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git-sync
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Retain user-provided GIT_SSH_COMMAND

This commit is contained in:
Tim Hockin 2022-08-20 15:22:34 -07:00
parent 12a1d1e298
commit e047848966
1 changed files with 15 additions and 10 deletions
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25
cmd/git-sync/main.go
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@ -1417,23 +1417,28 @@ func (git *repoSync) StoreCredentials(ctx context.Context, username, password st
func (git *repoSync) SetupGitSSH(setupKnownHosts bool, pathToSSHSecret, pathToSSHKnownHosts string) error { func (git *repoSync) SetupGitSSH(setupKnownHosts bool, pathToSSHSecret, pathToSSHKnownHosts string) error {
git.log.V(1).Info("setting up git SSH credentials") git.log.V(1).Info("setting up git SSH credentials")
_, err := os.Stat(pathToSSHSecret) // If the user sets GIT_SSH_COMMAND we try to respect it.
if err != nil { sshCmd := os.Getenv("GIT_SSH_COMMAND")
return fmt.Errorf("can't access SSH key: %w", err) if sshCmd == "" {
sshCmd = "ssh"
} }
if _, err := os.Stat(pathToSSHSecret); err != nil {
return fmt.Errorf("can't access SSH key file %s: %w", pathToSSHSecret, err)
}
sshCmd += fmt.Sprintf(" -i %s", pathToSSHSecret)
if setupKnownHosts { if setupKnownHosts {
_, err = os.Stat(pathToSSHKnownHosts) if _, err := os.Stat(pathToSSHKnownHosts); err != nil {
if err != nil { return fmt.Errorf("can't access SSH known_hosts file %s: %w", pathToSSHKnownHosts, err)
return fmt.Errorf("can't access SSH known_hosts: %w", err)
} }
err = os.Setenv("GIT_SSH_COMMAND", fmt.Sprintf("ssh -o UserKnownHostsFile=%s -i %s", pathToSSHKnownHosts, pathToSSHSecret)) sshCmd += fmt.Sprintf(" -o StrictHostKeyChecking=yes -o UserKnownHostsFile=%s", pathToSSHKnownHosts)
} else { } else {
err = os.Setenv("GIT_SSH_COMMAND", fmt.Sprintf("ssh -o StrictHostKeyChecking=no -i %s", pathToSSHSecret)) sshCmd += fmt.Sprintf(" -o StrictHostKeyChecking=no")
} }
// set env variable GIT_SSH_COMMAND to force git use customized ssh command git.log.V(9).Info("setting GIT_SSH_COMMAND", "value", sshCmd)
if err != nil { if err := os.Setenv("GIT_SSH_COMMAND", sshCmd); err != nil {
return fmt.Errorf("can't set $GIT_SSH_COMMAND: %w", err) return fmt.Errorf("can't set $GIT_SSH_COMMAND: %w", err)
} }