Import of the watch repository from Pebble

tools/clar/clar_fs.c

@@ -0,0 +1,194 @@
+/*
+ * Copyright 2024 Google LLC
+ *
+ * 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.
+ */
+
+#ifdef _WIN32
+
+#define FOF_FLAGS (FOF_SILENT | FOF_NOCONFIRMATION | FOF_NOERRORUI | FOF_NOCONFIRMMKDIR)
+
+static char *
+fileops_path(const char *_path)
+{
+	char *path = NULL;
+	size_t length, i;
+
+	if (_path == NULL)
+		return NULL;
+
+	length = strlen(_path);
+	path = malloc(length + 2);
+
+	if (path == NULL)
+		return NULL;
+
+	memcpy(path, _path, length);
+	path[length] = 0;
+	path[length + 1] = 0;
+
+	for (i = 0; i < length; ++i) {
+		if (path[i] == '/')
+			path[i] = '\\';
+	}
+
+	return path;
+}
+
+static void
+fileops(int mode, const char *_source, const char *_dest)
+{
+	SHFILEOPSTRUCT fops;
+
+	char *source = fileops_path(_source);
+	char *dest = fileops_path(_dest);
+
+	ZeroMemory(&fops, sizeof(SHFILEOPSTRUCT));
+
+	fops.wFunc = mode;
+	fops.pFrom = source;
+	fops.pTo = dest;
+	fops.fFlags = FOF_FLAGS;
+
+	cl_assert_(
+		SHFileOperation(&fops) == 0,
+		"Windows SHFileOperation failed"
+	);
+
+	free(source);
+	free(dest);
+}
+
+static void
+fs_rm(const char *_source)
+{
+	fileops(FO_DELETE, _source, NULL);
+}
+
+static void
+fs_copy(const char *_source, const char *_dest)
+{
+	fileops(FO_COPY, _source, _dest);
+}
+
+void
+cl_fs_cleanup(void)
+{
+	fs_rm(fixture_path(_clar_path, "*"));
+}
+
+#else
+
+#ifdef EMSCRIPTEN
+#include <emscripten/emscripten.h>
+// fork() is not supported by Emscripten, so try to use Node's child_process.execSync
+static int
+shell_out(char * const argv[])
+{
+  return EM_ASM_INT({
+    var child_process = require('child_process');
+    try {
+      var args = [];
+      for (var i = 0;; i++) {
+        var argStrPtr = getValue($0 + i*4, '*');
+        if (argStrPtr === 0) {
+          break;
+        }
+        var arg = Pointer_stringify(argStrPtr);
+        args.push(arg);
+      }
+      // FIXME: need to escape args?
+      var out = child_process.execSync(args.join(' '));
+      return 0;
+    } catch (e) {
+      console.error(e);
+      return -1;
+    }
+  }, argv);
+}
+#else  // #ifdef EMSCRIPTEN
+static int
+shell_out(char * const argv[])
+{
+	int status;
+	pid_t pid;
+
+	pid = fork();
+
+	if (pid < 0) {
+		fprintf(stderr,
+			"System error: `fork()` call failed.\n");
+		exit(-1);
+	}
+
+	if (pid == 0) {
+		execv(argv[0], argv);
+	}
+
+	waitpid(pid, &status, 0);
+	return WEXITSTATUS(status);
+}
+#endif
+
+#include <string.h>
+
+static void
+fs_copy(const char *_source, const char *dest)
+{
+	char *argv[5];
+	char *source;
+	size_t source_len;
+
+	source = strdup(_source);
+	source_len = strlen(source);
+
+	if (source[source_len - 1] == '/')
+		source[source_len - 1] = 0;
+
+	argv[0] = "/bin/cp";
+	argv[1] = "-R";
+	argv[2] = source;
+	argv[3] = (char *)dest;
+	argv[4] = NULL;
+
+	cl_must_pass_(
+		shell_out(argv),
+		"Failed to copy test fixtures to sandbox"
+	);
+
+	free(source);
+}
+
+static void
+fs_rm(const char *source)
+{
+	char *argv[4];
+
+	argv[0] = "/bin/rm";
+	argv[1] = "-Rf";
+	argv[2] = (char *)source;
+	argv[3] = NULL;
+
+	cl_must_pass_(
+		shell_out(argv),
+		"Failed to cleanup the sandbox"
+	);
+}
+
+void
+cl_fs_cleanup(void)
+{
+	clar_unsandbox();
+	clar_sandbox();
+}
+#endif