add gitlab migration script

README.md

@@ -1,6 +1,5 @@
-<img align="left" src="logo-gitberlin-header.png" height="100">
-## git.berlin
-
+<img src="src/branch/master/logo-gitberlin-header.png" height="100">
+# git.berlin
 > Gitea installation [git.berlin](https://git.berlin) | git:git.berlin
 
 ---

migrate-gitlab-gitea.sh

@@ -0,0 +1,64 @@
+#!/bin/sh
+
+# https://gist.github.com/gregdel/870d58c80b80172445dc93294531d88c
+#
+# brew install jq
+#
+set -e
+
+_usage() {
+	echo "Usage: $0 [--user|org] USER_OR_ORG_NAME GITEA_REPO_NAME GITLAB_HTTPS_URL"
+	exit 0
+}
+
+MODE=$1
+GITEA_USERNAME=$2
+GITEA_REPO_NAME=$3
+GITLAB_CLONE_URL=$4
+
+case $MODE in
+	--user|--org);;
+	*) _usage    ;;
+esac
+[ -z "$GITLAB_CLONE_URL" ] && _usage
+[ -z "$GITEA_REPO_NAME" ] && _usage
+[ -z "$GITEA_USERNAME" ] && _usage
+
+echo "Migrating $GITLAB_CLONE_URL to $GITEA_USERNAME/$GITEA_REPO_NAME"
+
+GITEA_URL=${GITEA_URL:-"http://GITEA_URL"}
+GITEA_TOKEN=${GITEA_TOKEN:-"YOUR_GITEA_TOKEN"}
+
+GITLAB_USERNAME=${GITLAB_USERNAME:-"m"}
+GITLAB_TOKEN=${GITLAB_TOKEN:-"YOUR_GITLAB_TOKEN"}
+
+_api_call() {
+	# shellcheck disable=SC2086
+	curl -s -L -H "Authorization: token $GITEA_TOKEN" \
+		-H "Accept: application/json" \
+		-H "Content-Type:application/json" \
+		"$GITEA_URL/api/v1/"$*
+}
+
+GITEA_UID=
+[ "$MODE" = "--user" ] && GITEA_UID=$(_api_call "users/$GITEA_USERNAME" | jq .id)
+[ "$MODE" = "--org" ] && GITEA_UID=$(_api_call "orgs/$GITEA_USERNAME" | jq .id)
+
+echo "$GITEA_USERNAME has the user id $GITEA_UID"
+
+migration_data=$(jq -n -c \
+	--arg name "$GITEA_REPO_NAME" \
+	--arg uid "$GITEA_UID" \
+	--arg clone_url "$GITLAB_CLONE_URL" \
+	--arg auth_username "$GITLAB_USERNAME" \
+	--arg auth_password "$GITLAB_TOKEN" \
+	'{
+		repo_name: $name,
+		clone_addr: $clone_url,
+		auth_username: $auth_username,
+		auth_password: $auth_password,
+		uid: $uid | tonumber,
+		private: true,
+	}'
+)
+_api_call repos/migrate --data "$migration_data" | jq .