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// Copyright 2017 Google Inc. All rights reserved.
//
// 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 java
// Rules for instrumenting classes using jacoco
import (
"fmt"
"strings"
"github.com/google/blueprint"
"android/soong/android"
)
var (
jacoco = pctx.AndroidStaticRule("jacoco", blueprint.RuleParams{
Command: `${config.Zip2ZipCmd} -i $in -o $strippedJar $stripSpec && ` +
`${config.JavaCmd} -jar ${config.JacocoCLIJar} instrument -quiet -dest $instrumentedJar $strippedJar && ` +
`${config.Ziptime} $instrumentedJar && ` +
`${config.MergeZipsCmd} --ignore-duplicates -j $out $instrumentedJar $in`,
CommandDeps: []string{
"${config.Zip2ZipCmd}",
"${config.JavaCmd}",
"${config.JacocoCLIJar}",
"${config.Ziptime}",
"${config.MergeZipsCmd}",
},
},
"strippedJar", "stripSpec", "instrumentedJar")
)
func jacocoInstrumentJar(ctx android.ModuleContext, outputJar, strippedJar android.WritablePath,
inputJar android.Path, stripSpec string) {
instrumentedJar := android.PathForModuleOut(ctx, "jacoco/instrumented.jar")
ctx.Build(pctx, android.BuildParams{
Rule: jacoco,
Description: "jacoco",
Output: outputJar,
ImplicitOutput: strippedJar,
Input: inputJar,
Args: map[string]string{
"strippedJar": strippedJar.String(),
"stripSpec": stripSpec,
"instrumentedJar": instrumentedJar.String(),
},
})
}
func (j *Module) jacocoModuleToZipCommand(ctx android.ModuleContext) string {
includes, err := jacocoFiltersToSpecs(j.properties.Jacoco.Include_filter)
if err != nil {
ctx.PropertyErrorf("jacoco.include_filter", "%s", err.Error())
}
excludes, err := jacocoFiltersToSpecs(j.properties.Jacoco.Exclude_filter)
if err != nil {
ctx.PropertyErrorf("jacoco.exclude_filter", "%s", err.Error())
}
return jacocoFiltersToZipCommand(includes, excludes)
}
func jacocoFiltersToZipCommand(includes, excludes []string) string {
specs := ""
if len(excludes) > 0 {
specs += android.JoinWithPrefix(excludes, "-x ") + " "
}
if len(includes) > 0 {
specs += strings.Join(includes, " ")
} else {
specs += "**/*.class"
}
return specs
}
func jacocoFiltersToSpecs(filters []string) ([]string, error) {
specs := make([]string, len(filters))
var err error
for i, f := range filters {
specs[i], err = jacocoFilterToSpec(f)
if err != nil {
return nil, err
}
}
return specs, nil
}
func jacocoFilterToSpec(filter string) (string, error) {
wildcard := strings.HasSuffix(filter, "*")
filter = strings.TrimSuffix(filter, "*")
recursiveWildcard := wildcard && (strings.HasSuffix(filter, ".") || filter == "")
if strings.ContainsRune(filter, '*') {
return "", fmt.Errorf("'*' is only supported as the last character in a filter")
}
spec := strings.Replace(filter, ".", "/", -1)
if recursiveWildcard {
spec += "**/*.class"
} else if wildcard {
spec += "*.class"
} else {
spec += ".class"
}
return spec, nil
}
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