Improve error handling when forking fails

Related ticket: https://progress.opensuse.org/issues/187356

Author: Martchus

_common

@@ -407,6 +407,11 @@ log-warn() (
     colorize "err" "WARNING" "[warn] $*"
 )
 
+log-error() (
+    set +x
+    colorize "err" "ERROR" "[error] $*"
+)
+
 debug_osc() (
     set +x
     log-debug "### osc $*"

os-autoinst-obs-auto-submit

@@ -102,6 +102,12 @@ make_git_submit_request() {
     #       For `git push` to work (done below) you need to deploy an SSH key on the Gitea instance.
     #       Checkout https://opensuse-commander.readthedocs.io/en/latest/git-obs-quickstart.html for details.
     forked_repo=$($git_obs repo fork "pool/$package" 2>&1 > /dev/null | perl -ne 'print for /Fork .*: (.*)/g')
+    if [[ -z $forked_repo ]]; then
+        log-error "Unable to create fork, try to run 'git-obs repo fork pool/$package' manually for debugging"
+        [[ -e $HOME/.config/tea/config.yml ]] || \
+            log-info "Also, be sure you have followed https://opensuse-commander.readthedocs.io/en/latest/git-obs-quickstart.html"
+        return 1
+    fi
 
     # enter a working copy of the fork and switch to the branch the submission should be based on
     $git_obs repo clone --no-ssh-strict-host-key-checking "$forked_repo" || return $?