Documentation/git-diff-tree.txt

   1 git-diff-tree(1)
   2 ================
   3 v0.1, May 2005
   4
   5 NAME
   6 ----
   7 git-diff-tree - Compares the content and mode of blobs found via two tree objects
   8
   9
  10 SYNOPSIS
  11 --------
  12 'git-diff-tree' [-p] [-r] [-z] [--stdin] [-M] [-R] [-C] [-S<string>] [-m] [-s] [-v] <tree-ish> <tree-ish> [<pattern>]\*
  13
  14 DESCRIPTION
  15 -----------
  16 Compares the content and mode of the blobs found via two tree objects.
  17
  18 Note that "git-diff-tree" can use the tree encapsulated in a commit object.
  19
  20 OPTIONS
  21 -------
  22 <tree-ish>::
  23         The id of a tree object.
  24
  25 <pattern>::
  26         If provided, the results are limited to a subset of files
  27         matching one of these prefix strings.
  28         ie file matches `/^<pattern1>|<pattern2>|.../`
  29         Note that pattern does not provide any wildcard or regexp
  30         features.
  31
  32 -p::
  33         generate patch (see section on generating patches).  For
  34         git-diff-tree, this flag implies '-r' as well.
  35
  36 -M::
  37         Detect renames; implies -p, in turn implying also '-r'.
  38
  39 -C::
  40         Detect copies as well as renames; implies -p, in turn
  41         implying also '-r'.
  42
  43 -R::
  44         Output diff in reverse.
  45
  46 -S<string>::
  47         Look for differences that contains the change in <string>.
  48
  49 -r::
  50         recurse
  51
  52 -z::
  53         \0 line termination on output
  54
  55 --stdin::
  56         When '--stdin' is specified, the command does not take
  57         <tree-ish> arguments from the command line.  Instead, it
  58         reads either one <commit> or a pair of <tree-ish>
  59         separated with a single space from its standard input.
  60 +
  61 When a single commit is given on one line of such input, it compares
  62 the commit with its parents.  The following flags further affects its
  63 behaviour.  This does not apply to the case where two <tree-ish>
  64 separated with a single space are given.
  65
  66 -m::
  67         By default, "git-diff-tree --stdin" does not show
  68         differences for merge commits.  With this flag, it shows
  69         differences to that commit from all of its parents.
  70
  71 -s::
  72         By default, "git-diff-tree --stdin" shows differences,
  73         either in machine-readable form (without '-p') or in patch
  74         form (with '-p').  This output can be supressed.  It is
  75         only useful with '-v' flag.
  76
  77 -v::
  78         This flag causes "git-diff-tree --stdin" to also show
  79         the commit message before the differences.
  80
  81
  82 Limiting Output
  83 ---------------
  84 If you're only interested in differences in a subset of files, for
  85 example some architecture-specific files, you might do:
  86
  87         git-diff-tree -r <tree-ish> <tree-ish> arch/ia64 include/asm-ia64
  88
  89 and it will only show you what changed in those two directories.
  90
  91 Or if you are searching for what changed in just `kernel/sched.c`, just do
  92
  93         git-diff-tree -r <tree-ish> <tree-ish> kernel/sched.c
  94
  95 and it will ignore all differences to other files.
  96
  97 The pattern is always the prefix, and is matched exactly.  There are no
  98 wildcards.  Even stricter, it has to match complete path comonent.
  99 I.e. "foo" does not pick up `foobar.h`.  "foo" does match `foo/bar.h`
 100 so it can be used to name subdirectories.
 101
 102 An example of normal usage is:
 103
 104   torvalds@ppc970:~/git> git-diff-tree 5319e4......
 105   *100664->100664 blob    ac348b.......->a01513.......      git-fsck-cache.c
 106
 107 which tells you that the last commit changed just one file (it's from
 108 this one:
 109
 110   commit 3c6f7ca19ad4043e9e72fa94106f352897e651a8
 111   tree 5319e4d609cdd282069cc4dce33c1db559539b03
 112   parent b4e628ea30d5ab3606119d2ea5caeab141d38df7
 113   author Linus Torvalds <torvalds@ppc970.osdl.org> Sat Apr 9 12:02:30 2005
 114   committer Linus Torvalds <torvalds@ppc970.osdl.org> Sat Apr 9 12:02:30 2005
 115
 116   Make "git-fsck-cache" print out all the root commits it finds.
 117
 118   Once I do the reference tracking, I'll also make it print out all the
 119   HEAD commits it finds, which is even more interesting.
 120
 121 in case you care).
 122
 123 Output format
 124 -------------
 125 include::diff-format.txt[]
 126
 127
 128 Author
 129 ------
 130 Written by Linus Torvalds <torvalds@osdl.org>
 131
 132 Documentation
 133 --------------
 134 Documentation by David Greaves, Junio C Hamano and the git-list <git@vger.kernel.org>.
 135
 136 GIT
 137 ---
 138 Part of the link:git.html[git] suite
 139