@Nullable
private static VirtualFile findFileToPatchByComponents(
ApplyPatchContext context, final String[] pathNameComponents, final int lastComponentToFind) {
VirtualFile patchedDir = context.getBaseDir();
for (int i = context.getSkipTopDirs(); i < lastComponentToFind; i++) {
VirtualFile nextChild;
if (pathNameComponents[i].equals("..")) {
nextChild = patchedDir.getParent();
} else {
nextChild = patchedDir.findChild(pathNameComponents[i]);
}
if (nextChild == null) {
if (context.isCreateDirectories()) {
try {
nextChild = patchedDir.createChildDirectory(null, pathNameComponents[i]);
} catch (IOException e) {
return null;
}
} else {
context.registerMissingDirectory(patchedDir, pathNameComponents, i);
return null;
}
}
patchedDir = nextChild;
}
return patchedDir;
}
private static boolean checkPackageRename(
final ApplyPatchContext context,
final String[] beforeNameComponents,
final String[] afterNameComponents) {
int changedIndex = -1;
for (int i = context.getSkipTopDirs(); i < afterNameComponents.length - 1; i++) {
if (!beforeNameComponents[i].equals(afterNameComponents[i])) {
if (changedIndex != -1) {
return true;
}
changedIndex = i;
}
}
if (changedIndex == -1) return false;
VirtualFile oldDir =
findFileToPatchByComponents(context, beforeNameComponents, changedIndex + 1);
VirtualFile newDir =
findFileToPatchByComponents(
context.getPrepareContext(), afterNameComponents, changedIndex + 1);
if (oldDir != null && newDir == null) {
context.addPendingRename(oldDir, afterNameComponents[changedIndex]);
return false;
}
return true;
}