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fix: display group jobs on dryrun#3435

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tadasbar merged 5 commits into
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fix/display-group-jobs-on-dryrun
Jun 1, 2025
Merged

fix: display group jobs on dryrun#3435
tadasbar merged 5 commits into
mainfrom
fix/display-group-jobs-on-dryrun

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@johanneskoester

@johanneskoester johanneskoester commented Mar 14, 2025

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Description

Closes #3422

QC

  • The PR contains a test case for the changes or the changes are already covered by an existing test case.
  • The documentation (docs/) is updated to reflect the changes or this is not necessary (e.g. if the change does neither modify the language nor the behavior or functionalities of Snakemake).

Summary by CodeRabbit

Summary by CodeRabbit

  • New Features

    • Introduced a new property to evaluate non-local execution and dry run scenarios.
  • Bug Fixes

    • Refined task grouping behavior to ensure accurate assignment based on the updated execution context.

These updates aim to provide more consistent and predictable workflow behavior across varied execution modes.

@coderabbitai

coderabbitai Bot commented Mar 14, 2025

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📝 Walkthrough

Walkthrough

This PR updates the execution context check within the group property of the Rule class by replacing the condition that previously relied on workflow.local_exec with one that uses the new non_local_exec_or_dryrun property. In addition, it adds the non_local_exec_or_dryrun property to the Workflow class, which returns True if local execution is off or the workflow is in dry run mode. The logic for fetching any overwrite group remains unchanged.

Changes

File(s) Change Summary
src/.../rules.py Modified the group property in the Rule class to use workflow.non_local_exec_or_dryrun for its conditional logic when deciding to return None.
src/.../workflow.py Added a new property non_local_exec_or_dryrun to the Workflow class which returns True if local_exec is False or if dryrun is True.

Sequence Diagram(s)

sequenceDiagram
    participant Caller
    participant Rule
    participant Workflow
    participant Settings as GroupSettings

    Caller->>Rule: Access group property
    Rule->>Workflow: Evaluate non_local_exec_or_dryrun
    Workflow-->>Rule: Boolean result
    alt Execution context is local and not dry run
        Rule-->>Caller: Return None
    else Execution context is non-local or dry run
        Rule->>Workflow: Retrieve overwrite_group setting
        Workflow->>Settings: Check for overwrite group
        Settings-->>Workflow: Return overwrite value (if exists)
        alt Overwrite group exists
            Workflow-->>Rule: Return overwrite group
        else No overwrite group found
            Rule-->>Caller: Return internal _group
        end
    end
Loading

Assessment against linked issues

Objective Addressed Explanation
Consistent dryrun output for group jobs (#3422)

Assessment against linked issues: Out-of-scope changes

No out-of-scope changes detected.

Suggested reviewers

  • johanneskoester
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@johanneskoester johanneskoester changed the title Fix/display-group-jobs-on-dryrun fix: display group jobs on dryrun Mar 14, 2025
@tadasbar

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It appears that if we

  • supply the -j flag,
  • don't have -c supplied and
  • have job groups defined

dryrun fails with the following message:

WorkflowError:
Job needs threads=4 but only threads=1 are available. This is likely because two jobs are connected via a pipe or a service output and have to run simultaneously. Consider providing more resources (e.g. via --cores).

(adding the -c1 option fixes the error, contrary to what the error message states)

In all other cases it works, and is an improvement on the previous dryrun output.

@tadasbar tadasbar self-requested a review March 14, 2025 14:00

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Actionable comments posted: 0

🧹 Nitpick comments (2)
src/snakemake/workflow.py (1)

423-426: LGTM! Clean implementation that serves the intended purpose.

The new property correctly combines the logic for non-local execution and dry run mode, which aligns with the PR objective to fix group job display during dry runs. The implementation is consistent with other similar properties in the class.

Optional improvement: Consider adding a docstring for clarity.

While not strictly necessary given the descriptive name, adding a brief docstring could help future maintainers understand the specific use case:

 @property
 def non_local_exec_or_dryrun(self):
+    """Return True if execution is non-local or in dry run mode."""
     return not self.local_exec or self.dryrun
🧰 Tools
🪛 Pylint (3.3.7)

[convention] 424-424: Missing function or method docstring

(C0116)

src/snakemake/rules.py (1)

160-168: Refactor: Remove unnecessary else clause.

The else clause is unnecessary since the if block contains a return statement. The code can be simplified by removing the else and de-indenting the subsequent code.

 @property
 def group(self):
     if not self.workflow.non_local_exec_or_dryrun:
         return None
-    else:
-        overwrite_group = self.workflow.group_settings.overwrite_groups.get(
-            self.name
-        )
-        if overwrite_group is not None:
-            return overwrite_group
-        return self._group
+    overwrite_group = self.workflow.group_settings.overwrite_groups.get(
+        self.name
+    )
+    if overwrite_group is not None:
+        return overwrite_group
+    return self._group
🧰 Tools
🪛 Pylint (3.3.7)

[refactor] 160-168: Unnecessary "else" after "return", remove the "else" and de-indent the code inside it

(R1705)

📜 Review details

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Plan: Pro

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Reviewing files that changed from the base of the PR and between 984280a and c505dba.

📒 Files selected for processing (2)
  • src/snakemake/rules.py (1 hunks)
  • src/snakemake/workflow.py (1 hunks)
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  • src/snakemake/rules.py
  • src/snakemake/workflow.py
🧬 Code Graph Analysis (1)
src/snakemake/rules.py (1)
src/snakemake/workflow.py (1)
  • non_local_exec_or_dryrun (424-425)
🪛 Pylint (3.3.7)
src/snakemake/rules.py

[refactor] 160-168: Unnecessary "else" after "return", remove the "else" and de-indent the code inside it

(R1705)

src/snakemake/workflow.py

[convention] 424-424: Missing function or method docstring

(C0116)

⏰ Context from checks skipped due to timeout of 90000ms (9)
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  • GitHub Check: tests (6, ubuntu-latest, py311)
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  • GitHub Check: tests (5, ubuntu-latest, py311)
  • GitHub Check: tests (2, ubuntu-latest, py312)
  • GitHub Check: tests (2, ubuntu-latest, py311)
🔇 Additional comments (1)
src/snakemake/rules.py (1)

160-160: LGTM! Logic correctly enables group jobs during dry runs.

The change from not self.workflow.local_exec to not self.workflow.non_local_exec_or_dryrun correctly implements the intended functionality. Groups are now enabled during dry runs (dryrun=True) while preserving the original behavior for non-local execution scenarios.

🧰 Tools
🪛 Pylint (3.3.7)

[refactor] 160-168: Unnecessary "else" after "return", remove the "else" and de-indent the code inside it

(R1705)

@tadasbar

tadasbar commented Jun 1, 2025

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It appears that if we

* supply the `-j` flag,

* don't have `-c` supplied and

* have job groups defined

dryrun fails with the following message:

WorkflowError:
Job needs threads=4 but only threads=1 are available. This is likely because two jobs are connected via a pipe or a service output and have to run simultaneously. Consider providing more resources (e.g. via --cores).

(adding the -c1 option fixes the error, contrary to what the error message states)

In all other cases it works, and is an improvement on the previous dryrun output.

I misunderstood the error message. Supplying the -c option fixes the error, as is recommended in the error message.

@tadasbar tadasbar merged commit 3bebef4 into main Jun 1, 2025
48 checks passed
@tadasbar tadasbar deleted the fix/display-group-jobs-on-dryrun branch June 1, 2025 18:03
@github-project-automation github-project-automation Bot moved this from In review to Done in Snakemake Hackathon March 2025 Jun 1, 2025
johanneskoester pushed a commit that referenced this pull request Jun 16, 2025
🤖 I have created a release *beep* *boop*
---


##
[9.6.0](v9.5.1...v9.6.0)
(2025-06-16)


### Features

* Prefer papermill to nbconvert
([#2857](#2857))
([4263b03](4263b03))


### Bug Fixes

* DeprecationWarning when using snakemake.utils.validate
([#3420](#3420))
([cf72427](cf72427))
* display group jobs on dryrun
([#3435](#3435))
([3bebef4](3bebef4))
* expandvars for special profile keys
([#3597](#3597))
([4020188](4020188))
* fix bug causing --precommand to not being executed before each remote
job ([#3625](#3625))
([e59d125](e59d125))
* improved toggle switch behavior in reports
([#3623](#3623))
([0c4bd23](0c4bd23))
* pass envvars defined via the envvars directive to remote jobs
([#3626](#3626))
([d4890b4](d4890b4))
* remove wms arg, update logging cli docs
([#3622](#3622))
([3a9a5ac](3a9a5ac))
* typo in CondaEnvDirSpec.__eq__ (issue
[#3192](#3192))
([#3613](#3613))
([f4c107f](f4c107f))
* Unclear handling of params overriding with inheritance
([#3624](#3624))
([077ac4a](077ac4a))


### Documentation

* Added snakemake command to execute the rule plot_with_python
([#3608](#3608))
([bd99c11](bd99c11))
* Updated Reporting Section of The Tutorial(Interaction, Visualization,
and Reporting with Snakemake)
([#3606](#3606))
([91e90ba](91e90ba))
* Updated Requirement Section of The Tutorial With Warning of Not
Installing The Tools Manually
([#3607](#3607))
([3bd114b](3bd114b))
* Updated Wrapper Version in Tutorial and Used Simple Rule For
Consistency & Ease
([#3605](#3605))
([b3bcc21](b3bcc21))

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).
kjohnsen pushed a commit to kjohnsen/snakemake that referenced this pull request Dec 15, 2025
### Description

<!--Add a description of your PR here-->

Closes snakemake#3422 

### QC
<!-- Make sure that you can tick the boxes below. -->

* [x] The PR contains a test case for the changes or the changes are
already covered by an existing test case.
* [x] The documentation (`docs/`) is updated to reflect the changes or
this is not necessary (e.g. if the change does neither modify the
language nor the behavior or functionalities of Snakemake).


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

## Summary by CodeRabbit

- **New Features**
- Introduced a new property to evaluate non-local execution and dry run
scenarios.
  
- **Bug Fixes**
- Refined task grouping behavior to ensure accurate assignment based on
the updated execution context.

These updates aim to provide more consistent and predictable workflow
behavior across varied execution modes.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Co-authored-by: Tadas Bareikis <tadasbar@gmail.com>
kjohnsen pushed a commit to kjohnsen/snakemake that referenced this pull request Dec 15, 2025
🤖 I have created a release *beep* *boop*
---


##
[9.6.0](snakemake/snakemake@v9.5.1...v9.6.0)
(2025-06-16)


### Features

* Prefer papermill to nbconvert
([snakemake#2857](snakemake#2857))
([4263b03](snakemake@4263b03))


### Bug Fixes

* DeprecationWarning when using snakemake.utils.validate
([snakemake#3420](snakemake#3420))
([cf72427](snakemake@cf72427))
* display group jobs on dryrun
([snakemake#3435](snakemake#3435))
([3bebef4](snakemake@3bebef4))
* expandvars for special profile keys
([snakemake#3597](snakemake#3597))
([4020188](snakemake@4020188))
* fix bug causing --precommand to not being executed before each remote
job ([snakemake#3625](snakemake#3625))
([e59d125](snakemake@e59d125))
* improved toggle switch behavior in reports
([snakemake#3623](snakemake#3623))
([0c4bd23](snakemake@0c4bd23))
* pass envvars defined via the envvars directive to remote jobs
([snakemake#3626](snakemake#3626))
([d4890b4](snakemake@d4890b4))
* remove wms arg, update logging cli docs
([snakemake#3622](snakemake#3622))
([3a9a5ac](snakemake@3a9a5ac))
* typo in CondaEnvDirSpec.__eq__ (issue
[snakemake#3192](snakemake#3192))
([snakemake#3613](snakemake#3613))
([f4c107f](snakemake@f4c107f))
* Unclear handling of params overriding with inheritance
([snakemake#3624](snakemake#3624))
([077ac4a](snakemake@077ac4a))


### Documentation

* Added snakemake command to execute the rule plot_with_python
([snakemake#3608](snakemake#3608))
([bd99c11](snakemake@bd99c11))
* Updated Reporting Section of The Tutorial(Interaction, Visualization,
and Reporting with Snakemake)
([snakemake#3606](snakemake#3606))
([91e90ba](snakemake@91e90ba))
* Updated Requirement Section of The Tutorial With Warning of Not
Installing The Tools Manually
([snakemake#3607](snakemake#3607))
([3bd114b](snakemake@3bd114b))
* Updated Wrapper Version in Tutorial and Used Simple Rule For
Consistency & Ease
([snakemake#3605](snakemake#3605))
([b3bcc21](snakemake@b3bcc21))

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).
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Consistent dryrun output for group jobs

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