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' [--stdin] [-m] [-s] [-v] [--pretty] [-t] [<common diff options>] <tree-ish> <tree-ish> [<path>...] 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------- 22include::diff-options.txt[] 23 24<tree-ish>:: 25 The id of a tree object. 26 27<path>...:: 28 If provided, the results are limited to a subset of files 29 matching one of these prefix strings. 30 ie file matches `/^<pattern1>|<pattern2>|.../` 31 Note that this parameter does not provide any wildcard or regexp 32 features. 33 34-t:: 35 show tree entry itself as well as subtrees. Implies -r. 36 37--root:: 38 When '--root' is specified the initial commit will be showed as a big 39 creation event. This is equivalent to a diff against the NULL tree. 40 41--stdin:: 42 When '--stdin' is specified, the command does not take 43 <tree-ish> arguments from the command line. Instead, it 44 reads either one <commit> or a pair of <tree-ish> 45 separated with a single space from its standard input. 46+ 47When a single commit is given on one line of such input, it compares 48the commit with its parents. The following flags further affects its 49behaviour. This does not apply to the case where two <tree-ish> 50separated with a single space are given. 51 52-m:: 53 By default, "git-diff-tree --stdin" does not show 54 differences for merge commits. With this flag, it shows 55 differences to that commit from all of its parents. 56 57-s:: 58 By default, "git-diff-tree --stdin" shows differences, 59 either in machine-readable form (without '-p') or in patch 60 form (with '-p'). This output can be supressed. It is 61 only useful with '-v' flag. 62 63-v:: 64 This flag causes "git-diff-tree --stdin" to also show 65 the commit message before the differences. 66 67--pretty[=(raw|medium|short)]:: 68 This is used to control "pretty printing" format of the 69 commit message. Without "=<style>", it defaults to 70 medium. 71 72 73Limiting Output 74--------------- 75If you're only interested in differences in a subset of files, for 76example some architecture-specific files, you might do: 77 78 git-diff-tree -r <tree-ish> <tree-ish> arch/ia64 include/asm-ia64 79 80and it will only show you what changed in those two directories. 81 82Or if you are searching for what changed in just `kernel/sched.c`, just do 83 84 git-diff-tree -r <tree-ish> <tree-ish> kernel/sched.c 85 86and it will ignore all differences to other files. 87 88The pattern is always the prefix, and is matched exactly. There are no 89wildcards. Even stricter, it has to match a complete path component. 90I.e. "foo" does not pick up `foobar.h`. "foo" does match `foo/bar.h` 91so it can be used to name subdirectories. 92 93An example of normal usage is: 94 95 torvalds@ppc970:~/git> git-diff-tree 5319e4...... 96 *100664->100664 blob ac348b.......->a01513....... git-fsck-objects.c 97 98which tells you that the last commit changed just one file (it's from 99this one: 100 101 commit 3c6f7ca19ad4043e9e72fa94106f352897e651a8 102 tree 5319e4d609cdd282069cc4dce33c1db559539b03 103 parent b4e628ea30d5ab3606119d2ea5caeab141d38df7 104 author Linus Torvalds <torvalds@ppc970.osdl.org> Sat Apr 9 12:02:30 2005 105 committer Linus Torvalds <torvalds@ppc970.osdl.org> Sat Apr 9 12:02:30 2005 106 107 Make "git-fsck-objects" print out all the root commits it finds. 108 109 Once I do the reference tracking, I'll also make it print out all the 110 HEAD commits it finds, which is even more interesting. 111 112in case you care). 113 114Output format 115------------- 116include::diff-format.txt[] 117 118 119Author 120------ 121Written by Linus Torvalds <torvalds@osdl.org> 122 123Documentation 124-------------- 125Documentation by David Greaves, Junio C Hamano and the git-list <git@vger.kernel.org>. 126 127GIT 128--- 129Part of the link:git.html[git] suite 130