88 lines
1.8 KiB
Go
88 lines
1.8 KiB
Go
package repo
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import (
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"os"
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"path/filepath"
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"runtime"
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"strings"
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"sync"
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)
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var rootPath = sync.OnceValue(func() string {
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_, filename, _, ok := runtime.Caller(0)
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if !ok {
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panic("could not get current filename")
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}
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filename = filepath.FromSlash(filename) // runtime.Caller always returns forward slashes; https://go.dev/issues/3335, https://go.dev/cl/603275
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if strings.HasPrefix(filename, "github.com/") {
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panic("repo root cannot be found when built with -trimpath")
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}
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if !filepath.IsAbs(filename) {
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panic(filename + " is not an absolute path")
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}
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root := filepath.VolumeName(filename) + string(filepath.Separator)
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dir := filepath.Dir(filename)
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for {
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if _, err := os.Stat(filepath.Join(dir, "go.mod")); err == nil {
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return dir
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}
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if dir == root {
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break
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}
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dir = filepath.Dir(dir)
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}
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panic("could not find go.mod above " + filename)
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})
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func RootPath() string {
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return rootPath()
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}
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var typeScriptSubmodulePath = sync.OnceValue(func() string {
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return filepath.Join(rootPath(), "_submodules", "TypeScript")
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})
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func TypeScriptSubmodulePath() string {
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return typeScriptSubmodulePath()
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}
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var testDataPath = sync.OnceValue(func() string {
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return filepath.Join(rootPath(), "testdata")
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})
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func TestDataPath() string {
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return testDataPath()
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}
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var typeScriptSubmoduleExists = sync.OnceValue(func() bool {
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p := filepath.Join(typeScriptSubmodulePath(), "package.json")
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if _, err := os.Stat(p); err != nil {
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if os.IsNotExist(err) {
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return false
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}
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panic(err)
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}
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return true
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})
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func TypeScriptSubmoduleExists() bool {
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return typeScriptSubmoduleExists()
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}
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type SkippableTest interface {
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Helper()
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Skipf(format string, args ...any)
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}
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func SkipIfNoTypeScriptSubmodule(t SkippableTest) {
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t.Helper()
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if !typeScriptSubmoduleExists() {
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t.Skipf("TypeScript submodule does not exist")
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}
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}
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