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>] [--pickaxe-all] [-m] [-s] [-v] [-t] <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. 38 39-C:: 40 Detect copies as well as renames. 41 42-R:: 43 Output diff in reverse. 44 45-S<string>:: 46 Look for differences that contains the change in <string>. 47 48--pickaxe-all:: 49 When -S finds a change, show all the changes in that 50 changeset, not just the files that contains the change 51 in <string>. 52 53-r:: 54 recurse 55 56-t:: 57 show tree entry itself as well as subtrees. Implies -r. 58 59-z:: 60 \0 line termination on output 61 62--root:: 63 When '--root' is specified the initial commit will be showed as a big 64 creation event. This is equivalent to a diff against the NULL tree. 65 66--stdin:: 67 When '--stdin' is specified, the command does not take 68 <tree-ish> arguments from the command line. Instead, it 69 reads either one <commit> or a pair of <tree-ish> 70 separated with a single space from its standard input. 71+ 72When a single commit is given on one line of such input, it compares 73the commit with its parents. The following flags further affects its 74behaviour. This does not apply to the case where two <tree-ish> 75separated with a single space are given. 76 77-m:: 78 By default, "git-diff-tree --stdin" does not show 79 differences for merge commits. With this flag, it shows 80 differences to that commit from all of its parents. 81 82-s:: 83 By default, "git-diff-tree --stdin" shows differences, 84 either in machine-readable form (without '-p') or in patch 85 form (with '-p'). This output can be supressed. It is 86 only useful with '-v' flag. 87 88-v:: 89 This flag causes "git-diff-tree --stdin" to also show 90 the commit message before the differences. 91 92 93Limiting Output 94--------------- 95If you're only interested in differences in a subset of files, for 96example some architecture-specific files, you might do: 97 98 git-diff-tree -r <tree-ish> <tree-ish> arch/ia64 include/asm-ia64 99 100and it will only show you what changed in those two directories. 101 102Or if you are searching for what changed in just `kernel/sched.c`, just do 103 104 git-diff-tree -r <tree-ish> <tree-ish> kernel/sched.c 105 106and it will ignore all differences to other files. 107 108The pattern is always the prefix, and is matched exactly. There are no 109wildcards. Even stricter, it has to match complete path comonent. 110I.e. "foo" does not pick up `foobar.h`. "foo" does match `foo/bar.h` 111so it can be used to name subdirectories. 112 113An example of normal usage is: 114 115 torvalds@ppc970:~/git> git-diff-tree 5319e4...... 116 *100664->100664 blob ac348b.......->a01513....... git-fsck-cache.c 117 118which tells you that the last commit changed just one file (it's from 119this one: 120 121 commit 3c6f7ca19ad4043e9e72fa94106f352897e651a8 122 tree 5319e4d609cdd282069cc4dce33c1db559539b03 123 parent b4e628ea30d5ab3606119d2ea5caeab141d38df7 124 author Linus Torvalds <torvalds@ppc970.osdl.org> Sat Apr 9 12:02:30 2005 125 committer Linus Torvalds <torvalds@ppc970.osdl.org> Sat Apr 9 12:02:30 2005 126 127 Make "git-fsck-cache" print out all the root commits it finds. 128 129 Once I do the reference tracking, I'll also make it print out all the 130 HEAD commits it finds, which is even more interesting. 131 132in case you care). 133 134Output format 135------------- 136include::diff-format.txt[] 137 138 139Author 140------ 141Written by Linus Torvalds <torvalds@osdl.org> 142 143Documentation 144-------------- 145Documentation by David Greaves, Junio C Hamano and the git-list <git@vger.kernel.org>. 146 147GIT 148--- 149Part of the link:git.html[git] suite 150