Make make_parent() to take const argument
Switch to use const std::string; and add corresponding tests.
Bug: 32649858
Test: Component tests pass
Change-Id: I640f3ec81f1481fa91aa310f8d4d96dac9649cb9
diff --git a/updater/install.cpp b/updater/install.cpp
index ed55ea5..cba95f5 100644
--- a/updater/install.cpp
+++ b/updater/install.cpp
@@ -95,25 +95,33 @@
uiPrint(state, error_msg);
}
+static bool is_dir(const std::string& dirpath) {
+ struct stat st;
+ return stat(dirpath.c_str(), &st) == 0 && S_ISDIR(st.st_mode);
+}
+
// Create all parent directories of name, if necessary.
-static int make_parents(char* name) {
- char* p;
- for (p = name + (strlen(name)-1); p > name; --p) {
- if (*p != '/') continue;
- *p = '\0';
- if (make_parents(name) < 0) return -1;
- int result = mkdir(name, 0700);
- if (result == 0) printf("created [%s]\n", name);
- *p = '/';
- if (result == 0 || errno == EEXIST) {
- // successfully created or already existed; we're done
- return 0;
- } else {
- printf("failed to mkdir %s: %s\n", name, strerror(errno));
- return -1;
+static bool make_parents(const std::string& name) {
+ size_t prev_end = 0;
+ while (prev_end < name.size()) {
+ size_t next_end = name.find('/', prev_end + 1);
+ if (next_end == std::string::npos) {
+ break;
}
+ std::string dir_path = name.substr(0, next_end);
+ if (!is_dir(dir_path)) {
+ int result = mkdir(dir_path.c_str(), 0700);
+ if (result != 0) {
+ printf("failed to mkdir %s when make parents for %s: %s\n", dir_path.c_str(),
+ name.c_str(), strerror(errno));
+ return false;
+ }
+
+ printf("created [%s]\n", dir_path.c_str());
+ }
+ prev_end = next_end;
}
- return 0;
+ return true;
}
// mount(fs_type, partition_type, location, mount_point)
@@ -342,7 +350,7 @@
return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
}
const std::string& src_name = args[0];
- std::string& dst_name = args[1];
+ const std::string& dst_name = args[1];
if (src_name.empty()) {
return ErrorAbort(state, kArgsParsingFailure, "src_name argument to %s() can't be empty",
@@ -352,7 +360,7 @@
return ErrorAbort(state, kArgsParsingFailure, "dst_name argument to %s() can't be empty",
name);
}
- if (make_parents(&dst_name[0]) != 0) {
+ if (!make_parents(dst_name)) {
return ErrorAbort(state, kFileRenameFailure, "Creating parent of %s failed, error %s",
dst_name.c_str(), strerror(errno));
} else if (access(dst_name.c_str(), F_OK) == 0 && access(src_name.c_str(), F_OK) != 0) {
@@ -583,7 +591,7 @@
++bad;
}
}
- if (make_parents(&srcs[i][0])) {
+ if (!make_parents(srcs[i])) {
printf("%s: failed to symlink %s to %s: making parents failed\n",
name, srcs[i].c_str(), target.c_str());
++bad;