/**
* Go through all sources and check which have been removed, added or modified and taint the
* corresponding packages.
*/
public void checkSourceStatus(boolean check_gensrc) {
removedSources = calculateRemovedSources();
for (Source s : removedSources) {
if (!s.isGenerated() || check_gensrc) {
taintPackage(s.pkg().name(), "source " + s.name() + " was removed");
}
}
addedSources = calculateAddedSources();
for (Source s : addedSources) {
String msg = null;
if (isIncremental()) {
// When building from scratch, there is no point
// printing "was added" for every file since all files are added.
// However for an incremental build it makes sense.
msg = "source " + s.name() + " was added";
}
if (!s.isGenerated() || check_gensrc) {
taintPackage(s.pkg().name(), msg);
}
}
modifiedSources = calculateModifiedSources();
for (Source s : modifiedSources) {
if (!s.isGenerated() || check_gensrc) {
taintPackage(s.pkg().name(), "source " + s.name() + " was modified");
}
}
}
/** Store the source into the set of sources belonging to the given transform. */
private void addFileToTransform(
Map<Transformer, Map<String, Set<URI>>> gs, Transformer t, Source s) {
Map<String, Set<URI>> fs = gs.get(t);
if (fs == null) {
fs = new HashMap<>();
gs.put(t, fs);
}
Set<URI> ss = fs.get(s.pkg().name());
if (ss == null) {
ss = new HashSet<>();
fs.put(s.pkg().name(), ss);
}
ss.add(s.file().toURI());
}
/**
* For all packages, find all sources belonging to the package, group the sources based on their
* transformers and apply the transformers on each source code group.
*/
private boolean perform(File outputDir, Map<String, Transformer> suffixRules) {
boolean rc = true;
// Group sources based on transforms. A source file can only belong to a single transform.
Map<Transformer, Map<String, Set<URI>>> groupedSources = new HashMap<>();
for (Source src : now.sources().values()) {
Transformer t = suffixRules.get(src.suffix());
if (t != null) {
if (taintedPackages.contains(src.pkg().name()) && !src.isLinkedOnly()) {
addFileToTransform(groupedSources, t, src);
}
}
}
// Go through the transforms and transform them.
for (Map.Entry<Transformer, Map<String, Set<URI>>> e : groupedSources.entrySet()) {
Transformer t = e.getKey();
Map<String, Set<URI>> srcs = e.getValue();
// These maps need to be synchronized since multiple threads will be writing results into
// them.
Map<String, Set<URI>> packageArtifacts =
Collections.synchronizedMap(new HashMap<String, Set<URI>>());
Map<String, Set<String>> packageDependencies =
Collections.synchronizedMap(new HashMap<String, Set<String>>());
Map<String, String> packagePublicApis =
Collections.synchronizedMap(new HashMap<String, String>());
boolean r =
t.transform(
srcs,
visibleSrcs,
visibleClasses,
prev.dependents(),
outputDir.toURI(),
packageArtifacts,
packageDependencies,
packagePublicApis,
0,
isIncremental(),
numCores,
out,
err);
if (!r) rc = false;
for (String p : srcs.keySet()) {
recompiledPackages.add(p);
}
// The transform is done! Extract all the artifacts and store the info into the Package
// objects.
for (Map.Entry<String, Set<URI>> a : packageArtifacts.entrySet()) {
Module mnow = now.findModuleFromPackageName(a.getKey());
mnow.addArtifacts(a.getKey(), a.getValue());
}
// Extract all the dependencies and store the info into the Package objects.
for (Map.Entry<String, Set<String>> a : packageDependencies.entrySet()) {
Set<String> deps = a.getValue();
Module mnow = now.findModuleFromPackageName(a.getKey());
mnow.setDependencies(a.getKey(), deps);
}
// Extract all the pubapis and store the info into the Package objects.
for (Map.Entry<String, String> a : packagePublicApis.entrySet()) {
Module mprev = prev.findModuleFromPackageName(a.getKey());
List<String> pubapi = Package.pubapiToList(a.getValue());
Module mnow = now.findModuleFromPackageName(a.getKey());
mnow.setPubapi(a.getKey(), pubapi);
if (mprev.hasPubapiChanged(a.getKey(), pubapi)) {
// Aha! The pubapi of this package has changed!
// It can also be a new compile from scratch.
if (mprev.lookupPackage(a.getKey()).existsInJavacState()) {
// This is an incremental compile! The pubapi
// did change. Trigger recompilation of dependents.
packagesWithChangedPublicApis.add(a.getKey());
Log.info("The pubapi of " + Util.justPackageName(a.getKey()) + " has changed!");
}
}
}
}
return rc;
}