Re: git diff-tree commit detail bug in 2.0.2 and 2.0.3

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On 28/07/14 10:42, Bryan Turner wrote:
> Using git diff-tree --stdin on 2.0.2 and 2.0.3 produces incorrect
> commit messages.
> 
> Here's an example to reproduce the issue:
> 
> bturner@ubuntu:/tmp$ git init --bare test.git
> Initialized empty Git repository in /tmp/test.git/
> bturner@ubuntu:/tmp$ git clone test.git
> Cloning into 'test'...
> warning: You appear to have cloned an empty repository.
> done.
> bturner@ubuntu:/tmp$ cd test
> bturner@ubuntu:/tmp/test$ echo "Hello" > file.txt
> bturner@ubuntu:/tmp/test$ git add file.txt
> bturner@ubuntu:/tmp/test$ git commit -m "Initial commit"
> [master (root-commit) c5e16f3] Initial commit
>  1 file changed, 1 insertion(+)
>  create mode 100644 file.txt
> bturner@ubuntu:/tmp/test$ echo "World" >> file.txt
> bturner@ubuntu:/tmp/test$ git commit -am "Second commit"
> [master 9214ac7] Second commit
>  1 file changed, 1 insertion(+)
> bturner@ubuntu:/tmp/test$ git push origin HEAD
> Counting objects: 6, done.
> Delta compression using up to 4 threads.
> Compressing objects: 100% (2/2), done.
> Writing objects: 100% (6/6), 446 bytes | 0 bytes/s, done.
> Total 6 (delta 0), reused 0 (delta 0)
> To /tmp/test.git
>  * [new branch]      HEAD -> master
> bturner@ubuntu:/tmp/test$ cd ../test.git/
> bturner@ubuntu:/tmp/test.git$ git rev-list -1
> --format="%H|%h|%P|%p|%aN|%aE|%at%n%B%n" 9214ac7
> commit 9214ac79728424a971244c34432c6d948754198d
> 9214ac79728424a971244c34432c6d948754198d|9214ac7|c5e16f37164f1b7411685def64d7390775437f07|c5e16f3|Bryan
> Turner|bturner@xxxxxxxxxxxxx|1406539558
> Second commit
> 
> 
> bturner@ubuntu:/tmp/test.git$ /opt/git/2.0.3/bin/git diff-tree
----------------------------------------^^^^^^^

You appear to have used v2.0.3 on both invocations of diff-tree
(see also below); cut-n-paste error?

> --no-renames --always --format="commit
> %H%n%H|%h|%P|%p|%aN|%aE|%at|%B%n" --root
> 9214ac79728424a971244c34432c6d948754198d
> commit 9214ac79728424a971244c34432c6d948754198d
> 9214ac79728424a971244c34432c6d948754198d|9214ac79728424a971244c34432c6d948754198d|c5e16f37164f1b7411685def64d7390775437f07|c5e16f37164f1b7411685def64d7390775437f07|Bryan
> Turner|bturner@xxxxxxxxxxxxx|1406539558|Second commit
> 
> 
> 
> :100644 100644 e965047ad7c57865823c7d992b1d046ea66edf78
> f9264f7fbd31ae7a18b7931ed8946fb0aebb0af3 M    file.txt
> bturner@ubuntu:/tmp/test.git$ /opt/git/2.0.3/bin/git diff-tree
> --no-renames --always --format="commit
> %H%n%H|%h|%P|%p|%aN|%aE|%at|%B%n" --root --stdin
> --9214ac79728424a971244c34432c6d948754198d
> commit 9214ac79728424a971244c34432c6d948754198d
> 9214ac79728424a971244c34432c6d948754198d|9214ac79728424a971244c34432c6d948754198d|c5e16f37164f1b7411685def64d7390775437f07|c5e16f37164f1b7411685def64d7390775437f07|Bryan
> Turner|bturner@xxxxxxxxxxxxx|1406539543|Initial commit
---------------------------------------^^

The timestamp is also different than the above.

> 
> 
> 
> :100644 100644 e965047ad7c57865823c7d992b1d046ea66edf78
> f9264f7fbd31ae7a18b7931ed8946fb0aebb0af3 M    file.txt
> bturner@ubuntu:/tmp/test.git$
> 
> Running a git bisect between v2.0.1, which does not manifest this
> issue, and v2.0.2 fingers the following commit:
> bturner@ubuntu:~/Development/oss/git/git$ git bisect bad
> c1b3c71f4b4571abb2b2a457122fd100dc9f7eb0 is the first bad commit
> commit c1b3c71f4b4571abb2b2a457122fd100dc9f7eb0
> Author: Jeff King <peff@xxxxxxxx>
> Date:   Tue Jun 10 17:43:02 2014 -0400
> 
>     commit: convert commit->buffer to a slab
> 

ATB,
Ramsay Jones


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