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galaxy.tools.expressions package

galaxy.tools.expressions.do_eval(expression: str, jobinput: CWLObjectType, context: CWLOutputType | None = None, sandbox_command: Sequence[str] | None = None)[source]
galaxy.tools.expressions.evaluate(config, input)[source]
galaxy.tools.expressions.find_engine(config)[source]
galaxy.tools.expressions.register() → None[source]

Install the sandboxed engine as the process-wide cwl_utils JS engine.

Idempotent and thread-safe. Call before any expression is evaluated so no code path falls back to the unsafe Node vm engine.

galaxy.tools.expressions.resolve_isolation_command(setting: str) → tuple[str, ...] | None[source]

Resolve the expression_evaluation_isolation_command setting to a wrapper.

  • empty -> None (ordinary worker subprocess)

  • "bubblewrap"/"bwrap" -> the built-in bubblewrap command, but only on Linux with bwrap on PATH; otherwise None (ordinary worker subprocess) with a one-time warning, so a macOS dev box or a host without bubblewrap degrades cleanly

  • anything else -> the value parsed as a literal command prefix, used as-is

Cached so the PATH lookup and any warning happen once per distinct setting.

galaxy.tools.expressions.write_evalute_script(in_directory)[source]

Responsible for writing the script that evaluates expressions in Galaxy jobs.

Submodules

galaxy.tools.expressions.evaluation module

galaxy.tools.expressions.evaluation.do_eval(expression: str, jobinput: CWLObjectType, context: CWLOutputType | None = None, sandbox_command: Sequence[str] | None = None)[source]
galaxy.tools.expressions.evaluation.evaluate(config, input)[source]

galaxy.tools.expressions.script module

galaxy.tools.expressions.script.write_evalute_script(in_directory)[source]

Responsible for writing the script that evaluates expressions in Galaxy jobs.

galaxy.tools.expressions.util module

galaxy.tools.expressions.util.find_engine(config)[source]