118 lines
3 KiB
Go
118 lines
3 KiB
Go
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// Find and delete all symlinks to the dotfiles defined in $BRIEFCASE.
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//
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// Oftentimes I corrupt the state of my dotfiles. The intention with this script
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// is to write some tooling to help me better manage my dotfile cleanliness. An
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// example workflow might look like:
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//
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// ```shell
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// > go run delete_dotfile_symlinks.go --audit
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// > go run delete_dotfile_symlinks.go --seriously
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// > cd ..
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// > make install
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// ```
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//
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// Outstanding TODOs:
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// - Package this with <depot>buildGo.nix.
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// - How can this be run as script without `go run`? She-bang at the top?
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// - See TODOs within this package.
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package main
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import (
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"errors"
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"flag"
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"fmt"
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"log"
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"os"
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"path/filepath"
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"strings"
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)
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// Wanted for go tooling:
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// 1. jump-to-def
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// 2. documentation at point
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// 3. autocompletion
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// TODO: Consider adding this to a utils.go package.
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func failOn(err error) {
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if err != nil {
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log.Fatal(err)
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}
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}
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// TODO: Consider adding this to a utils.go package.
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func isSymlink(m os.FileMode) bool {
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return m&os.ModeSymlink != 0
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}
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var hostnames = map[string]string{
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os.Getenv("DESKTOP"): "desktop",
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os.Getenv("LAPTOP"): "work_laptop",
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os.Getenv("CLOUDTOP"): "cloudtop",
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}
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func main() {
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audit := flag.Bool("audit", false, "Output all symlinks that would be deleted. This is the default behavior. This option is mutually exclusive with the --seriously option.")
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seriously := flag.Bool("seriously", false, "Actually delete the symlinks. This option is mutually exclusive with the --audit option.")
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repoName := flag.String("repo-name", "briefcase", "The name of the repository.")
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deviceOnly := flag.Bool("device-only", false, "Only output the device-specific dotfiles.")
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flag.Parse()
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if !*audit && !*seriously {
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log.Fatal(errors.New("Either -audit or -seriously needs to be set."))
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}
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if *audit == *seriously {
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log.Fatal(errors.New("Arguments -audit and -seriously are mutually exclusive"))
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}
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home, err := os.UserHomeDir()
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failOn(err)
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count := 0
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err = filepath.Walk(home, func(path string, info os.FileInfo, err error) error {
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if isSymlink(info.Mode()) {
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dest, err := os.Readlink(path)
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failOn(err)
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var predicate func(string) bool
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if *deviceOnly {
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predicate = func(dest string) bool {
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var hostname string
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hostname, err = os.Hostname()
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failOn(err)
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seeking, ok := hostnames[hostname]
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if !ok {
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log.Fatal(fmt.Sprintf("Hostname \"%s\" not supported in the hostnames map.", hostname))
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}
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return strings.Contains(dest, *repoName) && strings.Contains(dest, seeking)
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}
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} else {
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predicate = func(dest string) bool {
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return strings.Contains(dest, *repoName)
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}
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}
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if predicate(dest) {
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if *audit {
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fmt.Printf("%s -> %s\n", path, dest)
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} else if *seriously {
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fmt.Printf("rm %s\n", path)
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err = os.Remove(path)
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failOn(err)
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}
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count += 1
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}
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}
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return nil
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})
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failOn(err)
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if *audit {
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fmt.Printf("Would have deleted %d symlinks.\n", count)
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} else if *seriously {
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fmt.Printf("Successfully deleted %d symlinks.\n", count)
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}
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os.Exit(0)
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}
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