@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;
}
@Nullable
public static VirtualFile findPatchTarget(
final ApplyPatchContext context,
final String beforeName,
final String afterName,
final boolean isNewFile)
throws IOException {
VirtualFile file = null;
if (beforeName != null) {
file = findFileToPatchByName(context, beforeName, isNewFile);
}
if (file == null) {
file = findFileToPatchByName(context, afterName, isNewFile);
} else if (context.isAllowRename() && afterName != null && !beforeName.equals(afterName)) {
String[] beforeNameComponents = beforeName.split("/");
String[] afterNameComponents = afterName.split("/");
if (!beforeNameComponents[beforeNameComponents.length - 1].equals(
afterNameComponents[afterNameComponents.length - 1])) {
context.registerBeforeRename(file);
file.rename(FilePatch.class, afterNameComponents[afterNameComponents.length - 1]);
context.addAffectedFile(file);
}
boolean needMove = (beforeNameComponents.length != afterNameComponents.length);
if (!needMove) {
needMove = checkPackageRename(context, beforeNameComponents, afterNameComponents);
}
if (needMove) {
VirtualFile moveTarget =
findFileToPatchByComponents(
context, afterNameComponents, afterNameComponents.length - 1);
if (moveTarget == null) {
return null;
}
context.registerBeforeRename(file);
file.move(FilePatch.class, moveTarget);
context.addAffectedFile(file);
}
}
return file;
}
public Result apply(
final VirtualFile fileToPatch,
final ApplyPatchContext context,
final Project project,
FilePath pathBeforeRename,
Getter<CharSequence> baseContents,
CommitContext commitContext)
throws IOException {
if (LOG.isDebugEnabled()) {
LOG.debug("apply patch called for : " + fileToPatch.getPath());
}
context.addAffectedFile(getTarget(fileToPatch));
if (myPatch.isNewFile()) {
applyCreate(fileToPatch, commitContext);
} else if (myPatch.isDeletedFile()) {
FileEditorManagerImpl.getInstance(project).closeFile(fileToPatch);
fileToPatch.delete(this);
} else {
return applyChange(project, fileToPatch, pathBeforeRename, baseContents);
}
return SUCCESS;
}