feat: Improve exec error handling#1368
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| # Locate xcode-select | ||
| xcode_select = rctx.which("xcode-select") | ||
| if not xcode_select.exists: |
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According to the docs, which() returns None if the binary isn't found. Are you find otherwise? That it returns a path object, but exists is False?
https://bazel.build/rules/lib/builtins/repository_ctx#which
Returns the path of the corresponding program or None if there is no such program in the path.
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I will update and test
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I created a function to handle all the which calls, and I am now testing for None. I moved uname to uname-hide and it works like a champ :)
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| # Copyright 2023 The Bazel Authors. All rights reserved. | |||
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I would have put this in util. But we don't have skylib imported everywhere.
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Nah, that's good. It's a good practice to avoid mixing code that is only used in (or can only be used in) the repo, loading, and analysis phases, for exactly this sort of reason.
If you want to move this into a new e.g. repo_util.bzl, I'd be +1 to that.
At times binaries are not in the path. This commit uses a new method to test that a binary exists before we try to execute the binary. The method fails with a message if the binary does not exist.
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| # Copyright 2023 The Bazel Authors. All rights reserved. | |||
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Nah, that's good. It's a good practice to avoid mixing code that is only used in (or can only be used in) the repo, loading, and analysis phases, for exactly this sort of reason.
If you want to move this into a new e.g. repo_util.bzl, I'd be +1 to that.
Add quotes around command name
Pull fail() call out into its own line/block
Add missing parentheses to fix syntax error
At times binaries are not in the path. This commit tests that the binary exists before we try to execute the binary.
This allows us to provide a more informative error message to the user.
Closes: #662