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

internal/manager/apt_rpm.go

@@ -0,0 +1,112 @@
+// 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 manager
+
+import (
+	"fmt"
+	"os/exec"
+	"strings"
+)
+
+// APTRpm represents the APT-RPM package manager
+type APTRpm struct {
+	CommonPackageManager
+	CommonRPM
+}
+
+func NewAPTRpm() *APTRpm {
+	return &APTRpm{
+		CommonPackageManager: CommonPackageManager{
+			noConfirmArg: "-y",
+		},
+	}
+}
+
+func (*APTRpm) Name() string {
+	return "apt-rpm"
+}
+
+func (*APTRpm) Format() string {
+	return "rpm"
+}
+
+func (*APTRpm) Exists() bool {
+	cmd := exec.Command("apt-config", "dump")
+	output, err := cmd.Output()
+	if err != nil {
+		return false
+	}
+
+	return strings.Contains(string(output), "RPM")
+}
+
+func (a *APTRpm) Sync(opts *Opts) error {
+	opts = ensureOpts(opts)
+	cmd := a.getCmd(opts, "apt-get", "update")
+	setCmdEnv(cmd)
+	err := cmd.Run()
+	if err != nil {
+		return fmt.Errorf("apt-get: sync: %w", err)
+	}
+	return nil
+}
+
+func (a *APTRpm) Install(opts *Opts, pkgs ...string) error {
+	opts = ensureOpts(opts)
+	cmd := a.getCmd(opts, "apt-get", "install")
+	cmd.Args = append(cmd.Args, pkgs...)
+	setCmdEnv(cmd)
+	cmd.Stdout = cmd.Stderr
+	err := cmd.Run()
+	if err != nil {
+		return fmt.Errorf("apt-get: install: %w", err)
+	}
+	return nil
+}
+
+func (a *APTRpm) InstallLocal(opts *Opts, pkgs ...string) error {
+	opts = ensureOpts(opts)
+	return a.Install(opts, pkgs...)
+}
+
+func (a *APTRpm) Remove(opts *Opts, pkgs ...string) error {
+	opts = ensureOpts(opts)
+	cmd := a.getCmd(opts, "apt-get", "remove")
+	cmd.Args = append(cmd.Args, pkgs...)
+	setCmdEnv(cmd)
+	err := cmd.Run()
+	if err != nil {
+		return fmt.Errorf("apt-get: remove: %w", err)
+	}
+	return nil
+}
+
+func (a *APTRpm) Upgrade(opts *Opts, pkgs ...string) error {
+	opts = ensureOpts(opts)
+	return a.Install(opts, pkgs...)
+}
+
+func (a *APTRpm) UpgradeAll(opts *Opts) error {
+	opts = ensureOpts(opts)
+	cmd := a.getCmd(opts, "apt-get", "dist-upgrade")
+	setCmdEnv(cmd)
+	err := cmd.Run()
+	if err != nil {
+		return fmt.Errorf("apt-get: upgradeall: %w", err)
+	}
+	return nil
+}