git/t/t9832-unshelve.sh
Luke Diamand 89143ac28a git-p4: fully support unshelving changelists
The previous git-p4 unshelve support would check for changes
in Perforce to the files being unshelved since the original
shelve, and would complain if any were found.

This was to ensure that the user wouldn't end up with both the
shelved change delta, and some deltas from other changes in their
git commit.

e.g. given fileA:
      the
      quick
      brown
      fox

  change1: s/the/The/   <- p4 shelve this change
  change2: s/fox/Fox/   <- p4 submit this change
  git p4 unshelve 1     <- FAIL

This change teaches the P4Unshelve class to always create a parent
commit which matches the P4 tree (for the files being unshelved) at
the point prior to the P4 shelve being created (which is reported
in the p4 description for a shelved changelist).

That then means git-p4 can always create a git commit matching the
P4 shelve that was originally created, without any extra deltas.

The user might still need to use the --origin option though - there
is no way for git-p4 to work out the versions of all of the other
*unchanged* files in the shelve, since this information is not recorded
by Perforce.

Additionally this fixes handling of shelved 'move' operations.

Signed-off-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-16 13:28:49 +09:00

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#!/bin/sh
last_shelved_change () {
p4 changes -s shelved -m1 | cut -d " " -f 2
}
test_description='git p4 unshelve'
. ./lib-git-p4.sh
test_expect_success 'start p4d' '
start_p4d
'
test_expect_success 'init depot' '
(
cd "$cli" &&
echo file1 >file1 &&
p4 add file1 &&
p4 submit -d "change 1" &&
: >file_to_delete &&
: >file_to_move &&
p4 add file_to_delete &&
p4 add file_to_move &&
p4 submit -d "add files to delete"
)
'
test_expect_success 'initial clone' '
git p4 clone --dest="$git" //depot/@all
'
test_expect_success 'create shelved changelist' '
(
cd "$cli" &&
p4 edit file1 &&
echo "a change" >>file1 &&
echo "new file" >file2 &&
p4 add file2 &&
p4 delete file_to_delete &&
p4 edit file_to_move &&
p4 move file_to_move moved_file &&
p4 opened &&
p4 shelve -i <<EOF
Change: new
Description:
Test commit
Further description
Files:
//depot/file1
//depot/file2
//depot/file_to_delete
//depot/file_to_move
//depot/moved_file
EOF
) &&
(
cd "$git" &&
change=$(last_shelved_change) &&
git p4 unshelve $change &&
git show refs/remotes/p4-unshelved/$change | grep -q "Further description" &&
git cherry-pick refs/remotes/p4-unshelved/$change &&
test_path_is_file file2 &&
test_cmp file1 "$cli"/file1 &&
test_cmp file2 "$cli"/file2 &&
test_path_is_missing file_to_delete &&
test_path_is_missing file_to_move &&
test_path_is_file moved_file
)
'
test_expect_success 'update shelved changelist and re-unshelve' '
test_when_finished cleanup_git &&
(
cd "$cli" &&
change=$(last_shelved_change) &&
echo "file3" >file3 &&
p4 add -c $change file3 &&
p4 shelve -i -r <<EOF &&
Change: $change
Description:
Test commit
Further description
Files:
//depot/file1
//depot/file2
//depot/file3
//depot/file_to_delete
EOF
p4 describe $change
) &&
(
cd "$git" &&
change=$(last_shelved_change) &&
git p4 unshelve $change &&
git diff refs/remotes/p4-unshelved/$change.0 refs/remotes/p4-unshelved/$change | grep -q file3
)
'
shelve_one_file () {
description="Change to be unshelved" &&
file="$1" &&
p4 shelve -i <<EOF
Change: new
Description:
$description
Files:
$file
EOF
}
# This is the tricky case where the shelved changelist base revision doesn't
# match git-p4's idea of the base revision
#
# We will attempt to unshelve a change that is based on a change one commit
# ahead of p4/master
test_expect_success 'create shelved changelist based on p4 change ahead of p4/master' '
git p4 clone --dest="$git" //depot/@all &&
(
cd "$cli" &&
p4 revert ... &&
p4 edit file1 &&
echo "foo" >>file1 &&
p4 submit -d "change:foo" &&
p4 edit file1 &&
echo "bar" >>file1 &&
shelve_one_file //depot/file1 &&
change=$(last_shelved_change) &&
p4 describe -S $change >out.txt &&
grep -q "Change to be unshelved" out.txt
)
'
# Now try to unshelve it.
test_expect_success 'try to unshelve the change' '
test_when_finished cleanup_git &&
(
change=$(last_shelved_change) &&
cd "$git" &&
git p4 unshelve $change >out.txt &&
grep -q "unshelved changelist $change" out.txt
)
'
# Specify the origin. Create 2 unrelated files, and check that
# we only get the one in HEAD~, not the one in HEAD.
test_expect_success 'unshelve specifying the origin' '
(
cd "$cli" &&
: >unrelated_file0 &&
p4 add unrelated_file0 &&
p4 submit -d "unrelated" &&
: >unrelated_file1 &&
p4 add unrelated_file1 &&
p4 submit -d "unrelated" &&
: >file_to_shelve &&
p4 add file_to_shelve &&
shelve_one_file //depot/file_to_shelve
) &&
test_when_finished cleanup_git &&
git p4 clone --dest="$git" //depot/@all &&
(
cd "$git" &&
change=$(last_shelved_change) &&
git p4 unshelve --origin HEAD~ $change &&
git checkout refs/remotes/p4-unshelved/$change &&
test_path_is_file unrelated_file0 &&
test_path_is_missing unrelated_file1 &&
test_path_is_file file_to_shelve
)
'
test_expect_success 'kill p4d' '
kill_p4d
'
test_done