Git - git-show Documentation

git-show last updated in 2.56.0

NAME

git-show - Show various types of objects

SYNOPSIS

git show [options] <object>…

DESCRIPTION

Shows 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.

The command takes options applicable to the git diff-tree command 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. 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, 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 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. 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.
--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, 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.
--show-signature: Check the validity of a signed commit object by passing the signature to gpg --verify and show the 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:

oneline
```
<sha1> <title line>
```
This is designed to be as compact as possible.

short

commit <sha1>
Author: <author>

<title line>

medium

commit <sha1>
Author: <author>
Date:   <author date>

<title line>

<full commit message>

full

commit <sha1>
Author: <author>
Commit: <committer>

<title line>

<full commit message>

fuller

commit <sha1>
Author:     <author>
AuthorDate: <author date>
Commit:     <committer>
CommitDate: <committer date>

<title line>

<full commit message>

email

From <sha1> <date>
From: <author>
Date: <author date>
Subject: [PATCH] <title line>

<full commit message>

raw

The raw format shows the entire commit exactly as stored in the commit object. Notably, the SHA-1s 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:<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:
- %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])
- %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
- %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])
- %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
- %d: ref names, like the --decorate option of git-log[1]
- %D: ref names without the " (", ")" wrapping.
- %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 signature, "B" for a Bad signature, "U" for a good, untrusted signature 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
- %gD: reflog selector, e.g., refs/stash@{1}
- %gd: shortened reflog selector, e.g., stash@{1}
- %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
- %Cred: switch color to red
- %Cgreen: switch color to green
- %Cblue: switch color to blue
- %Creset: reset color
- %C(…): color specification, as described in color.branch.* config option; adding auto, at the beginning will emit color only when colors are 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). 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
- %n: newline
- %%: a raw %
- %x00: print a byte from a hex code
- %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 columns, padding spaces on the right if necessary. Optionally truncate at the beginning (ltrunc), the middle (mtrunc) or the end (trunc) if the output is longer than N columns. Note that truncating only works correctly with N >= 2.
- %<|(<N>): make the next placeholder take at least until Nth columns, padding spaces on the right if necessary
- %>(<N>), %>|(<N>): similar to %<(<N>), %<|(<N>) respectively, but padding spaces on the left
- %>>(<N>), %>>|(<N>): similar to %>(<N>), %>|(<N>) respectively, except that if the next placeholder takes more spaces than given and there are spaces on its left, use those spaces
- %><(<N>), %><|(<N>): similar to % <(<N>), %<|(<N>) respectively, but padding both sides (i.e. the text is centered)

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.

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.

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 \
  | 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).

-s

--no-patch

Suppress diff output. Useful for commands like git show that show the patch by default, or to cancel the effect of --patch.

-U<n>

--unified=<n>

Generate diffs with <n> lines of context instead of the usual three. Implies -p.

--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.

--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.

--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 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. The width of the graph part can be limited by using --stat-graph-width=<width> (affects all commands generating a stat graph) or by setting diff.statGraphWidth=<width> (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>.

--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 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>]

Specify how differences in submodules are shown. When --submodule or --submodule=log is given, the log format is used. This format lists the commits in the range like git-submodule[1] summary does. Omitting the --submodule option or specifying --submodule=short, uses the short format. This format just shows the names of the commits at the beginning and end of the range. Can be tweaked via the diff.submodule configuration variable.

--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.

--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>

Setup and Config

Getting and Creating Projects

Basic Snapshotting

Branching and Merging

Sharing and Updating Projects

Inspection and Comparison

Patching

Debugging

Email

External Systems

Server Admin

Guides

Administration