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