[feature] add script to test import / export cycle of a gotosocial instance (#2693)

* add script to test import / export cycle of a gotosocial instance

* use suffix for setting mktemp file suffix

test/import-export.sh

@@ -0,0 +1,85 @@
+#!/bin/bash
+
+set -ex
+
+HOST='localhost:8080'
+ADDR='127.0.0.1'
+PORT='8080'
+DB=$(mktemp)
+STORAGE=$(mktemp -d)
+EXPORT="$(mktemp --suffix '.json')"
+
+_kill() {
+    pid=$(pidof gotosocial) \
+    || return # i.e. not running
+    kill -$1 $pid
+}
+
+gotosocial() {
+    env \
+    GTS_HOST=$HOST \
+    GTS_PROTOCOL='http' \
+    GTS_BIND_ADDRESS=$ADDR \
+    GTS_PORT=$PORT \
+    GTS_DB_TYPE='sqlite' \
+    GTS_DB_ADDRESS=$DB \
+    GTS_STORAGE_BACKEND='local' \
+    GTS_STORAGE_LOCAL_BASE_PATH=$STORAGE \
+    GTS_WEB_ASSET_BASE_DIR='./web/assets' \
+    GTS_WEB_TEMPLATE_BASE_DIR='./web/template' \
+    go run ./cmd/gotosocial ${@}
+}
+
+# Cleanup instance, database file, export file, storage on exit
+trap "_kill 9; rm -f $DB; rm -f $EXPORT; rm -rf $STORAGE" exit
+
+# Iterate list of usernames
+for username in scoobert \
+                shaggy \
+                daphne \
+                velma \
+                fred \
+                scrappy; do # hahaha
+
+    # Create account for each username
+    gotosocial admin account create \
+        --username ${username} \
+        --password 'sh1t_tiEr_Password Zomg123!' \
+        --email ${username}@example.com
+
+    # Confirm each of the accounts
+    gotosocial admin account confirm \
+        --username ${username}
+done
+
+# Ensure server runs once
+gotosocial server start &
+
+# Kill server
+sleep 5
+_kill 15
+sleep 5
+
+# Export current gts database to file
+gotosocial admin export --path "$EXPORT" \
+    || echo 'failed exporting to file'
+
+# Clear database
+rm -f $DB
+touch $DB
+
+# Import current gts database from file
+gotosocial admin import --path "$EXPORT" \
+    || echo 'failed importing from file'
+
+# Ensure server can restart
+{ gotosocial server start \
+    || echo 'post-import failure'
+} &
+
+# Kill server
+sleep 5
+_kill 15
+sleep 5
+
+exit 0