feat: remove NWScript compiler support

This commit is contained in:
2026-06-09 17:57:57 +02:00
parent de7e99c55c
commit f3ed13ce19
10 changed files with 4 additions and 1297 deletions
-220
View File
@@ -6,11 +6,9 @@ import (
"encoding/json"
"errors"
"fmt"
"io"
"os"
"os/exec"
"path/filepath"
"runtime"
"slices"
"strconv"
"strings"
@@ -544,228 +542,10 @@ func collectModuleResources(p *project.Project, moduleHakOrder []string) ([]erf.
moduleResources = append(moduleResources, resource)
}
compiledScripts, err := compileReferencedScripts(p)
if err != nil {
return nil, err
}
moduleResources = append(moduleResources, compiledScripts...)
sortResources(moduleResources)
return moduleResources, nil
}
func compileReferencedScripts(p *project.Project) ([]erf.Resource, error) {
if skipNSSCompilation() {
return nil, nil
}
referenced, err := referencedScriptResrefs(p)
if err != nil {
return nil, err
}
if len(referenced) == 0 {
return nil, nil
}
scriptSources := make(map[string]string, len(p.Inventory.ScriptFiles))
for _, rel := range p.Inventory.ScriptFiles {
resref := strings.ToLower(strings.TrimSuffix(filepath.Base(rel), filepath.Ext(rel)))
scriptSources[resref] = filepath.Join(p.SourceDir(), filepath.FromSlash(rel))
}
compiler, err := resolveScriptCompiler(p)
if err != nil {
return nil, err
}
compilerEnv, err := resolveScriptCompilerEnvironment(p)
if err != nil {
return nil, err
}
cacheDir := compiledScriptCacheDir(p)
if err := os.RemoveAll(cacheDir); err != nil {
return nil, fmt.Errorf("clear script compiler cache dir: %w", err)
}
if err := os.MkdirAll(cacheDir, 0o755); err != nil {
return nil, fmt.Errorf("create script compiler cache dir: %w", err)
}
resources := make([]erf.Resource, 0, len(referenced))
scriptsDir := p.ScriptSourceDir()
for _, resref := range referenced {
sourcePath, ok := scriptSources[resref]
if !ok {
continue
}
outputPath := filepath.Join(cacheDir, resref+".ncs")
cmd := exec.Command(compiler, "--dirs", scriptsDir, "-o", outputPath, sourcePath)
cmd.Env = compilerEnv
output, err := cmd.CombinedOutput()
if err != nil {
message := strings.TrimSpace(string(output))
if message == "" {
message = err.Error()
}
return nil, fmt.Errorf("compile script %s: %s", filepath.Base(sourcePath), message)
}
resource, err := rawResource(outputPath)
if err != nil {
return nil, fmt.Errorf("load compiled script %s: %w", filepath.Base(outputPath), err)
}
resources = append(resources, resource)
}
return resources, nil
}
func skipNSSCompilation() bool {
switch strings.ToLower(strings.TrimSpace(os.Getenv("SOW_MODULE_SKIP_NSS_COMPILATION"))) {
case "1", "true", "yes", "on":
return true
default:
return false
}
}
func compiledScriptCacheDir(p *project.Project) string {
return p.ScriptCacheDir()
}
func referencedScriptResrefs(p *project.Project) ([]string, error) {
referenced := map[string]struct{}{}
for _, rel := range p.Inventory.SourceFiles {
abs := filepath.Join(p.SourceDir(), filepath.FromSlash(rel))
document, _, _, err := validatorLoadDocument(abs)
if err != nil {
return nil, err
}
validatorWalkFields(document.Root, func(fieldLabel, value string) {
if !validatorIsScriptField(fieldLabel) {
return
}
value = strings.TrimSpace(value)
if value == "" {
return
}
referenced[strings.ToLower(value)] = struct{}{}
})
}
resrefs := make([]string, 0, len(referenced))
for resref := range referenced {
resrefs = append(resrefs, resref)
}
slices.Sort(resrefs)
return resrefs, nil
}
func resolveScriptCompiler(p *project.Project) (string, error) {
candidates := make([]string, 0, 2+len(p.ScriptCompilerSearchPaths()))
if configured := p.ScriptCompilerPath(); configured != "" {
candidates = append(candidates, configured)
}
if configured := strings.TrimSpace(os.Getenv(p.ScriptCompilerPathEnv())); configured != "" {
candidates = append(candidates, configured)
}
candidates = append(candidates, p.ScriptCompilerSearchPaths()...)
if runtime.GOOS == "windows" {
slices.SortStableFunc(candidates, func(a, b string) int {
aExe := strings.HasSuffix(strings.ToLower(a), ".exe")
bExe := strings.HasSuffix(strings.ToLower(b), ".exe")
if aExe == bExe {
return strings.Compare(a, b)
}
if aExe {
return -1
}
return 1
})
}
for _, candidate := range candidates {
if binary, ok := strings.CutPrefix(candidate, "PATH:"); ok {
if compiler, err := exec.LookPath(binary); err == nil && scriptCompilerRunnable(compiler) {
return compiler, nil
}
continue
}
if info, err := os.Stat(candidate); err == nil && !info.IsDir() && scriptCompilerRunnable(candidate) {
return candidate, nil
}
}
return "", fmt.Errorf("script compiler not found; configure scripts.compiler.path or set %s", p.ScriptCompilerPathEnv())
}
func scriptCompilerRunnable(path string) bool {
if strings.TrimSpace(path) == "" {
return false
}
info, err := os.Stat(path)
if err != nil || info.IsDir() {
return false
}
cmd := exec.Command(path, "--help")
cmd.Stdout = io.Discard
cmd.Stderr = io.Discard
return cmd.Run() == nil
}
func validatorLoadDocument(path string) (gff.Document, string, string, error) {
raw, err := os.ReadFile(path)
if err != nil {
return gff.Document{}, "", "", fmt.Errorf("read %s: %w", path, err)
}
stem := strings.TrimSuffix(filepath.Base(path), ".json")
extension := strings.TrimPrefix(strings.ToLower(filepath.Ext(stem)), ".")
if extension == "" {
return gff.Document{}, "", "", fmt.Errorf("missing resource extension before .json: %s", path)
}
resref := strings.ToLower(strings.TrimSuffix(stem, "."+extension))
var document gff.Document
if err := json.Unmarshal(raw, &document); err != nil {
return gff.Document{}, "", "", fmt.Errorf("parse %s: %w", path, err)
}
return document, resref, extension, nil
}
func validatorWalkFields(root gff.Struct, visit func(string, string)) {
walkScriptFields(root, visit)
}
func validatorIsScriptField(label string) bool {
return strings.HasPrefix(label, "On") || strings.HasSuffix(label, "Script") || strings.Contains(label, "Script")
}
func walkScriptFields(s gff.Struct, visit func(string, string)) {
for _, field := range s.Fields {
if value, ok := fieldStringValueForScripts(field.Value); ok {
visit(field.Label, value)
}
switch typed := field.Value.(type) {
case gff.Struct:
walkScriptFields(typed, visit)
case gff.ListValue:
for _, item := range typed {
walkScriptFields(item, visit)
}
}
}
}
func fieldStringValueForScripts(value gff.Value) (string, bool) {
switch typed := value.(type) {
case gff.StringValue:
return string(typed), true
case gff.ResRefValue:
return string(typed), true
default:
return "", false
}
}
func collectAssetResources(p *project.Project, requireContent bool, allowed map[string]struct{}, musicAssets *preparedMusicAssets, generated2DAAssets []topdata.Generated2DAAsset) ([]assetResource, error) {
var hakResources []assetResource
assetCreatedAt, err := collectGitAssetCreationTimes(p)
-17
View File
@@ -164,23 +164,6 @@ func expectedResources(p *project.Project) (map[string]resourceExpectation, erro
}
}
compiledScripts, err := compileReferencedScripts(p)
if err != nil {
return nil, err
}
for _, resource := range compiledScripts {
extension, ok := erf.ExtensionForResourceType(resource.Type)
if !ok {
return nil, fmt.Errorf("unsupported compiled resource type for %s", resource.Name)
}
key := resourceKey(resource.Name, extension)
out[key] = resourceExpectation{
Key: key,
Kind: "compiled-script",
Bytes: resource.Data,
}
}
for _, rel := range p.Inventory.AssetFiles {
abs := filepath.Join(p.AssetsDir(), filepath.FromSlash(rel))
data, err := os.ReadFile(abs)
+1 -1
View File
@@ -289,7 +289,7 @@ func extractedFile(p *project.Project, resource erf.Resource, extension string)
switch extension {
case "nss":
target, err := extractionTarget(p, "paths.source", effective.Paths.Source, p.SourceDir(), filepath.FromSlash(effective.Scripts.SourceDir), resref+".nss")
target, err := extractionTarget(p, "paths.source", effective.Paths.Source, p.SourceDir(), "scripts", resref+".nss")
if err != nil {
return "", nil, err
}
-311
View File
@@ -1028,205 +1028,6 @@ func TestBuildSplitsConfiguredHAKs(t *testing.T) {
}
}
func TestBuildModuleCompilesReferencedScripts(t *testing.T) {
root := t.TempDir()
mustMkdir(t, filepath.Join(root, "src", "module"))
mustMkdir(t, filepath.Join(root, "src", "placeables"))
mustMkdir(t, filepath.Join(root, "src", "scripts"))
mustMkdir(t, filepath.Join(root, ".nwn-assets"))
mustMkdir(t, filepath.Join(root, "build"))
mustWriteFile(t, filepath.Join(root, "nwn-tool.json"), `{
"module": {
"name": "Test Module",
"resref": "testmod"
},
"paths": {
"source": "src",
"assets": ".nwn-assets",
"build": "build"
}
}
`)
mustWriteFile(t, filepath.Join(root, "src", "module", "module.ifo.json"), `{
"file_type": "IFO ",
"file_version": "V3.2",
"root": {
"struct_type": 0,
"fields": [
{
"label": "Mod_Name",
"type": "CExoString",
"value": "Test Module"
}
]
}
}
`)
mustWriteFile(t, filepath.Join(root, "src", "placeables", "thing.utp.json"), `{
"file_type": "UTP ",
"file_version": "V3.2",
"root": {
"struct_type": 0,
"fields": [
{
"label": "OnUsed",
"type": "ResRef",
"value": "use_thing"
}
]
}
}
`)
mustWriteFile(t, filepath.Join(root, "src", "scripts", "use_thing.nss"), `void main() {}`)
compiler := filepath.Join(root, "fake-compiler.sh")
mustWriteFile(t, compiler, `#!/bin/sh
set -eu
if [ "${1:-}" = "--help" ]; then
exit 0
fi
out=""
src=""
while [ "$#" -gt 0 ]; do
case "$1" in
-o)
out="$2"
shift 2
;;
--dirs)
shift 2
;;
*)
src="$1"
shift
;;
esac
done
[ -n "$out" ]
[ -n "$src" ]
printf 'compiled:%s\nNWN_ROOT=%s\nNWN_HOME=%s\nNWN_USER_DIRECTORY=%s\n' "$(basename "$src")" "${NWN_ROOT-}" "${NWN_HOME-}" "${NWN_USER_DIRECTORY-}" > "$out"
`)
if err := os.Chmod(compiler, 0o755); err != nil {
t.Fatalf("chmod fake compiler: %v", err)
}
t.Setenv("SOW_NWN_SCRIPT_COMPILER", compiler)
installRoot := filepath.Join(root, "nwn-install")
mustMkdir(t, filepath.Join(installRoot, "data"))
t.Setenv("SOW_NWN_ROOT", installRoot)
userDir := filepath.Join(root, "nwn-user")
t.Setenv("SOW_NWN_USER_DIRECTORY", userDir)
p, err := project.Load(root)
if err != nil {
t.Fatalf("load project: %v", err)
}
if err := p.ValidateLayout(); err != nil {
t.Fatalf("validate layout: %v", err)
}
if err := p.Scan(); err != nil {
t.Fatalf("scan: %v", err)
}
result, err := BuildModule(p)
if err != nil {
t.Fatalf("build module: %v", err)
}
if result.Resources != 4 {
t.Fatalf("expected 4 resources, got %d", result.Resources)
}
fh, err := os.Open(result.ModulePath)
if err != nil {
t.Fatalf("open built module: %v", err)
}
defer fh.Close()
archive, err := erf.Read(fh)
if err != nil {
t.Fatalf("read built module: %v", err)
}
foundSource := false
foundCompiled := false
for _, resource := range archive.Resources {
if resource.Name != "use_thing" {
continue
}
if extension, ok := erf.ExtensionForResourceType(resource.Type); ok {
switch extension {
case "nss":
foundSource = true
case "ncs":
foundCompiled = true
if !strings.Contains(string(resource.Data), "compiled:use_thing.nss") {
t.Fatalf("unexpected compiled payload: %q", string(resource.Data))
}
if !strings.Contains(string(resource.Data), "NWN_ROOT="+installRoot) {
t.Fatalf("compiled payload missing NWN_ROOT: %q", string(resource.Data))
}
if !strings.Contains(string(resource.Data), "NWN_HOME="+userDir) {
t.Fatalf("compiled payload missing NWN_HOME: %q", string(resource.Data))
}
if !strings.Contains(string(resource.Data), "NWN_USER_DIRECTORY="+userDir) {
t.Fatalf("compiled payload missing NWN_USER_DIRECTORY: %q", string(resource.Data))
}
}
}
}
if !foundSource {
t.Fatalf("expected source script resource in archive")
}
if !foundCompiled {
t.Fatalf("expected compiled script resource in archive")
}
if _, err := os.Stat(userDir); err != nil {
t.Fatalf("expected build to prepare NWN user directory: %v", err)
}
if _, err := os.Stat(filepath.Join(root, ".cache", "ncs", "use_thing.ncs")); err != nil {
t.Fatalf("expected compiled script in .cache/ncs: %v", err)
}
if _, err := os.Stat(filepath.Join(root, ".nwn-assets", "ncs", "use_thing.ncs")); !os.IsNotExist(err) {
t.Fatalf("expected no compiled script in .nwn-assets/ncs, got err=%v", err)
}
compareResult, err := Compare(p)
if err != nil {
t.Fatalf("compare: %v", err)
}
if compareResult.Checked != 4 {
t.Fatalf("expected 4 compared resources, got %d", compareResult.Checked)
}
}
func TestParseSteamLibraryFolders(t *testing.T) {
root := t.TempDir()
vdf := filepath.Join(root, "libraryfolders.vdf")
mustWriteFile(t, vdf, `"libraryfolders"
{
"0"
{
"path" "/mnt/games/Steam"
}
"1" "D:\\SteamLibrary"
}
`)
got := parseSteamLibraryFolders(vdf)
if len(got) != 2 {
t.Fatalf("expected 2 library roots, got %d (%v)", len(got), got)
}
if got[0] != filepath.Clean("/mnt/games/Steam") {
t.Fatalf("unexpected first library root: %q", got[0])
}
if got[1] != filepath.Clean(`D:\SteamLibrary`) {
t.Fatalf("unexpected second library root: %q", got[1])
}
}
func TestBuildBuildsTopPackageAndInjectsHAKList(t *testing.T) {
root := t.TempDir()
mustMkdir(t, filepath.Join(root, "src", "module"))
@@ -1344,118 +1145,6 @@ func TestBuildBuildsTopPackageAndInjectsHAKList(t *testing.T) {
}
}
func TestBuildModuleSkipsReferencedScriptCompilationWhenRequested(t *testing.T) {
root := t.TempDir()
mustMkdir(t, filepath.Join(root, "src", "module"))
mustMkdir(t, filepath.Join(root, "src", "placeables"))
mustMkdir(t, filepath.Join(root, "src", "scripts"))
mustMkdir(t, filepath.Join(root, ".nwn-assets"))
mustMkdir(t, filepath.Join(root, "build"))
mustWriteFile(t, filepath.Join(root, "nwn-tool.json"), `{
"module": {
"name": "Test Module",
"resref": "testmod"
},
"paths": {
"source": "src",
"assets": ".nwn-assets",
"build": "build"
}
}
`)
mustWriteFile(t, filepath.Join(root, "src", "module", "module.ifo.json"), `{
"file_type": "IFO ",
"file_version": "V3.2",
"root": {
"struct_type": 0,
"fields": [
{
"label": "Mod_Name",
"type": "CExoString",
"value": "Test Module"
}
]
}
}
`)
mustWriteFile(t, filepath.Join(root, "src", "placeables", "thing.utp.json"), `{
"file_type": "UTP ",
"file_version": "V3.2",
"root": {
"struct_type": 0,
"fields": [
{
"label": "OnUsed",
"type": "ResRef",
"value": "use_thing"
}
]
}
}
`)
mustWriteFile(t, filepath.Join(root, "src", "scripts", "use_thing.nss"), `void main() {}`)
t.Setenv("SOW_MODULE_SKIP_NSS_COMPILATION", "1")
p, err := project.Load(root)
if err != nil {
t.Fatalf("load project: %v", err)
}
if err := p.ValidateLayout(); err != nil {
t.Fatalf("validate layout: %v", err)
}
if err := p.Scan(); err != nil {
t.Fatalf("scan: %v", err)
}
result, err := BuildModule(p)
if err != nil {
t.Fatalf("build module: %v", err)
}
if result.Resources != 3 {
t.Fatalf("expected 3 resources without compiled script, got %d", result.Resources)
}
fh, err := os.Open(result.ModulePath)
if err != nil {
t.Fatalf("open built module: %v", err)
}
defer fh.Close()
archive, err := erf.Read(fh)
if err != nil {
t.Fatalf("read built module: %v", err)
}
foundSource := false
foundCompiled := false
for _, resource := range archive.Resources {
if resource.Name != "use_thing" {
continue
}
if extension, ok := erf.ExtensionForResourceType(resource.Type); ok {
switch extension {
case "nss":
foundSource = true
case "ncs":
foundCompiled = true
}
}
}
if !foundSource {
t.Fatalf("expected source script resource in archive")
}
if foundCompiled {
t.Fatalf("did not expect compiled script resource in archive")
}
if _, err := os.Stat(filepath.Join(root, ".cache", "ncs", "use_thing.ncs")); !os.IsNotExist(err) {
t.Fatalf("expected no compiled script cache file, got err=%v", err)
}
}
func TestBuildModuleDoesNotCompileTopData(t *testing.T) {
root := t.TempDir()
mustMkdir(t, filepath.Join(root, "src", "module"))
-287
View File
@@ -1,287 +0,0 @@
package pipeline
import (
"bufio"
"fmt"
"os"
"os/exec"
"path/filepath"
"regexp"
"runtime"
"strings"
"gitea.westgate.pw/ShadowsOverWestgate/sow-tools/internal/project"
)
func resolveScriptCompilerEnvironment(p *project.Project) ([]string, error) {
env := os.Environ()
userDir, err := resolveNWNUserDirectory(p.ScriptCompilerNWNUserDirectoryEnvKeys())
if err != nil {
return nil, err
}
env = upsertEnv(env, "NWN_HOME", userDir)
env = upsertEnv(env, "NWN_USER_DIRECTORY", userDir)
root, err := resolveNWNRoot(p.ScriptCompilerNWNRootEnvKeys())
if err != nil {
return nil, err
}
if root != "" {
env = upsertEnv(env, "NWN_ROOT", root)
}
return env, nil
}
func resolveNWNUserDirectory(envKeys []string) (string, error) {
for _, key := range envKeys {
if value := strings.TrimSpace(os.Getenv(key)); value != "" {
path := filepath.Clean(expandUserPath(value))
if err := os.MkdirAll(path, 0o755); err != nil {
return "", fmt.Errorf("prepare NWN user directory %s from %s: %w", path, key, err)
}
return path, nil
}
}
path, err := defaultNWNUserDirectory()
if err != nil {
return "", err
}
if err := os.MkdirAll(path, 0o755); err != nil {
return "", fmt.Errorf("prepare default NWN user directory %s: %w", path, err)
}
return path, nil
}
func defaultNWNUserDirectory() (string, error) {
home, err := os.UserHomeDir()
if err != nil {
return "", fmt.Errorf("resolve user home directory: %w", err)
}
switch runtime.GOOS {
case "windows", "darwin":
return filepath.Join(home, "Documents", "Neverwinter Nights"), nil
default:
base := strings.TrimSpace(os.Getenv("XDG_DATA_HOME"))
if base == "" {
base = filepath.Join(home, ".local", "share")
}
return filepath.Join(base, "Neverwinter Nights"), nil
}
}
func resolveNWNRoot(envKeys []string) (string, error) {
for _, key := range envKeys {
if value := strings.TrimSpace(os.Getenv(key)); value != "" {
path := filepath.Clean(expandUserPath(value))
if !looksLikeNWNInstall(path) {
return "", fmt.Errorf("%s does not point to a Neverwinter Nights install root: %s", key, path)
}
return path, nil
}
}
for _, root := range candidateNWNInstallRoots() {
if looksLikeNWNInstall(root) {
return root, nil
}
}
return "", nil
}
func candidateNWNInstallRoots() []string {
candidates := make([]string, 0, 8)
for _, library := range steamLibraryRoots() {
candidates = append(candidates, filepath.Join(library, "steamapps", "common", "Neverwinter Nights"))
}
switch runtime.GOOS {
case "windows":
for _, base := range []string{
strings.TrimSpace(os.Getenv("PROGRAMFILES(X86)")),
strings.TrimSpace(os.Getenv("PROGRAMFILES")),
} {
if base == "" {
continue
}
candidates = append(candidates, filepath.Join(base, "Steam", "steamapps", "common", "Neverwinter Nights"))
}
case "darwin":
if home, err := os.UserHomeDir(); err == nil {
candidates = append(candidates, filepath.Join(home, "Library", "Application Support", "Steam", "steamapps", "common", "Neverwinter Nights"))
}
default:
if home, err := os.UserHomeDir(); err == nil {
candidates = append(candidates,
filepath.Join(home, ".local", "share", "Steam", "steamapps", "common", "Neverwinter Nights"),
filepath.Join(home, ".steam", "steam", "steamapps", "common", "Neverwinter Nights"),
filepath.Join(home, ".var", "app", "com.valvesoftware.Steam", ".local", "share", "Steam", "steamapps", "common", "Neverwinter Nights"),
)
}
}
return dedupePaths(candidates)
}
func steamLibraryRoots() []string {
steamRoots := defaultSteamRoots()
roots := make([]string, 0, len(steamRoots)+4)
roots = append(roots, steamRoots...)
for _, steamRoot := range steamRoots {
roots = append(roots, parseSteamLibraryFolders(filepath.Join(steamRoot, "steamapps", "libraryfolders.vdf"))...)
}
return dedupePaths(roots)
}
func defaultSteamRoots() []string {
roots := make([]string, 0, 6)
if runtime.GOOS == "windows" {
roots = append(roots, detectWindowsSteamRoot())
roots = append(roots,
filepath.Join(strings.TrimSpace(os.Getenv("PROGRAMFILES(X86)")), "Steam"),
filepath.Join(strings.TrimSpace(os.Getenv("PROGRAMFILES")), "Steam"),
)
return dedupePaths(filterNonEmpty(roots))
}
home, err := os.UserHomeDir()
if err != nil {
return nil
}
switch runtime.GOOS {
case "darwin":
roots = append(roots, filepath.Join(home, "Library", "Application Support", "Steam"))
default:
roots = append(roots,
filepath.Join(home, ".local", "share", "Steam"),
filepath.Join(home, ".steam", "steam"),
filepath.Join(home, ".var", "app", "com.valvesoftware.Steam", ".local", "share", "Steam"),
)
}
return dedupePaths(filterNonEmpty(roots))
}
func detectWindowsSteamRoot() string {
for _, args := range [][]string{
{"query", `HKCU\Software\Valve\Steam`, "/v", "SteamPath"},
{"query", `HKLM\SOFTWARE\WOW6432Node\Valve\Steam`, "/v", "InstallPath"},
{"query", `HKLM\SOFTWARE\Valve\Steam`, "/v", "InstallPath"},
} {
out, err := exec.Command("reg", args...).CombinedOutput()
if err != nil {
continue
}
if path := parseWindowsRegistryPath(string(out)); path != "" {
return filepath.Clean(path)
}
}
return ""
}
func parseWindowsRegistryPath(raw string) string {
index := strings.Index(raw, "REG_SZ")
if index == -1 {
return ""
}
return strings.TrimSpace(raw[index+len("REG_SZ"):])
}
func parseSteamLibraryFolders(path string) []string {
raw, err := os.ReadFile(path)
if err != nil {
return nil
}
pathPattern := regexp.MustCompile(`"path"\s*"([^"]+)"`)
legacyPattern := regexp.MustCompile(`^\s*"\d+"\s*"([^"]+)"\s*$`)
roots := make([]string, 0, 8)
scanner := bufio.NewScanner(strings.NewReader(string(raw)))
for scanner.Scan() {
line := scanner.Text()
if match := pathPattern.FindStringSubmatch(line); len(match) == 2 {
roots = append(roots, normalizeSteamPath(match[1]))
continue
}
if match := legacyPattern.FindStringSubmatch(line); len(match) == 2 {
roots = append(roots, normalizeSteamPath(match[1]))
}
}
return dedupePaths(filterNonEmpty(roots))
}
func normalizeSteamPath(value string) string {
value = strings.TrimSpace(value)
value = strings.ReplaceAll(value, `\\`, `\`)
return filepath.Clean(expandUserPath(value))
}
func looksLikeNWNInstall(path string) bool {
if strings.TrimSpace(path) == "" {
return false
}
info, err := os.Stat(filepath.Join(path, "data"))
return err == nil && info.IsDir()
}
func expandUserPath(path string) string {
if path == "" || path[0] != '~' {
return path
}
home, err := os.UserHomeDir()
if err != nil {
return path
}
if path == "~" {
return home
}
if path[1] == '/' || path[1] == '\\' {
return filepath.Join(home, path[2:])
}
return path
}
func upsertEnv(env []string, key, value string) []string {
prefix := key + "="
for i, entry := range env {
if strings.HasPrefix(entry, prefix) {
env[i] = prefix + value
return env
}
}
return append(env, prefix+value)
}
func dedupePaths(paths []string) []string {
seen := make(map[string]struct{}, len(paths))
out := make([]string, 0, len(paths))
for _, path := range paths {
if strings.TrimSpace(path) == "" {
continue
}
clean := filepath.Clean(path)
if _, ok := seen[clean]; ok {
continue
}
seen[clean] = struct{}{}
out = append(out, clean)
}
return out
}
func filterNonEmpty(values []string) []string {
out := make([]string, 0, len(values))
for _, value := range values {
if strings.TrimSpace(value) != "" {
out = append(out, value)
}
}
return out
}