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Prefer installing version from toolchain directive

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Prefer this over the version from the `go` directive. Per the docs[1]

> The toolchain line declares a suggested toolchain to use with the
module or workspace

It seems reasonable to use this, since running this action in a
directory containing a `go.mod` (or `go.work`) suggests the user is
wishing to work _with the module or workspace_.

See (TODO link issue)
This commit is contained in:
Matthew Hughes 2024-03-03 09:48:10 +00:00
parent 763ffebcce
commit 145e58d96c
3 changed files with 67 additions and 4 deletions
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11
src/installer.ts
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@ -424,8 +424,15 @@ export function parseGoVersionFile(versionFilePath: string): string {
path.basename(versionFilePath) === 'go.mod' ||
path.basename(versionFilePath) === 'go.work'
) {
const match = contents.match(/^go (\d+(\.\d+)*)/m);
return match ? match[1] : '';
// toolchain directive: https://go.dev/ref/mod#go-mod-file-toolchain
const matchToolchain = contents.match(/^toolchain go(\d+(\.\d+)*)/m);
if (matchToolchain) {
return matchToolchain[1];
}
// go directive: https://go.dev/ref/mod#go-mod-file-go
const matchGo = contents.match(/^go (\d+(\.\d+)*)/m);
return matchGo ? matchGo[1] : '';
}
return contents.trim();