Initial import.

1 files changed, 259 insertions, 0 deletions

diff --git a/ninja/src/clean.cc b/ninja/src/clean.cc
new file mode 100644
index 00000000000..5d1974e1582
--- /dev/null
+++ b/ninja/src/clean.cc
@@ -0,0 +1,259 @@
+// Copyright 2011 Google Inc. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "clean.h"
+
+#include <assert.h>
+#include <stdio.h>
+
+#include "disk_interface.h"
+#include "graph.h"
+#include "state.h"
+#include "util.h"
+
+Cleaner::Cleaner(State* state, const BuildConfig& config)
+  : state_(state),
+    config_(config),
+    removed_(),
+    cleaned_(),
+    cleaned_files_count_(0),
+    disk_interface_(new RealDiskInterface),
+    status_(0) {
+}
+
+Cleaner::Cleaner(State* state,
+                 const BuildConfig& config,
+                 DiskInterface* disk_interface)
+  : state_(state),
+    config_(config),
+    removed_(),
+    cleaned_(),
+    cleaned_files_count_(0),
+    disk_interface_(disk_interface),
+    status_(0) {
+}
+
+int Cleaner::RemoveFile(const string& path) {
+  return disk_interface_->RemoveFile(path);
+}
+
+bool Cleaner::FileExists(const string& path) {
+  return disk_interface_->Stat(path) > 0;
+}
+
+void Cleaner::Report(const string& path) {
+  ++cleaned_files_count_;
+  if (IsVerbose())
+    printf("Remove %s\n", path.c_str());
+}
+
+void Cleaner::Remove(const string& path) {
+  if (!IsAlreadyRemoved(path)) {
+    removed_.insert(path);
+    if (config_.dry_run) {
+      if (FileExists(path))
+        Report(path);
+    } else {
+      int ret = RemoveFile(path);
+      if (ret == 0)
+        Report(path);
+      else if (ret == -1)
+        status_ = 1;
+    }
+  }
+}
+
+bool Cleaner::IsAlreadyRemoved(const string& path) {
+  set<string>::iterator i = removed_.find(path);
+  return (i != removed_.end());
+}
+
+void Cleaner::RemoveEdgeFiles(Edge* edge) {
+  string depfile = edge->GetBinding("depfile");
+  if (!depfile.empty())
+    Remove(depfile);
+
+  string rspfile = edge->GetBinding("rspfile");
+  if (!rspfile.empty())
+    Remove(rspfile);
+}
+
+void Cleaner::PrintHeader() {
+  if (config_.verbosity == BuildConfig::QUIET)
+    return;
+  printf("Cleaning...");
+  if (IsVerbose())
+    printf("\n");
+  else
+    printf(" ");
+}
+
+void Cleaner::PrintFooter() {
+  if (config_.verbosity == BuildConfig::QUIET)
+    return;
+  printf("%d files.\n", cleaned_files_count_);
+}
+
+int Cleaner::CleanAll(bool generator) {
+  Reset();
+  PrintHeader();
+  for (vector<Edge*>::iterator e = state_->edges_.begin();
+       e != state_->edges_.end(); ++e) {
+    // Do not try to remove phony targets
+    if ((*e)->is_phony())
+      continue;
+    // Do not remove generator's files unless generator specified.
+    if (!generator && (*e)->GetBindingBool("generator"))
+      continue;
+    for (vector<Node*>::iterator out_node = (*e)->outputs_.begin();
+         out_node != (*e)->outputs_.end(); ++out_node) {
+      Remove((*out_node)->path());
+    }
+
+    RemoveEdgeFiles(*e);
+  }
+  PrintFooter();
+  return status_;
+}
+
+void Cleaner::DoCleanTarget(Node* target) {
+  if (Edge* e = target->in_edge()) {
+    // Do not try to remove phony targets
+    if (!e->is_phony()) {
+      Remove(target->path());
+      RemoveEdgeFiles(e);
+    }
+    for (vector<Node*>::iterator n = e->inputs_.begin(); n != e->inputs_.end();
+         ++n) {
+      Node* next = *n;
+      // call DoCleanTarget recursively if this node has not been visited
+      if (cleaned_.count(next) == 0) {
+        DoCleanTarget(next);
+      }
+    }
+  }
+
+  // mark this target to be cleaned already
+  cleaned_.insert(target);
+}
+
+int Cleaner::CleanTarget(Node* target) {
+  assert(target);
+
+  Reset();
+  PrintHeader();
+  DoCleanTarget(target);
+  PrintFooter();
+  return status_;
+}
+
+int Cleaner::CleanTarget(const char* target) {
+  assert(target);
+
+  Reset();
+  Node* node = state_->LookupNode(target);
+  if (node) {
+    CleanTarget(node);
+  } else {
+    Error("unknown target '%s'", target);
+    status_ = 1;
+  }
+  return status_;
+}
+
+int Cleaner::CleanTargets(int target_count, char* targets[]) {
+  Reset();
+  PrintHeader();
+  for (int i = 0; i < target_count; ++i) {
+    const char* target_name = targets[i];
+    Node* target = state_->LookupNode(target_name);
+    if (target) {
+      if (IsVerbose())
+        printf("Target %s\n", target_name);
+      DoCleanTarget(target);
+    } else {
+      Error("unknown target '%s'", target_name);
+      status_ = 1;
+    }
+  }
+  PrintFooter();
+  return status_;
+}
+
+void Cleaner::DoCleanRule(const Rule* rule) {
+  assert(rule);
+
+  for (vector<Edge*>::iterator e = state_->edges_.begin();
+       e != state_->edges_.end(); ++e) {
+    if ((*e)->rule().name() == rule->name()) {
+      for (vector<Node*>::iterator out_node = (*e)->outputs_.begin();
+           out_node != (*e)->outputs_.end(); ++out_node) {
+        Remove((*out_node)->path());
+        RemoveEdgeFiles(*e);
+      }
+    }
+  }
+}
+
+int Cleaner::CleanRule(const Rule* rule) {
+  assert(rule);
+
+  Reset();
+  PrintHeader();
+  DoCleanRule(rule);
+  PrintFooter();
+  return status_;
+}
+
+int Cleaner::CleanRule(const char* rule) {
+  assert(rule);
+
+  Reset();
+  const Rule* r = state_->LookupRule(rule);
+  if (r) {
+    CleanRule(r);
+  } else {
+    Error("unknown rule '%s'", rule);
+    status_ = 1;
+  }
+  return status_;
+}
+
+int Cleaner::CleanRules(int rule_count, char* rules[]) {
+  assert(rules);
+
+  Reset();
+  PrintHeader();
+  for (int i = 0; i < rule_count; ++i) {
+    const char* rule_name = rules[i];
+    const Rule* rule = state_->LookupRule(rule_name);
+    if (rule) {
+      if (IsVerbose())
+        printf("Rule %s\n", rule_name);
+      DoCleanRule(rule);
+    } else {
+      Error("unknown rule '%s'", rule_name);
+      status_ = 1;
+    }
+  }
+  PrintFooter();
+  return status_;
+}
+
+void Cleaner::Reset() {
+  status_ = 0;
+  cleaned_files_count_ = 0;
+  removed_.clear();
+  cleaned_.clear();
+}