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git/t/t3405-rebase-malformed.sh
Martin von Zweigbergk a230949409 am --rebasing: get patch body from commit, not from mailbox
Rebasing a commit that contains a diff in the commit message results
in a failure with output such as

  First, rewinding head to replay your work on top of it...
  Applying: My cool patch.
  fatal: sha1 information is lacking or useless
  (app/controllers/settings_controller.rb).
  Repository lacks necessary blobs to fall back on 3-way merge.
  Cannot fall back to three-way merge.
  Patch failed at 0001 My cool patch.

The reason is that 'git rebase' without -p/-i/-m internally calls 'git
format-patch' and pipes the output to 'git am --rebasing', which has
no way of knowing what is a real patch and what is a commit message
that contains a patch.

Make 'git am' while in --rebasing mode get the patch body from the
commit object instead of extracting it from the mailbox.

Patch by Junio, test case and commit log message by Martin.

Reported-by: anikey <arty.anikey@gmail.com>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-26 13:17:56 -07:00

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#!/bin/sh
test_description='rebase should handle arbitrary git message'
. ./test-lib.sh
cat >F <<\EOF
This is an example of a commit log message
that does not conform to git commit convention.
It has two paragraphs, but its first paragraph is not friendly
to oneline summary format.
EOF
cat >G <<\EOF
commit log message containing a diff
EOF
test_expect_success setup '
>file1 &&
>file2 &&
git add file1 file2 &&
test_tick &&
git commit -m "Initial commit" &&
git branch diff-in-message
git checkout -b multi-line-subject &&
cat F >file2 &&
git add file2 &&
test_tick &&
git commit -F F &&
git cat-file commit HEAD | sed -e "1,/^\$/d" >F0 &&
git checkout diff-in-message &&
echo "commit log message containing a diff" >G &&
echo "" >>G
cat G >file2 &&
git add file2 &&
git diff --cached >>G &&
test_tick &&
git commit -F G &&
git cat-file commit HEAD | sed -e "1,/^\$/d" >G0 &&
git checkout master &&
echo One >file1 &&
test_tick &&
git add file1 &&
git commit -m "Second commit"
'
test_expect_success 'rebase commit with multi-line subject' '
git rebase master multi-line-subject &&
git cat-file commit HEAD | sed -e "1,/^\$/d" >F1 &&
test_cmp F0 F1 &&
test_cmp F F0
'
test_expect_success 'rebase commit with diff in message' '
git rebase master diff-in-message &&
git cat-file commit HEAD | sed -e "1,/^$/d" >G1 &&
test_cmp G0 G1 &&
test_cmp G G0
'
test_done