path: root/Documentation/git-diff-helper.txt
diff options
authorJunio C Hamano <>2005-05-21 09:40:01 (GMT)
committerLinus Torvalds <>2005-05-21 16:58:03 (GMT)
commit52e9578985fb636ec1d3f6cf794fdadd5ec896fc (patch)
treebb22f522116f5d8e6ae677b7a4660e959c052fc2 /Documentation/git-diff-helper.txt
parent427dcb4bca49117664d9428fd4e86483f516d703 (diff)
[PATCH] Introducing software archaeologist's tool "pickaxe".
This steals the "pickaxe" feature from JIT and make it available to the bare Plumbing layer. From the command line, the user gives a string he is intersted in. Using the diff-core infrastructure previously introduced, it filters the differences to limit the output only to the diffs between <src> and <dst> where the string appears only in one but not in the other. For example: $ ./git-rev-list HEAD | ./git-diff-tree -Sdiff-tree-helper --stdin -M would show the diffs that touch the string "diff-tree-helper". In real software-archaeologist application, you would typically look for a few to several lines of code and see where that code came from. The "pickaxe" module runs after "rename/copy detection" module, so it even crosses the file rename boundary, as the above example demonstrates. Signed-off-by: Junio C Hamano <> Signed-off-by: Linus Torvalds <>
Diffstat (limited to 'Documentation/git-diff-helper.txt')
1 files changed, 5 insertions, 1 deletions
diff --git a/Documentation/git-diff-helper.txt b/Documentation/git-diff-helper.txt
index 302789e..2036c6c 100644
--- a/Documentation/git-diff-helper.txt
+++ b/Documentation/git-diff-helper.txt
@@ -9,7 +9,7 @@ git-diff-helper - Generates patch format output for git-diff-*
-'git-diff-helper' [-z] [-R] [-M] [-C]
+'git-diff-helper' [-z] [-R] [-M] [-C] [-S<string>]
@@ -37,6 +37,10 @@ OPTIONS
Detect copies as well as renames.
+ Look for differences that contains the change in <string>.
See Also
The section on generating patches in link:git-diff-cache.html[git-diff-cache]