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127 lines
3.5 KiB
127 lines
3.5 KiB
20 years ago
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git-diff-tree(1)
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================
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v0.1, May 2005
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NAME
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----
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git-diff-tree - Compares the content and mode of blobs found via two tree objects
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SYNOPSIS
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--------
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'git-diff-tree' [-p] [-r] [-z] [--stdin] [-m] [-s] [-v] <tree-ish> <tree-ish> [<pattern>]\*
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DESCRIPTION
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-----------
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Compares the content and mode of the blobs found via two tree objects.
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Note that "git-diff-tree" can use the tree encapsulated in a commit object.
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OPTIONS
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-------
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<tree-ish>::
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The id of a tree object.
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<pattern>::
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If provided, the results are limited to a subset of files
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matching one of these prefix strings.
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ie file matches `/^<pattern1>|<pattern2>|.../`
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Note that pattern does not provide any wildcard or regexp
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features.
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-p::
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generate patch (see section on generating patches). For
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git-diff-tree, this flag implies '-r' as well.
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-r::
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recurse
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-z::
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\0 line termination on output
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--stdin::
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When '--stdin' is specified, the command does not take
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<tree-ish> arguments from the command line. Instead, it
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reads either one <commit> or a pair of <tree-ish>
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separated with a single space from its standard input.
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+
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When a single commit is given on one line of such input, it compares
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the commit with its parents. The following flags further affects its
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behaviour. This does not apply to the case where two <tree-ish>
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separated with a single space are given.
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-m::
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By default, "git-diff-tree --stdin" does not show
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differences for merge commits. With this flag, it shows
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differences to that commit from all of its parents.
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-s::
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By default, "git-diff-tree --stdin" shows differences,
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either in machine-readable form (without '-p') or in patch
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form (with '-p'). This output can be supressed. It is
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only useful with '-v' flag.
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-v::
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This flag causes "git-diff-tree --stdin" to also show
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the commit message before the differences.
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Limiting Output
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---------------
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If you're only interested in differences in a subset of files, for
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example some architecture-specific files, you might do:
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git-diff-tree -r <tree-ish> <tree-ish> arch/ia64 include/asm-ia64
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and it will only show you what changed in those two directories.
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Or if you are searching for what changed in just `kernel/sched.c`, just do
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git-diff-tree -r <tree-ish> <tree-ish> kernel/sched.c
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and it will ignore all differences to other files.
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The pattern is always the prefix, and is matched exactly. There are no
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wildcards. Even stricter, it has to match complete path comonent.
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I.e. "foo" does not pick up `foobar.h`. "foo" does match `foo/bar.h`
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so it can be used to name subdirectories.
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An example of normal usage is:
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torvalds@ppc970:~/git> git-diff-tree 5319e4......
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*100664->100664 blob ac348b.......->a01513....... git-fsck-cache.c
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which tells you that the last commit changed just one file (it's from
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this one:
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commit 3c6f7ca19ad4043e9e72fa94106f352897e651a8
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tree 5319e4d609cdd282069cc4dce33c1db559539b03
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parent b4e628ea30d5ab3606119d2ea5caeab141d38df7
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author Linus Torvalds <torvalds@ppc970.osdl.org> Sat Apr 9 12:02:30 2005
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committer Linus Torvalds <torvalds@ppc970.osdl.org> Sat Apr 9 12:02:30 2005
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Make "git-fsck-cache" print out all the root commits it finds.
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Once I do the reference tracking, I'll also make it print out all the
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HEAD commits it finds, which is even more interesting.
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in case you care).
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Output format
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-------------
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include::diff-format.txt[]
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Author
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------
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Written by Linus Torvalds <torvalds@osdl.org>
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Documentation
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--------------
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Documentation by David Greaves, Junio C Hamano and the git-list <git@vger.kernel.org>.
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GIT
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---
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Part of the link:git.html[git] suite
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