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ArcanistConduitLinter.php
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ArcanistConduitLinter.php
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<?php
/**
* Implements linting via Conduit RPC call.
*
* This linter is slow by definition, but allows sophisticated linting that
* relies on stuff like big indexes of a codebase. Recommended usage is to gate
* these to the advice lint level.
*
* The conduit endpoint should implement a method named the same as the value
* of `ArcanistConduitLinter::CONDUIT_METHOD`. It takes an array with a key
* `file_contents` which is an array mapping file paths to their complete
* contents. It should return an array mapping those same paths to arrays
* describing the lint for each path.
*
* The lint for a path is described as a list of structured dictionaries. The
* dictionary structure is effectively defined by
* `ArcanistLintMessage::newFromDictionary`.
*
* Effective keys are:
* - `path`: must match passed in path.
* - `line`
* - `char`
* - `code`
* - `severity`: must match a constant in @{class:ArcanistLintSeverity}.
* - `name`
* - `description`
* - `original` & `replacement`: optional patch information.
* - `locations`: other locations of the same error (in the same format).
*
* This class is intended for customization via instantiation, not via
* subclassing.
*/
final class ArcanistConduitLinter extends ArcanistLinter {
const CONDUIT_METHOD = 'lint.getalllint';
private $conduitURI;
private $linterName;
private $results;
public function __construct($conduit_uri = null, $linter_name = null) {
// TODO: Facebook uses this (probably?) but we need to be able to
// construct it without arguments for ".arclint".
$this->conduitURI = $conduit_uri;
$this->linterName = $linter_name;
}
public function getLinterName() {
return $this->linterName;
}
public function getLintNameMap() {
// See @{method:getLintSeverityMap} for rationale.
throw new ArcanistUsageException(
pht('%s does not support a name map.', __CLASS__));
}
public function getLintSeverityMap() {
// The rationale here is that this class will only be used for custom
// linting in installations. No two server endpoints will be the same across
// different instantiations. Therefore, the server can handle all severity
// customization directly.
throw new ArcanistUsageException(
pht(
'%s does not support client-side severity customization.',
__CLASS__));
}
protected function canCustomizeLintSeverities() {
return false;
}
public function willLintPaths(array $paths) {
// Load all file path data into $this->data.
array_map(array($this, 'getData'), $paths);
$conduit = new ConduitClient($this->conduitURI);
$this->results = $conduit->callMethodSynchronous(
self::CONDUIT_METHOD,
array(
'file_contents' => $this->data,
));
}
public function lintPath($path) {
$lints = idx($this->results, $path);
if (!$lints) {
return;
}
foreach ($lints as $lint) {
$this->addLintMessage(ArcanistLintMessage::newFromDictionary($lint));
}
}
}

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