mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-28 08:16:09 +03:00
80 lines
2.4 KiB
C++
80 lines
2.4 KiB
C++
|
// Copyright (c) 2013 The Chromium Authors. All rights reserved.
|
||
|
|
// Use of this source code is governed by a BSD-style license that can be
|
||
|
|
// found in the LICENSE file.
|
||
|
|
|
||
|
|
#include "base/files/file_util.h"
|
||
|
|
#include "tools/gn/err.h"
|
||
|
|
#include "tools/gn/filesystem_utils.h"
|
||
|
|
#include "tools/gn/functions.h"
|
||
|
|
#include "tools/gn/input_conversion.h"
|
||
|
|
#include "tools/gn/input_file.h"
|
||
|
|
#include "tools/gn/scheduler.h"
|
||
|
|
|
||
|
|
// TODO(brettw) consider removing this. I originally wrote it for making the
|
||
|
|
// WebKit bindings but misundersood what was required, and didn't need to
|
||
|
|
// use this. This seems to have a high potential for misuse.
|
||
|
|
|
||
|
|
namespace functions {
|
||
|
|
|
||
|
|
const char kReadFile[] = "read_file";
|
||
|
|
const char kReadFile_HelpShort[] =
|
||
|
|
"read_file: Read a file into a variable.";
|
||
|
|
const char kReadFile_Help[] =
|
||
|
|
R"(read_file: Read a file into a variable.
|
||
|
|
|
||
|
|
read_file(filename, input_conversion)
|
||
|
|
|
||
|
|
Whitespace will be trimmed from the end of the file. Throws an error if the
|
||
|
|
file can not be opened.
|
||
|
|
|
||
|
|
Arguments
|
||
|
|
|
||
|
|
filename
|
||
|
|
Filename to read, relative to the build file.
|
||
|
|
|
||
|
|
input_conversion
|
||
|
|
Controls how the file is read and parsed. See "gn help input_conversion".
|
||
|
|
|
||
|
|
Example
|
||
|
|
|
||
|
|
lines = read_file("foo.txt", "list lines")
|
||
|
|
)";
|
||
|
|
|
||
|
|
Value RunReadFile(Scope* scope,
|
||
|
|
const FunctionCallNode* function,
|
||
|
|
const std::vector<Value>& args,
|
||
|
|
Err* err) {
|
||
|
|
if (args.size() != 2) {
|
||
|
|
*err = Err(function->function(), "Wrong number of arguments to read_file",
|
||
|
|
"I expected two arguments.");
|
||
|
|
return Value();
|
||
|
|
}
|
||
|
|
if (!args[0].VerifyTypeIs(Value::STRING, err))
|
||
|
|
return Value();
|
||
|
|
|
||
|
|
// Compute the file name.
|
||
|
|
const SourceDir& cur_dir = scope->GetSourceDir();
|
||
|
|
SourceFile source_file = cur_dir.ResolveRelativeFile(args[0], err,
|
||
|
|
scope->settings()->build_settings()->root_path_utf8());
|
||
|
|
if (err->has_error())
|
||
|
|
return Value();
|
||
|
|
base::FilePath file_path =
|
||
|
|
scope->settings()->build_settings()->GetFullPath(source_file);
|
||
|
|
|
||
|
|
// Ensure that everything is recomputed if the read file changes.
|
||
|
|
g_scheduler->AddGenDependency(file_path);
|
||
|
|
|
||
|
|
// Read contents.
|
||
|
|
std::string file_contents;
|
||
|
|
if (!base::ReadFileToString(file_path, &file_contents)) {
|
||
|
|
*err = Err(args[0], "Could not read file.",
|
||
|
|
"I resolved this to \"" + FilePathToUTF8(file_path) + "\".");
|
||
|
|
return Value();
|
||
|
|
}
|
||
|
|
|
||
|
|
return ConvertInputToValue(scope->settings(), file_contents, function,
|
||
|
|
args[1], err);
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace functions
|