Summary:
See <https://github.com/facebook/arcanist/issues/102>. PHPCS changed its output format sometime between 1.4.6 (stable) and 1.5.0RC3.
Add a "no errors" test and make the linter work on both versions.
Test Plan: Ran `arc unit` on PHPCS 1.5.0RC3.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D6926
Summary:
Ref T3186. Ref T2039. Ref T3771. A few effects here:
# Expose PHPCS as a `.arclint` linter.
# Turn PHPCS into an ArcanistExternalLinter linter.
# Add test coverage for PHPCS.
# Add a `severity.rules` option to `.arclint`. Some linters have very explicit builtin severities ("error", "warning") but their meanings are different from how arc interprets these terms. For example, PHPCS raises "wrong indentation level" as an "error". You can already use the "severity" map to adjust individual rules, but if you want to adjust an entire linter it's currently difficult. This rule map makes it easy. There's substantial precedent for this in other linters, notably all the Python linters.
For `severity.rules`, for example, this will turn all PHPCS "errors" into warnings, and all of its warnings into advice:
"severity.rules" : {
"(^PHPCS\\.E\\.)" : "warning",
"(^PHPCS\\.W\\.)" : "advice"
}
The user can use `severity` (or more rules) to get additional granularity adjustments if they desire.
Test Plan: 5bb919bc3a
Reviewers: btrahan
Reviewed By: btrahan
CC: aran, ajtrichards
Maniphest Tasks: T2039, T3186, T3771
Differential Revision: https://secure.phabricator.com/D6830
