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] [-B] [-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-B:: 37 Break complete rewrite changes into pairs of delete and create. 38 39-M:: 40 Detect renames. 41 42-C:: 43 Detect copies as well as renames. 44 45-R:: 46 Output diff in reverse. 47 48-S<string>:: 49 Look for differences that contains the change in <string>. 50 51--pickaxe-all:: 52 When -S finds a change, show all the changes in that 53 changeset, not just the files that contains the change 54 in <string>. 55 56-r:: 57 recurse 58 59-t:: 60 show tree entry itself as well as subtrees. Implies -r. 61 62-z:: 63 \0 line termination on output 64 65--root:: 66 When '--root' is specified the initial commit will be showed as a big 67 creation event. This is equivalent to a diff against the NULL tree. 68 69--stdin:: 70 When '--stdin' is specified, the command does not take 71 <tree-ish> arguments from the command line. Instead, it 72 reads either one <commit> or a pair of <tree-ish> 73 separated with a single space from its standard input. 74+ 75When a single commit is given on one line of such input, it compares 76the commit with its parents. The following flags further affects its 77behaviour. This does not apply to the case where two <tree-ish> 78separated with a single space are given. 79 80-m:: 81 By default, "git-diff-tree --stdin" does not show 82 differences for merge commits. With this flag, it shows 83 differences to that commit from all of its parents. 84 85-s:: 86 By default, "git-diff-tree --stdin" shows differences, 87 either in machine-readable form (without '-p') or in patch 88 form (with '-p'). This output can be supressed. It is 89 only useful with '-v' flag. 90 91-v:: 92 This flag causes "git-diff-tree --stdin" to also show 93 the commit message before the differences. 94 95 96Limiting Output 97--------------- 98If you're only interested in differences in a subset of files, for 99example some architecture-specific files, you might do: 100 101 git-diff-tree -r <tree-ish> <tree-ish> arch/ia64 include/asm-ia64 102 103and it will only show you what changed in those two directories. 104 105Or if you are searching for what changed in just `kernel/sched.c`, just do 106 107 git-diff-tree -r <tree-ish> <tree-ish> kernel/sched.c 108 109and it will ignore all differences to other files. 110 111The pattern is always the prefix, and is matched exactly. There are no 112wildcards. Even stricter, it has to match complete path comonent. 113I.e. "foo" does not pick up `foobar.h`. "foo" does match `foo/bar.h` 114so it can be used to name subdirectories. 115 116An example of normal usage is: 117 118 torvalds@ppc970:~/git> git-diff-tree 5319e4...... 119 *100664->100664 blob ac348b.......->a01513....... git-fsck-cache.c 120 121which tells you that the last commit changed just one file (it's from 122this one: 123 124 commit 3c6f7ca19ad4043e9e72fa94106f352897e651a8 125 tree 5319e4d609cdd282069cc4dce33c1db559539b03 126 parent b4e628ea30d5ab3606119d2ea5caeab141d38df7 127 author Linus Torvalds <torvalds@ppc970.osdl.org> Sat Apr 9 12:02:30 2005 128 committer Linus Torvalds <torvalds@ppc970.osdl.org> Sat Apr 9 12:02:30 2005 129 130 Make "git-fsck-cache" print out all the root commits it finds. 131 132 Once I do the reference tracking, I'll also make it print out all the 133 HEAD commits it finds, which is even more interesting. 134 135in case you care). 136 137Output format 138------------- 139include::diff-format.txt[] 140 141 142Author 143------ 144Written by Linus Torvalds <torvalds@osdl.org> 145 146Documentation 147-------------- 148Documentation by David Greaves, Junio C Hamano and the git-list <git@vger.kernel.org>. 149 150GIT 151--- 152Part of the link:git.html[git] suite 153