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Choose which version to install and write file

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This commit is contained in:
Owen Mansel-Chan
2023-04-19 17:08:17 +01:00
parent 644d7f18c2
commit 2db304edee
1 changed files with 89 additions and 2 deletions
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91
go/extractor/cli/go-autobuilder/go-autobuilder.go
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@@ -696,12 +696,99 @@ func installDependenciesAndBuild() {
extract(depMode, modMode)
}
func identifyEnvironment() {
const minGoVersion = "1.11"
const maxGoVersion = "1.20"
func outsideSupportedRange(version string) bool {
short := semver.MajorMinor("v" + version)
return semver.Compare(short, "v"+minGoVersion) < 0 || semver.Compare(short, "v"+maxGoVersion) > 0
}
func isGoInstalled() bool {
_, err := exec.LookPath("go")
return err == nil
}
func getVersionToInstall() string {
log.Printf("Autobuilder was built with %s, environment has %s\n", runtime.Version(), getEnvGoVersion())
depMode := getDepMode()
goModVersion, goDirectiveFound := tryReadGoDirective(depMode)
if outsideSupportedRange(goModVersion) {
log.Println("The version of Go specified in the go.mod file (" + goModVersion + ") is outside of the supported range (" + minGoVersion + "-" + maxGoVersion + ").")
//TODO: emit diagnostic
return ""
}
if !isGoInstalled() {
if goDirectiveFound {
log.Println("No version of Go installed. Writing an `environment.json` file specifying the version of Go from the go.mod file (" + goModVersion + ").")
return goModVersion
} else {
log.Println("No version of Go installed and no `go.mod` file found. Writing an `environment.json` file specifying the maximum supported version of Go (" + maxGoVersion + ").")
return maxGoVersion
}
}
envVersion := getEnvGoVersion()[2:]
if outsideSupportedRange(envVersion) {
log.Println("The version of Go installed in the environment (" + goModVersion + ") is outside of the supported range (" + minGoVersion + "-" + maxGoVersion + ").")
//TODO: emit diagnostic
return ""
}
if !goDirectiveFound {
log.Println("No `go.mod` file found. Version " + envVersion + " installed in the environment.")
return ""
}
if semver.Compare("v"+goModVersion, "v"+envVersion) > 0 {
log.Println(
"The version of Go installed in the environment (" + envVersion + ") is lower than the version specified in the go.mod file (" + goModVersion +
").\nWriting an `environment.json` file specifying the version of go from the go.mod file (" + goModVersion + ").")
return goModVersion
}
// no need to install a version of Go
return ""
}
func writeEnvironmentFile(version string) {
var content string
if version == "" {
content = `{ "include": [] }`
} else {
content = `{ "include": [ { "go": { "version": "` + version + `" } } ] }`
}
targetFile, err := os.Create("environment.json")
if err != nil {
log.Println("Failed to create environment.json: ")
log.Println(err)
return
}
defer func() {
if err := targetFile.Close(); err != nil {
log.Println("Failed to close environment.json:")
log.Println(err)
}
}()
_, err = targetFile.WriteString(content)
if err != nil {
log.Println("Failed to write to environment.json: ")
log.Println(err)
}
}
func identifyEnvironment() {
versionToInstall := getVersionToInstall()
writeEnvironmentFile(versionToInstall)
}
func main() {
if len(os.Args) == 0 {
if len(os.Args) == 1 {
installDependenciesAndBuild()
} else if len(os.Args) == 2 && os.Args[1] == "--identify-environment" {
identifyEnvironment()