6546b5931e
The --full-history traversal keeps all merges in addition to non-merge commits that touch paths in the given pathspec. This is useful to view both sides of a merge in a topology like this: A---M---o / / ---O---B even when A and B makes identical change to the given paths. The revision traversal without --full-history aims to come up with the simplest history to explain the final state of the tree, and one of the side branches can be pruned away. The behaviour to keep all merges however is inconvenient if neither A nor B touches the paths we are interested in. --full-history reduces the topology to: ---O---M---o in such a case, without removing M. This adds a post processing phase on top of --full-history traversal to remove needless merges from the resulting history. The idea is to compute, for each commit in the "full history" result set, the commit that should replace it in the simplified history. The commit to replace it in the final history is determined as follows: * In any case, we first figure out the replacement commits of parents of the commit we are looking at. The commit we are looking at is rewritten as if the replacement commits of its original parents are its parents. While doing so, we reduce the redundant parents from the rewritten parent list by not just removing the identical ones, but also removing a parent that is an ancestor of another parent. * After the above parent simplification, if the commit is a root commit, an UNINTERESTING commit, a merge commit, or modifies the paths we are interested in, then the replacement commit of the commit is itself. In other words, such a commit is not dropped from the final result. The first point above essentially means that the history is rewritten in the bottom up direction. We can rewrite the parent list of a commit only after we know how all of its parents are rewritten. This means that the processing needs to happen on the full history (i.e. after limit_list()). Signed-off-by: Junio C Hamano <gitster@pobox.com>
406 lines
12 KiB
Plaintext
406 lines
12 KiB
Plaintext
Commit Formatting
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~~~~~~~~~~~~~~~~~
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ifdef::git-rev-list[]
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Using these options, linkgit:git-rev-list[1] will act similar to the
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more specialized family of commit log tools: linkgit:git-log[1],
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linkgit:git-show[1], and linkgit:git-whatchanged[1]
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endif::git-rev-list[]
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include::pretty-options.txt[]
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--relative-date::
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Synonym for `--date=relative`.
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--date={relative,local,default,iso,rfc,short}::
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Only takes effect for dates shown in human-readable format, such
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as when using "--pretty". `log.date` config variable sets a default
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value for log command's --date option.
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+
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`--date=relative` shows dates relative to the current time,
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e.g. "2 hours ago".
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+
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`--date=local` shows timestamps in user's local timezone.
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+
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`--date=iso` (or `--date=iso8601`) shows timestamps in ISO 8601 format.
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+
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`--date=rfc` (or `--date=rfc2822`) shows timestamps in RFC 2822
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format, often found in E-mail messages.
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+
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`--date=short` shows only date but not time, in `YYYY-MM-DD` format.
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+
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`--date=default` shows timestamps in the original timezone
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(either committer's or author's).
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ifdef::git-rev-list[]
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--header::
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Print the contents of the commit in raw-format; each record is
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separated with a NUL character.
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endif::git-rev-list[]
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--parents::
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Print the parents of the commit.
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--children::
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Print the children of the commit.
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ifdef::git-rev-list[]
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--timestamp::
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Print the raw commit timestamp.
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endif::git-rev-list[]
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--left-right::
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Mark which side of a symmetric diff a commit is reachable from.
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Commits from the left side are prefixed with `<` and those from
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the right with `>`. If combined with `--boundary`, those
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commits are prefixed with `-`.
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+
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For example, if you have this topology:
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+
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-----------------------------------------------------------------------
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y---b---b branch B
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/ \ /
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/ .
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/ / \
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o---x---a---a branch A
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-----------------------------------------------------------------------
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+
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you would get an output line this:
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+
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-----------------------------------------------------------------------
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$ git rev-list --left-right --boundary --pretty=oneline A...B
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>bbbbbbb... 3rd on b
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>bbbbbbb... 2nd on b
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<aaaaaaa... 3rd on a
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<aaaaaaa... 2nd on a
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-yyyyyyy... 1st on b
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-xxxxxxx... 1st on a
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-----------------------------------------------------------------------
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--graph::
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Draw a text-based graphical representation of the commit history
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on the left hand side of the output. This may cause extra lines
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to be printed in between commits, in order for the graph history
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to be drawn properly.
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+
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This implies the '--topo-order' option by default, but the
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'--date-order' option may also be specified.
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Diff Formatting
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~~~~~~~~~~~~~~~
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Below are listed options that control the formatting of diff output.
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Some of them are specific to linkgit:git-rev-list[1], however other diff
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options may be given. See linkgit:git-diff-files[1] for more options.
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-c::
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This flag changes the way a merge commit is displayed. It shows
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the differences from each of the parents to the merge result
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simultaneously instead of showing pairwise diff between a parent
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and the result one at a time. Furthermore, it lists only files
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which were modified from all parents.
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--cc::
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This flag implies the '-c' options and further compresses the
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patch output by omitting uninteresting hunks whose contents in
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the parents have only two variants and the merge result picks
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one of them without modification.
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-r::
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Show recursive diffs.
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-t::
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Show the tree objects in the diff output. This implies '-r'.
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Commit Limiting
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~~~~~~~~~~~~~~~
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Besides specifying a range of commits that should be listed using the
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special notations explained in the description, additional commit
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limiting may be applied.
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--
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-n 'number'::
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--max-count='number'::
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Limit the number of commits output.
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--skip='number'::
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Skip 'number' commits before starting to show the commit output.
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--since='date'::
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--after='date'::
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Show commits more recent than a specific date.
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--until='date'::
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--before='date'::
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Show commits older than a specific date.
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ifdef::git-rev-list[]
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--max-age='timestamp'::
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--min-age='timestamp'::
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Limit the commits output to specified time range.
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endif::git-rev-list[]
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--author='pattern'::
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--committer='pattern'::
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Limit the commits output to ones with author/committer
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header lines that match the specified pattern (regular expression).
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--grep='pattern'::
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Limit the commits output to ones with log message that
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matches the specified pattern (regular expression).
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-i::
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--regexp-ignore-case::
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Match the regexp limiting patterns without regard to letters case.
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-E::
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--extended-regexp::
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Consider the limiting patterns to be extended regular expressions
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instead of the default basic regular expressions.
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-F::
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--fixed-strings::
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Consider the limiting patterns to be fixed strings (don't interpret
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pattern as a regular expression).
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--remove-empty::
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Stop when a given path disappears from the tree.
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--full-history::
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Show also parts of history irrelevant to current state of given
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paths. This turns off history simplification, which removed merges
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which didn't change anything at all at some child. It will still actually
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simplify away merges that didn't change anything at all into either
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child.
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--simplify-merges::
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Simplify away commits that did not change the given paths, similar
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to `--full-history`, and further remove merges none of whose
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parent history changes the given paths.
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--no-merges::
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Do not print commits with more than one parent.
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--first-parent::
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Follow only the first parent commit upon seeing a merge
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commit. This option can give a better overview when
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viewing the evolution of a particular topic branch,
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because merges into a topic branch tend to be only about
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adjusting to updated upstream from time to time, and
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this option allows you to ignore the individual commits
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brought in to your history by such a merge.
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--not::
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Reverses the meaning of the '{caret}' prefix (or lack thereof)
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for all following revision specifiers, up to the next '--not'.
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--all::
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Pretend as if all the refs in `$GIT_DIR/refs/` are listed on the
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command line as '<commit>'.
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ifdef::git-rev-list[]
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--stdin::
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In addition to the '<commit>' listed on the command
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line, read them from the standard input.
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--quiet::
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Don't print anything to standard output. This form
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is primarily meant to allow the caller to
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test the exit status to see if a range of objects is fully
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connected (or not). It is faster than redirecting stdout
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to /dev/null as the output does not have to be formatted.
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endif::git-rev-list[]
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--cherry-pick::
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Omit any commit that introduces the same change as
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another commit on the "other side" when the set of
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commits are limited with symmetric difference.
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+
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For example, if you have two branches, `A` and `B`, a usual way
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to list all commits on only one side of them is with
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`--left-right`, like the example above in the description of
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that option. It however shows the commits that were cherry-picked
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from the other branch (for example, "3rd on b" may be cherry-picked
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from branch A). With this option, such pairs of commits are
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excluded from the output.
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-g::
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--walk-reflogs::
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Instead of walking the commit ancestry chain, walk
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reflog entries from the most recent one to older ones.
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When this option is used you cannot specify commits to
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exclude (that is, '{caret}commit', 'commit1..commit2',
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nor 'commit1...commit2' notations cannot be used).
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+
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With '\--pretty' format other than oneline (for obvious reasons),
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this causes the output to have two extra lines of information
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taken from the reflog. By default, 'commit@\{Nth}' notation is
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used in the output. When the starting commit is specified as
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'commit@{now}', output also uses 'commit@\{timestamp}' notation
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instead. Under '\--pretty=oneline', the commit message is
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prefixed with this information on the same line.
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Cannot be combined with '\--reverse'.
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See also linkgit:git-reflog[1].
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--merge::
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After a failed merge, show refs that touch files having a
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conflict and don't exist on all heads to merge.
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--boundary::
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Output uninteresting commits at the boundary, which are usually
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not shown.
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--dense::
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--sparse::
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When optional paths are given, the default behaviour ('--dense') is to
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only output commits that changes at least one of them, and also ignore
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merges that do not touch the given paths.
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Use the '--sparse' flag to makes the command output all eligible commits
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(still subject to count and age limitation), but apply merge
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simplification nevertheless.
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ifdef::git-rev-list[]
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--bisect::
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Limit output to the one commit object which is roughly halfway between
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the included and excluded commits. Thus, if
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-----------------------------------------------------------------------
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$ git-rev-list --bisect foo ^bar ^baz
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-----------------------------------------------------------------------
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outputs 'midpoint', the output of the two commands
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-----------------------------------------------------------------------
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$ git-rev-list foo ^midpoint
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$ git-rev-list midpoint ^bar ^baz
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-----------------------------------------------------------------------
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would be of roughly the same length. Finding the change which
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introduces a regression is thus reduced to a binary search: repeatedly
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generate and test new 'midpoint's until the commit chain is of length
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one.
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--bisect-vars::
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This calculates the same as `--bisect`, but outputs text ready
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to be eval'ed by the shell. These lines will assign the name of
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the midpoint revision to the variable `bisect_rev`, and the
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expected number of commits to be tested after `bisect_rev` is
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tested to `bisect_nr`, the expected number of commits to be
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tested if `bisect_rev` turns out to be good to `bisect_good`,
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the expected number of commits to be tested if `bisect_rev`
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turns out to be bad to `bisect_bad`, and the number of commits
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we are bisecting right now to `bisect_all`.
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--bisect-all::
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This outputs all the commit objects between the included and excluded
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commits, ordered by their distance to the included and excluded
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commits. The farthest from them is displayed first. (This is the only
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one displayed by `--bisect`.)
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This is useful because it makes it easy to choose a good commit to
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test when you want to avoid to test some of them for some reason (they
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may not compile for example).
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This option can be used along with `--bisect-vars`, in this case,
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after all the sorted commit objects, there will be the same text as if
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`--bisect-vars` had been used alone.
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endif::git-rev-list[]
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--
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Commit Ordering
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~~~~~~~~~~~~~~~
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By default, the commits are shown in reverse chronological order.
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--topo-order::
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This option makes them appear in topological order (i.e.
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descendant commits are shown before their parents).
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--date-order::
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This option is similar to '--topo-order' in the sense that no
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parent comes before all of its children, but otherwise things
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are still ordered in the commit timestamp order.
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--reverse::
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Output the commits in reverse order.
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Cannot be combined with '\--walk-reflogs'.
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Object Traversal
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~~~~~~~~~~~~~~~~
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These options are mostly targeted for packing of git repositories.
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--objects::
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Print the object IDs of any object referenced by the listed
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commits. '--objects foo ^bar' thus means "send me
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all object IDs which I need to download if I have the commit
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object 'bar', but not 'foo'".
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--objects-edge::
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Similar to '--objects', but also print the IDs of excluded
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commits prefixed with a "-" character. This is used by
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linkgit:git-pack-objects[1] to build "thin" pack, which records
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objects in deltified form based on objects contained in these
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excluded commits to reduce network traffic.
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--unpacked::
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Only useful with '--objects'; print the object IDs that are not
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in packs.
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--no-walk::
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Only show the given revs, but do not traverse their ancestors.
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--do-walk::
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Overrides a previous --no-walk.
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