async _restoreAction()

in src/agentmgr.js [431:483]

• 37 lines of code
• 9 McCabe index (conditional complexity)

    async _restoreAction(isStartup) {
        const copy = getActionCopyName(this.actionName);

        try {
            // unfortunately, openwhisk does not support a server-side "move action" API,
            // otherwise the next 3 steps (read, update, delete) could be a single
            // and presumably fast move operation

            let original;
            if (this.actionWithCode) {
                // normal case during shutdown: we have the original action in memory
                original = this.actionWithCode;
            } else {
                // the original was fetched before or was backed up in the copy
                original = await this.wsk.actions.get(copy)
                log.debug("restore: fetched action original from backup copy");
            }

            // copy the backup (copy) to the regular action
            await this.wsk.actions.update({
                name: this.actionName,
                action: original
            });
            log.debug("restore: restored original action");

            if (this.argv.cleanup) {
                if (!isStartup) {
                    log.log("Removing helper actions due to --cleanup...");
                }
                // remove the backup
                await this.wsk.actions.delete(copy);
                log.debug("restore: deleted backup copy");

                // remove any helpers if they exist
                await deleteActionIfExists(this.wsk, `${this.actionName}_wskdebug_invoked`);
                await deleteActionIfExists(this.wsk, `${this.actionName}_wskdebug_completed`);

            } else if (!isStartup) {
                log.log(`Following helper actions are not removed to keep shutdown fast. Remove using --cleanup if desired.`);
                log.log(`- ${log.highlightColor(copy)}`);
                if (!this.concurrency && !this.ngrokAgent) {
                    log.log("- " + log.highlightColor(`${this.actionName}_wskdebug_invoked`));
                    log.log("- " + log.highlightColor(`${this.actionName}_wskdebug_completed`));
                }
                log.log();
            }

            return original;

        } catch (e) {
            log.error("Error while restoring original action:", e);
        }
    }