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Add partial support for cross-compiling on Linux ARM runners

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Until https://github.com/cross-rs/cross/issues/1628 is resolved, running cross on Linux ARM also
requires the user to provide a custom Docker image, so this is only sort of usable.
This commit is contained in:
Dave Rolsky
2025-02-17 00:15:27 -06:00
parent 601d02e82d
commit 83dc934d7f
4 changed files with 55 additions and 1 deletions
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README.md
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@@ -163,6 +163,19 @@ you can avoid this issue by structuring your workflow as follows:
When structured this way, it does not matter if the output of crate A is deleted in step 3.
## Cross-Compiling from Linux ARM Runners
In theory, this should work, and this action does implement some of the necessary work for this.
However, there are a couple issues with this:
1. As of 2025-02-17, the `cross` project does not publish Linux ARM binary releases. That means that
in order to use `cross` on a Linux ARM runner as part of this action, you must set
`cross-version` to a more recent commit from the `cross` repo.
2. There is
[a bug in `cross` that means you must use a custom Docker image](https://github.com/cross-rs/cross/issues/1628)
when cross-compiling from a Linux ARM runner. See
[this other `cross` issue](https://github.com/cross-rs/cross/issues/751) for more details.
## Linting and Tidying this Code
The code in this repo is linted and tidied with