90 lines
1.6 KiB
Go
90 lines
1.6 KiB
Go
package apply
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import (
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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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"path/filepath"
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"strings"
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"novit.nc/direktil/inits/pkg/vars"
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"novit.nc/direktil/pkg/config"
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)
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const (
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authorizedKeysPath = "/root/.ssh/authorized_keys"
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)
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// Files writes the files from the given config
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func Files(cfg *config.Config, filters ...string) (err error) {
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accept := func(n string) bool { return true }
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if len(filters) > 0 {
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accept = func(n string) bool {
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for _, filter := range filters {
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if matched, err := filepath.Match(filter, n); err != nil {
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log.Printf("ERROR: bad filter ignored: %q: %v", filter, err)
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} else if matched {
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return true
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}
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}
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return false
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}
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}
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if cfg.RootUser.AuthorizedKeys != nil && accept(authorizedKeysPath) {
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err = writeFile(
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authorizedKeysPath,
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[]byte(strings.Join(cfg.RootUser.AuthorizedKeys, "\n")),
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0600, 0700, cfg,
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)
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if err != nil {
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return
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}
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}
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for _, file := range cfg.Files {
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if !accept(file.Path) {
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continue
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}
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mode := file.Mode
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if mode == 0 {
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mode = 0644
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}
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content := []byte(file.Content)
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err = writeFile(
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file.Path,
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content,
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mode,
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0755,
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cfg,
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)
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if err != nil {
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return
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}
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}
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return
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}
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func writeFile(path string, content []byte, fileMode, dirMode os.FileMode, cfg *config.Config) (err error) {
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if err = os.MkdirAll(filepath.Dir(path), dirMode); err != nil {
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return
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}
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content = vars.Substitute(content, cfg)
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log.Printf("writing %q, mode %04o, %d bytes", path, fileMode, len(content))
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if err = ioutil.WriteFile(path, content, fileMode); err != nil {
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err = fmt.Errorf("failed to write %s: %v", path, err)
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}
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return
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}
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