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Code Issues Releases Wiki Activity

Allow users to define shell aliases in arc with "!"

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Summary: Git supports this feature (https://git.wiki.kernel.org/index.php/Aliases), it's fairly simple to implement, and gives us a little more ammunition to dissuade users with unusual workflow requirements from actually requesting features.

Test Plan: Defined the alias described in the documentation. Ran "arc ls", "arc ls -alh", etc.

Reviewers: btrahan, csilvers

Reviewed By: csilvers

CC: aran

Differential Revision: https://secure.phabricator.com/D2552
This commit is contained in:
epriestley 2012-05-23 17:52:37 -07:00
parent ed7034ab38
commit fb4f3c9446
2 changed files with 48 additions and 8 deletions
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37
scripts/arcanist.php
View file

@ -170,28 +170,51 @@ try {
// normally to prevent you from doing silly things like aliasing 'alias'
// to something else.
$aliases = ArcanistAliasWorkflow::getAliases($working_copy);
list($new_command, $args) = ArcanistAliasWorkflow::resolveAliases(
$command,
$config,
$args,
$working_copy);
$full_alias = idx($aliases, $command, array());
$full_alias = implode(' ', $full_alias);
// Run shell command aliases.
if (ArcanistAliasWorkflow::isShellCommandAlias($new_command)) {
$shell_cmd = substr($full_alias, 1);
if ($config_trace_mode) {
echo "[alias: 'arc {$command}' -> \$ {$full_alias}]\n";
}
if ($args) {
$err = phutil_passthru('%C %Ls', $shell_cmd, $args);
} else {
$err = phutil_passthru('%C', $shell_cmd);
}
exit($err);
}
// Run arc command aliases.
if ($new_command) {
$workflow = $config->buildWorkflow($new_command);
if ($workflow) {
if ($config_trace_mode) {
echo "[alias: 'arc {$command}' -> 'arc {$full_alias}']\n";
}
$command = $new_command;
}
}
if (!$workflow) {
throw new ArcanistUsageException(
"Unknown command '{$command}'. Try 'arc help'.");
} else {
if ($config_trace_mode) {
$aliases = ArcanistAliasWorkflow::getAliases($working_copy);
$target = implode(' ', idx($aliases, $command, array()));
echo "[alias: 'arc {$command}' -> 'arc {$target}']\n";
}
$command = $new_command;
}
}
$workflow->setArcanistConfiguration($config);
$workflow->setCommand($command);
$workflow->setWorkingDirectory($working_directory);

19
src/workflow/alias/ArcanistAliasWorkflow.php
View file

@ -44,6 +44,15 @@ EOTEXT
'arc patch --force ...' when run. NOTE: use "--" before specifying
options!
If you start an alias with "!", the remainder of the alias will be
invoked as a shell command. For example, if you want to implement
'arc ls', you can do so like this:
arc alias ls '!ls'
You can now run "arc ls" and it will behave like "ls". Of course, this
example is silly and would make your life worse.
You can not overwrite builtins, including 'alias' itself. The builtin
will always execute, even if it was added after your alias.
@ -124,7 +133,6 @@ EOTEXT
}
$aliases[$argv[0]] = array_slice($argv, 1);
echo phutil_console_format(
"Aliased '**arc %s**' to '**arc %s**'.\n",
$argv[0],
@ -136,6 +144,10 @@ EOTEXT
return 0;
}
public static function isShellCommandAlias($command) {
return preg_match('/^!/', $command);
}
public static function resolveAliases(
$command,
ArcanistConfiguration $config,
@ -148,6 +160,11 @@ EOTEXT
}
$new_command = head($aliases[$command]);
if (self::isShellCommandAlias($new_command)) {
return array($new_command, $argv);
}
$workflow = $config->buildWorkflow($new_command);
if (!$workflow) {
return array(null, $argv);