/**
* 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");
}
}
}
/**
* Return those files where the timestamp is newer. If a source file timestamp suddenly is older
* than what is known about it in javac_state, then consider it modified, but print a warning!
*/
private Set<Source> calculateModifiedSources() {
Set<Source> modified = new HashSet<>();
for (String src : now.sources().keySet()) {
Source n = now.sources().get(src);
Source t = prev.sources().get(src);
if (prev.sources().get(src) != null) {
if (t != null) {
if (n.lastModified() > t.lastModified()) {
modified.add(n);
} else if (n.lastModified() < t.lastModified()) {
modified.add(n);
Log.warn("The source file " + n.name() + " timestamp has moved backwards in time.");
}
}
}
}
return modified;
}