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] [--no-commit-id] [--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--no-commit-id:: 78 git-diff-tree outputs a line with the commit ID when 79 applicable. This flag suppressed the commit ID output. 80 81 82Limiting Output 83--------------- 84If you're only interested in differences in a subset of files, for 85example some architecture-specific files, you might do: 86 87 git-diff-tree -r <tree-ish> <tree-ish> arch/ia64 include/asm-ia64 88 89and it will only show you what changed in those two directories. 90 91Or if you are searching for what changed in just `kernel/sched.c`, just do 92 93 git-diff-tree -r <tree-ish> <tree-ish> kernel/sched.c 94 95and it will ignore all differences to other files. 96 97The pattern is always the prefix, and is matched exactly. There are no 98wildcards. Even stricter, it has to match a complete path component. 99I.e. "foo" does not pick up `foobar.h`. "foo" does match `foo/bar.h` 100so it can be used to name subdirectories. 101 102An example of normal usage is: 103 104 torvalds@ppc970:~/git> git-diff-tree 5319e4...... 105 *100664->100664 blob ac348b.......->a01513....... git-fsck-objects.c 106 107which tells you that the last commit changed just one file (it's from 108this one: 109 110----------------------------------------------------------------------------- 111commit 3c6f7ca19ad4043e9e72fa94106f352897e651a8 112tree 5319e4d609cdd282069cc4dce33c1db559539b03 113parent b4e628ea30d5ab3606119d2ea5caeab141d38df7 114author Linus Torvalds <torvalds@ppc970.osdl.org> Sat Apr 9 12:02:30 2005 115committer Linus Torvalds <torvalds@ppc970.osdl.org> Sat Apr 9 12:02:30 2005 116 117Make "git-fsck-objects" print out all the root commits it finds. 118 119Once I do the reference tracking, I'll also make it print out all the 120HEAD commits it finds, which is even more interesting. 121----------------------------------------------------------------------------- 122 123in case you care). 124 125Output format 126------------- 127include::diff-format.txt[] 128 129 130Author 131------ 132Written by Linus Torvalds <torvalds@osdl.org> 133 134Documentation 135-------------- 136Documentation by David Greaves, Junio C Hamano and the git-list <git@vger.kernel.org>. 137 138GIT 139--- 140Part of the gitlink:git[7] suite 141