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Detect library conflicts in Arcanist and raise a very specific error message
Summary: When you run one copy of arcanist against another copy, you previously got a meaningless error. After D311 you get a slightly more meaningful error. Capture the new exception and raise an extremely specific error. NOTE: Adding arcanist to .arcconfig forces the library conflict error to trigger; otherwise there's just an implicit conflict because 'arc' reads the running-copy library amp instead of the working-copy library map. This only worked before because arcanist includes itself. Test Plan: Ran arcanist on a different copy of arcanist, got a good error message. Reviewed By: jungejason Reviewers: jungejason, tuomaspelkonen, aran CC: aran, jungejason, epriestley Differential Revision: 312
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2 changed files with 18 additions and 1 deletions
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@ -4,5 +4,8 @@
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"lint_engine" : "PhutilLintEngine",
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"unit_engine" : "PhutilUnitTestEngine",
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"remote_hooks_installed" : true,
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"copyright_holder" : "Facebook, Inc."
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"copyright_holder" : "Facebook, Inc.",
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"phutil_libraries" : {
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"arcanist" : "src/"
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}
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}
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@ -100,6 +100,20 @@ try {
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$name,
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$location);
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throw new ArcanistUsageException($error_msg);
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} catch (PhutilLibraryConflictException $ex) {
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if ($ex->getLibrary() != 'arcanist') {
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throw $ex;
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}
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$arc_dir = dirname(dirname(__FILE__));
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$error_msg =
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"You are trying to run one copy of Arcanist on another copy of ".
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"Arcanist. This operation is not supported. To execute Arcanist ".
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"operations against this working copy, run './bin/arc' (from the ".
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"current working copy) not some other copy of 'arc' (you ran one ".
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"from '{$arc_dir}').";
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throw new ArcanistUsageException($error_msg);
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}
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}
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}
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