Initial commit

pkg/manager/apt.go

@@ -0,0 +1,152 @@
+/*
+ * LURE - Linux User REpository
+ * Copyright (C) 2023 Elara Musayelyan
+ *
+ * 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 (
+	"bufio"
+	"fmt"
+	"os/exec"
+	"strings"
+)
+
+// APT represents the APT package manager
+type APT struct {
+	rootCmd string
+}
+
+func (*APT) Exists() bool {
+	_, err := exec.LookPath("apt")
+	return err == nil
+}
+
+func (*APT) Name() string {
+	return "apt"
+}
+
+func (*APT) Format() string {
+	return "deb"
+}
+
+func (a *APT) SetRootCmd(s string) {
+	a.rootCmd = s
+}
+
+func (a *APT) Sync(opts *Opts) error {
+	opts = ensureOpts(opts)
+	cmd := a.getCmd(opts, "apt", "update")
+	setCmdEnv(cmd)
+	err := cmd.Run()
+	if err != nil {
+		return fmt.Errorf("apt: sync: %w", err)
+	}
+	return nil
+}
+
+func (a *APT) Install(opts *Opts, pkgs ...string) error {
+	opts = ensureOpts(opts)
+	cmd := a.getCmd(opts, "apt", "install")
+	cmd.Args = append(cmd.Args, pkgs...)
+	setCmdEnv(cmd)
+	err := cmd.Run()
+	if err != nil {
+		return fmt.Errorf("apt: install: %w", err)
+	}
+	return nil
+}
+
+func (a *APT) InstallLocal(opts *Opts, pkgs ...string) error {
+	opts = ensureOpts(opts)
+	return a.Install(opts, pkgs...)
+}
+
+func (a *APT) Remove(opts *Opts, pkgs ...string) error {
+	opts = ensureOpts(opts)
+	cmd := a.getCmd(opts, "apt", "remove")
+	cmd.Args = append(cmd.Args, pkgs...)
+	setCmdEnv(cmd)
+	err := cmd.Run()
+	if err != nil {
+		return fmt.Errorf("apt: remove: %w", err)
+	}
+	return nil
+}
+
+func (a *APT) Upgrade(opts *Opts, pkgs ...string) error {
+	opts = ensureOpts(opts)
+	return a.Install(opts, pkgs...)
+}
+
+func (a *APT) UpgradeAll(opts *Opts) error {
+	opts = ensureOpts(opts)
+	cmd := a.getCmd(opts, "apt", "upgrade")
+	setCmdEnv(cmd)
+	err := cmd.Run()
+	if err != nil {
+		return fmt.Errorf("apt: upgradeall: %w", err)
+	}
+	return nil
+}
+
+func (a *APT) ListInstalled(opts *Opts) (map[string]string, error) {
+	out := map[string]string{}
+	cmd := exec.Command("dpkg-query", "-f", "${Package}\u200b${Version}\\n", "-W")
+
+	stdout, err := cmd.StdoutPipe()
+	if err != nil {
+		return nil, err
+	}
+
+	err = cmd.Start()
+	if err != nil {
+		return nil, err
+	}
+
+	scanner := bufio.NewScanner(stdout)
+	for scanner.Scan() {
+		name, version, ok := strings.Cut(scanner.Text(), "\u200b")
+		if !ok {
+			continue
+		}
+		out[name] = version
+	}
+
+	err = scanner.Err()
+	if err != nil {
+		return nil, err
+	}
+
+	return out, nil
+}
+
+func (a *APT) getCmd(opts *Opts, mgrCmd string, args ...string) *exec.Cmd {
+	var cmd *exec.Cmd
+	if opts.AsRoot {
+		cmd = exec.Command(getRootCmd(a.rootCmd), mgrCmd)
+		cmd.Args = append(cmd.Args, opts.Args...)
+		cmd.Args = append(cmd.Args, args...)
+	} else {
+		cmd = exec.Command(mgrCmd, args...)
+	}
+
+	if opts.NoConfirm {
+		cmd.Args = append(cmd.Args, "-y")
+	}
+
+	return cmd
+}