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util.go
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util.go
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package main
import (
"log"
"net/http"
"os"
"path/filepath"
"strings"
)
func removeEmptyStrings(s []string) []string {
var r []string
for _, str := range s {
if str != "" {
r = append(r, str)
}
}
return r
}
func getBranch(ref string) string {
return strings.Split(ref, "/")[2]
}
func ensureHomeEnv(homepath string) {
homeenv := os.Getenv("HOME")
if _, err := os.Stat(filepath.Join(homeenv, ".ssh")); err != nil {
// There's no $HOME/.ssh directory to access or the user doesn't have permissions
// to read it, or something else; in any event there's no need to try creating a
// symlink to it.
return
}
if homeenv != "" {
ensureHomeEnvSSHLinkedFromPath(homeenv, homepath)
}
}
func ensureHomeEnvSSHLinkedFromPath(homeenv string, homepath string) {
if filepath.Clean(homeenv) != filepath.Clean(homepath) {
homeEnvSSH := filepath.Join(homeenv, ".ssh")
homePathSSH := filepath.Join(homepath, ".ssh")
if _, err := os.Stat(homePathSSH); os.IsNotExist(err) {
if err := os.Symlink(homeEnvSSH, homePathSSH); err != nil {
// Only do a warning, in case we don't have a real home
// directory writable in our image
log.Printf("Unexpected error: creating symlink: %v\n", err)
}
}
}
}
// Canonical updates the map keys to use the Canonical name
func Canonical(h map[string][]string) http.Header {
c := map[string][]string{}
for k, v := range h {
c[http.CanonicalHeaderKey(k)] = v
}
return http.Header(c)
}