docker/add-user.sh: Don't crash on updating when there is a single user

When a single dovecot user exists and their password is being updated via docker/add-user.sh, the `grep -v` command intended to remove the user's old password will not match any lines and exit with error code 1, causing the entire script to fail. This patch fixes it by replacing the if-grep logic with a simpler sed invocation. #43 Amended-by: Alberto Bertogli <[email protected]> Minor edits to the commit message.
albertito · Oct 29, 2023 · a0f0930 · a0f0930
1 parent 0ce84a3
commit a0f0930
Showing 1 changed file with 1 addition and 5 deletions.
diff --git a/docker/add-user.sh b/docker/add-user.sh
@@ -34,11 +34,7 @@ ENCPASS=$(doveadm pw -u "${EMAIL}" -p "${PASSWORD}")
 # Edit dovecot users: remove user if it exits.
 mkdir -p /data/dovecot
 touch /data/dovecot/users
-if grep -q "^${EMAIL}:" /data/dovecot/users; then
-	cp /data/dovecot/users /data/dovecot/users.old
-	grep -v "^${EMAIL}:" /data/dovecot/users.old \
-		> /data/dovecot/users
-fi
+sed --in-place=.old "/^${EMAIL}:/d" /data/dovecot/users
 
 # Edit dovecot users: add user.
 echo "${EMAIL}:${ENCPASS}::::" >> /data/dovecot/users