1git-diff-tree(1) 2================ 3 4NAME 5---- 6git-diff-tree - Compares the content and mode of blobs found via two tree objects 7 8 9SYNOPSIS 10-------- 11'git-diff-tree' [--stdin] [-m] [-s] [-v] [--pretty] [-t] [-r] [--root] [<common diff options>] <tree-ish> [<tree-ish>] [<path>...] 12 13DESCRIPTION 14----------- 15Compares the content and mode of the blobs found via two tree objects. 16 17If there is only one <tree-ish> given, the commit is compared with its parents 18(see --stdin below). 19 20Note that "git-diff-tree" can use the tree encapsulated in a commit object. 21 22OPTIONS 23------- 24include::diff-options.txt[] 25 26<tree-ish>:: 27 The id of a tree object. 28 29<path>...:: 30 If provided, the results are limited to a subset of files 31 matching one of these prefix strings. 32 ie file matches `/^<pattern1>|<pattern2>|.../` 33 Note that this parameter does not provide any wildcard or regexp 34 features. 35 36-r:: 37 recurse into sub-trees 38 39-t:: 40 show tree entry itself as well as subtrees. Implies -r. 41 42--root:: 43 When '--root' is specified the initial commit will be showed as a big 44 creation event. This is equivalent to a diff against the NULL tree. 45 46--stdin:: 47 When '--stdin' is specified, the command does not take 48 <tree-ish> arguments from the command line. Instead, it 49 reads either one <commit> or a pair of <tree-ish> 50 separated with a single space from its standard input. 51+ 52When a single commit is given on one line of such input, it compares 53the commit with its parents. The following flags further affects its 54behaviour. This does not apply to the case where two <tree-ish> 55separated with a single space are given. 56 57-m:: 58 By default, "git-diff-tree --stdin" does not show 59 differences for merge commits. With this flag, it shows 60 differences to that commit from all of its parents. 61 62-s:: 63 By default, "git-diff-tree --stdin" shows differences, 64 either in machine-readable form (without '-p') or in patch 65 form (with '-p'). This output can be supressed. It is 66 only useful with '-v' flag. 67 68-v:: 69 This flag causes "git-diff-tree --stdin" to also show 70 the commit message before the differences. 71 72--pretty[=(raw|medium|short)]:: 73 This is used to control "pretty printing" format of the 74 commit message. Without "=<style>", it defaults to 75 medium. 76 77 78Limiting Output 79--------------- 80If you're only interested in differences in a subset of files, for 81example some architecture-specific files, you might do: 82 83 git-diff-tree -r <tree-ish> <tree-ish> arch/ia64 include/asm-ia64 84 85and it will only show you what changed in those two directories. 86 87Or if you are searching for what changed in just `kernel/sched.c`, just do 88 89 git-diff-tree -r <tree-ish> <tree-ish> kernel/sched.c 90 91and it will ignore all differences to other files. 92 93The pattern is always the prefix, and is matched exactly. There are no 94wildcards. Even stricter, it has to match a complete path component. 95I.e. "foo" does not pick up `foobar.h`. "foo" does match `foo/bar.h` 96so it can be used to name subdirectories. 97 98An example of normal usage is: 99 100 torvalds@ppc970:~/git> git-diff-tree 5319e4...... 101 *100664->100664 blob ac348b.......->a01513....... git-fsck-objects.c 102 103which tells you that the last commit changed just one file (it's from 104this one: 105 106----------------------------------------------------------------------------- 107commit 3c6f7ca19ad4043e9e72fa94106f352897e651a8 108tree 5319e4d609cdd282069cc4dce33c1db559539b03 109parent b4e628ea30d5ab3606119d2ea5caeab141d38df7 110author Linus Torvalds <torvalds@ppc970.osdl.org> Sat Apr 9 12:02:30 2005 111committer Linus Torvalds <torvalds@ppc970.osdl.org> Sat Apr 9 12:02:30 2005 112 113Make "git-fsck-objects" print out all the root commits it finds. 114 115Once I do the reference tracking, I'll also make it print out all the 116HEAD commits it finds, which is even more interesting. 117----------------------------------------------------------------------------- 118 119in case you care). 120 121Output format 122------------- 123include::diff-format.txt[] 124 125 126Author 127------ 128Written by Linus Torvalds <torvalds@osdl.org> 129 130Documentation 131-------------- 132Documentation by David Greaves, Junio C Hamano and the git-list <git@vger.kernel.org>. 133 134GIT 135--- 136Part of the gitlink:git[7] suite 137