Documentation / git-commit.txton commit Better advice on using topic branches for kernel development (352953a)
   1git-commit(1)
   2=============
   3
   4NAME
   5----
   6git-commit - Record changes to the repository
   7
   8SYNOPSIS
   9--------
  10[verse]
  11'git commit' [-a | --interactive] [-s] [-v] [-u<mode>] [--amend] [--dry-run]
  12           [(-c | -C) <commit>] [-F <file> | -m <msg>] [--reset-author]
  13           [--allow-empty] [--allow-empty-message] [--no-verify] [-e] [--author=<author>]
  14           [--date=<date>] [--cleanup=<mode>] [--status | --no-status] [--]
  15           [[-i | -o ]<file>...]
  16
  17DESCRIPTION
  18-----------
  19Stores the current contents of the index in a new commit along
  20with a log message from the user describing the changes.
  21
  22The content to be added can be specified in several ways:
  23
  241. by using 'git add' to incrementally "add" changes to the
  25   index before using the 'commit' command (Note: even modified
  26   files must be "added");
  27
  282. by using 'git rm' to remove files from the working tree
  29   and the index, again before using the 'commit' command;
  30
  313. by listing files as arguments to the 'commit' command, in which
  32   case the commit will ignore changes staged in the index, and instead
  33   record the current content of the listed files (which must already
  34   be known to git);
  35
  364. by using the -a switch with the 'commit' command to automatically
  37   "add" changes from all known files (i.e. all files that are already
  38   listed in the index) and to automatically "rm" files in the index
  39   that have been removed from the working tree, and then perform the
  40   actual commit;
  41
  425. by using the --interactive switch with the 'commit' command to decide one
  43   by one which files should be part of the commit, before finalizing the
  44   operation.  Currently, this is done by invoking 'git add --interactive'.
  45
  46The `--dry-run` option can be used to obtain a
  47summary of what is included by any of the above for the next
  48commit by giving the same set of parameters (options and paths).
  49
  50If you make a commit and then find a mistake immediately after
  51that, you can recover from it with 'git reset'.
  52
  53
  54OPTIONS
  55-------
  56-a::
  57--all::
  58        Tell the command to automatically stage files that have
  59        been modified and deleted, but new files you have not
  60        told git about are not affected.
  61
  62-C <commit>::
  63--reuse-message=<commit>::
  64        Take an existing commit object, and reuse the log message
  65        and the authorship information (including the timestamp)
  66        when creating the commit.
  67
  68-c <commit>::
  69--reedit-message=<commit>::
  70        Like '-C', but with '-c' the editor is invoked, so that
  71        the user can further edit the commit message.
  72
  73--reset-author::
  74        When used with -C/-c/--amend options, declare that the
  75        authorship of the resulting commit now belongs of the committer.
  76        This also renews the author timestamp.
  77
  78--short::
  79        When doing a dry-run, give the output in the short-format. See
  80        linkgit:git-status[1] for details. Implies `--dry-run`.
  81
  82--porcelain::
  83        When doing a dry-run, give the output in a porcelain-ready
  84        format. See linkgit:git-status[1] for details. Implies
  85        `--dry-run`.
  86
  87-z::
  88        When showing `short` or `porcelain` status output, terminate
  89        entries in the status output with NUL, instead of LF. If no
  90        format is given, implies the `--porcelain` output format.
  91
  92-F <file>::
  93--file=<file>::
  94        Take the commit message from the given file.  Use '-' to
  95        read the message from the standard input.
  96
  97--author=<author>::
  98        Override the commit author. Specify an explicit author using the
  99        standard `A U Thor <author@example.com>` format. Otherwise <author>
 100        is assumed to be a pattern and is used to search for an existing
 101        commit by that author (i.e. rev-list --all -i --author=<author>);
 102        the commit author is then copied from the first such commit found.
 103
 104--date=<date>::
 105        Override the author date used in the commit.
 106
 107-m <msg>::
 108--message=<msg>::
 109        Use the given <msg> as the commit message.
 110
 111-t <file>::
 112--template=<file>::
 113        Use the contents of the given file as the initial version
 114        of the commit message. The editor is invoked and you can
 115        make subsequent changes. If a message is specified using
 116        the `-m` or `-F` options, this option has no effect. This
 117        overrides the `commit.template` configuration variable.
 118
 119-s::
 120--signoff::
 121        Add Signed-off-by line by the committer at the end of the commit
 122        log message.
 123
 124-n::
 125--no-verify::
 126        This option bypasses the pre-commit and commit-msg hooks.
 127        See also linkgit:githooks[5].
 128
 129--allow-empty::
 130        Usually recording a commit that has the exact same tree as its
 131        sole parent commit is a mistake, and the command prevents you
 132        from making such a commit.  This option bypasses the safety, and
 133        is primarily for use by foreign SCM interface scripts.
 134
 135--allow-empty-message::
 136       Like --allow-empty this command is primarily for use by foreign
 137       SCM interface scripts. It allows you to create a commit with an
 138       empty commit message without using plumbing commands like
 139       linkgit:git-commit-tree[1].
 140
 141--cleanup=<mode>::
 142        This option sets how the commit message is cleaned up.
 143        The  '<mode>' can be one of 'verbatim', 'whitespace', 'strip',
 144        and 'default'. The 'default' mode will strip leading and
 145        trailing empty lines and #commentary from the commit message
 146        only if the message is to be edited. Otherwise only whitespace
 147        removed. The 'verbatim' mode does not change message at all,
 148        'whitespace' removes just leading/trailing whitespace lines
 149        and 'strip' removes both whitespace and commentary.
 150
 151-e::
 152--edit::
 153        The message taken from file with `-F`, command line with
 154        `-m`, and from file with `-C` are usually used as the
 155        commit log message unmodified.  This option lets you
 156        further edit the message taken from these sources.
 157
 158--amend::
 159        Used to amend the tip of the current branch. Prepare the tree
 160        object you would want to replace the latest commit as usual
 161        (this includes the usual -i/-o and explicit paths), and the
 162        commit log editor is seeded with the commit message from the
 163        tip of the current branch. The commit you create replaces the
 164        current tip -- if it was a merge, it will have the parents of
 165        the current tip as parents -- so the current top commit is
 166        discarded.
 167+
 168--
 169It is a rough equivalent for:
 170------
 171        $ git reset --soft HEAD^
 172        $ ... do something else to come up with the right tree ...
 173        $ git commit -c ORIG_HEAD
 174
 175------
 176but can be used to amend a merge commit.
 177--
 178+
 179You should understand the implications of rewriting history if you
 180amend a commit that has already been published.  (See the "RECOVERING
 181FROM UPSTREAM REBASE" section in linkgit:git-rebase[1].)
 182
 183-i::
 184--include::
 185        Before making a commit out of staged contents so far,
 186        stage the contents of paths given on the command line
 187        as well.  This is usually not what you want unless you
 188        are concluding a conflicted merge.
 189
 190-o::
 191--only::
 192        Make a commit only from the paths specified on the
 193        command line, disregarding any contents that have been
 194        staged so far. This is the default mode of operation of
 195        'git commit' if any paths are given on the command line,
 196        in which case this option can be omitted.
 197        If this option is specified together with '--amend', then
 198        no paths need to be specified, which can be used to amend
 199        the last commit without committing changes that have
 200        already been staged.
 201
 202-u[<mode>]::
 203--untracked-files[=<mode>]::
 204        Show untracked files (Default: 'all').
 205+
 206The mode parameter is optional, and is used to specify
 207the handling of untracked files.
 208+
 209The possible options are:
 210+
 211        - 'no'     - Show no untracked files
 212        - 'normal' - Shows untracked files and directories
 213        - 'all'    - Also shows individual files in untracked directories.
 214+
 215See linkgit:git-config[1] for configuration variable
 216used to change the default for when the option is not
 217specified.
 218
 219-v::
 220--verbose::
 221        Show unified diff between the HEAD commit and what
 222        would be committed at the bottom of the commit message
 223        template.  Note that this diff output doesn't have its
 224        lines prefixed with '#'.
 225
 226-q::
 227--quiet::
 228        Suppress commit summary message.
 229
 230--dry-run::
 231        Do not create a commit, but show a list of paths that are
 232        to be committed, paths with local changes that will be left
 233        uncommitted and paths that are untracked.
 234
 235--status::
 236        Include the output of linkgit:git-status[1] in the commit
 237        message template when using an editor to prepare the commit
 238        message.  Defaults to on, but can be used to override
 239        configuration variable commit.status.
 240
 241--no-status::
 242        Do not include the output of linkgit:git-status[1] in the
 243        commit message template when using an editor to prepare the
 244        default commit message.
 245
 246\--::
 247        Do not interpret any more arguments as options.
 248
 249<file>...::
 250        When files are given on the command line, the command
 251        commits the contents of the named files, without
 252        recording the changes already staged.  The contents of
 253        these files are also staged for the next commit on top
 254        of what have been staged before.
 255
 256:git-commit: 1
 257include::date-formats.txt[]
 258
 259EXAMPLES
 260--------
 261When recording your own work, the contents of modified files in
 262your working tree are temporarily stored to a staging area
 263called the "index" with 'git add'.  A file can be
 264reverted back, only in the index but not in the working tree,
 265to that of the last commit with `git reset HEAD -- <file>`,
 266which effectively reverts 'git add' and prevents the changes to
 267this file from participating in the next commit.  After building
 268the state to be committed incrementally with these commands,
 269`git commit` (without any pathname parameter) is used to record what
 270has been staged so far.  This is the most basic form of the
 271command.  An example:
 272
 273------------
 274$ edit hello.c
 275$ git rm goodbye.c
 276$ git add hello.c
 277$ git commit
 278------------
 279
 280Instead of staging files after each individual change, you can
 281tell `git commit` to notice the changes to the files whose
 282contents are tracked in
 283your working tree and do corresponding `git add` and `git rm`
 284for you.  That is, this example does the same as the earlier
 285example if there is no other change in your working tree:
 286
 287------------
 288$ edit hello.c
 289$ rm goodbye.c
 290$ git commit -a
 291------------
 292
 293The command `git commit -a` first looks at your working tree,
 294notices that you have modified hello.c and removed goodbye.c,
 295and performs necessary `git add` and `git rm` for you.
 296
 297After staging changes to many files, you can alter the order the
 298changes are recorded in, by giving pathnames to `git commit`.
 299When pathnames are given, the command makes a commit that
 300only records the changes made to the named paths:
 301
 302------------
 303$ edit hello.c hello.h
 304$ git add hello.c hello.h
 305$ edit Makefile
 306$ git commit Makefile
 307------------
 308
 309This makes a commit that records the modification to `Makefile`.
 310The changes staged for `hello.c` and `hello.h` are not included
 311in the resulting commit.  However, their changes are not lost --
 312they are still staged and merely held back.  After the above
 313sequence, if you do:
 314
 315------------
 316$ git commit
 317------------
 318
 319this second commit would record the changes to `hello.c` and
 320`hello.h` as expected.
 321
 322After a merge (initiated by 'git merge' or 'git pull') stops
 323because of conflicts, cleanly merged
 324paths are already staged to be committed for you, and paths that
 325conflicted are left in unmerged state.  You would have to first
 326check which paths are conflicting with 'git status'
 327and after fixing them manually in your working tree, you would
 328stage the result as usual with 'git add':
 329
 330------------
 331$ git status | grep unmerged
 332unmerged: hello.c
 333$ edit hello.c
 334$ git add hello.c
 335------------
 336
 337After resolving conflicts and staging the result, `git ls-files -u`
 338would stop mentioning the conflicted path.  When you are done,
 339run `git commit` to finally record the merge:
 340
 341------------
 342$ git commit
 343------------
 344
 345As with the case to record your own changes, you can use `-a`
 346option to save typing.  One difference is that during a merge
 347resolution, you cannot use `git commit` with pathnames to
 348alter the order the changes are committed, because the merge
 349should be recorded as a single commit.  In fact, the command
 350refuses to run when given pathnames (but see `-i` option).
 351
 352
 353DISCUSSION
 354----------
 355
 356Though not required, it's a good idea to begin the commit message
 357with a single short (less than 50 character) line summarizing the
 358change, followed by a blank line and then a more thorough description.
 359Tools that turn commits into email, for example, use the first line
 360on the Subject: line and the rest of the commit in the body.
 361
 362include::i18n.txt[]
 363
 364ENVIRONMENT AND CONFIGURATION VARIABLES
 365---------------------------------------
 366The editor used to edit the commit log message will be chosen from the
 367GIT_EDITOR environment variable, the core.editor configuration variable, the
 368VISUAL environment variable, or the EDITOR environment variable (in that
 369order).  See linkgit:git-var[1] for details.
 370
 371HOOKS
 372-----
 373This command can run `commit-msg`, `prepare-commit-msg`, `pre-commit`,
 374and `post-commit` hooks.  See linkgit:githooks[5] for more
 375information.
 376
 377
 378SEE ALSO
 379--------
 380linkgit:git-add[1],
 381linkgit:git-rm[1],
 382linkgit:git-mv[1],
 383linkgit:git-merge[1],
 384linkgit:git-commit-tree[1]
 385
 386Author
 387------
 388Written by Linus Torvalds <torvalds@osdl.org> and
 389Junio C Hamano <gitster@pobox.com>
 390
 391
 392GIT
 393---
 394Part of the linkgit:git[1] suite