CLI mara_cron.schedule-job (#3)

* typo

* add cli command schedule-job

* improve cli error messages

README.md

@@ -69,6 +69,7 @@ This package contains the following cli commands:
 | -------------- | --------------
 | `mara_cron.enable --job-id "my_job_id" [--module "module_name"]` | Enables a specific job regardless of the configuration.
 | `mara_cron.disable --job-id "my_job_id" [--module "module_name"]` | Disables a specific job.
+| `mara_cron.schedule-job --job-id "my_job_id"` | Schedules a job to run in less than 1 minute.
 | `mara_cron.list-crontab` | Lists the current cron tab settings
 | `mara_cron.list-crontab --with-changes` | Lists the current cron tab including the changes not yet written
 | `mara_cron.write-crontab` | Writes all not published changes to the crontab

mara_cron/cli.py

@@ -2,7 +2,7 @@
 import click
 from mara_cron import config
 
-from . import crontab
+from . import crontab, job
 
 
 @click.command()
@@ -17,7 +17,7 @@ def disable(job_id: str, module_name: str):
     job = crontab.get_job(cron, job_id=job_id, module_name=module_name)
 
     if not job:
-        print('Could not find cronjob')
+        print(f'Could not find cronjob "{job_id}"', file=sys.stderr)
         sys.exit(1)
 
     job.enable(False)
@@ -40,7 +40,7 @@ def enable(job_id: str, module_name: str):
     job = crontab.get_job(cron, job_id=job_id, module_name=module_name)
 
     if not job:
-        print('Could not find cronjob')
+        print(f'Could not find cronjob "{job_id}"', file=sys.stderr)
         sys.exit(1)
 
     job.enable(True)
@@ -49,6 +49,22 @@ def enable(job_id: str, module_name: str):
     sys.exit(0)
 
 
+@click.command()
+@click.option('--job-id', required=True,
+              help='The id of of the cron job.')
+def schedule_job(job_id: str):
+    """ Schedules a job to run. """
+    cronjob = job.find_job(job_id)
+    if not cronjob:
+        print(f'Could not find job with id "{job_id}"', file=sys.stderr)
+        sys.exit(1)
+
+    crontab.append_single_execution_job(cronjob)
+
+    print(f'Job {job_id} is scheduled to run in less than 1 minute')
+    sys.exit(0)
+
+
 @click.command()
 @click.option('--with-changes', default=False, is_flag=True,
               help='Lists the current crontab including the not written changes.')