feat: support apptainer (in particular avoid warnings)#1
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wdconinc
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Apr 16, 2024
veprbl
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Nov 11, 2025
veprbl
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Pull request overview
This PR adds support for Apptainer to prevent warnings when SINGULARITY_* and APPTAINER_* environment variables differ. The changes prioritize Apptainer over Singularity when both are available, set corresponding APPTAINER_* environment variables alongside existing SINGULARITY_* variables, and update user-facing messages and documentation to reflect support for both tools.
Changes:
- Added APPTAINER_TMPDIR and APPTAINER_BINDPATH environment variable exports
- Modified binary detection logic to prefer Apptainer over Singularity
- Updated error messages, help text, and comments to reference Apptainer alongside Singularity
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Co-authored-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
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Briefly, what does this PR introduce?
Apptainer warns when SINGULARITY_* and APPTAINER_* variables are different. This will make the user experience smoother with fewer warnings.
What kind of change does this PR introduce?
Please check if this PR fulfills the following:
Does this PR introduce breaking changes? What changes might users need to make to their code?
No.
Does this PR change default behavior?
No.