jnc run

Runs a task or shell command inside the activated workspace environment. The command can be a predefined task from the manifest or an arbitrary executable found in the environment’s PATH. The environment is automatically installed and updated before execution if needed. Tasks defined in the manifest can depend on other tasks and will be executed in the correct topological order. If no task is provided, jnc run prints a list of all available tasks. Alias: r

Usage

jnc run [OPTIONS] [TASK]...

Arguments

Argument	Description
`TASK`	The task name(s) or shell command to run. Multiple tasks can be chained.

Options

Option	Description
`-e`, `--environment <ENV>`	The environment to run the task in.
`-x`, `--executable`	Execute the command as a raw executable, bypassing task resolution. Useful when a task name and an executable share the same name.
`--clean-env`	Run with a clean environment, ignoring variables from the current shell.
`--skip-deps`	Do not run the task’s `depends-on` dependencies.
`--templated`	Enable template rendering for command arguments (e.g., `{{ jnc.platform }}`).
`-n`, `--dry-run`	Print the command that would be run without executing it.

Update Options

Option	Description
`--frozen`	Use the lockfile as-is, do not update it.
`--locked`	Require the lockfile to be up-to-date, abort if not.
`--no-install`	Do not install the environment before running.
`--as-is`	Shorthand for `--frozen --no-install`.

Global Options

Option	Description
`-m`, `--manifest-path <PATH>`	Path to `jnc.toml`, `pyproject.toml`, or the workspace directory.

Examples

Run a predefined task

jnc run test

Run an arbitrary command in the environment

jnc run python -c "print('Hello!')"

Run a task in a specific environment

jnc run --environment test pytest -v

Chain multiple tasks

jnc run build test lint

Run with a clean environment

jnc run --clean-env python my_script.py

Dry run to preview commands

jnc run --dry-run test

Run a raw executable (bypass task resolution)

jnc run --executable python --version

List all available tasks

jnc run

Overview

Commands

jnc run

jnc run

Usage

Arguments

Options

Update Options

Global Options

Examples

Run a predefined task

Run an arbitrary command in the environment

Run a task in a specific environment

Chain multiple tasks

Run with a clean environment

Dry run to preview commands

Run a raw executable (bypass task resolution)

List all available tasks

​jnc run

​Usage

​Arguments

​Options

​Update Options

​Global Options

​Examples

​Run a predefined task

​Run an arbitrary command in the environment

​Run a task in a specific environment

​Chain multiple tasks

​Run with a clean environment

​Dry run to preview commands

​Run a raw executable (bypass task resolution)

​List all available tasks

jnc run

Usage

Arguments

Options

Update Options

Global Options

Examples

Run a predefined task

Run an arbitrary command in the environment

Run a task in a specific environment

Chain multiple tasks

Run with a clean environment

Dry run to preview commands

Run a raw executable (bypass task resolution)

List all available tasks