homemaker/homemaker.go
2016-02-14 13:16:03 -08:00

111 lines
3.1 KiB
Go

/*
* Copyright (c) 2015 Alex Yatskov <alex@foosoft.net>
* Author: Alex Yatskov <alex@foosoft.net>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package main
import (
"flag"
"fmt"
"log"
"os"
"path"
)
const (
flagClobber = 1 << iota
flagForce
flagVerbose
flagNoCmds
flagNoLinks
flagNoMacro
flagUnlink = flagNoCmds | (1 << iota)
)
func usage() {
fmt.Fprintf(os.Stderr, "Usage: %s [options] conf src\n", path.Base(os.Args[0]))
fmt.Fprintf(os.Stderr, "https://foosoft.net/projects/homemaker/\n\n")
fmt.Fprintf(os.Stderr, "Parameters:\n")
flag.PrintDefaults()
}
func main() {
taskName := flag.String("task", "default", "name of task to execute")
dstDir := flag.String("dest", os.Getenv("HOME"), "target directory for tasks")
force := flag.Bool("force", true, "create parent directories to target")
clobber := flag.Bool("clobber", false, "delete files and directories at target")
verbose := flag.Bool("verbose", false, "verbose output")
nocmds := flag.Bool("nocmds", false, "don't execute commands")
nolinks := flag.Bool("nolinks", false, "don't create links")
variant := flag.String("variant", "", "execution variant for tasks and macros")
unlink := flag.Bool("unlink", false, "remove existing links instead of creating them")
flag.Usage = usage
flag.Parse()
flags := 0
if *clobber {
flags |= flagClobber
}
if *force {
flags |= flagForce
}
if *verbose {
flags |= flagVerbose
}
if *nocmds {
flags |= flagNoCmds
}
if *nolinks {
flags |= flagNoLinks
}
if *unlink {
flags |= flagUnlink
}
if flag.NArg() == 2 {
confFile := makeAbsPath(flag.Arg(0))
conf, err := newConfig(confFile)
if err != nil {
log.Fatal(err)
}
conf.srcDir = makeAbsPath(flag.Arg(1))
conf.dstDir = makeAbsPath(*dstDir)
conf.variant = *variant
conf.flags = flags
os.Setenv("HM_CONFIG", confFile)
os.Setenv("HM_TASK", *taskName)
os.Setenv("HM_SRC", conf.srcDir)
os.Setenv("HM_DEST", conf.dstDir)
os.Setenv("HM_VARIANT", conf.variant)
if err := processTask(*taskName, conf); err != nil {
log.Fatal(err)
}
} else {
usage()
os.Exit(2)
}
}