build: reorganise build: abi4, fallback, prebuild cli

- ABI4 by default, fallback to abi 3.
- aa-prebuild cli that can be used by other project shipping profiles.
- --file option to cli to only build one dev profile.
- add abi version filter to only & exclude directives.

pkg/prebuild/cli/cli_test.go

@@ -0,0 +1,110 @@
+// apparmor.d - Full set of apparmor profiles
+// Copyright (C) 2023-2024 Alexandre Pujol <alexandre@pujol.io>
+// SPDX-License-Identifier: GPL-2.0-only
+
+package cli
+
+import (
+	"os"
+	"os/exec"
+	"testing"
+
+	"github.com/roddhjav/apparmor.d/pkg/paths"
+	"github.com/roddhjav/apparmor.d/pkg/prebuild"
+	"github.com/roddhjav/apparmor.d/pkg/prebuild/builder"
+	"github.com/roddhjav/apparmor.d/pkg/prebuild/prepare"
+)
+
+func setTestBuildDirectories(name string) {
+	testRoot := paths.New("/tmp/tests")
+	prebuild.Root = testRoot.Join(name)
+	prebuild.RootApparmord = prebuild.Root.Join("apparmor.d")
+}
+
+func chdirGitRoot() {
+	cmd := exec.Command("git", "rev-parse", "--show-toplevel")
+	out, err := cmd.Output()
+	if err != nil {
+		panic(err)
+	}
+	root := string(out)[0 : len(out)-1]
+	if err := os.Chdir(root); err != nil {
+		panic(err)
+	}
+}
+
+func Test_Prebuild(t *testing.T) {
+	tests := []struct {
+		name     string
+		wantErr  bool
+		full     bool
+		complain bool
+		enforce  bool
+		dist     string
+	}{
+		{
+			name:     "Build for Archlinux",
+			wantErr:  false,
+			full:     false,
+			complain: true,
+			enforce:  false,
+			dist:     "arch",
+		},
+		{
+			name:     "Build for Ubuntu",
+			wantErr:  false,
+			full:     true,
+			complain: false,
+			enforce:  true,
+			dist:     "ubuntu",
+		},
+		{
+			name:     "Build for Debian",
+			wantErr:  false,
+			full:     true,
+			complain: false,
+			enforce:  false,
+			dist:     "debian",
+		},
+		{
+			name:     "Build for OpenSUSE Tumbleweed",
+			wantErr:  false,
+			full:     true,
+			complain: true,
+			enforce:  false,
+			dist:     "opensuse",
+		},
+	}
+	chdirGitRoot()
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			setTestBuildDirectories(tt.name)
+			prebuild.Distribution = tt.dist
+			prepare.Prepares = []prepare.Task{}
+			prepare.Register(
+				"synchronise", "ignore", "merge",
+				"configure", "setflags", "systemd-default",
+			)
+
+			if full {
+				prepare.Register("fsp")
+				builder.Register("fsp")
+			} else {
+				prepare.Register("systemd-early")
+			}
+
+			if complain {
+				builder.Register("complain")
+			} else if enforce {
+				builder.Register("enforce")
+			}
+
+			if err := Prepare(); (err != nil) != tt.wantErr {
+				t.Errorf("Prepare() error = %v, wantErr %v", err, tt.wantErr)
+			}
+			if err := Build(); (err != nil) != tt.wantErr {
+				t.Errorf("Build() error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}