Documentation / rev-list-options.txton commit upload-pack.c: use error_errno() (d2b6afa)
   1Commit Limiting
   2~~~~~~~~~~~~~~~
   3
   4Besides specifying a range of commits that should be listed using the
   5special notations explained in the description, additional commit
   6limiting may be applied.
   7
   8Using more options generally further limits the output (e.g.
   9`--since=<date1>` limits to commits newer than `<date1>`, and using it
  10with `--grep=<pattern>` further limits to commits whose log message
  11has a line that matches `<pattern>`), unless otherwise noted.
  12
  13Note that these are applied before commit
  14ordering and formatting options, such as `--reverse`.
  15
  16--
  17
  18-<number>::
  19-n <number>::
  20--max-count=<number>::
  21        Limit the number of commits to output.
  22
  23--skip=<number>::
  24        Skip 'number' commits before starting to show the commit output.
  25
  26--since=<date>::
  27--after=<date>::
  28        Show commits more recent than a specific date.
  29
  30--until=<date>::
  31--before=<date>::
  32        Show commits older than a specific date.
  33
  34ifdef::git-rev-list[]
  35--max-age=<timestamp>::
  36--min-age=<timestamp>::
  37        Limit the commits output to specified time range.
  38endif::git-rev-list[]
  39
  40--author=<pattern>::
  41--committer=<pattern>::
  42        Limit the commits output to ones with author/committer
  43        header lines that match the specified pattern (regular
  44        expression).  With more than one `--author=<pattern>`,
  45        commits whose author matches any of the given patterns are
  46        chosen (similarly for multiple `--committer=<pattern>`).
  47
  48--grep-reflog=<pattern>::
  49        Limit the commits output to ones with reflog entries that
  50        match the specified pattern (regular expression). With
  51        more than one `--grep-reflog`, commits whose reflog message
  52        matches any of the given patterns are chosen.  It is an
  53        error to use this option unless `--walk-reflogs` is in use.
  54
  55--grep=<pattern>::
  56        Limit the commits output to ones with log message that
  57        matches the specified pattern (regular expression).  With
  58        more than one `--grep=<pattern>`, commits whose message
  59        matches any of the given patterns are chosen (but see
  60        `--all-match`).
  61ifndef::git-rev-list[]
  62+
  63When `--show-notes` is in effect, the message from the notes is
  64matched as if it were part of the log message.
  65endif::git-rev-list[]
  66
  67--all-match::
  68        Limit the commits output to ones that match all given `--grep`,
  69        instead of ones that match at least one.
  70
  71--invert-grep::
  72        Limit the commits output to ones with log message that do not
  73        match the pattern specified with `--grep=<pattern>`.
  74
  75-i::
  76--regexp-ignore-case::
  77        Match the regular expression limiting patterns without regard to letter
  78        case.
  79
  80--basic-regexp::
  81        Consider the limiting patterns to be basic regular expressions;
  82        this is the default.
  83
  84-E::
  85--extended-regexp::
  86        Consider the limiting patterns to be extended regular expressions
  87        instead of the default basic regular expressions.
  88
  89-F::
  90--fixed-strings::
  91        Consider the limiting patterns to be fixed strings (don't interpret
  92        pattern as a regular expression).
  93
  94--perl-regexp::
  95        Consider the limiting patterns to be Perl-compatible regular expressions.
  96        Requires libpcre to be compiled in.
  97
  98--remove-empty::
  99        Stop when a given path disappears from the tree.
 100
 101--merges::
 102        Print only merge commits. This is exactly the same as `--min-parents=2`.
 103
 104--no-merges::
 105        Do not print commits with more than one parent. This is
 106        exactly the same as `--max-parents=1`.
 107
 108--min-parents=<number>::
 109--max-parents=<number>::
 110--no-min-parents::
 111--no-max-parents::
 112        Show only commits which have at least (or at most) that many parent
 113        commits. In particular, `--max-parents=1` is the same as `--no-merges`,
 114        `--min-parents=2` is the same as `--merges`.  `--max-parents=0`
 115        gives all root commits and `--min-parents=3` all octopus merges.
 116+
 117`--no-min-parents` and `--no-max-parents` reset these limits (to no limit)
 118again.  Equivalent forms are `--min-parents=0` (any commit has 0 or more
 119parents) and `--max-parents=-1` (negative numbers denote no upper limit).
 120
 121--first-parent::
 122        Follow only the first parent commit upon seeing a merge
 123        commit.  This option can give a better overview when
 124        viewing the evolution of a particular topic branch,
 125        because merges into a topic branch tend to be only about
 126        adjusting to updated upstream from time to time, and
 127        this option allows you to ignore the individual commits
 128        brought in to your history by such a merge. Cannot be
 129        combined with --bisect.
 130
 131--not::
 132        Reverses the meaning of the '{caret}' prefix (or lack thereof)
 133        for all following revision specifiers, up to the next `--not`.
 134
 135--all::
 136        Pretend as if all the refs in `refs/` are listed on the
 137        command line as '<commit>'.
 138
 139--branches[=<pattern>]::
 140        Pretend as if all the refs in `refs/heads` are listed
 141        on the command line as '<commit>'. If '<pattern>' is given, limit
 142        branches to ones matching given shell glob. If pattern lacks '?',
 143        '{asterisk}', or '[', '/{asterisk}' at the end is implied.
 144
 145--tags[=<pattern>]::
 146        Pretend as if all the refs in `refs/tags` are listed
 147        on the command line as '<commit>'. If '<pattern>' is given, limit
 148        tags to ones matching given shell glob. If pattern lacks '?', '{asterisk}',
 149        or '[', '/{asterisk}' at the end is implied.
 150
 151--remotes[=<pattern>]::
 152        Pretend as if all the refs in `refs/remotes` are listed
 153        on the command line as '<commit>'. If '<pattern>' is given, limit
 154        remote-tracking branches to ones matching given shell glob.
 155        If pattern lacks '?', '{asterisk}', or '[', '/{asterisk}' at the end is implied.
 156
 157--glob=<glob-pattern>::
 158        Pretend as if all the refs matching shell glob '<glob-pattern>'
 159        are listed on the command line as '<commit>'. Leading 'refs/',
 160        is automatically prepended if missing. If pattern lacks '?', '{asterisk}',
 161        or '[', '/{asterisk}' at the end is implied.
 162
 163--exclude=<glob-pattern>::
 164
 165        Do not include refs matching '<glob-pattern>' that the next `--all`,
 166        `--branches`, `--tags`, `--remotes`, or `--glob` would otherwise
 167        consider. Repetitions of this option accumulate exclusion patterns
 168        up to the next `--all`, `--branches`, `--tags`, `--remotes`, or
 169        `--glob` option (other options or arguments do not clear
 170        accumulated patterns).
 171+
 172The patterns given should not begin with `refs/heads`, `refs/tags`, or
 173`refs/remotes` when applied to `--branches`, `--tags`, or `--remotes`,
 174respectively, and they must begin with `refs/` when applied to `--glob`
 175or `--all`. If a trailing '/{asterisk}' is intended, it must be given
 176explicitly.
 177
 178--reflog::
 179        Pretend as if all objects mentioned by reflogs are listed on the
 180        command line as `<commit>`.
 181
 182--ignore-missing::
 183        Upon seeing an invalid object name in the input, pretend as if
 184        the bad input was not given.
 185
 186ifndef::git-rev-list[]
 187--bisect::
 188        Pretend as if the bad bisection ref `refs/bisect/bad`
 189        was listed and as if it was followed by `--not` and the good
 190        bisection refs `refs/bisect/good-*` on the command
 191        line. Cannot be combined with --first-parent.
 192endif::git-rev-list[]
 193
 194--stdin::
 195        In addition to the '<commit>' listed on the command
 196        line, read them from the standard input. If a '--' separator is
 197        seen, stop reading commits and start reading paths to limit the
 198        result.
 199
 200ifdef::git-rev-list[]
 201--quiet::
 202        Don't print anything to standard output.  This form
 203        is primarily meant to allow the caller to
 204        test the exit status to see if a range of objects is fully
 205        connected (or not).  It is faster than redirecting stdout
 206        to `/dev/null` as the output does not have to be formatted.
 207endif::git-rev-list[]
 208
 209--cherry-mark::
 210        Like `--cherry-pick` (see below) but mark equivalent commits
 211        with `=` rather than omitting them, and inequivalent ones with `+`.
 212
 213--cherry-pick::
 214        Omit any commit that introduces the same change as
 215        another commit on the ``other side'' when the set of
 216        commits are limited with symmetric difference.
 217+
 218For example, if you have two branches, `A` and `B`, a usual way
 219to list all commits on only one side of them is with
 220`--left-right` (see the example below in the description of
 221the `--left-right` option). However, it shows the commits that were
 222cherry-picked from the other branch (for example, ``3rd on b'' may be
 223cherry-picked from branch A). With this option, such pairs of commits are
 224excluded from the output.
 225
 226--left-only::
 227--right-only::
 228        List only commits on the respective side of a symmetric range,
 229        i.e. only those which would be marked `<` resp. `>` by
 230        `--left-right`.
 231+
 232For example, `--cherry-pick --right-only A...B` omits those
 233commits from `B` which are in `A` or are patch-equivalent to a commit in
 234`A`. In other words, this lists the `+` commits from `git cherry A B`.
 235More precisely, `--cherry-pick --right-only --no-merges` gives the exact
 236list.
 237
 238--cherry::
 239        A synonym for `--right-only --cherry-mark --no-merges`; useful to
 240        limit the output to the commits on our side and mark those that
 241        have been applied to the other side of a forked history with
 242        `git log --cherry upstream...mybranch`, similar to
 243        `git cherry upstream mybranch`.
 244
 245-g::
 246--walk-reflogs::
 247        Instead of walking the commit ancestry chain, walk
 248        reflog entries from the most recent one to older ones.
 249        When this option is used you cannot specify commits to
 250        exclude (that is, '{caret}commit', 'commit1..commit2',
 251        and 'commit1\...commit2' notations cannot be used).
 252+
 253With `--pretty` format other than `oneline` (for obvious reasons),
 254this causes the output to have two extra lines of information
 255taken from the reflog.  By default, 'commit@\{Nth}' notation is
 256used in the output.  When the starting commit is specified as
 257'commit@\{now}', output also uses 'commit@\{timestamp}' notation
 258instead.  Under `--pretty=oneline`, the commit message is
 259prefixed with this information on the same line.
 260This option cannot be combined with `--reverse`.
 261See also linkgit:git-reflog[1].
 262
 263--merge::
 264        After a failed merge, show refs that touch files having a
 265        conflict and don't exist on all heads to merge.
 266
 267--boundary::
 268        Output excluded boundary commits. Boundary commits are
 269        prefixed with `-`.
 270
 271ifdef::git-rev-list[]
 272--use-bitmap-index::
 273
 274        Try to speed up the traversal using the pack bitmap index (if
 275        one is available). Note that when traversing with `--objects`,
 276        trees and blobs will not have their associated path printed.
 277endif::git-rev-list[]
 278
 279--
 280
 281History Simplification
 282~~~~~~~~~~~~~~~~~~~~~~
 283
 284Sometimes you are only interested in parts of the history, for example the
 285commits modifying a particular <path>. But there are two parts of
 286'History Simplification', one part is selecting the commits and the other
 287is how to do it, as there are various strategies to simplify the history.
 288
 289The following options select the commits to be shown:
 290
 291<paths>::
 292        Commits modifying the given <paths> are selected.
 293
 294--simplify-by-decoration::
 295        Commits that are referred by some branch or tag are selected.
 296
 297Note that extra commits can be shown to give a meaningful history.
 298
 299The following options affect the way the simplification is performed:
 300
 301Default mode::
 302        Simplifies the history to the simplest history explaining the
 303        final state of the tree. Simplest because it prunes some side
 304        branches if the end result is the same (i.e. merging branches
 305        with the same content)
 306
 307--full-history::
 308        Same as the default mode, but does not prune some history.
 309
 310--dense::
 311        Only the selected commits are shown, plus some to have a
 312        meaningful history.
 313
 314--sparse::
 315        All commits in the simplified history are shown.
 316
 317--simplify-merges::
 318        Additional option to `--full-history` to remove some needless
 319        merges from the resulting history, as there are no selected
 320        commits contributing to this merge.
 321
 322--ancestry-path::
 323        When given a range of commits to display (e.g. 'commit1..commit2'
 324        or 'commit2 {caret}commit1'), only display commits that exist
 325        directly on the ancestry chain between the 'commit1' and
 326        'commit2', i.e. commits that are both descendants of 'commit1',
 327        and ancestors of 'commit2'.
 328
 329A more detailed explanation follows.
 330
 331Suppose you specified `foo` as the <paths>.  We shall call commits
 332that modify `foo` !TREESAME, and the rest TREESAME.  (In a diff
 333filtered for `foo`, they look different and equal, respectively.)
 334
 335In the following, we will always refer to the same example history to
 336illustrate the differences between simplification settings.  We assume
 337that you are filtering for a file `foo` in this commit graph:
 338-----------------------------------------------------------------------
 339          .-A---M---N---O---P---Q
 340         /     /   /   /   /   /
 341        I     B   C   D   E   Y
 342         \   /   /   /   /   /
 343          `-------------'   X
 344-----------------------------------------------------------------------
 345The horizontal line of history A---Q is taken to be the first parent of
 346each merge.  The commits are:
 347
 348* `I` is the initial commit, in which `foo` exists with contents
 349  ``asdf'', and a file `quux` exists with contents ``quux''. Initial
 350  commits are compared to an empty tree, so `I` is !TREESAME.
 351
 352* In `A`, `foo` contains just ``foo''.
 353
 354* `B` contains the same change as `A`.  Its merge `M` is trivial and
 355  hence TREESAME to all parents.
 356
 357* `C` does not change `foo`, but its merge `N` changes it to ``foobar'',
 358  so it is not TREESAME to any parent.
 359
 360* `D` sets `foo` to ``baz''. Its merge `O` combines the strings from
 361  `N` and `D` to ``foobarbaz''; i.e., it is not TREESAME to any parent.
 362
 363* `E` changes `quux` to ``xyzzy'', and its merge `P` combines the
 364  strings to ``quux xyzzy''. `P` is TREESAME to `O`, but not to `E`.
 365
 366* `X` is an independent root commit that added a new file `side`, and `Y`
 367  modified it. `Y` is TREESAME to `X`. Its merge `Q` added `side` to `P`, and
 368  `Q` is TREESAME to `P`, but not to `Y`.
 369
 370`rev-list` walks backwards through history, including or excluding
 371commits based on whether `--full-history` and/or parent rewriting
 372(via `--parents` or `--children`) are used. The following settings
 373are available.
 374
 375Default mode::
 376        Commits are included if they are not TREESAME to any parent
 377        (though this can be changed, see `--sparse` below).  If the
 378        commit was a merge, and it was TREESAME to one parent, follow
 379        only that parent.  (Even if there are several TREESAME
 380        parents, follow only one of them.)  Otherwise, follow all
 381        parents.
 382+
 383This results in:
 384+
 385-----------------------------------------------------------------------
 386          .-A---N---O
 387         /     /   /
 388        I---------D
 389-----------------------------------------------------------------------
 390+
 391Note how the rule to only follow the TREESAME parent, if one is
 392available, removed `B` from consideration entirely.  `C` was
 393considered via `N`, but is TREESAME.  Root commits are compared to an
 394empty tree, so `I` is !TREESAME.
 395+
 396Parent/child relations are only visible with `--parents`, but that does
 397not affect the commits selected in default mode, so we have shown the
 398parent lines.
 399
 400--full-history without parent rewriting::
 401        This mode differs from the default in one point: always follow
 402        all parents of a merge, even if it is TREESAME to one of them.
 403        Even if more than one side of the merge has commits that are
 404        included, this does not imply that the merge itself is!  In
 405        the example, we get
 406+
 407-----------------------------------------------------------------------
 408        I  A  B  N  D  O  P  Q
 409-----------------------------------------------------------------------
 410+
 411`M` was excluded because it is TREESAME to both parents.  `E`,
 412`C` and `B` were all walked, but only `B` was !TREESAME, so the others
 413do not appear.
 414+
 415Note that without parent rewriting, it is not really possible to talk
 416about the parent/child relationships between the commits, so we show
 417them disconnected.
 418
 419--full-history with parent rewriting::
 420        Ordinary commits are only included if they are !TREESAME
 421        (though this can be changed, see `--sparse` below).
 422+
 423Merges are always included.  However, their parent list is rewritten:
 424Along each parent, prune away commits that are not included
 425themselves.  This results in
 426+
 427-----------------------------------------------------------------------
 428          .-A---M---N---O---P---Q
 429         /     /   /   /   /
 430        I     B   /   D   /
 431         \   /   /   /   /
 432          `-------------'
 433-----------------------------------------------------------------------
 434+
 435Compare to `--full-history` without rewriting above.  Note that `E`
 436was pruned away because it is TREESAME, but the parent list of P was
 437rewritten to contain `E`'s parent `I`.  The same happened for `C` and
 438`N`, and `X`, `Y` and `Q`.
 439
 440In addition to the above settings, you can change whether TREESAME
 441affects inclusion:
 442
 443--dense::
 444        Commits that are walked are included if they are not TREESAME
 445        to any parent.
 446
 447--sparse::
 448        All commits that are walked are included.
 449+
 450Note that without `--full-history`, this still simplifies merges: if
 451one of the parents is TREESAME, we follow only that one, so the other
 452sides of the merge are never walked.
 453
 454--simplify-merges::
 455        First, build a history graph in the same way that
 456        `--full-history` with parent rewriting does (see above).
 457+
 458Then simplify each commit `C` to its replacement `C'` in the final
 459history according to the following rules:
 460+
 461--
 462* Set `C'` to `C`.
 463+
 464* Replace each parent `P` of `C'` with its simplification `P'`.  In
 465  the process, drop parents that are ancestors of other parents or that are
 466  root commits TREESAME to an empty tree, and remove duplicates, but take care
 467  to never drop all parents that we are TREESAME to.
 468+
 469* If after this parent rewriting, `C'` is a root or merge commit (has
 470  zero or >1 parents), a boundary commit, or !TREESAME, it remains.
 471  Otherwise, it is replaced with its only parent.
 472--
 473+
 474The effect of this is best shown by way of comparing to
 475`--full-history` with parent rewriting.  The example turns into:
 476+
 477-----------------------------------------------------------------------
 478          .-A---M---N---O
 479         /     /       /
 480        I     B       D
 481         \   /       /
 482          `---------'
 483-----------------------------------------------------------------------
 484+
 485Note the major differences in `N`, `P`, and `Q` over `--full-history`:
 486+
 487--
 488* `N`'s parent list had `I` removed, because it is an ancestor of the
 489  other parent `M`.  Still, `N` remained because it is !TREESAME.
 490+
 491* `P`'s parent list similarly had `I` removed.  `P` was then
 492  removed completely, because it had one parent and is TREESAME.
 493+
 494* `Q`'s parent list had `Y` simplified to `X`. `X` was then removed, because it
 495  was a TREESAME root. `Q` was then removed completely, because it had one
 496  parent and is TREESAME.
 497--
 498
 499Finally, there is a fifth simplification mode available:
 500
 501--ancestry-path::
 502        Limit the displayed commits to those directly on the ancestry
 503        chain between the ``from'' and ``to'' commits in the given commit
 504        range. I.e. only display commits that are ancestor of the ``to''
 505        commit and descendants of the ``from'' commit.
 506+
 507As an example use case, consider the following commit history:
 508+
 509-----------------------------------------------------------------------
 510            D---E-------F
 511           /     \       \
 512          B---C---G---H---I---J
 513         /                     \
 514        A-------K---------------L--M
 515-----------------------------------------------------------------------
 516+
 517A regular 'D..M' computes the set of commits that are ancestors of `M`,
 518but excludes the ones that are ancestors of `D`. This is useful to see
 519what happened to the history leading to `M` since `D`, in the sense
 520that ``what does `M` have that did not exist in `D`''. The result in this
 521example would be all the commits, except `A` and `B` (and `D` itself,
 522of course).
 523+
 524When we want to find out what commits in `M` are contaminated with the
 525bug introduced by `D` and need fixing, however, we might want to view
 526only the subset of 'D..M' that are actually descendants of `D`, i.e.
 527excluding `C` and `K`. This is exactly what the `--ancestry-path`
 528option does. Applied to the 'D..M' range, it results in:
 529+
 530-----------------------------------------------------------------------
 531                E-------F
 532                 \       \
 533                  G---H---I---J
 534                               \
 535                                L--M
 536-----------------------------------------------------------------------
 537
 538The `--simplify-by-decoration` option allows you to view only the
 539big picture of the topology of the history, by omitting commits
 540that are not referenced by tags.  Commits are marked as !TREESAME
 541(in other words, kept after history simplification rules described
 542above) if (1) they are referenced by tags, or (2) they change the
 543contents of the paths given on the command line.  All other
 544commits are marked as TREESAME (subject to be simplified away).
 545
 546ifdef::git-rev-list[]
 547Bisection Helpers
 548~~~~~~~~~~~~~~~~~
 549
 550--bisect::
 551        Limit output to the one commit object which is roughly halfway between
 552        included and excluded commits. Note that the bad bisection ref
 553        `refs/bisect/bad` is added to the included commits (if it
 554        exists) and the good bisection refs `refs/bisect/good-*` are
 555        added to the excluded commits (if they exist). Thus, supposing there
 556        are no refs in `refs/bisect/`, if
 557+
 558-----------------------------------------------------------------------
 559        $ git rev-list --bisect foo ^bar ^baz
 560-----------------------------------------------------------------------
 561+
 562outputs 'midpoint', the output of the two commands
 563+
 564-----------------------------------------------------------------------
 565        $ git rev-list foo ^midpoint
 566        $ git rev-list midpoint ^bar ^baz
 567-----------------------------------------------------------------------
 568+
 569would be of roughly the same length.  Finding the change which
 570introduces a regression is thus reduced to a binary search: repeatedly
 571generate and test new 'midpoint's until the commit chain is of length
 572one. Cannot be combined with --first-parent.
 573
 574--bisect-vars::
 575        This calculates the same as `--bisect`, except that refs in
 576        `refs/bisect/` are not used, and except that this outputs
 577        text ready to be eval'ed by the shell. These lines will assign the
 578        name of the midpoint revision to the variable `bisect_rev`, and the
 579        expected number of commits to be tested after `bisect_rev` is tested
 580        to `bisect_nr`, the expected number of commits to be tested if
 581        `bisect_rev` turns out to be good to `bisect_good`, the expected
 582        number of commits to be tested if `bisect_rev` turns out to be bad to
 583        `bisect_bad`, and the number of commits we are bisecting right now to
 584        `bisect_all`.
 585
 586--bisect-all::
 587        This outputs all the commit objects between the included and excluded
 588        commits, ordered by their distance to the included and excluded
 589        commits. Refs in `refs/bisect/` are not used. The farthest
 590        from them is displayed first. (This is the only one displayed by
 591        `--bisect`.)
 592+
 593This is useful because it makes it easy to choose a good commit to
 594test when you want to avoid to test some of them for some reason (they
 595may not compile for example).
 596+
 597This option can be used along with `--bisect-vars`, in this case,
 598after all the sorted commit objects, there will be the same text as if
 599`--bisect-vars` had been used alone.
 600endif::git-rev-list[]
 601
 602
 603Commit Ordering
 604~~~~~~~~~~~~~~~
 605
 606By default, the commits are shown in reverse chronological order.
 607
 608--date-order::
 609        Show no parents before all of its children are shown, but
 610        otherwise show commits in the commit timestamp order.
 611
 612--author-date-order::
 613        Show no parents before all of its children are shown, but
 614        otherwise show commits in the author timestamp order.
 615
 616--topo-order::
 617        Show no parents before all of its children are shown, and
 618        avoid showing commits on multiple lines of history
 619        intermixed.
 620+
 621For example, in a commit history like this:
 622+
 623----------------------------------------------------------------
 624
 625    ---1----2----4----7
 626        \              \
 627         3----5----6----8---
 628
 629----------------------------------------------------------------
 630+
 631where the numbers denote the order of commit timestamps, `git
 632rev-list` and friends with `--date-order` show the commits in the
 633timestamp order: 8 7 6 5 4 3 2 1.
 634+
 635With `--topo-order`, they would show 8 6 5 3 7 4 2 1 (or 8 7 4 2 6 5
 6363 1); some older commits are shown before newer ones in order to
 637avoid showing the commits from two parallel development track mixed
 638together.
 639
 640--reverse::
 641        Output the commits in reverse order.
 642        Cannot be combined with `--walk-reflogs`.
 643
 644Object Traversal
 645~~~~~~~~~~~~~~~~
 646
 647These options are mostly targeted for packing of Git repositories.
 648
 649ifdef::git-rev-list[]
 650--objects::
 651        Print the object IDs of any object referenced by the listed
 652        commits.  `--objects foo ^bar` thus means ``send me
 653        all object IDs which I need to download if I have the commit
 654        object _bar_ but not _foo_''.
 655
 656--objects-edge::
 657        Similar to `--objects`, but also print the IDs of excluded
 658        commits prefixed with a ``-'' character.  This is used by
 659        linkgit:git-pack-objects[1] to build a ``thin'' pack, which records
 660        objects in deltified form based on objects contained in these
 661        excluded commits to reduce network traffic.
 662
 663--objects-edge-aggressive::
 664        Similar to `--objects-edge`, but it tries harder to find excluded
 665        commits at the cost of increased time.  This is used instead of
 666        `--objects-edge` to build ``thin'' packs for shallow repositories.
 667
 668--indexed-objects::
 669        Pretend as if all trees and blobs used by the index are listed
 670        on the command line.  Note that you probably want to use
 671        `--objects`, too.
 672
 673--unpacked::
 674        Only useful with `--objects`; print the object IDs that are not
 675        in packs.
 676endif::git-rev-list[]
 677
 678--no-walk[=(sorted|unsorted)]::
 679        Only show the given commits, but do not traverse their ancestors.
 680        This has no effect if a range is specified. If the argument
 681        `unsorted` is given, the commits are shown in the order they were
 682        given on the command line. Otherwise (if `sorted` or no argument
 683        was given), the commits are shown in reverse chronological order
 684        by commit time.
 685        Cannot be combined with `--graph`.
 686
 687--do-walk::
 688        Overrides a previous `--no-walk`.
 689
 690Commit Formatting
 691~~~~~~~~~~~~~~~~~
 692
 693ifdef::git-rev-list[]
 694Using these options, linkgit:git-rev-list[1] will act similar to the
 695more specialized family of commit log tools: linkgit:git-log[1],
 696linkgit:git-show[1], and linkgit:git-whatchanged[1]
 697endif::git-rev-list[]
 698
 699include::pretty-options.txt[]
 700
 701--relative-date::
 702        Synonym for `--date=relative`.
 703
 704--date=<format>::
 705        Only takes effect for dates shown in human-readable format, such
 706        as when using `--pretty`. `log.date` config variable sets a default
 707        value for the log command's `--date` option. By default, dates
 708        are shown in the original time zone (either committer's or
 709        author's). If `-local` is appended to the format (e.g.,
 710        `iso-local`), the user's local time zone is used instead.
 711+
 712`--date=relative` shows dates relative to the current time,
 713e.g. ``2 hours ago''. The `-local` option cannot be used with
 714`--raw` or `--relative`.
 715+
 716`--date=local` is an alias for `--date=default-local`.
 717+
 718`--date=iso` (or `--date=iso8601`) shows timestamps in a ISO 8601-like format.
 719The differences to the strict ISO 8601 format are:
 720
 721        - a space instead of the `T` date/time delimiter
 722        - a space between time and time zone
 723        - no colon between hours and minutes of the time zone
 724
 725+
 726`--date=iso-strict` (or `--date=iso8601-strict`) shows timestamps in strict
 727ISO 8601 format.
 728+
 729`--date=rfc` (or `--date=rfc2822`) shows timestamps in RFC 2822
 730format, often found in email messages.
 731+
 732`--date=short` shows only the date, but not the time, in `YYYY-MM-DD` format.
 733+
 734`--date=raw` shows the date in the internal raw Git format `%s %z` format.
 735+
 736`--date=format:...` feeds the format `...` to your system `strftime`.
 737Use `--date=format:%c` to show the date in your system locale's
 738preferred format.  See the `strftime` manual for a complete list of
 739format placeholders. When using `-local`, the correct syntax is
 740`--date=format-local:...`.
 741+
 742`--date=default` is the default format, and is similar to
 743`--date=rfc2822`, with a few exceptions:
 744
 745        - there is no comma after the day-of-week
 746
 747        - the time zone is omitted when the local time zone is used
 748
 749ifdef::git-rev-list[]
 750--header::
 751        Print the contents of the commit in raw-format; each record is
 752        separated with a NUL character.
 753endif::git-rev-list[]
 754
 755--parents::
 756        Print also the parents of the commit (in the form "commit parent...").
 757        Also enables parent rewriting, see 'History Simplification' below.
 758
 759--children::
 760        Print also the children of the commit (in the form "commit child...").
 761        Also enables parent rewriting, see 'History Simplification' below.
 762
 763ifdef::git-rev-list[]
 764--timestamp::
 765        Print the raw commit timestamp.
 766endif::git-rev-list[]
 767
 768--left-right::
 769        Mark which side of a symmetric diff a commit is reachable from.
 770        Commits from the left side are prefixed with `<` and those from
 771        the right with `>`.  If combined with `--boundary`, those
 772        commits are prefixed with `-`.
 773+
 774For example, if you have this topology:
 775+
 776-----------------------------------------------------------------------
 777             y---b---b  branch B
 778            / \ /
 779           /   .
 780          /   / \
 781         o---x---a---a  branch A
 782-----------------------------------------------------------------------
 783+
 784you would get an output like this:
 785+
 786-----------------------------------------------------------------------
 787        $ git rev-list --left-right --boundary --pretty=oneline A...B
 788
 789        >bbbbbbb... 3rd on b
 790        >bbbbbbb... 2nd on b
 791        <aaaaaaa... 3rd on a
 792        <aaaaaaa... 2nd on a
 793        -yyyyyyy... 1st on b
 794        -xxxxxxx... 1st on a
 795-----------------------------------------------------------------------
 796
 797--graph::
 798        Draw a text-based graphical representation of the commit history
 799        on the left hand side of the output.  This may cause extra lines
 800        to be printed in between commits, in order for the graph history
 801        to be drawn properly.
 802        Cannot be combined with `--no-walk`.
 803+
 804This enables parent rewriting, see 'History Simplification' below.
 805+
 806This implies the `--topo-order` option by default, but the
 807`--date-order` option may also be specified.
 808
 809--show-linear-break[=<barrier>]::
 810        When --graph is not used, all history branches are flattened
 811        which can make it hard to see that the two consecutive commits
 812        do not belong to a linear branch. This option puts a barrier
 813        in between them in that case. If `<barrier>` is specified, it
 814        is the string that will be shown instead of the default one.
 815
 816ifdef::git-rev-list[]
 817--count::
 818        Print a number stating how many commits would have been
 819        listed, and suppress all other output.  When used together
 820        with `--left-right`, instead print the counts for left and
 821        right commits, separated by a tab. When used together with
 822        `--cherry-mark`, omit patch equivalent commits from these
 823        counts and print the count for equivalent commits separated
 824        by a tab.
 825endif::git-rev-list[]
 826
 827ifndef::git-rev-list[]
 828Diff Formatting
 829~~~~~~~~~~~~~~~
 830
 831Listed below are options that control the formatting of diff output.
 832Some of them are specific to linkgit:git-rev-list[1], however other diff
 833options may be given. See linkgit:git-diff-files[1] for more options.
 834
 835-c::
 836        With this option, diff output for a merge commit
 837        shows the differences from each of the parents to the merge result
 838        simultaneously instead of showing pairwise diff between a parent
 839        and the result one at a time. Furthermore, it lists only files
 840        which were modified from all parents.
 841
 842--cc::
 843        This flag implies the `-c` option and further compresses the
 844        patch output by omitting uninteresting hunks whose contents in
 845        the parents have only two variants and the merge result picks
 846        one of them without modification.
 847
 848-m::
 849        This flag makes the merge commits show the full diff like
 850        regular commits; for each merge parent, a separate log entry
 851        and diff is generated. An exception is that only diff against
 852        the first parent is shown when `--first-parent` option is given;
 853        in that case, the output represents the changes the merge
 854        brought _into_ the then-current branch.
 855
 856-r::
 857        Show recursive diffs.
 858
 859-t::
 860        Show the tree objects in the diff output. This implies `-r`.
 861endif::git-rev-list[]