54 lines
1.5 KiB
Go
54 lines
1.5 KiB
Go
package build
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import (
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"context"
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"fmt"
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"os"
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"os/exec"
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"strings"
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"github.com/hashicorp/go-version"
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)
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// installGoVersion installs given version of Go using Go
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// according to https://golang.org/doc/manage-install
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func (gb *GoBuild) installGoVersion(ctx context.Context, v *version.Version) (string, CleanupFunc, error) {
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// trim 0 patch versions as that's how Go does it :shrug:
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shortVersion := strings.TrimSuffix(v.String(), ".0")
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pkgURL := fmt.Sprintf("golang.org/dl/go%s", shortVersion)
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gb.log().Printf("go getting %q", pkgURL)
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cmd := exec.CommandContext(ctx, "go", "get", pkgURL)
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out, err := cmd.CombinedOutput()
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if err != nil {
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return "", nil, fmt.Errorf("unable to install Go %s: %w\n%s", v, err, out)
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}
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cmdName := fmt.Sprintf("go%s", shortVersion)
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gb.log().Printf("downloading go %q", shortVersion)
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cmd = exec.CommandContext(ctx, cmdName, "download")
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out, err = cmd.CombinedOutput()
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if err != nil {
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return "", nil, fmt.Errorf("unable to download Go %s: %w\n%s", v, err, out)
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}
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gb.log().Printf("download of go %q finished", shortVersion)
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cleanupFunc := func(ctx context.Context) {
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cmd = exec.CommandContext(ctx, cmdName, "env", "GOROOT")
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out, err = cmd.CombinedOutput()
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if err != nil {
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return
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}
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rootPath := strings.TrimSpace(string(out))
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// run some extra checks before deleting, just to be sure
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if rootPath != "" && strings.HasSuffix(rootPath, v.String()) {
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os.RemoveAll(rootPath)
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}
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}
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return cmdName, cleanupFunc, nil
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}
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