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Update 'arc land': add --squash, add default config, fix windows compat

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Summary:
  - We have "--merge", added similar "--squash" for completeness.
  - Switched away from (cd .. && ...) pattern which is not functional on Windows.
  - Allow a default --onto to be specified, if master isn't the best default for a project.

Test Plan:
  - Did --hold --keep dry runs, changes landed properly.
  - Set a default onto branch in .arcconfig.
  - Ran --merge and --squash together to verify conflict configuration.

Reviewers: btrahan

CC: aran, epriestley

Maniphest Tasks: T124, T1033

Differential Revision: https://secure.phabricator.com/D2001
This commit is contained in:
epriestley 2012-03-22 18:20:22 -07:00
parent 3bff9417e9
commit e31bc81b6c
1 changed files with 50 additions and 49 deletions
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99
src/workflow/land/ArcanistLandWorkflow.php
View file

@ -68,7 +68,8 @@ EOTEXT
'onto' => array(
'param' => 'master',
'help' => "Land feature branch onto a branch other than ".
"'master' (default).",
"'master' (default). You can change the default by setting ".
"'arc.land.onto.default' in your .arcconfig.",
),
'hold' => array(
'help' => "Prepare the change to be pushed, but do not actually ".
@ -87,6 +88,14 @@ EOTEXT
'project is marked as having an immutable history, this is '.
'the default behavior.',
),
'squash' => array(
'help' => 'Perform a --squash merge, not a --no-ff merge. If the '.
'project is marked as having a mutable history, this is '.
'the default behavior.',
'conflicts' => array(
'merge' => '--merge and --squash are conflicting merge strategies.',
),
),
'revision' => array(
'param' => 'id',
'help' => 'Use the message from a specific revision, rather than '.
@ -104,19 +113,28 @@ EOTEXT
}
$branch = head($branch);
$onto_default = nonempty(
$this->getWorkingCopy()->getConfig('arc.land.onto.default'),
'master');
$remote = $this->getArgument('remote', 'origin');
$onto = $this->getArgument('onto', 'master');
$is_immutable = $this->isHistoryImmutable() ||
$this->getArgument('merge');
$onto = $this->getArgument('onto', $onto_default);
if ($this->getArgument('merge')) {
$use_squash = false;
} else if ($this->getArgument('squash')) {
$use_squash = true;
} else {
$use_squash = !$this->isHistoryImmutable();
}
$repository_api = $this->getRepositoryAPI();
if (!($repository_api instanceof ArcanistGitAPI)) {
throw new ArcanistUsageException("'arc land' only supports git.");
}
list($err) = exec_manual(
'(cd %s && git rev-parse --verify %s)',
$repository_api->getPath(),
list($err) = $repository_api->execManualLocal(
'rev-parse --verify %s',
$branch);
if ($err) {
@ -128,22 +146,16 @@ EOTEXT
$old_branch = $repository_api->getBranchName();
execx(
'(cd %s && git checkout %s)',
$repository_api->getPath(),
$onto);
$repository_api->execxLocal('checkout %s', $onto);
echo phutil_console_format(
"Switched to branch **%s**. Updating branch...\n",
$onto);
execx(
'(cd %s && git pull --ff-only)',
$repository_api->getPath());
$repository_api->execxLocal('pull --ff-only');
list($out) = execx(
'(cd %s && git log %s/%s..%s)',
$repository_api->getPath(),
list($out) = $repository_api->execxLocal(
'log %s/%s..%s',
$remote,
$onto,
$onto);
@ -154,20 +166,17 @@ EOTEXT
"changes in '{$onto}' before running 'arc land'.");
}
execx(
'(cd %s && git checkout %s)',
$repository_api->getPath(),
$repository_api->execxLocal(
'checkout %s',
$branch);
echo phutil_console_format(
"Switched to branch **%s**. Identifying and merging...\n",
$branch);
if (!$is_immutable) {
$err = phutil_passthru(
'(cd %s && git rebase %s)',
$repository_api->getPath(),
$onto);
if ($use_squash) {
chdir($repository_api->getPath());
$err = phutil_passthru('git rebase %s', $onto);
if ($err) {
throw new ArcanistUsageException(
"'git rebase {$onto}' failed. You can abort with 'git rebase ".
@ -237,17 +246,14 @@ EOTEXT
'revision_id' => $revision['id'],
));
execx(
'(cd %s && git checkout %s)',
$repository_api->getPath(),
$onto);
$repository_api->execxLocal('checkout %s', $onto);
if ($is_immutable) {
if ($use_squash) {
// In immutable histories, do a --no-ff merge to force a merge commit with
// the right message.
chdir($repository_api->getPath());
$err = phutil_passthru(
'(cd %s && git merge --no-ff -m %s %s)',
$repository_api->getPath(),
'git merge --no-ff -m %s %s',
$message,
$branch);
if ($err) {
@ -258,13 +264,11 @@ EOTEXT
}
} else {
// In mutable histories, do a --squash merge.
execx(
'(cd %s && git merge --squash --ff-only %s)',
$repository_api->getPath(),
$repository_api->execxLocal(
'merge --squash --ff-only %s',
$branch);
execx(
'(cd %s && git commit -m %s)',
$repository_api->getPath(),
$repository_api->execxLocal(
'commit -m %s',
$message);
}
@ -275,9 +279,9 @@ EOTEXT
} else {
echo "Pushing change...\n\n";
chdir($repository_api->getPath());
$err = phutil_passthru(
'(cd %s && git push %s %s)',
$repository_api->getPath(),
'git push %s %s',
$remote,
$onto);
@ -298,9 +302,8 @@ EOTEXT
}
if (!$this->getArgument('keep-branch')) {
list($ref) = execx(
'(cd %s && git rev-parse --verify %s)',
$repository_api->getPath(),
list($ref) = $repository_api->execxLocal(
'rev-parse --verify %s',
$branch);
$ref = trim($ref);
$recovery_command = csprintf(
@ -310,18 +313,16 @@ EOTEXT
echo "Cleaning up feature branch...\n";
echo "(Use `{$recovery_command}` if you want it back.)\n";
execx(
'(cd %s && git branch -D %s)',
$repository_api->getPath(),
$repository_api->execxLocal(
'branch -D %s',
$branch);
}
// If we were on some branch A and the user ran "arc land B", switch back
// to A.
if (($old_branch != $branch) && ($old_branch != $onto)) {
execx(
'(cd %s && git checkout %s)',
$repository_api->getPath(),
$repository_api->execxLocal(
'checkout %s',
$old_branch);
echo phutil_console_format(
"Switched back to branch **%s**.\n",