1git-diff-tree(1) 2================ 3v0.1, May 2005 4 5NAME 6---- 7git-diff-tree - Compares the content and mode of blobs found via two tree objects 8 9 10SYNOPSIS 11-------- 12'git-diff-tree' [-p] [-r] [-z] [--stdin] [-M] [-R] [-C] [-S<string>] [-m] [-s] [-v] <tree-ish> <tree-ish> [<pattern>]\* 13 14DESCRIPTION 15----------- 16Compares the content and mode of the blobs found via two tree objects. 17 18Note that "git-diff-tree" can use the tree encapsulated in a commit object. 19 20OPTIONS 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+ 61When a single commit is given on one line of such input, it compares 62the commit with its parents. The following flags further affects its 63behaviour. This does not apply to the case where two <tree-ish> 64separated 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 82Limiting Output 83--------------- 84If you're only interested in differences in a subset of files, for 85example some architecture-specific files, you might do: 86 87 git-diff-tree -r <tree-ish> <tree-ish> arch/ia64 include/asm-ia64 88 89and it will only show you what changed in those two directories. 90 91Or 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 95and it will ignore all differences to other files. 96 97The pattern is always the prefix, and is matched exactly. There are no 98wildcards. Even stricter, it has to match complete path comonent. 99I.e. "foo" does not pick up `foobar.h`. "foo" does match `foo/bar.h` 100so it can be used to name subdirectories. 101 102An 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 107which tells you that the last commit changed just one file (it's from 108this 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 121in case you care). 122 123Output format 124------------- 125include::diff-format.txt[] 126 127 128Author 129------ 130Written by Linus Torvalds <torvalds@osdl.org> 131 132Documentation 133-------------- 134Documentation by David Greaves, Junio C Hamano and the git-list <git@vger.kernel.org>. 135 136GIT 137--- 138Part of the link:git.html[git] suite 139