Documentation / git-notes.txton commit Merge branch 'jc/maint-mergetool-read-fix' (f50d0a7)
   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' merge [-v | -q] [-s <strategy> ] <notes_ref>
  18'git notes' merge --commit [-v | -q]
  19'git notes' merge --abort [-v | -q]
  20'git notes' remove [--ignore-missing] [--stdin] [<object>...]
  21'git notes' prune [-n | -v]
  22'git notes' get-ref
  23
  24
  25DESCRIPTION
  26-----------
  27Adds, removes, or reads notes attached to objects, without touching
  28the objects themselves.
  29
  30By default, notes are saved to and read from `refs/notes/commits`, but
  31this default can be overridden.  See the OPTIONS, CONFIGURATION, and
  32ENVIRONMENT sections below.  If this ref does not exist, it will be
  33quietly created when it is first needed to store a note.
  34
  35A typical use of notes is to supplement a commit message without
  36changing the commit itself. Notes can be shown by 'git log' along with
  37the original commit message. To distinguish these notes from the
  38message stored in the commit object, the notes are indented like the
  39message, after an unindented line saying "Notes (<refname>):" (or
  40"Notes:" for `refs/notes/commits`).
  41
  42To change which notes are shown by 'git log', see the
  43"notes.displayRef" configuration in linkgit:git-log[1].
  44
  45See the "notes.rewrite.<command>" configuration for a way to carry
  46notes across commands that rewrite commits.
  47
  48
  49SUBCOMMANDS
  50-----------
  51
  52list::
  53        List the notes object for a given object. If no object is
  54        given, show a list of all note objects and the objects they
  55        annotate (in the format "<note object> <annotated object>").
  56        This is the default subcommand if no subcommand is given.
  57
  58add::
  59        Add notes for a given object (defaults to HEAD). Abort if the
  60        object already has notes (use `-f` to overwrite existing notes).
  61        However, if you're using `add` interactively (using an editor
  62        to supply the notes contents), then - instead of aborting -
  63        the existing notes will be opened in the editor (like the `edit`
  64        subcommand).
  65
  66copy::
  67        Copy the notes for the first object onto the second object.
  68        Abort if the second object already has notes, or if the first
  69        object has none (use -f to overwrite existing notes to the
  70        second object). This subcommand is equivalent to:
  71        `git notes add [-f] -C $(git notes list <from-object>) <to-object>`
  72+
  73In `\--stdin` mode, take lines in the format
  74+
  75----------
  76<from-object> SP <to-object> [ SP <rest> ] LF
  77----------
  78+
  79on standard input, and copy the notes from each <from-object> to its
  80corresponding <to-object>.  (The optional `<rest>` is ignored so that
  81the command can read the input given to the `post-rewrite` hook.)
  82
  83append::
  84        Append to the notes of an existing object (defaults to HEAD).
  85        Creates a new notes object if needed.
  86
  87edit::
  88        Edit the notes for a given object (defaults to HEAD).
  89
  90show::
  91        Show the notes for a given object (defaults to HEAD).
  92
  93merge::
  94        Merge the given notes ref into the current notes ref.
  95        This will try to merge the changes made by the given
  96        notes ref (called "remote") since the merge-base (if
  97        any) into the current notes ref (called "local").
  98+
  99If conflicts arise and a strategy for automatically resolving
 100conflicting notes (see the -s/--strategy option) is not given,
 101the "manual" resolver is used. This resolver checks out the
 102conflicting notes in a special worktree (`.git/NOTES_MERGE_WORKTREE`),
 103and instructs the user to manually resolve the conflicts there.
 104When done, the user can either finalize the merge with
 105'git notes merge --commit', or abort the merge with
 106'git notes merge --abort'.
 107
 108remove::
 109        Remove the notes for given objects (defaults to HEAD). When
 110        giving zero or one object from the command line, this is
 111        equivalent to specifying an empty note message to
 112        the `edit` subcommand.
 113
 114prune::
 115        Remove all notes for non-existing/unreachable objects.
 116
 117get-ref::
 118        Print the current notes ref. This provides an easy way to
 119        retrieve the current notes ref (e.g. from scripts).
 120
 121OPTIONS
 122-------
 123-f::
 124--force::
 125        When adding notes to an object that already has notes,
 126        overwrite the existing notes (instead of aborting).
 127
 128-m <msg>::
 129--message=<msg>::
 130        Use the given note message (instead of prompting).
 131        If multiple `-m` options are given, their values
 132        are concatenated as separate paragraphs.
 133        Lines starting with `#` and empty lines other than a
 134        single line between paragraphs will be stripped out.
 135
 136-F <file>::
 137--file=<file>::
 138        Take the note message from the given file.  Use '-' to
 139        read the note message from the standard input.
 140        Lines starting with `#` and empty lines other than a
 141        single line between paragraphs will be stripped out.
 142
 143-C <object>::
 144--reuse-message=<object>::
 145        Take the note message from the given blob object (for
 146        example, another note).
 147
 148-c <object>::
 149--reedit-message=<object>::
 150        Like '-C', but with '-c' the editor is invoked, so that
 151        the user can further edit the note message.
 152
 153--ref <ref>::
 154        Manipulate the notes tree in <ref>.  This overrides
 155        'GIT_NOTES_REF' and the "core.notesRef" configuration.  The ref
 156        is taken to be in `refs/notes/` if it is not qualified.
 157
 158--ignore-missing::
 159        Do not consider it an error to request removing notes from an
 160        object that does not have notes attached to it.
 161
 162--stdin::
 163        Also read the object names to remove notes from from the standard
 164        input (there is no reason you cannot combine this with object
 165        names from the command line).
 166
 167-n::
 168--dry-run::
 169        Do not remove anything; just report the object names whose notes
 170        would be removed.
 171
 172-s <strategy>::
 173--strategy=<strategy>::
 174        When merging notes, resolve notes conflicts using the given
 175        strategy. The following strategies are recognized: "manual"
 176        (default), "ours", "theirs", "union" and "cat_sort_uniq".
 177        See the "NOTES MERGE STRATEGIES" section below for more
 178        information on each notes merge strategy.
 179
 180--commit::
 181        Finalize an in-progress 'git notes merge'. Use this option
 182        when you have resolved the conflicts that 'git notes merge'
 183        stored in .git/NOTES_MERGE_WORKTREE. This amends the partial
 184        merge commit created by 'git notes merge' (stored in
 185        .git/NOTES_MERGE_PARTIAL) by adding the notes in
 186        .git/NOTES_MERGE_WORKTREE. The notes ref stored in the
 187        .git/NOTES_MERGE_REF symref is updated to the resulting commit.
 188
 189--abort::
 190        Abort/reset a in-progress 'git notes merge', i.e. a notes merge
 191        with conflicts. This simply removes all files related to the
 192        notes merge.
 193
 194-q::
 195--quiet::
 196        When merging notes, operate quietly.
 197
 198-v::
 199--verbose::
 200        When merging notes, be more verbose.
 201        When pruning notes, report all object names whose notes are
 202        removed.
 203
 204
 205DISCUSSION
 206----------
 207
 208Commit notes are blobs containing extra information about an object
 209(usually information to supplement a commit's message).  These blobs
 210are taken from notes refs.  A notes ref is usually a branch which
 211contains "files" whose paths are the object names for the objects
 212they describe, with some directory separators included for performance
 213reasons footnote:[Permitted pathnames have the form
 214'ab'`/`'cd'`/`'ef'`/`'...'`/`'abcdef...': a sequence of directory
 215names of two hexadecimal digits each followed by a filename with the
 216rest of the object ID.].
 217
 218Every notes change creates a new commit at the specified notes ref.
 219You can therefore inspect the history of the notes by invoking, e.g.,
 220`git log -p notes/commits`.  Currently the commit message only records
 221which operation triggered the update, and the commit authorship is
 222determined according to the usual rules (see linkgit:git-commit[1]).
 223These details may change in the future.
 224
 225It is also permitted for a notes ref to point directly to a tree
 226object, in which case the history of the notes can be read with
 227`git log -p -g <refname>`.
 228
 229
 230NOTES MERGE STRATEGIES
 231----------------------
 232
 233The default notes merge strategy is "manual", which checks out
 234conflicting notes in a special work tree for resolving notes conflicts
 235(`.git/NOTES_MERGE_WORKTREE`), and instructs the user to resolve the
 236conflicts in that work tree.
 237When done, the user can either finalize the merge with
 238'git notes merge --commit', or abort the merge with
 239'git notes merge --abort'.
 240
 241"ours" automatically resolves conflicting notes in favor of the local
 242version (i.e. the current notes ref).
 243
 244"theirs" automatically resolves notes conflicts in favor of the remote
 245version (i.e. the given notes ref being merged into the current notes
 246ref).
 247
 248"union" automatically resolves notes conflicts by concatenating the
 249local and remote versions.
 250
 251"cat_sort_uniq" is similar to "union", but in addition to concatenating
 252the local and remote versions, this strategy also sorts the resulting
 253lines, and removes duplicate lines from the result. This is equivalent
 254to applying the "cat | sort | uniq" shell pipeline to the local and
 255remote versions. This strategy is useful if the notes follow a line-based
 256format where one wants to avoid duplicated lines in the merge result.
 257Note that if either the local or remote version contain duplicate lines
 258prior to the merge, these will also be removed by this notes merge
 259strategy.
 260
 261
 262EXAMPLES
 263--------
 264
 265You can use notes to add annotations with information that was not
 266available at the time a commit was written.
 267
 268------------
 269$ git notes add -m 'Tested-by: Johannes Sixt <j6t@kdbg.org>' 72a144e2
 270$ git show -s 72a144e
 271[...]
 272    Signed-off-by: Junio C Hamano <gitster@pobox.com>
 273
 274Notes:
 275    Tested-by: Johannes Sixt <j6t@kdbg.org>
 276------------
 277
 278In principle, a note is a regular Git blob, and any kind of
 279(non-)format is accepted.  You can binary-safely create notes from
 280arbitrary files using 'git hash-object':
 281
 282------------
 283$ cc *.c
 284$ blob=$(git hash-object -w a.out)
 285$ git notes --ref=built add -C "$blob" HEAD
 286------------
 287
 288Of course, it doesn't make much sense to display non-text-format notes
 289with 'git log', so if you use such notes, you'll probably need to write
 290some special-purpose tools to do something useful with them.
 291
 292
 293CONFIGURATION
 294-------------
 295
 296core.notesRef::
 297        Notes ref to read and manipulate instead of
 298        `refs/notes/commits`.  Must be an unabbreviated ref name.
 299        This setting can be overridden through the environment and
 300        command line.
 301
 302notes.displayRef::
 303        Which ref (or refs, if a glob or specified more than once), in
 304        addition to the default set by `core.notesRef` or
 305        'GIT_NOTES_REF', to read notes from when showing commit
 306        messages with the 'git log' family of commands.
 307        This setting can be overridden on the command line or by the
 308        'GIT_NOTES_DISPLAY_REF' environment variable.
 309        See linkgit:git-log[1].
 310
 311notes.rewrite.<command>::
 312        When rewriting commits with <command> (currently `amend` or
 313        `rebase`), if this variable is `false`, git will not copy
 314        notes from the original to the rewritten commit.  Defaults to
 315        `true`.  See also "`notes.rewriteRef`" below.
 316+
 317This setting can be overridden by the 'GIT_NOTES_REWRITE_REF'
 318environment variable.
 319
 320notes.rewriteMode::
 321        When copying notes during a rewrite, what to do if the target
 322        commit already has a note.  Must be one of `overwrite`,
 323        `concatenate`, and `ignore`.  Defaults to `concatenate`.
 324+
 325This setting can be overridden with the `GIT_NOTES_REWRITE_MODE`
 326environment variable.
 327
 328notes.rewriteRef::
 329        When copying notes during a rewrite, specifies the (fully
 330        qualified) ref whose notes should be copied.  May be a glob,
 331        in which case notes in all matching refs will be copied.  You
 332        may also specify this configuration several times.
 333+
 334Does not have a default value; you must configure this variable to
 335enable note rewriting.
 336+
 337Can be overridden with the 'GIT_NOTES_REWRITE_REF' environment variable.
 338
 339
 340ENVIRONMENT
 341-----------
 342
 343'GIT_NOTES_REF'::
 344        Which ref to manipulate notes from, instead of `refs/notes/commits`.
 345        This overrides the `core.notesRef` setting.
 346
 347'GIT_NOTES_DISPLAY_REF'::
 348        Colon-delimited list of refs or globs indicating which refs,
 349        in addition to the default from `core.notesRef` or
 350        'GIT_NOTES_REF', to read notes from when showing commit
 351        messages.
 352        This overrides the `notes.displayRef` setting.
 353+
 354A warning will be issued for refs that do not exist, but a glob that
 355does not match any refs is silently ignored.
 356
 357'GIT_NOTES_REWRITE_MODE'::
 358        When copying notes during a rewrite, what to do if the target
 359        commit already has a note.
 360        Must be one of `overwrite`, `concatenate`, and `ignore`.
 361        This overrides the `core.rewriteMode` setting.
 362
 363'GIT_NOTES_REWRITE_REF'::
 364        When rewriting commits, which notes to copy from the original
 365        to the rewritten commit.  Must be a colon-delimited list of
 366        refs or globs.
 367+
 368If not set in the environment, the list of notes to copy depends
 369on the `notes.rewrite.<command>` and `notes.rewriteRef` settings.
 370
 371
 372Author
 373------
 374Written by Johannes Schindelin <johannes.schindelin@gmx.de> and
 375Johan Herland <johan@herland.net>
 376
 377Documentation
 378-------------
 379Documentation by Johannes Schindelin and Johan Herland
 380
 381GIT
 382---
 383Part of the linkgit:git[7] suite