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t9164-git-svn-dcommit-concurrent.sh
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t9164-git-svn-dcommit-concurrent.sh
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#!/bin/sh
#
# Copyright (c) 2012 Robert Luberda
#
test_description='concurrent git svn dcommit'
. ./lib-git-svn.sh
test_expect_success 'setup svn repository' '
svn_cmd checkout "$svnrepo" work.svn &&
(
cd work.svn &&
echo >file && echo > auto_updated_file
svn_cmd add file auto_updated_file &&
svn_cmd commit -m "initial commit"
) &&
svn_cmd checkout "$svnrepo" work-auto-commits.svn
'
N=0
next_N()
{
N=$(( $N + 1 ))
}
# Setup SVN repository hooks to emulate SVN failures or concurrent commits
# The function adds
# either pre-commit hook, which causes SVN commit given in second argument
# to fail
# or post-commit hook, which creates a new commit (a new line added to
# auto_updated_file) after given SVN commit
# The first argument contains a type of the hook
# The second argument contains a number (not SVN revision) of commit
# the hook should be applied for (each time the hook is run, the given
# number is decreased by one until it gets 0, in which case the hook
# will execute its real action)
setup_hook()
{
hook_type="$1" # "pre-commit" or "post-commit"
skip_revs="$2"
[ "$hook_type" = "pre-commit" ] ||
[ "$hook_type" = "post-commit" ] ||
{ echo "ERROR: invalid argument ($hook_type)" \
"passed to setup_hook" >&2 ; return 1; }
echo "cnt=$skip_revs" > "$hook_type-counter"
rm -f "$rawsvnrepo/hooks/"*-commit # drop previous hooks
hook="$rawsvnrepo/hooks/$hook_type"
cat > "$hook" <<- 'EOF1'
#!/bin/sh
set -e
cd "$1/.." # "$1" is repository location
exec >> svn-hook.log 2>&1
hook="$(basename "$0")"
echo "*** Executing $hook $@"
set -x
. ./$hook-counter
cnt="$(($cnt - 1))"
echo "cnt=$cnt" > ./$hook-counter
[ "$cnt" = "0" ] || exit 0
EOF1
if [ "$hook_type" = "pre-commit" ]; then
echo "echo 'commit disallowed' >&2; exit 1" >>"$hook"
else
echo "PATH=\"$PATH\"; export PATH" >>"$hook"
echo "svnconf=\"$svnconf\"" >>"$hook"
cat >>"$hook" <<- 'EOF2'
cd work-auto-commits.svn
svn up --config-dir "$svnconf"
echo "$$" >> auto_updated_file
svn commit --config-dir "$svnconf" \
-m "auto-committing concurrent change"
exit 0
EOF2
fi
chmod 755 "$hook"
}
check_contents()
{
gitdir="$1"
(cd ../work.svn && svn_cmd up) &&
test_cmp file ../work.svn/file &&
test_cmp auto_updated_file ../work.svn/auto_updated_file
}
test_expect_success 'check if post-commit hook creates a concurrent commit' '
setup_hook post-commit 1 &&
(
cd work.svn &&
cp auto_updated_file au_file_saved &&
echo 1 >> file &&
svn_cmd commit -m "changing file" &&
svn_cmd up &&
test_must_fail test_cmp auto_updated_file au_file_saved
)
'
test_expect_success 'check if pre-commit hook fails' '
setup_hook pre-commit 2 &&
(
cd work.svn &&
echo 2 >> file &&
svn_cmd commit -m "changing file once again" &&
echo 3 >> file &&
test_must_fail svn_cmd commit -m "this commit should fail" &&
svn_cmd revert file
)
'
test_expect_success 'dcommit error handling' '
setup_hook pre-commit 2 &&
next_N && git svn clone "$svnrepo" work$N.git &&
(
cd work$N.git &&
echo 1 >> file && git commit -am "commit change $N.1" &&
echo 2 >> file && git commit -am "commit change $N.2" &&
echo 3 >> file && git commit -am "commit change $N.3" &&
# should fail to dcommit 2nd and 3rd change
# but still should leave the repository in reasonable state
test_must_fail git svn dcommit &&
git update-index --refresh &&
git show HEAD~2 | grep -q git-svn-id &&
! git show HEAD~1 | grep -q git-svn-id &&
! git show HEAD | grep -q git-svn-id
)
'
test_expect_success 'dcommit concurrent change in non-changed file' '
setup_hook post-commit 2 &&
next_N && git svn clone "$svnrepo" work$N.git &&
(
cd work$N.git &&
echo 1 >> file && git commit -am "commit change $N.1" &&
echo 2 >> file && git commit -am "commit change $N.2" &&
echo 3 >> file && git commit -am "commit change $N.3" &&
# should rebase and leave the repository in reasonable state
git svn dcommit &&
git update-index --refresh &&
check_contents &&
git show HEAD~3 | grep -q git-svn-id &&
git show HEAD~2 | grep -q git-svn-id &&
git show HEAD~1 | grep -q auto-committing &&
git show HEAD | grep -q git-svn-id
)
'
# An utility function used in the following test
delete_first_line()
{
file="$1" &&
sed 1d < "$file" > "${file}.tmp" &&
rm "$file" &&
mv "${file}.tmp" "$file"
}
test_expect_success 'dcommit concurrent non-conflicting change' '
setup_hook post-commit 2 &&
next_N && git svn clone "$svnrepo" work$N.git &&
(
cd work$N.git &&
cat file >> auto_updated_file &&
git commit -am "commit change $N.1" &&
delete_first_line auto_updated_file &&
git commit -am "commit change $N.2" &&
delete_first_line auto_updated_file &&
git commit -am "commit change $N.3" &&
# should rebase and leave the repository in reasonable state
git svn dcommit &&
git update-index --refresh &&
check_contents &&
git show HEAD~3 | grep -q git-svn-id &&
git show HEAD~2 | grep -q git-svn-id &&
git show HEAD~1 | grep -q auto-committing &&
git show HEAD | grep -q git-svn-id
)
'
test_expect_success 'dcommit --no-rebase concurrent non-conflicting change' '
setup_hook post-commit 2 &&
next_N && git svn clone "$svnrepo" work$N.git &&
(
cd work$N.git &&
cat file >> auto_updated_file &&
git commit -am "commit change $N.1" &&
delete_first_line auto_updated_file &&
git commit -am "commit change $N.2" &&
delete_first_line auto_updated_file &&
git commit -am "commit change $N.3" &&
# should fail as rebase is needed
test_must_fail git svn dcommit --no-rebase &&
# but should leave HEAD unchanged
git update-index --refresh &&
! git show HEAD~2 | grep -q git-svn-id &&
! git show HEAD~1 | grep -q git-svn-id &&
! git show HEAD | grep -q git-svn-id
)
'
test_expect_success 'dcommit fails on concurrent conflicting change' '
setup_hook post-commit 1 &&
next_N && git svn clone "$svnrepo" work$N.git &&
(
cd work$N.git &&
echo a >> file &&
git commit -am "commit change $N.1" &&
echo b >> auto_updated_file &&
git commit -am "commit change $N.2" &&
echo c >> auto_updated_file &&
git commit -am "commit change $N.3" &&
test_must_fail git svn dcommit && # rebase should fail
test_must_fail git update-index --refresh
)
'
test_done