forked from gradle/gradle
/
IncrementalResultStoringCompiler.java
188 lines (171 loc) · 10.7 KB
/
IncrementalResultStoringCompiler.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
/*
* Copyright 2013 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.gradle.api.internal.tasks.compile.incremental;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterables;
import org.gradle.api.GradleException;
import org.gradle.api.internal.tasks.compile.ApiCompilerResult;
import org.gradle.api.internal.tasks.compile.JavaCompileSpec;
import org.gradle.api.internal.tasks.compile.incremental.compilerapi.CompilerApiData;
import org.gradle.api.internal.tasks.compile.incremental.compilerapi.constants.ConstantToDependentsMapping;
import org.gradle.api.internal.tasks.compile.incremental.compilerapi.constants.ConstantToDependentsMappingMerger;
import org.gradle.api.internal.tasks.compile.incremental.compilerapi.deps.GeneratedResource;
import org.gradle.api.internal.tasks.compile.incremental.deps.ClassSetAnalysisData;
import org.gradle.api.internal.tasks.compile.incremental.processing.AnnotationProcessingData;
import org.gradle.api.internal.tasks.compile.incremental.processing.AnnotationProcessingResult;
import org.gradle.api.internal.tasks.compile.incremental.recomp.CurrentCompilationAccess;
import org.gradle.api.internal.tasks.compile.incremental.recomp.IncrementalCompilationResult;
import org.gradle.api.internal.tasks.compile.incremental.recomp.PreviousCompilationAccess;
import org.gradle.api.internal.tasks.compile.incremental.recomp.PreviousCompilationData;
import org.gradle.api.internal.tasks.compile.incremental.recomp.RecompilationSpec;
import org.gradle.api.internal.tasks.compile.processing.AnnotationProcessorDeclaration;
import org.gradle.api.tasks.WorkResult;
import org.gradle.language.base.internal.compile.Compiler;
import java.io.File;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Objects;
import java.util.Set;
/**
* Stores the incremental class dependency analysis after compilation has finished.
*/
class IncrementalResultStoringCompiler<T extends JavaCompileSpec> implements Compiler<T> {
private final Compiler<T> delegate;
private final CurrentCompilationAccess classpathSnapshotter;
private final PreviousCompilationAccess previousCompilationAccess;
IncrementalResultStoringCompiler(Compiler<T> delegate, CurrentCompilationAccess classpathSnapshotter, PreviousCompilationAccess previousCompilationAccess) {
this.delegate = delegate;
this.classpathSnapshotter = classpathSnapshotter;
this.previousCompilationAccess = previousCompilationAccess;
}
@Override
public WorkResult execute(T spec) {
WorkResult result = delegate.execute(spec);
if (result instanceof RecompilationNotNecessary) {
return result;
}
storeResult(spec, result);
return result;
}
private void storeResult(JavaCompileSpec spec, WorkResult result) {
ClassSetAnalysisData outputSnapshot = classpathSnapshotter.analyzeOutputFolder(spec.getDestinationDir());
ClassSetAnalysisData classpathSnapshot = classpathSnapshotter.getClasspathSnapshot(Iterables.concat(spec.getCompileClasspath(), spec.getModulePath()));
AnnotationProcessingData annotationProcessingData = getAnnotationProcessingData(spec, result);
CompilerApiData compilerApiData = getCompilerApiData(spec, result);
ClassSetAnalysisData minimizedClasspathSnapshot = classpathSnapshot.reduceToTypesAffecting(outputSnapshot, compilerApiData);
PreviousCompilationData data = new PreviousCompilationData(outputSnapshot, annotationProcessingData, minimizedClasspathSnapshot, compilerApiData);
File previousCompilationDataFile = Objects.requireNonNull(spec.getCompileOptions().getPreviousCompilationDataFile());
previousCompilationAccess.writePreviousCompilationData(data, previousCompilationDataFile);
}
private CompilerApiData getCompilerApiData(JavaCompileSpec spec, WorkResult result) {
if (spec.getCompileOptions().supportsCompilerApi()) {
CompilerApiData previousCompilerApiData = null;
RecompilationSpec recompilationSpec = null;
if (result instanceof IncrementalCompilationResult) {
previousCompilerApiData = ((IncrementalCompilationResult) result).getPreviousCompilationData().getCompilerApiData();
recompilationSpec = ((IncrementalCompilationResult) result).getRecompilationSpec();
result = ((IncrementalCompilationResult) result).getCompilerResult();
}
Set<String> changedClasses = recompilationSpec == null ? Collections.emptySet() : recompilationSpec.getClassesToCompile();
ConstantToDependentsMapping previousConstantToDependentsMapping = previousCompilerApiData == null ? null : previousCompilerApiData.getConstantToClassMapping();
Map<String, Set<String>> previousSourceClassesMapping = previousCompilerApiData == null ? null : previousCompilerApiData.getSourceToClassMapping();
if (result instanceof ApiCompilerResult) {
ApiCompilerResult jdkJavaResult = (ApiCompilerResult) result;
ConstantToDependentsMapping newConstantsToDependentsMapping = jdkJavaResult.getConstantsAnalysisResult()
.getConstantToDependentsMapping()
.orElseThrow(() -> new GradleException("Constants to dependents mapping not present, but it should be"));
Map<String, Set<String>> newSourceClassesMapping = jdkJavaResult.getSourceClassesMapping();
Map<String, Set<String>> mergedSourceClassesMapping;
if (previousSourceClassesMapping == null) {
mergedSourceClassesMapping = newSourceClassesMapping;
} else {
mergedSourceClassesMapping = mergeSourceClassesMappings(previousSourceClassesMapping, newSourceClassesMapping, changedClasses);
}
ConstantToDependentsMapping mergedConstants = new ConstantToDependentsMappingMerger().merge(newConstantsToDependentsMapping, previousConstantToDependentsMapping, changedClasses);
if (spec.getCompileOptions().supportsConstantAnalysis()) {
return CompilerApiData.withConstantsMapping(mergedSourceClassesMapping, mergedConstants);
} else {
return CompilerApiData.withoutConstantsMapping(mergedSourceClassesMapping);
}
}
}
return CompilerApiData.unavailable();
}
private Map<String, Set<String>> mergeSourceClassesMappings(Map<String, Set<String>> previousSourceClassesMapping, Map<String, Set<String>> newSourceClassesMapping, Set<String> changedClasses) {
Map<String, Set<String>> merged = new HashMap<>(previousSourceClassesMapping);
merged.keySet().removeAll(changedClasses);
for (Map.Entry<String, Set<String>> entry : newSourceClassesMapping.entrySet()) {
merged.computeIfAbsent(entry.getKey(), key -> new HashSet<>()).addAll(entry.getValue());
}
return merged;
}
private AnnotationProcessingData getAnnotationProcessingData(JavaCompileSpec spec, WorkResult result) {
Set<AnnotationProcessorDeclaration> processors = spec.getEffectiveAnnotationProcessors();
if (processors.isEmpty()) {
return new AnnotationProcessingData();
}
AnnotationProcessingData previousAnnotationProcessingData = null;
RecompilationSpec recompilationSpec = null;
if (result instanceof IncrementalCompilationResult) {
previousAnnotationProcessingData = ((IncrementalCompilationResult) result).getPreviousCompilationData().getAnnotationProcessingData();
recompilationSpec = ((IncrementalCompilationResult) result).getRecompilationSpec();
result = ((IncrementalCompilationResult) result).getCompilerResult();
}
Set<String> changedClasses = recompilationSpec == null ? Collections.emptySet() : recompilationSpec.getClassesToCompile();
if (result instanceof ApiCompilerResult) {
AnnotationProcessingResult processingResult = ((ApiCompilerResult) result).getAnnotationProcessingResult();
AnnotationProcessingData newAnnotationProcessingData = new AnnotationProcessingData(
processingResult.getGeneratedTypesWithIsolatedOrigin(),
processingResult.getAggregatedTypes(),
processingResult.getGeneratedAggregatingTypes(),
processingResult.getGeneratedResourcesWithIsolatedOrigin(),
processingResult.getGeneratedAggregatingResources(),
processingResult.getFullRebuildCause()
);
if (previousAnnotationProcessingData == null) {
return newAnnotationProcessingData;
}
return mergeAnnotationProcessingData(previousAnnotationProcessingData, newAnnotationProcessingData, changedClasses);
}
return new AnnotationProcessingData(
ImmutableMap.of(),
ImmutableSet.of(),
ImmutableSet.of(),
ImmutableMap.of(),
ImmutableSet.of(),
"the chosen compiler did not support incremental annotation processing"
);
}
private AnnotationProcessingData mergeAnnotationProcessingData(AnnotationProcessingData oldData, AnnotationProcessingData newData, Set<String> changedClasses) {
Map<String, Set<String>> generatedTypesByOrigin = new HashMap<>(oldData.getGeneratedTypesByOrigin());
changedClasses.forEach(generatedTypesByOrigin::remove);
generatedTypesByOrigin.putAll(newData.getGeneratedTypesByOrigin());
Map<String, Set<GeneratedResource>> generatedResourcesByOrigin = new HashMap<>(oldData.getGeneratedResourcesByOrigin());
changedClasses.forEach(generatedResourcesByOrigin::remove);
generatedResourcesByOrigin.putAll(newData.getGeneratedResourcesByOrigin());
return new AnnotationProcessingData(
generatedTypesByOrigin,
newData.getAggregatedTypes(),
newData.getGeneratedTypesDependingOnAllOthers(),
generatedResourcesByOrigin,
newData.getGeneratedResourcesDependingOnAllOthers(),
newData.getFullRebuildCause()
);
}
}