fix: skip account setting upon user request

.github/workflows/post_to_mastodon.sh

@@ -1,8 +1,8 @@
 #!/bin/bash
 
 # Extract version from PR tag passed as environment variable
-if [ -z "${PR_TITLE}" ]; then
-    echo "Error: 'PR_TITLE' environment variable is not set."
+if [ -z "${PR_TITLE}" ]; then # apparently unset, workflow broken?
+    >&2 echo "Error: 'PR_TITLE' environment variable is not set."
     exit 1
 fi
 

docs/further.md

@@ -18,6 +18,9 @@ To specify them at the command line, define them as default resources:
 $ snakemake --executor slurm --default-resources slurm_account=<your SLURM account> slurm_partition=<your SLURM partition>
 ```
 
+The plugin does its best to _guess_ your account. That might not be possible. Particularly, when dealing with several SLURM accounts, users ought to set them per workflow.
+Some clusters, however, have a pre-defined default per user and _do not_ allow users to set their account. The plugin will attept to always set an account. To override this behauvior, the `--slurm-no-account` flag can be used.
+
 If individual rules require e.g. a different partition, you can override
 the default per rule:
 

snakemake_executor_plugin_slurm/__init__.py

@@ -85,6 +85,15 @@ class ExecutorSettings(ExecutorSettingsBase):
             "required": False,
         },
     )
+    no_account: bool = field(
+        default=False,
+        metadata={
+            "help": "Do not use any account for submission. "
+            "This flag has no effect, if not set.",
+            "env_var": False,
+            "required": False,
+        },
+    )
 
 
 # Required:
@@ -213,7 +222,9 @@ def run_job(self, job: JobExecutorInterface):
             f"--comment '{comment_str}'"
         )
 
-        call += self.get_account_arg(job)
+        if not self.workflow.executor_settings.no_account:
+            call += self.get_account_arg(job)
+
         call += self.get_partition_arg(job)
 
         if self.workflow.executor_settings.requeue: