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phorge/src/applications/config/check/PhabricatorPathSetupCheck.php
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PhabricatorPathSetupCheck.php
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<?php
final class PhabricatorPathSetupCheck extends PhabricatorSetupCheck {
public function getDefaultGroup() {
return self::GROUP_OTHER;
}
protected function executeChecks() {
// NOTE: We've already appended `environment.append-paths`, so we don't
// need to explicitly check for it.
$path = getenv('PATH');
if (!$path) {
$summary = pht(
'The environmental variable $PATH is empty. Phabricator will not '.
'be able to execute some commands.');
$message = pht(
'The environmental variable $PATH is empty. Phabricator needs to '.
'execute some system commands, like `svn`, `git`, `hg`, and `diff`. '.
'To execute these commands, the binaries must be available in the '.
'webserver\'s $PATH. You can set additional paths in Phabricator '.
'configuration.');
$this
->newIssue('config.environment.append-paths')
->setName(pht('$PATH Not Set'))
->setSummary($summary)
->setMessage($message)
->addPhabricatorConfig('environment.append-paths');
// Bail on checks below.
return;
}
// Users are remarkably industrious at misconfiguring software. Try to
// catch mistaken configuration of PATH.
$path_parts = explode(PATH_SEPARATOR, $path);
$bad_paths = array();
foreach ($path_parts as $path_part) {
if (!strlen($path_part)) {
continue;
}
$message = null;
$not_exists = false;
foreach (Filesystem::walkToRoot($path_part) as $part) {
if (!Filesystem::pathExists($part)) {
$not_exists = $part;
// Walk up so we can tell if this is a readability issue or not.
continue;
} else if (!is_dir(Filesystem::resolvePath($part))) {
$message = pht(
"The PATH component '%s' (which resolves as the absolute path ".
"'%s') is not usable because '%s' is not a directory.",
$path_part,
Filesystem::resolvePath($path_part),
$part);
} else if (!is_readable($part)) {
$message = pht(
"The PATH component '%s' (which resolves as the absolute path ".
"'%s') is not usable because '%s' is not readable.",
$path_part,
Filesystem::resolvePath($path_part),
$part);
} else if ($not_exists) {
$message = pht(
"The PATH component '%s' (which resolves as the absolute path ".
"'%s') is not usable because '%s' does not exist.",
$path_part,
Filesystem::resolvePath($path_part),
$not_exists);
} else {
// Everything seems good.
break;
}
if ($message !== null) {
break;
}
}
if ($message === null) {
if (!phutil_is_windows() && !@file_exists($path_part.'/.')) {
$message = pht(
"The PATH component '%s' (which resolves as the absolute path ".
"'%s') is not usable because it is not traversable (its '+x' ".
"permission bit is not set).",
$path_part,
Filesystem::resolvePath($path_part));
}
}
if ($message !== null) {
$bad_paths[$path_part] = $message;
}
}
if ($bad_paths) {
foreach ($bad_paths as $path_part => $message) {
$digest = substr(PhabricatorHash::digest($path_part), 0, 8);
$this
->newIssue('config.PATH.'.$digest)
->setName(pht('$PATH Component Unusable'))
->setSummary(
pht(
'A component of the configured PATH can not be used by '.
'the webserver: %s',
$path_part))
->setMessage(
pht(
"The configured PATH includes a component which is not usable. ".
"Phabricator will be unable to find or execute binaries located ".
"here:".
"\n\n".
"%s".
"\n\n".
"The user that the webserver runs as must be able to read all ".
"the directories in PATH in order to make use of them.",
$message))
->addPhabricatorConfig('environment.append-paths');
}
}
}
}

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