139 lines
3.4 KiB
Go
139 lines
3.4 KiB
Go
/*
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* Copyright (c) 2015 Alex Yatskov <alex@foosoft.net>
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* Author: Alex Yatskov <alex@foosoft.net>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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package main
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import (
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"encoding/json"
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"flag"
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"fmt"
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"io/ioutil"
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"log"
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"os"
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"os/user"
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"path"
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"github.com/naoina/toml"
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"gopkg.in/yaml.v2"
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)
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const (
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flagClobber = 1 << iota
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flagForce
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flagVerbose
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flagNoCmd
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flagNoLink
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flagNoMacro
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)
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func parseCfg(filename string) (*config, error) {
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bytes, err := ioutil.ReadFile(filename)
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if err != nil {
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return nil, err
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}
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conf := &config{}
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switch path.Ext(filename) {
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case ".json":
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if err := json.Unmarshal(bytes, &conf); err != nil {
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return nil, err
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}
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case ".toml", ".tml":
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if err := toml.Unmarshal(bytes, &conf); err != nil {
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return nil, err
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}
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case ".yaml", ".yml":
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if err := yaml.Unmarshal(bytes, &conf); err != nil {
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return nil, err
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}
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default:
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return nil, fmt.Errorf("unsupported configuration file format")
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}
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return conf, nil
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}
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func usage() {
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fmt.Fprintf(os.Stderr, "Usage: %s [options] conf src\n", os.Args[0])
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fmt.Fprintf(os.Stderr, "http://foosoft.net/projects/homemaker/\n\n")
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fmt.Fprintf(os.Stderr, "Parameters:\n")
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flag.PrintDefaults()
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}
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func main() {
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currUsr, err := user.Current()
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if err != nil {
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log.Fatal(err)
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}
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taskName := flag.String("task", "default", "name of task to execute")
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dstDir := flag.String("dest", currUsr.HomeDir, "target directory for tasks")
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force := flag.Bool("force", true, "create parent directories to target")
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clobber := flag.Bool("clobber", false, "delete files and directories at target")
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verbose := flag.Bool("verbose", false, "verbose output")
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nocmd := flag.Bool("nocmd", false, "don't execute commands")
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nolink := flag.Bool("nolink", false, "don't create links")
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flag.Usage = usage
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flag.Parse()
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flags := 0
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if *clobber {
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flags |= flagClobber
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}
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if *force {
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flags |= flagForce
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}
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if *verbose {
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flags |= flagVerbose
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}
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if *nocmd {
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flags |= flagNoCmd
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}
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if *nolink {
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flags |= flagNoLink
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}
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if flag.NArg() == 2 {
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confDirAbs := makeAbsPath(flag.Arg(0))
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srcDirAbs := makeAbsPath(flag.Arg(1))
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dstDirAbs := makeAbsPath(*dstDir)
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os.Setenv("HM_CONFIG", confDirAbs)
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os.Setenv("HM_TASK", *taskName)
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os.Setenv("HM_SRC", srcDirAbs)
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os.Setenv("HM_DEST", dstDirAbs)
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conf, err := parseCfg(confDirAbs)
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if err != nil {
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log.Fatal(err)
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}
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if err := conf.process(srcDirAbs, dstDirAbs, *taskName, flags); err != nil {
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log.Fatal(err)
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}
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} else {
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usage()
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os.Exit(2)
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}
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}
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