1// Copyright 2020 Google Inc. All rights reserved.
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15package main
16
17import (
18	"android/soong/android"
19	"android/soong/bp2build"
20	"io/ioutil"
21	"os"
22	"path/filepath"
23)
24
25func createBazelQueryView(ctx *bp2build.CodegenContext, bazelQueryViewDir string) error {
26	ruleShims := bp2build.CreateRuleShims(android.ModuleTypeFactories())
27
28	// Ignore metrics reporting for queryview, since queryview is already a full-repo
29	// conversion and can use data from bazel query directly.
30	buildToTargets, _ := bp2build.GenerateBazelTargets(ctx, true)
31
32	filesToWrite := bp2build.CreateBazelFiles(ruleShims, buildToTargets, bp2build.QueryView)
33	for _, f := range filesToWrite {
34		if err := writeReadOnlyFile(bazelQueryViewDir, f); err != nil {
35			return err
36		}
37	}
38
39	return nil
40}
41
42// The auto-conversion directory should be read-only, sufficient for bazel query. The files
43// are not intended to be edited by end users.
44func writeReadOnlyFile(dir string, f bp2build.BazelFile) error {
45	dir = filepath.Join(dir, f.Dir)
46	if err := createDirectoryIfNonexistent(dir); err != nil {
47		return err
48	}
49	pathToFile := filepath.Join(dir, f.Basename)
50
51	// 0444 is read-only
52	err := ioutil.WriteFile(pathToFile, []byte(f.Contents), 0444)
53
54	return err
55}
56
57func createDirectoryIfNonexistent(dir string) error {
58	if _, err := os.Stat(dir); os.IsNotExist(err) {
59		return os.MkdirAll(dir, os.ModePerm)
60	} else {
61		return err
62	}
63}
64