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9cd89569f5
Replaces the existing ESM loader for dealing with external module imports. This loader was introduced by Aspect for AIO `.mjs` scripts. The loader will be used as foundation for a more extensive loader that also properly handles first-party packages. Additionally another loader is added, all packed as a single loader because our current NodeJS version only supports a single loader per node invocation. So we implement chaining ourselves. The new loader will attempt rewriting `.js` extensions to `.mjs`, also it will add `.mjs` if not already done. This is necessary in the transition phase because we don't/cannot use explicit `.mts` extensions and also we don't specify extensions in imports yet. Long-term we would likely use `.mts` and explicit import extensions, but it's not yet clear how we would sync this into g3 too. PR Close #48521
22 lines
611 B
Python
22 lines
611 B
Python
"""ESM node module loader helpers."""
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def enable_esm_node_module_loader(
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node_modules_workspace,
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env):
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"""Enables a NodeJS import loader that ensures modules can be resolved from the Bazel repository.
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Args:
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node_modules_workspace: Name of the workspace in which node modules are available.
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env: Struct of environment variables passed to a binary/test.
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Returns:
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The updated `env` dictionary.
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"""
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env = dict(
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env,
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NODE_MODULES_WORKSPACE_NAME = node_modules_workspace,
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ESM_NODE_MODULE_LOADER_ENABLED = "true",
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)
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return env
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