npm: support aliases in yarn lock v1 #3555
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When parsing a `yarn.lock v1` file, ScanCode does not handle aliases properly. Aliases have the form: `<alias-package>@npm:<package>` More info about aliases: https://classic.yarnpkg.com/lang/en/docs/cli/add/#toc-yarn-add-alias The current code incorrecly parse aliases and end up throwing an exception, resulting in empty results. A single alias in a yarn.lock file is gonna make the parser return 0 packages. This patch adds the logic to handle them by simply dropping the alias part, and just keeping the package part. Test plan: updated the unit tests. Signed-off-by: Adrien Schildknecht <adrs@fb.com>
An assert in the code was making aliases using `@` fail. Signed-off-by: Adrien Schildknecht <adrs@fb.com>
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@schischi do you know if these aliases also show up in yarn v2? |
AyanSinhaMahapatra
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Apr 26, 2024
Reference: #3555 Signed-off-by: Ayan Sinha Mahapatra <ayansmahapatra@gmail.com>
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@pombredanne it does not seem like we have this in yarn v2 as there is no mention of aliases in the doc for yarn v2 at https://yarnpkg.com/cli/add similar to https://classic.yarnpkg.com/lang/en/docs/cli/add/#toc-yarn-add-alias, which is the doc for yarn v1. |
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ScanCode does not handle aliases in
yarn.lock v1file.Aliases have the form:
<alias-package>@npm:<package>More info about aliases: https://classic.yarnpkg.com/lang/en/docs/cli/add/#toc-yarn-add-alias
The current code incorrectly parses aliases and end up throwing an exception, resulting in empty results.
A single alias in a yarn.lock file is gonna make the parser return 0 packages.
This patch adds the logic to handle them by simply dropping the alias part, and just keeping the package part.
Test plan: updated the unit tests.
Signed-off-by: Adrien Schildknecht adrs@fb.com