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Restore behavior to not touch existing RUSTFLAGS variable

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Add changelog
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Jonas Bushart 2023-05-29 21:38:39 +02:00
parent 70241ab2e9
commit 1ef811fbfb
3 changed files with 13 additions and 5 deletions
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6
CHANGELOG.md
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@ -15,6 +15,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
Before only the items listed in `rust-toolchain` were installed.
Now all the items from the toolchain file are installed and then all the `target`s and `components` that are provided as action inputs.
This allows installing extra tools only for CI or simplify testing special targets in CI.
* Allow skipping the creation of a `RUSTFLAGS` environment variable.
Cargos logic for rustflags is complicated, and setting the `RUSTFLAGS` environment variable prevents other ways of working.
Provide a new `rustflags` input, which controls the environment variable creation.
If the value is set to the empty string, then `RUSTFLAGS` is not created.
Pre-existing `RUSTFLAGS` variables are never modified by this extension.
## [1.4.4] - 2023-03-18

8
README.md
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@ -57,10 +57,12 @@ Afterward, the `components` and `target` specified via inputs are installed in a
### RUSTFLAGS
By default, this action sets the `RUSTFLAGS` environment variable to `-D warnings`.
However, rustflags sources are mutually exclusive, so setting this environment variable omits any configuration through `target.*.rustflags` or `build.rustflags`.
However, rustflags sources are mutually exclusive, so setting this environment
variable omits any configuration through `target.*.rustflags` or
`build.rustflags`.
* If `RUSTFLAGS` is already set, no modifications of the variable are made and the original value remains.
* If `RUSTFLAGS` is unset and the `rustflags` input is empty (i.e., the empty string), then it will remain unset.
Use this, if you want to prevent the value from being set because you make use of `target.*.rustflags` or `build.rustflags`.
* Otherwise, the environment variable `RUSTFLAGS` is set to the content of `rustflags`.
To prevent this from happening, set the `rustflags` input to an empty string, which will
prevent the action from setting `RUSTFLAGS` at all, keeping any existing preferences.

2
action.yml
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@ -80,7 +80,7 @@ runs:
if [[ ! -v RUST_BACKTRACE ]]; then
echo "RUST_BACKTRACE=short" >> $GITHUB_ENV
fi
if [[ "$NEW_RUSTFLAGS" != "" ]]; then
if [[ ( ! -v RUSTFLAGS ) && $NEW_RUSTFLAGS != "" ]]; then
echo "RUSTFLAGS=$NEW_RUSTFLAGS" >> $GITHUB_ENV
fi
# Enable faster sparse index on nightly