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