Shard aidl compiles into srcjars
Group aidl files into groups of 50 and compile them together into a
srcjar.
Bug: 124333557
Test: m checkbuild
Change-Id: I18e0858eab434071d3ff0039bb21e07c7311b601
diff --git a/java/gen.go b/java/gen.go
index 8a90246..d50a665 100644
--- a/java/gen.go
+++ b/java/gen.go
@@ -15,9 +15,11 @@
package java
import (
+ "strconv"
"strings"
"github.com/google/blueprint"
+ "github.com/google/blueprint/pathtools"
"android/soong/android"
)
@@ -29,13 +31,6 @@
}
var (
- aidl = pctx.AndroidStaticRule("aidl",
- blueprint.RuleParams{
- Command: "${config.AidlCmd} -d$depFile $aidlFlags $in $out",
- CommandDeps: []string{"${config.AidlCmd}"},
- },
- "depFile", "aidlFlags")
-
logtags = pctx.AndroidStaticRule("logtags",
blueprint.RuleParams{
Command: "$logtagsCmd -o $out $in",
@@ -49,23 +44,64 @@
})
)
-func genAidl(ctx android.ModuleContext, aidlFile android.Path, aidlFlags string, deps android.Paths) android.Path {
- javaFile := android.GenPathWithExt(ctx, "aidl", aidlFile, "java")
- depFile := javaFile.String() + ".d"
+func genAidl(ctx android.ModuleContext, aidlFiles android.Paths, aidlFlags string, deps android.Paths) android.Paths {
+ // Shard aidl files into groups of 50 to avoid having to recompile all of them if one changes and to avoid
+ // hitting command line length limits.
+ shards := android.ShardPaths(aidlFiles, 50)
- ctx.Build(pctx, android.BuildParams{
- Rule: aidl,
- Description: "aidl " + aidlFile.Rel(),
- Output: javaFile,
- Input: aidlFile,
- Implicits: deps,
- Args: map[string]string{
- "depFile": depFile,
- "aidlFlags": aidlFlags,
- },
- })
+ srcJarFiles := make(android.Paths, 0, len(shards))
- return javaFile
+ for i, shard := range shards {
+ srcJarFile := android.PathForModuleGen(ctx, "aidl", "aidl"+strconv.Itoa(i)+".srcjar")
+ srcJarFiles = append(srcJarFiles, srcJarFile)
+
+ outDir := srcJarFile.ReplaceExtension(ctx, "tmp")
+
+ rule := android.NewRuleBuilder()
+
+ rule.Command().Text("rm -rf").Flag(outDir.String())
+ rule.Command().Text("mkdir -p").Flag(outDir.String())
+ rule.Command().Text("FLAGS=' " + aidlFlags + "'")
+
+ for _, aidlFile := range shard {
+ depFile := srcJarFile.InSameDir(ctx, aidlFile.String()+".d")
+ javaFile := outDir.Join(ctx, pathtools.ReplaceExtension(aidlFile.String(), "java"))
+ rule.Command().
+ Tool(ctx.Config().HostToolPath(ctx, "aidl")).
+ FlagWithDepFile("-d", depFile).
+ Flag("$FLAGS").
+ Input(aidlFile).
+ Output(javaFile).
+ Implicits(deps)
+ rule.Temporary(javaFile)
+ }
+
+ rule.Command().
+ Tool(ctx.Config().HostToolPath(ctx, "soong_zip")).
+ // TODO(b/124333557): this can't use -srcjar for now, aidl on parcelables generates java files
+ // without a package statement, which causes -srcjar to put them in the top level of the zip file.
+ // Once aidl skips parcelables we can use -srcjar.
+ //Flag("-srcjar").
+ Flag("-write_if_changed").
+ FlagWithOutput("-o ", srcJarFile).
+ FlagWithArg("-C ", outDir.String()).
+ FlagWithArg("-D ", outDir.String())
+
+ rule.Command().Text("rm -rf").Flag(outDir.String())
+
+ rule.Restat()
+
+ ruleName := "aidl"
+ ruleDesc := "aidl"
+ if len(shards) > 1 {
+ ruleName += "_" + strconv.Itoa(i)
+ ruleDesc += " " + strconv.Itoa(i)
+ }
+
+ rule.Build(pctx, ctx, ruleName, ruleDesc)
+ }
+
+ return srcJarFiles
}
func genLogtags(ctx android.ModuleContext, logtagsFile android.Path) android.Path {
@@ -99,14 +135,14 @@
outSrcFiles := make(android.Paths, 0, len(srcFiles))
var protoSrcs android.Paths
+ var aidlSrcs android.Paths
aidlIncludeFlags := genAidlIncludeFlags(srcFiles)
for _, srcFile := range srcFiles {
switch srcFile.Ext() {
case ".aidl":
- javaFile := genAidl(ctx, srcFile, flags.aidlFlags+aidlIncludeFlags, flags.aidlDeps)
- outSrcFiles = append(outSrcFiles, javaFile)
+ aidlSrcs = append(aidlSrcs, srcFile)
case ".logtags":
j.logtagsSrcs = append(j.logtagsSrcs, srcFile)
javaFile := genLogtags(ctx, srcFile)
@@ -124,6 +160,12 @@
outSrcFiles = append(outSrcFiles, srcJarFiles...)
}
+ // Process all aidl files together to support sharding them into one or more rules that produce srcjars.
+ if len(aidlSrcs) > 0 {
+ srcJarFiles := genAidl(ctx, aidlSrcs, flags.aidlFlags+aidlIncludeFlags, flags.aidlDeps)
+ outSrcFiles = append(outSrcFiles, srcJarFiles...)
+ }
+
return outSrcFiles
}