git/t/t3510-cherry-pick-sequence.sh
Ramkumar Ramachandra 04d3d3cfc4 revert: Save data for continuing after conflict resolution
Ever since v1.7.2-rc1~4^2~7 (revert: allow cherry-picking more than
one commit, 2010-06-02), a single invocation of "git cherry-pick" or
"git revert" can perform picks of several individual commits.  To
implement features like "--continue" to continue the whole operation,
we will need to store some information about the state and the plan at
the beginning.  Introduce a ".git/sequencer/head" file to store this
state, and ".git/sequencer/todo" file to store the plan.  The head
file contains the SHA-1 of the HEAD before the start of the operation,
and the todo file contains an instruction sheet whose format is
inspired by the format of the "rebase -i" instruction sheet.  As a
result, a typical todo file looks like:

  pick 8537f0e submodule add: test failure when url is not configured
  pick 4d68932 submodule add: allow relative repository path
  pick f22a17e submodule add: clean up duplicated code
  pick 59a5775 make copy_ref globally available

Since SHA-1 hex is abbreviated using an find_unique_abbrev(), it is
unambiguous.  This does not guarantee that there will be no ambiguity
when more objects are added to the repository.

These two files alone are not enough to implement a "--continue" that
remembers the command-line options specified; later patches in the
series save them too.

These new files are unrelated to the existing .git/CHERRY_PICK_HEAD,
which will still be useful while committing after a conflict
resolution.

Inspired-by: Christian Couder <chriscool@tuxfamily.org>
Helped-by: Junio C Hamano <gitster@pobox.com>
Helped-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-08-04 15:40:44 -07:00

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#!/bin/sh
test_description='Test cherry-pick continuation features
+ anotherpick: rewrites foo to d
+ picked: rewrites foo to c
+ unrelatedpick: rewrites unrelated to reallyunrelated
+ base: rewrites foo to b
+ initial: writes foo as a, unrelated as unrelated
'
. ./test-lib.sh
pristine_detach () {
rm -rf .git/sequencer &&
git checkout -f "$1^0" &&
git read-tree -u --reset HEAD &&
git clean -d -f -f -q -x
}
test_expect_success setup '
echo unrelated >unrelated &&
git add unrelated &&
test_commit initial foo a &&
test_commit base foo b &&
test_commit unrelatedpick unrelated reallyunrelated &&
test_commit picked foo c &&
test_commit anotherpick foo d &&
git config advice.detachedhead false
'
test_expect_success 'cherry-pick persists data on failure' '
pristine_detach initial &&
test_must_fail git cherry-pick base..anotherpick &&
test_path_is_dir .git/sequencer &&
test_path_is_file .git/sequencer/head &&
test_path_is_file .git/sequencer/todo
'
test_expect_success 'cherry-pick cleans up sequencer state upon success' '
pristine_detach initial &&
git cherry-pick initial..picked &&
test_path_is_missing .git/sequencer
'
test_done