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Tools/GardeningServer/scripts/model.js

-/*
- * Copyright (C) 2011 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
- * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-var model = model || {};
-
-(function () {
-
-var kCommitLogLength = 50;
-
-model.state = {};
-model.state.failureAnalysisByTest = {};
-
-function findAndMarkRevertedRevisions(commitDataList)
-{
-    var revertedRevisions = {};
-    Object.keys(commitDataList, function(index, commitData) {
-        if (commitData.revertedRevision)
-            revertedRevisions[commitData.revertedRevision] = true;
-    });
-    Object.keys(commitDataList, function(index, commitData) {
-        if (commitData.revision in revertedRevisions)
-            commitData.wasReverted = true;
-    });
-}
-
-function fuzzyFind(testName, commitData)
-{
-    var indexOfLastDot = testName.lastIndexOf('.');
-    var stem = indexOfLastDot == -1 ? testName : testName.substr(0, indexOfLastDot);
-    return commitData.message.indexOf(stem) != -1;
-}
-
-function heuristicallyNarrowRegressionRange(failureAnalysis)
-{
-    var commitDataList = model.state.recentCommits;
-    var commitDataIndex = commitDataList.length - 1;
-
-    for(var revision = failureAnalysis.newestPassingRevision + 1; revision <= failureAnalysis.oldestFailingRevision; ++revision) {
-        while (commitDataIndex >= 0 && commitDataList[commitDataIndex].revision < revision)
-            --commitDataIndex;
-        var commitData = commitDataList[commitDataIndex];
-        if (commitData.revision != revision)
-            continue;
-        if (fuzzyFind(failureAnalysis.testName, commitData)) {
-            failureAnalysis.oldestFailingRevision = revision;
-            failureAnalysis.newestPassingRevision = revision - 1;
-            return;
-        }
-    }
-}
-
-var g_commitIndex = {};
-
-model.updateRecentCommits = function()
-{
-    return trac.recentCommitData('trunk', kCommitLogLength).then(function(commitDataList) {
-        model.state.recentCommits = commitDataList;
-        updateCommitIndex();
-        findAndMarkRevertedRevisions(model.state.recentCommits);
-    });
-};
-
-function updateCommitIndex()
-{
-    model.state.recentCommits.forEach(function(commitData) {
-        g_commitIndex[commitData.revision] = commitData;
-    });
-}
-
-model.commitDataListForRevisionRange = function(fromRevision, toRevision)
-{
-    var result = [];
-    for (var revision = fromRevision; revision <= toRevision; ++revision) {
-        var commitData = g_commitIndex[revision];
-        if (commitData)
-            result.push(commitData);
-    }
-    return result;
-};
-
-model.buildersInFlightForRevision = function(revision)
-{
-    var builders = {};
-    Object.keys(model.state.resultsByBuilder).forEach(function(builderName) {
-        var results = model.state.resultsByBuilder[builderName];
-        if (parseInt(results.blink_revision) < revision)
-            builders[builderName] = { actual: 'BUILDING' };
-    });
-    return builders;
-};
-
-model.updateResultsByBuilder = function()
-{
-    return results.fetchResultsByBuilder(Object.keys(config.builders)).then(function(resultsByBuilder) {
-        model.state.resultsByBuilder = resultsByBuilder;
-    });
-};
-
-// failureCallback is called multiple times: once for each failure
-model.analyzeUnexpectedFailures = function(failureCallback)
-{
-    var unexpectedFailures = results.unexpectedFailuresByTest(model.state.resultsByBuilder);
-
-    Object.keys(model.state.failureAnalysisByTest, function(testName, failureAnalysis) {
-        if (!(testName in unexpectedFailures))
-            delete model.state.failureAnalysisByTest[testName];
-    });
-
-    var failurePromises = [];
-    Object.keys(unexpectedFailures, function(testName, resultNodesByBuilder) {
-        var builderNameList = Object.keys(resultNodesByBuilder);
-        failurePromises.push(results.unifyRegressionRanges(builderNameList, testName).then(function(result) {
-            var oldestFailingRevision = result[0];
-            var newestPassingRevision = result[1];
-            var failureAnalysis = {
-                'testName': testName,
-                'resultNodesByBuilder': resultNodesByBuilder,
-                'oldestFailingRevision': oldestFailingRevision,
-                'newestPassingRevision': newestPassingRevision,
-            };
-
-            heuristicallyNarrowRegressionRange(failureAnalysis);
-
-            var previousFailureAnalysis = model.state.failureAnalysisByTest[testName];
-            if (previousFailureAnalysis
-                && previousFailureAnalysis.oldestFailingRevision <= failureAnalysis.oldestFailingRevision
-                && previousFailureAnalysis.newestPassingRevision >= failureAnalysis.newestPassingRevision) {
-                failureAnalysis.oldestFailingRevision = previousFailureAnalysis.oldestFailingRevision;
-                failureAnalysis.newestPassingRevision = previousFailureAnalysis.newestPassingRevision;
-            }
-
-            model.state.failureAnalysisByTest[testName] = failureAnalysis;
-
-            failureCallback(failureAnalysis, failurePromises.length);
-        }));
-    });
-    return Promise.all(failurePromises);
-};
-
-})();