Documentation / git-notes.txton commit builtin/checkout: Fix message when switching to an existing branch (09a0ec5)
   1git-notes(1)
   2============
   3
   4NAME
   5----
   6git-notes - Add or inspect object notes
   7
   8SYNOPSIS
   9--------
  10[verse]
  11'git notes' [list [<object>]]
  12'git notes' add [-f] [-F <file> | -m <msg> | (-c | -C) <object>] [<object>]
  13'git notes' copy [-f] ( --stdin | <from-object> <to-object> )
  14'git notes' append [-F <file> | -m <msg> | (-c | -C) <object>] [<object>]
  15'git notes' edit [<object>]
  16'git notes' show [<object>]
  17'git notes' remove [<object>]
  18'git notes' prune [-n | -v]
  19
  20
  21DESCRIPTION
  22-----------
  23Adds, removes, or reads notes attached to objects, without touching
  24the objects themselves.
  25
  26By default, notes are saved to and read from `refs/notes/commits`, but
  27this default can be overridden.  See the OPTIONS, CONFIGURATION, and
  28ENVIRONMENT sections below.  If this ref does not exist, it will be
  29quietly created when it is first needed to store a note.
  30
  31A typical use of notes is to supplement a commit message without
  32changing the commit itself. Notes can be shown by 'git log' along with
  33the original commit message. To distinguish these notes from the
  34message stored in the commit object, the notes are indented like the
  35message, after an unindented line saying "Notes (<refname>):" (or
  36"Notes:" for `refs/notes/commits`).
  37
  38To change which notes are shown by 'git log', see the
  39"notes.displayRef" configuration in linkgit:git-log[1].
  40
  41See the "notes.rewrite.<command>" configuration for a way to carry
  42notes across commands that rewrite commits.
  43
  44
  45SUBCOMMANDS
  46-----------
  47
  48list::
  49        List the notes object for a given object. If no object is
  50        given, show a list of all note objects and the objects they
  51        annotate (in the format "<note object> <annotated object>").
  52        This is the default subcommand if no subcommand is given.
  53
  54add::
  55        Add notes for a given object (defaults to HEAD). Abort if the
  56        object already has notes (use `-f` to overwrite an
  57        existing note).
  58
  59copy::
  60        Copy the notes for the first object onto the second object.
  61        Abort if the second object already has notes, or if the first
  62        object has none (use -f to overwrite existing notes to the
  63        second object). This subcommand is equivalent to:
  64        `git notes add [-f] -C $(git notes list <from-object>) <to-object>`
  65+
  66In `\--stdin` mode, take lines in the format
  67+
  68----------
  69<from-object> SP <to-object> [ SP <rest> ] LF
  70----------
  71+
  72on standard input, and copy the notes from each <from-object> to its
  73corresponding <to-object>.  (The optional `<rest>` is ignored so that
  74the command can read the input given to the `post-rewrite` hook.)
  75
  76append::
  77        Append to the notes of an existing object (defaults to HEAD).
  78        Creates a new notes object if needed.
  79
  80edit::
  81        Edit the notes for a given object (defaults to HEAD).
  82
  83show::
  84        Show the notes for a given object (defaults to HEAD).
  85
  86remove::
  87        Remove the notes for a given object (defaults to HEAD).
  88        This is equivalent to specifying an empty note message to
  89        the `edit` subcommand.
  90
  91prune::
  92        Remove all notes for non-existing/unreachable objects.
  93
  94OPTIONS
  95-------
  96-f::
  97--force::
  98        When adding notes to an object that already has notes,
  99        overwrite the existing notes (instead of aborting).
 100
 101-m <msg>::
 102--message=<msg>::
 103        Use the given note message (instead of prompting).
 104        If multiple `-m` options are given, their values
 105        are concatenated as separate paragraphs.
 106        Lines starting with `#` and empty lines other than a
 107        single line between paragraphs will be stripped out.
 108
 109-F <file>::
 110--file=<file>::
 111        Take the note message from the given file.  Use '-' to
 112        read the note message from the standard input.
 113        Lines starting with `#` and empty lines other than a
 114        single line between paragraphs will be stripped out.
 115
 116-C <object>::
 117--reuse-message=<object>::
 118        Take the note message from the given blob object (for
 119        example, another note).
 120
 121-c <object>::
 122--reedit-message=<object>::
 123        Like '-C', but with '-c' the editor is invoked, so that
 124        the user can further edit the note message.
 125
 126--ref <ref>::
 127        Manipulate the notes tree in <ref>.  This overrides
 128        'GIT_NOTES_REF' and the "core.notesRef" configuration.  The ref
 129        is taken to be in `refs/notes/` if it is not qualified.
 130
 131-n::
 132--dry-run::
 133        Do not remove anything; just report the object names whose notes
 134        would be removed.
 135
 136-v::
 137--verbose::
 138        Report all object names whose notes are removed.
 139
 140
 141DISCUSSION
 142----------
 143
 144Commit notes are blobs containing extra information about an object
 145(usually information to supplement a commit's message).  These blobs
 146are taken from notes refs.  A notes ref is usually a branch which
 147contains "files" whose paths are the object names for the objects
 148they describe, with some directory separators included for performance
 149reasons footnote:[Permitted pathnames have the form
 150'ab'`/`'cd'`/`'ef'`/`'...'`/`'abcdef...': a sequence of directory
 151names of two hexadecimal digits each followed by a filename with the
 152rest of the object ID.].
 153
 154Every notes change creates a new commit at the specified notes ref.
 155You can therefore inspect the history of the notes by invoking, e.g.,
 156`git log -p notes/commits`.  Currently the commit message only records
 157which operation triggered the update, and the commit authorship is
 158determined according to the usual rules (see linkgit:git-commit[1]).
 159These details may change in the future.
 160
 161It is also permitted for a notes ref to point directly to a tree
 162object, in which case the history of the notes can be read with
 163`git log -p -g <refname>`.
 164
 165
 166EXAMPLES
 167--------
 168
 169You can use notes to add annotations with information that was not
 170available at the time a commit was written.
 171
 172------------
 173$ git notes add -m 'Tested-by: Johannes Sixt <j6t@kdbg.org>' 72a144e2
 174$ git show -s 72a144e
 175[...]
 176    Signed-off-by: Junio C Hamano <gitster@pobox.com>
 177
 178Notes:
 179    Tested-by: Johannes Sixt <j6t@kdbg.org>
 180------------
 181
 182In principle, a note is a regular Git blob, and any kind of
 183(non-)format is accepted.  You can binary-safely create notes from
 184arbitrary files using 'git hash-object':
 185
 186------------
 187$ cc *.c
 188$ blob=$(git hash-object -w a.out)
 189$ git notes --ref=built add -C "$blob" HEAD
 190------------
 191
 192Of course, it doesn't make much sense to display non-text-format notes
 193with 'git log', so if you use such notes, you'll probably need to write
 194some special-purpose tools to do something useful with them.
 195
 196
 197CONFIGURATION
 198-------------
 199
 200core.notesRef::
 201        Notes ref to read and manipulate instead of
 202        `refs/notes/commits`.  Must be an unabbreviated ref name.
 203        This setting can be overridden through the environment and
 204        command line.
 205
 206notes.displayRef::
 207        Which ref (or refs, if a glob or specified more than once), in
 208        addition to the default set by `core.notesRef` or
 209        'GIT_NOTES_REF', to read notes from when showing commit
 210        messages with the 'git log' family of commands.
 211        This setting can be overridden on the command line or by the
 212        'GIT_NOTES_DISPLAY_REF' environment variable.
 213        See linkgit:git-log[1].
 214
 215notes.rewrite.<command>::
 216        When rewriting commits with <command> (currently `amend` or
 217        `rebase`), if this variable is `false`, git will not copy
 218        notes from the original to the rewritten commit.  Defaults to
 219        `true`.  See also "`notes.rewriteRef`" below.
 220+
 221This setting can be overridden by the 'GIT_NOTES_REWRITE_REF'
 222environment variable.
 223
 224notes.rewriteMode::
 225        When copying notes during a rewrite, what to do if the target
 226        commit already has a note.  Must be one of `overwrite`,
 227        `concatenate`, and `ignore`.  Defaults to `concatenate`.
 228+
 229This setting can be overridden with the `GIT_NOTES_REWRITE_MODE`
 230environment variable.
 231
 232notes.rewriteRef::
 233        When copying notes during a rewrite, specifies the (fully
 234        qualified) ref whose notes should be copied.  May be a glob,
 235        in which case notes in all matching refs will be copied.  You
 236        may also specify this configuration several times.
 237+
 238Does not have a default value; you must configure this variable to
 239enable note rewriting.
 240+
 241Can be overridden with the 'GIT_NOTES_REWRITE_REF' environment variable.
 242
 243
 244ENVIRONMENT
 245-----------
 246
 247'GIT_NOTES_REF'::
 248        Which ref to manipulate notes from, instead of `refs/notes/commits`.
 249        This overrides the `core.notesRef` setting.
 250
 251'GIT_NOTES_DISPLAY_REF'::
 252        Colon-delimited list of refs or globs indicating which refs,
 253        in addition to the default from `core.notesRef` or
 254        'GIT_NOTES_REF', to read notes from when showing commit
 255        messages.
 256        This overrides the `notes.displayRef` setting.
 257+
 258A warning will be issued for refs that do not exist, but a glob that
 259does not match any refs is silently ignored.
 260
 261'GIT_NOTES_REWRITE_MODE'::
 262        When copying notes during a rewrite, what to do if the target
 263        commit already has a note.
 264        Must be one of `overwrite`, `concatenate`, and `ignore`.
 265        This overrides the `core.rewriteMode` setting.
 266
 267'GIT_NOTES_REWRITE_REF'::
 268        When rewriting commits, which notes to copy from the original
 269        to the rewritten commit.  Must be a colon-delimited list of
 270        refs or globs.
 271+
 272If not set in the environment, the list of notes to copy depends
 273on the `notes.rewrite.<command>` and `notes.rewriteRef` settings.
 274
 275
 276Author
 277------
 278Written by Johannes Schindelin <johannes.schindelin@gmx.de> and
 279Johan Herland <johan@herland.net>
 280
 281Documentation
 282-------------
 283Documentation by Johannes Schindelin and Johan Herland
 284
 285GIT
 286---
 287Part of the linkgit:git[7] suite