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