59 lines
1.0 KiB
Go
59 lines
1.0 KiB
Go
package env
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import (
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"os"
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"path/filepath"
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"strings"
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)
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const (
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LLGoCompilerPkg = "github.com/goplus/llgo"
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)
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func LLGoROOT() string {
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if root, ok := isLLGoRoot(os.Getenv("LLGO_ROOT")); ok {
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return root
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}
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// Get executable path
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exe, err := os.Executable()
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if err != nil {
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return ""
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}
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// Resolve any symlinks
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exe, err = filepath.EvalSymlinks(exe)
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if err != nil {
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return ""
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}
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// Check if parent directory is bin
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dir := filepath.Dir(exe)
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if filepath.Base(dir) != "bin" {
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return ""
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}
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// Get parent directory of bin
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root := filepath.Dir(dir)
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if root, ok := isLLGoRoot(root); ok {
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return root
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}
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return ""
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}
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func isLLGoRoot(root string) (string, bool) {
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if root == "" {
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return "", false
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}
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root, err := filepath.Abs(root)
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if err != nil {
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return "", false
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}
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// Check for go.mod
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data, err := os.ReadFile(filepath.Join(root, "go.mod"))
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if err != nil {
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return "", false
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}
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// Check module name
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if !strings.Contains(string(data), "module "+LLGoCompilerPkg+"\n") {
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return "", false
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}
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return root, true
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}
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