refactor: move pkg/ to internal/ and update imports

Restructure project by relocating package contents from pkg/ to internal/ to better reflect internal-only usage. This commit is initial step to prepare project for public api

pkg/distro/osrelease.go

@@ -1,123 +0,0 @@
-// This file was originally part of the project "LURE - Linux User REpository", created by Elara Musayelyan.
-// It has been modified as part of "ALR - Any Linux Repository" by the ALR Authors.
-//
-// ALR - Any Linux Repository
-// Copyright (C) 2025 The ALR Authors
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-package distro
-
-import (
-	"context"
-	"os"
-	"strings"
-
-	"mvdan.cc/sh/v3/expand"
-	"mvdan.cc/sh/v3/interp"
-	"mvdan.cc/sh/v3/syntax"
-
-	"gitea.plemya-x.ru/Plemya-x/ALR/internal/shutils/handlers"
-)
-
-// OSRelease contains information from an os-release file
-type OSRelease struct {
-	Name             string
-	PrettyName       string
-	ID               string
-	Like             []string
-	VersionID        string
-	ANSIColor        string
-	HomeURL          string
-	DocumentationURL string
-	SupportURL       string
-	BugReportURL     string
-	Logo             string
-	PlatformID       string
-}
-
-var parsed *OSRelease
-
-// OSReleaseName returns a struct parsed from the system's os-release
-// file. It checks /etc/os-release as well as /usr/lib/os-release.
-// The first time it's called, it'll parse the os-release file.
-// Subsequent calls will return the same value.
-func ParseOSRelease(ctx context.Context) (*OSRelease, error) {
-	if parsed != nil {
-		return parsed, nil
-	}
-
-	fl, err := os.Open("/usr/lib/os-release")
-	if err != nil {
-		fl, err = os.Open("/etc/os-release")
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	file, err := syntax.NewParser().Parse(fl, "/usr/lib/os-release")
-	if err != nil {
-		return nil, err
-	}
-
-	fl.Close()
-
-	// Create new shell interpreter with nop open, exec, readdir, and stat handlers
-	// as well as no environment variables in order to prevent vulnerabilities
-	// caused by changing the os-release file.
-	runner, err := interp.New(
-		interp.OpenHandler(handlers.NopOpen),
-		interp.ExecHandler(handlers.NopExec),
-		interp.ReadDirHandler2(handlers.NopReadDir),
-		interp.StatHandler(handlers.NopStat),
-		interp.Env(expand.ListEnviron()),
-		interp.Dir("/"),
-	)
-	if err != nil {
-		return nil, err
-	}
-
-	err = runner.Run(ctx, file)
-	if err != nil {
-		return nil, err
-	}
-
-	out := &OSRelease{
-		Name:             runner.Vars["NAME"].Str,
-		PrettyName:       runner.Vars["PRETTY_NAME"].Str,
-		ID:               runner.Vars["ID"].Str,
-		VersionID:        runner.Vars["VERSION_ID"].Str,
-		ANSIColor:        runner.Vars["ANSI_COLOR"].Str,
-		HomeURL:          runner.Vars["HOME_URL"].Str,
-		DocumentationURL: runner.Vars["DOCUMENTATION_URL"].Str,
-		SupportURL:       runner.Vars["SUPPORT_URL"].Str,
-		BugReportURL:     runner.Vars["BUG_REPORT_URL"].Str,
-		Logo:             runner.Vars["LOGO"].Str,
-		PlatformID:       runner.Vars["PLATFORM_ID"].Str,
-	}
-
-	distroUpdated := false
-	if distID, ok := os.LookupEnv("ALR_DISTRO"); ok {
-		out.ID = distID
-	}
-
-	if distLike, ok := os.LookupEnv("ALR_DISTRO_LIKE"); ok {
-		out.Like = strings.Split(distLike, " ")
-	} else if runner.Vars["ID_LIKE"].IsSet() && !distroUpdated {
-		out.Like = strings.Split(runner.Vars["ID_LIKE"].Str, " ")
-	}
-
-	parsed = out
-	return out, nil
-}