platform_build_blueprint/deptools/depfile.go
Christian Zander c4d07d8fb5 Make WriteDepFile escape spaces and special characters
This commit makes deptools.WriteDepFile() escape spaces and the
following set of special characters in the dependencies it
writes to files used as Ninja depfiles: \, #, *, [, |.  Without this
change, dependencies with paths including any of the above may not
function as intended.

Change-Id: I3560a34de930932422200985fb479515a21d9508
2015-04-14 23:34:24 -04:00

55 lines
1.3 KiB
Go

// Copyright 2014 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.
package deptools
import (
"fmt"
"os"
"strings"
)
var (
pathEscaper = strings.NewReplacer(
`\`, `\\`,
` `, `\ `,
`#`, `\#`,
`*`, `\*`,
`[`, `\[`,
`|`, `\|`)
)
// WriteDepFile creates a new gcc-style depfile and populates it with content
// indicating that target depends on deps.
func WriteDepFile(filename, target string, deps []string) error {
f, err := os.Create(filename)
if err != nil {
return err
}
defer f.Close()
var escapedDeps []string
for _, dep := range deps {
escapedDeps = append(escapedDeps, pathEscaper.Replace(dep))
}
_, err = fmt.Fprintf(f, "%s: \\\n %s\n", target,
strings.Join(escapedDeps, " \\\n "))
if err != nil {
return err
}
return nil
}