <title-line> <full-commit-message> •reference
<abbrev-hash> (<title-line>, <short-author-date>) This format is used to refer to another commit in a commit message and is the same as --pretty='format:%C(auto)%h (%s, %ad)'. By default, the date is formatted with --date=short unless another --date option is explicitly specified. As with any format: with format placeholders, its output is not affected by other options like --decorate and --walk-reflogs. •email
From <hash> <date> From: <author> Date: <author-date> Subject: [PATCH] <title-line> <full-commit-message> •mboxrd
Like email, but lines in the commit message starting with "From " (preceded by zero or more ">") are quoted with ">" so they aren’t confused as starting a new commit. •raw
The raw format shows the entire commit exactly as stored in the commit object. Notably, the hashes are displayed in full, regardless of whether --abbrev or --no-abbrev are used, and parents information show the true parent commits, without taking grafts or history simplification into account. Note that this format affects the way commits are displayed, but not the way the diff is shown e.g. with git log --raw. To get full object names in a raw diff format, use --no-abbrev. •format:<format-string>
The format:<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: •Placeholders that expand to a single literal
character:
%n newline
%% a raw %
%x00 %x followed by two hexadecimal digits is replaced
with a byte with the hexadecimal digits' value (we will call this
"literal formatting code" in the rest of this document).
•Placeholders that affect formatting of later
placeholders:
%Cred switch color to red
%Cgreen switch color to green
%Cblue switch color to blue
%Creset reset color
%C(...) color specification, as described under Values in the
"CONFIGURATION FILE" section of git-config(1). By default,
colors are shown only when enabled for log output (by color.diff,
color.ui, or --color, and respecting the auto settings of
the former if we are going to a terminal). %C(auto,...) is
accepted as a historical synonym for the default (e.g., %C(auto,red)).
Specifying %C(always,...) will show the colors even when color
is not otherwise enabled (though consider just using --color=always to
enable color for the whole output, including this format and anything else git
might color). auto alone (i.e. %C(auto)) will turn on auto
coloring on the next placeholders until the color is switched again.
%m left (<), right (>) or boundary (-)
mark
%w([<w>[,<i1>[,<i2>]]]) switch line wrapping, like the -w option of
git-shortlog(1).
%<( <N> [,trunc|ltrunc|mtrunc]) make the next placeholder take at least N column widths,
padding spaces on the right if necessary. Optionally truncate (with ellipsis
..) at the left (ltrunc) ..ft, the middle (mtrunc)
mi..le, or the end (trunc) rig.., if the output is
longer than N columns. Note 1: that truncating only works correctly with N
>= 2. Note 2: spaces around the N and M (see below) values are optional.
Note 3: Emojis and other wide characters will take two display columns, which
may over-run column boundaries. Note 4: decomposed character combining marks
may be misplaced at padding boundaries.
%<|( <M> ) make the next placeholder take at least until Mth display
column, padding spaces on the right if necessary. Use negative M values for
column positions measured from the right hand edge of the terminal
window.
%>( <N> ), %>|( <M> ) similar to %<( <N> ), %<|(
<M> ) respectively, but padding spaces on the left
%>>( <N> ), %>>|( <M> ) similar to %>( <N> ), %>|(
<M> ) respectively, except that if the next placeholder takes more
spaces than given and there are spaces on its left, use those spaces
%><( <N> ), %><|( <M> ) similar to %<( <N> ), %<|(
<M> ) respectively, but padding both sides (i.e. the text is
centered)
•Placeholders that expand to information extracted
from the commit:
%H commit hash
%h abbreviated commit hash
%T tree hash
%t abbreviated tree hash
%P parent hashes
%p abbreviated parent hashes
%an author name
%aN author name (respecting .mailmap, see
git-shortlog(1) or git-blame(1))
%ae author email
%aE author email (respecting .mailmap, see
git-shortlog(1) or git-blame(1))
%al author email local-part (the part before the @
sign)
%aL author local-part (see %al) respecting .mailmap,
see git-shortlog(1) or git-blame(1))
%ad author date (format respects --date= option)
%aD author date, RFC2822 style
%ar author date, relative
%at author date, UNIX timestamp
%ai author date, ISO 8601-like format
%aI author date, strict ISO 8601 format
%as author date, short format (YYYY-MM-DD)
%ah author date, human style (like the --date=human
option of git-rev-list(1))
%cn committer name
%cN committer name (respecting .mailmap, see
git-shortlog(1) or git-blame(1))
%ce committer email
%cE committer email (respecting .mailmap, see
git-shortlog(1) or git-blame(1))
%cl committer email local-part (the part before the @
sign)
%cL committer local-part (see %cl) respecting
.mailmap, see git-shortlog(1) or git-blame(1))
%cd committer date (format respects --date= option)
%cD committer date, RFC2822 style
%cr committer date, relative
%ct committer date, UNIX timestamp
%ci committer date, ISO 8601-like format
%cI committer date, strict ISO 8601 format
%cs committer date, short format (YYYY-MM-DD)
%ch committer date, human style (like the --date=human
option of git-rev-list(1))
%d ref names, like the --decorate option of
git-log(1)
%D ref names without the " (", ")"
wrapping.
%(decorate[:<options>]) ref names with custom decorations. The decorate
string may be followed by a colon and zero or more comma-separated options.
Option values may contain literal formatting codes. These must be used for
commas (%x2C) and closing parentheses (%x29), due to their role in the option
syntax.
•prefix=<value>: Shown before the
list of ref names. Defaults to " (".
•suffix=<value>: Shown after the list
of ref names. Defaults to ")".
•separator=<value>: Shown between ref
names. Defaults to ", ".
•pointer=<value>: Shown between HEAD
and the branch it points to, if any. Defaults to
" -> ".
•tag=<value>: Shown before tag names.
Defaults to "tag: ".
For example, to produce decorations with no wrapping or tag annotations, and spaces as separators: + %(decorate:prefix=,suffix=,tag=,separator= ) %(describe[:<options>]) human-readable name, like git-describe(1); empty
string for undescribable commits. The describe string may be followed
by a colon and zero or more comma-separated options. Descriptions can be
inconsistent when tags are added or removed at the same time.
•tags[=<bool-value>]: Instead of only
considering annotated tags, consider lightweight tags as well.
•abbrev=<number>: Instead of using
the default number of hexadecimal digits (which will vary according to the
number of objects in the repository with a default of 7) of the abbreviated
object name, use <number> digits, or as many digits as needed to form a
unique object name.
•match=<pattern>: Only consider tags
matching the given glob(7) pattern, excluding the
"refs/tags/" prefix.
•exclude=<pattern>: Do not consider
tags matching the given glob(7) pattern, excluding the
"refs/tags/" prefix.
%S ref name given on the command line by which the commit
was reached (like git log --source), only works with
git log
%e encoding
%s subject
%f sanitized subject line, suitable for a filename
%b body
%B raw body (unwrapped subject and body)
%N commit notes
%GG raw verification message from GPG for a signed
commit
%G? show "G" for a good (valid) signature,
"B" for a bad signature, "U" for a good signature with
unknown validity, "X" for a good signature that has expired,
"Y" for a good signature made by an expired key, "R" for a
good signature made by a revoked key, "E" if the signature cannot be
checked (e.g. missing key) and "N" for no signature
%GS show the name of the signer for a signed commit
%GK show the key used to sign a signed commit
%GF show the fingerprint of the key used to sign a signed
commit
%GP show the fingerprint of the primary key whose subkey was
used to sign a signed commit
%GT show the trust level for the key used to sign a signed
commit
%gD reflog selector, e.g., refs/stash@{1} or
refs/stash@{2 minutes ago}; the format follows the rules
described for the -g option. The portion before the @ is the
refname as given on the command line (so git log -g
refs/heads/master would yield refs/heads/master@{0}).
%gd shortened reflog selector; same as %gD, but the refname
portion is shortened for human readability (so refs/heads/master
becomes just master).
%gn reflog identity name
%gN reflog identity name (respecting .mailmap, see
git-shortlog(1) or git-blame(1))
%ge reflog identity email
%gE reflog identity email (respecting .mailmap, see
git-shortlog(1) or git-blame(1))
%gs reflog subject
%(trailers[:<options>]) display the trailers of the body as interpreted by
git-interpret-trailers(1). The trailers string may be followed
by a colon and zero or more comma-separated options. If any option is provided
multiple times, the last occurrence wins.
•key=<key>: only show trailers with
specified <key>. Matching is done case-insensitively and trailing colon
is optional. If option is given multiple times trailer lines matching any of
the keys are shown. This option automatically enables the only option
so that non-trailer lines in the trailer block are hidden. If that is not
desired it can be disabled with only=false. E.g.,
%(trailers:key=Reviewed-by) shows trailer lines with key
Reviewed-by.
•only[=<bool>]: select whether
non-trailer lines from the trailer block should be included.
•separator=<sep>: specify the
separator inserted between trailer lines. Defaults to a line feed character.
The string <sep> may contain the literal formatting codes described
above. To use comma as separator one must use %x2C as it would otherwise be
parsed as next option. E.g., %(trailers:key=Ticket,separator=%x2C )
shows all trailer lines whose key is "Ticket" separated by a comma
and a space.
•unfold[=<bool>]: make it behave as
if interpret-trailer’s --unfold option was given. E.g.,
%(trailers:only,unfold=true) unfolds and shows all trailer lines.
•keyonly[=<bool>]: only show the key
part of the trailer.
•valueonly[=<bool>]: only show the
value part of the trailer.
•key_value_separator=<sep>: specify
the separator inserted between the key and value of each trailer. Defaults to
": ". Otherwise it shares the same semantics as
separator=<sep> above.
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 and %D placeholders will use the "short" decoration format if --decorate was not already provided on the command line. The boolean options accept an optional value [=<bool-value>]. The values taken by --type=bool git-config[1], like yes and off, are all accepted. Giving a boolean option without =<value> is equivalent to giving it with =true. 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, all consecutive line-feeds immediately preceding 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. •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) 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 \ 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 DIFF FORMATTINGThe options below can be used to change the way git show generates diff output. -p, -u, --patch Generate patch (see the section called “GENERATING
PATCH TEXT WITH -P”).
-s, --no-patch Suppress all output from the diff machinery. Useful for
commands like git show that show the patch by default to squelch
their output, or to cancel the effect of options like --patch,
--stat earlier on the command line in an alias.
-m Show diffs for merge commits in the default format. This
is similar to --diff-merges=on, except -m will produce no output
unless -p is given as well.
-c Produce combined diff output for merge commits. Shortcut
for --diff-merges=combined -p.
--cc Produce dense combined diff output for merge commits.
Shortcut for --diff-merges=dense-combined -p.
--dd Produce diff with respect to first parent for both merge
and regular commits. Shortcut for --diff-merges=first-parent
-p.
--remerge-diff Produce remerge-diff output for merge commits. Shortcut
for --diff-merges=remerge -p.
--no-diff-merges Synonym for --diff-merges=off.
--diff-merges=<format> Specify diff format to be used for merge commits. Default
is `dense-combined` unless --first-parent is in use, in which case
first-parent is the default.
The following formats are supported: off, none Disable output of diffs for merge commits. Useful to
override implied value.
on, m Make diff output for merge commits to be shown in the
default format. The default format can be changed using log.diffMerges
configuration variable, whose default value is separate.
first-parent, 1 Show full diff with respect to first parent. This is the
same format as --patch produces for non-merge commits.
separate Show full diff with respect to each of parents. Separate
log entry and diff is generated for each parent.
combined, c Show 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.
dense-combined, cc Further compress output produced by
--diff-merges=combined by omitting uninteresting hunks whose contents
in the parents have only two variants and the merge result picks one of them
without modification.
remerge, r Remerge two-parent merge commits to create a temporary
tree object—potentially containing files with conflict markers and
such. A diff is then shown between that temporary tree and the actual merge
commit.
The output emitted when this option is used is subject to change, and so is its interaction with other options (unless explicitly documented). --combined-all-paths Cause combined diffs (used for merge commits) to list the
name of the file from all parents. It thus only has effect when
--diff-merges=[dense-]combined is in use, and is likely
only useful if filename changes are detected (i.e. when either rename or copy
detection have been requested).
-U<n>, --unified=<n> Generate diffs with <n> lines of context
instead of the usual three. Implies --patch.
--output=<file> Output to a specific file instead of stdout.
--output-indicator-new=<char>, --output-indicator-old=<char>, --output-indicator-context=<char> Specify the character used to indicate new, old or
context lines in the generated patch. Normally they are +, - and
' ' respectively.
--raw For each commit, show a summary of changes using the raw
diff format. See the "RAW OUTPUT FORMAT" section of
git-diff(1). This is different from showing the log itself in raw
format, which you can achieve with --format=raw.
--patch-with-raw Synonym for -p --raw.
-t Show the tree objects in the diff output.
--indent-heuristic Enable the heuristic that shifts diff hunk boundaries to
make patches easier to read. This is the default.
--no-indent-heuristic Disable the indent heuristic.
--minimal Spend extra time to make sure the smallest possible diff
is produced.
--patience Generate a diff using the "patience diff"
algorithm.
--histogram Generate a diff using the "histogram diff"
algorithm.
--anchored=<text> Generate a diff using the "anchored diff"
algorithm.
This option may be specified more than once. If a line exists in both the source and destination, exists only once, and starts with <text>, this algorithm attempts to prevent it from appearing as a deletion or addition in the output. It uses the "patience diff" algorithm internally. --diff-algorithm=(patience|minimal|histogram|myers) Choose a diff algorithm. The variants are as follows:
default, myers The basic greedy diff algorithm. Currently, this is the
default.
minimal Spend extra time to make sure the smallest possible diff
is produced.
patience Use "patience diff" algorithm when generating
patches.
histogram This algorithm extends the patience algorithm to
"support low-occurrence common elements".
For instance, if you configured the diff.algorithm variable to a non-default value and want to use the default one, then you have to use --diff-algorithm=default option. --stat[=<width>[,<name-width>[,<count>]]] Generate a diffstat. By default, as much space as
necessary will be used for the filename part, and the rest for the graph part.
Maximum width defaults to terminal width, or 80 columns if not connected to a
terminal, and can be overridden by <width>. The width of the
filename part can be limited by giving another width <name-width>
after a comma or by setting
diff.statNameWidth=<name-width>. The width of the graph
part can be limited by using
--stat-graph-width=<graph-width> or by setting
diff.statGraphWidth=<graph-width>. Using --stat or
--stat-graph-width affects all commands generating a stat graph, while
setting diff.statNameWidth or diff.statGraphWidth does not
affect git format-patch. By giving a third parameter
<count>, you can limit the output to the first
<count> lines, followed by ... if there are more.
These parameters can also be set individually with --stat-width=<width>, --stat-name-width=<name-width> and --stat-count=<count>. --compact-summary Output a condensed summary of extended header information
such as file creations or deletions ("new" or "gone",
optionally +l if it’s a symlink) and mode changes (+x or
-x for adding or removing executable bit respectively) in diffstat. The
information is put between the filename part and the graph part. Implies
--stat.
--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.
-X [<param>,...], --dirstat[=<param>,...] 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
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. --cumulative Synonym for --dirstat=cumulative.
--dirstat-by-file[=<param>,...] Synonym for
--dirstat=files,<param>,....
--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
newlines.
Also, when --raw or --numstat has been given, do not munge pathnames and use NULs as output field terminators. Without this option, pathnames with "unusual" characters are quoted as explained for the configuration variable core.quotePath (see git-config(1)). --name-only Show only the name of each changed file in the post-image
tree. The file names are often encoded in UTF-8. For more information see the
discussion about encoding in the git-log(1) manual page.
--name-status Show only the name(s) and status of each changed file.
See the description of the --diff-filter option on what the status
letters mean. Just like --name-only the file names are often encoded in
UTF-8.
--submodule[=<format>] Specify how differences in submodules are shown. When
specifying --submodule=short the short format is used. This
format just shows the names of the commits at the beginning and end of the
range. When --submodule or --submodule=log is specified, the
log format is used. This format lists the commits in the range like
git-submodule(1) summary does. When --submodule=diff is
specified, the diff format is used. This format shows an inline diff of
the changes in the submodule contents between the commit range. Defaults to
diff.submodule or the short format if the config option is
unset.
--color[=<when>] Show colored diff. --color (i.e. without
=<when>) is the same as --color=always.
<when> can be one of always, never, or
auto.
--no-color Turn off colored diff. It is the same as
--color=never.
--color-moved[=<mode>] Moved lines of code are colored differently. The
<mode> defaults to no if the option is not given and to
zebra if the option with no mode is given. The mode must be one of:
no Moved lines are not highlighted.
default Is a synonym for zebra. This may change to a more
sensible mode in the future.
plain Any line that is added in one location and was removed in
another location will be colored with color.diff.newMoved. Similarly
color.diff.oldMoved will be used for removed lines that are added
somewhere else in the diff. This mode picks up any moved line, but it is not
very useful in a review to determine if a block of code was moved without
permutation.
blocks Blocks of moved text of at least 20 alphanumeric
characters are detected greedily. The detected blocks are painted using either
the color.diff.(old|new)Moved color. Adjacent
blocks cannot be told apart.
zebra Blocks of moved text are detected as in blocks
mode. The blocks are painted using either the
color.diff.(old|new)Moved color or
color.diff.(old|new)MovedAlternative. The change
between the two colors indicates that a new block was detected.
dimmed-zebra Similar to zebra, but additional dimming of
uninteresting parts of moved code is performed. The bordering lines of two
adjacent blocks are considered interesting, the rest is uninteresting.
dimmed_zebra is a deprecated synonym.
--no-color-moved Turn off move detection. This can be used to override
configuration settings. It is the same as --color-moved=no.
--color-moved-ws=<mode>,... This configures how whitespace is ignored when performing
the move detection for --color-moved. These modes can be given as a
comma separated list:
no Do not ignore whitespace when performing move
detection.
ignore-space-at-eol Ignore changes in whitespace at EOL.
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.
ignore-all-space Ignore whitespace when comparing lines. This ignores
differences even if one line has whitespace where the other line has
none.
allow-indentation-change Initially ignore any whitespace in the move detection,
then group the moved code blocks only into a block if the change in whitespace
is the same per line. This is incompatible with the other modes.
--no-color-moved-ws Do not ignore whitespace when performing move detection.
This can be used to override configuration settings. It is the same as
--color-moved-ws=no.
--word-diff[=<mode>] 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. For example, --word-diff-regex=. will treat each character as a word and, correspondingly, show differences character by character. The regex can also be set via a diff driver or configuration option, see gitattributes(5) 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.
--[no-]rename-empty Whether to use empty blobs as rename source.
--check Warn if changes introduce conflict markers or whitespace
errors. What are considered whitespace errors is controlled by
core.whitespace configuration. By default, trailing whitespaces
(including lines that consist solely 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.
--ws-error-highlight=<kind> Highlight whitespace errors in the context,
old or new lines of the diff. Multiple values are separated by
comma, none resets previous values, default reset the list to
new and all is a shorthand for old,new,context. When this
option is not given, and the configuration variable
diff.wsErrorHighlight is not set, only whitespace errors in new
lines are highlighted. The whitespace errors are colored with
color.diff.whitespace.
--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. Implies --patch.
--abbrev[=<n>] Instead of showing the full 40-byte hexadecimal object
name in diff-raw format output and diff-tree header lines, show the shortest
prefix that is at least <n> hexdigits long that uniquely refers
the object. In diff-patch output format, --full-index takes higher
precedence, i.e. if --full-index is specified, full blob names will be
shown regardless of --abbrev. 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 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. Without a % sign, the number is to be read as a fraction, with a
decimal point before it. I.e., -M5 becomes 0.5, and is thus the same as
-M50%. Similarly, -M05 is the same as -M5%. To limit
detection to exact renames, use -M100%. The default similarity index is
50%.
-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 or git apply;
this is solely for people who want to just concentrate on reviewing the text
after the change. In addition, the output obviously lacks 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. -l<num> The -M and -C options involve some
preliminary steps that can detect subsets of renames/copies cheaply, followed
by an exhaustive fallback portion that compares all remaining unpaired
destinations to all relevant sources. (For renames, only remaining unpaired
sources are relevant; for copies, all original sources are relevant.) For N
sources and destinations, this exhaustive check is O(N^2). This option
prevents the exhaustive portion of rename/copy detection from running if the
number of source/destination files involved exceeds the specified number.
Defaults to diff.renameLimit. Note that a value of 0 is treated as
unlimited.
--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.
Also, these upper-case letters can be downcased to exclude. E.g. --diff-filter=ad excludes added and deleted paths. Note that not all diffs can feature all types. For instance, copied and renamed entries cannot appear if detection for those types is disabled. -S<string> Look for differences that change the number of
occurrences of the specified <string> (i.e. addition/deletion) in
a file. Intended for the scripter’s use.
It is useful when you’re looking for an exact block of code (like a struct), and want to know the history of that block since it first came into being: use the feature iteratively to feed the interesting block in the preimage back into -S, and keep going until you get the very first version of the block. Binary files are searched as well. -G<regex> Look for differences whose patch text contains
added/removed lines that match <regex>.
To illustrate the difference between -S<regex> --pickaxe-regex and -G<regex>, consider a commit with the following diff in the same file: + return frotz(nitfol, two->ptr, 1, 0); ... - hit = frotz(nitfol, mf2.ptr, 1, 0); While git log -G"frotz\(nitfol" will show this commit, git log -S"frotz\(nitfol" --pickaxe-regex will not (because the number of occurrences of that string did not change). Unless --text is supplied patches of binary files without a textconv filter will be ignored. See the pickaxe entry in gitdiffcore(7) for more information. --find-object=<object-id> Look for differences that change the number of
occurrences of the specified object. Similar to -S, just the argument
is different in that it doesn’t search for a specific string but for a
specific object id.
The object can be a blob or a submodule commit. It implies the -t option in git-log to also find trees. --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 Treat the <string> given to -S as an
extended POSIX regular expression to match.
-O<orderfile> Control the order in which files appear in the output.
This overrides the diff.orderFile configuration variable (see
git-config(1)). To cancel diff.orderFile, use
-O/dev/null.
The output order is determined by the order of glob patterns in <orderfile>. All files with pathnames that match the first pattern are output first, all files with pathnames that match the second pattern (but not the first) are output next, and so on. All files with pathnames that do not match any pattern are output last, as if there was an implicit match-all pattern at the end of the file. If multiple pathnames have the same rank (they match the same pattern but no earlier patterns), their output order relative to each other is the normal order. <orderfile> is parsed as follows: •Blank lines are ignored, so they can be used as
separators for readability.
•Lines starting with a hash ("#") are
ignored, so they can be used for comments. Add a backslash
("\") to the beginning of the pattern if it starts with a
hash.
•Each other line contains a single pattern.
Patterns have the same syntax and semantics as patterns used for fnmatch(3) without the FNM_PATHNAME flag, except a pathname also matches a pattern if removing any number of the final pathname components matches the pattern. For example, the pattern "foo*bar" matches "fooasdfbar" and "foo/bar/baz/asdf" but not "foobarx". --skip-to=<file>, --rotate-to=<file> Discard the files before the named <file>
from the output (i.e. skip to), or move them to the end of the output
(i.e. rotate to). These options were invented primarily for the use of
the git difftool command, and may not be very useful
otherwise.
-R Swap two inputs; that is, show differences from index or
on-disk file to tree contents.
--relative[=<path>], --no-relative 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 to by
giving a <path> as an argument. --no-relative can be used
to countermand both diff.relative config option and previous
--relative.
-a, --text Treat all files as text.
--ignore-cr-at-eol Ignore carriage-return at the end of line when doing a
comparison.
--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.
--ignore-blank-lines Ignore changes whose lines are all blank.
-I<regex>, --ignore-matching-lines=<regex> Ignore changes whose all lines match
<regex>. This option may be specified more than once.
--inter-hunk-context=<number> Show the context between diff hunks, up to the specified
<number> of lines, thereby fusing hunks that are close to each
other. Defaults to diff.interHunkContext or 0 if the config option is
unset.
-W, --function-context Show whole function as context lines for each change. The
function names are determined in the same way as git diff works
out patch hunk headers (see "Defining a custom hunk-header" in
gitattributes(5)).
--ext-diff Allow an external diff helper to be executed. If you set
an external diff driver with gitattributes(5), 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(5) 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[=(none|untracked|dirty|all)] Ignore changes to submodules in the diff generation.
all 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 any settings of the ignore option in
git-config(1) or gitmodules(5). 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.
--default-prefix Use the default source and destination prefixes
("a/" and "b/"). This overrides configuration variables
such as diff.noprefix, diff.srcPrefix, diff.dstPrefix,
and diff.mnemonicPrefix (see git-config(1)).
--line-prefix=<prefix> Prepend an additional <prefix> to every line
of output.
--ita-invisible-in-index By default entries added by git add
-N appear as an existing empty file in git diff and a new
file in git diff --cached. This option makes the entry
appear as a new file in git diff and non-existent in git
diff --cached. This option could be reverted with
--ita-visible-in-index. Both options are experimental and could be
removed in future.
For more detailed explanation on these common options, see also gitdiffcore(7). GENERATING PATCH TEXT WITH -PRunning git-diff(1), git-log(1), git-show(1), git-diff-index(1), git-diff-tree(1), or git-diff-files(1) with the -p option produces patch text. You can customize the creation of patch text via the GIT_EXTERNAL_DIFF and the GIT_DIFF_OPTS environment variables (see git(1)), and the diff attribute (see gitattributes(5)). What the -p option produces is slightly different from the traditional diff format: 1.It is preceded by 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 a 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 the rename/copy produces, respectively. 2.It is followed by one or more extended header lines:
old mode <mode> new mode <mode> 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> 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 blob object names 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.Pathnames with "unusual" characters are
quoted as explained for the configuration variable core.quotePath (see
git-config(1)).
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 5.Hunk headers mention the name of the function to which
the hunk applies. See "Defining a custom hunk-header" in
gitattributes(5) for details of how to tailor this to specific
languages.
COMBINED DIFF FORMATAny 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 suitable --diff-merges option to any of these commands to force generation of diffs in a specific format. 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 @@@ 1.It is preceded by a "git diff" header, that
looks like this (when the -c option is used):
diff --combined file or like this (when the --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>__ {empty}`new file mode <mode> deleted file mode <mode>,<mode> 3.It is followed by a two-line from-file/to-file header:
--- a/file +++ b/file Similar to the two-line header for the traditional unified diff format, /dev/null is used to signal created or deleted files. However, if the --combined-all-paths option is provided, instead of a two-line from-file/to-file, you get an N+1 line from-file/to-file header, where N is the number of parents in the merge commit: --- a/file --- a/file --- a/file +++ b/file This extended format can be useful if rename or copy detection is active, to allow you to see the original name of the file in different parents. 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 to be applied.
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 or 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 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"). EXAMPLESgit show v1.0.0 Shows the tag v1.0.0, along with the object the
tag points at.
git show v1.0.0^{tree} Shows the tree pointed to by the tag v1.0.0.
git show -s --format=%s v1.0.0^{commit} Shows the subject of the commit pointed to by the tag
v1.0.0.
git show next~10:Documentation/README Shows the contents of the file
Documentation/README as they were current in the 10th last commit of
the branch next.
git show master:Makefile master:t/Makefile Concatenates the contents of said Makefiles in the head
of the branch master.
DISCUSSIONGit is to some extent character encoding agnostic. •The contents of the blob objects are
uninterpreted sequences of bytes. There is no encoding translation at the core
level.
•Path names are encoded in UTF-8 normalization
form C. This applies to tree objects, the index file, ref names, as well as
path names in command line arguments, environment variables and config files
(.git/config (see git-config(1)), gitignore(5),
gitattributes(5) and gitmodules(5)).
Note that Git at the core level treats path names simply as sequences of non-NUL bytes, there are no path name encoding conversions (except on Mac and Windows). Therefore, using non-ASCII path names will mostly work even on platforms and file systems that use legacy extended ASCII encodings. However, repositories created on such systems will not work properly on UTF-8-based systems (e.g. Linux, Mac, Windows) and vice versa. Additionally, many Git-based tools simply assume path names to be UTF-8 and will fail to display other encodings correctly. •Commit log messages are typically encoded in
UTF-8, but other extended ASCII encodings are also supported. This includes
ISO-8859-x, CP125x and many others, but not UTF-16/32, EBCDIC and CJK
multi-byte encodings (GBK, Shift-JIS, Big5, EUC-x, CP9xx etc.).
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 issue 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] Commit objects created with the above setting record the value of i18n.commitEncoding in their 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] 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. GITPart of the git(1) suite
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