| // Copyright 2016 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 main |
| |
| import ( |
| "flag" |
| "fmt" |
| "os" |
| "path/filepath" |
| "strings" |
| |
| "android/soong/third_party/zip" |
| ) |
| |
| var ( |
| input = flag.String("i", "", "zip file to read from") |
| output = flag.String("o", "", "output file") |
| ) |
| |
| func usage() { |
| fmt.Fprintln(os.Stderr, "usage: zip2zip -i zipfile -o zipfile [filespec]...") |
| flag.PrintDefaults() |
| fmt.Fprintln(os.Stderr, " filespec:") |
| fmt.Fprintln(os.Stderr, " <name>") |
| fmt.Fprintln(os.Stderr, " <in_name>:<out_name>") |
| fmt.Fprintln(os.Stderr, " <glob>:<out_dir>/") |
| fmt.Fprintln(os.Stderr, "") |
| fmt.Fprintln(os.Stderr, "Files will be copied with their existing compression from the input zipfile to") |
| fmt.Fprintln(os.Stderr, "the output zipfile, in the order of filespec arguments") |
| os.Exit(2) |
| } |
| |
| func main() { |
| flag.Parse() |
| |
| if flag.NArg() == 0 || *input == "" || *output == "" { |
| usage() |
| } |
| |
| reader, err := zip.OpenReader(*input) |
| if err != nil { |
| fmt.Fprintln(os.Stderr, err) |
| os.Exit(3) |
| } |
| defer reader.Close() |
| |
| output, err := os.Create(*output) |
| if err != nil { |
| fmt.Fprintln(os.Stderr, err) |
| os.Exit(4) |
| } |
| defer output.Close() |
| |
| writer := zip.NewWriter(output) |
| defer func() { |
| err := writer.Close() |
| if err != nil { |
| fmt.Fprintln(os.Stderr, err) |
| os.Exit(5) |
| } |
| }() |
| |
| for _, arg := range flag.Args() { |
| var input string |
| var output string |
| |
| // Reserve escaping for future implementation, so make sure no |
| // one is using \ and expecting a certain behavior. |
| if strings.Contains(arg, "\\") { |
| fmt.Fprintln(os.Stderr, "\\ characters are not currently supported") |
| os.Exit(6) |
| } |
| |
| args := strings.SplitN(arg, ":", 2) |
| input = args[0] |
| if len(args) == 2 { |
| output = args[1] |
| } |
| |
| if strings.IndexAny(input, "*?[") >= 0 { |
| for _, file := range reader.File { |
| if match, err := filepath.Match(input, file.Name); err != nil { |
| fmt.Fprintln(os.Stderr, err) |
| os.Exit(7) |
| } else if match { |
| var newFileName string |
| if output == "" { |
| newFileName = file.Name |
| } else { |
| _, name := filepath.Split(file.Name) |
| newFileName = filepath.Join(output, name) |
| } |
| err = writer.CopyFrom(file, newFileName) |
| if err != nil { |
| fmt.Fprintln(os.Stderr, err) |
| os.Exit(8) |
| } |
| } |
| } |
| } else { |
| if output == "" { |
| output = input |
| } |
| for _, file := range reader.File { |
| if input == file.Name { |
| err = writer.CopyFrom(file, output) |
| if err != nil { |
| fmt.Fprintln(os.Stderr, err) |
| os.Exit(8) |
| } |
| break |
| } |
| } |
| } |
| } |
| } |