Merge commit 'a213e8bcd1d8e4e5c764978879d875d2d55dd400' as 'v2'

v2/internal/system/packagemanager/emerge.go

@@ -0,0 +1,117 @@
+// +build linux
+
+package packagemanager
+
+import (
+	"os/exec"
+	"regexp"
+	"strings"
+
+	"github.com/wailsapp/wails/v2/internal/shell"
+)
+
+// Emerge represents the Emerge package manager
+type Emerge struct {
+	name string
+	osid string
+}
+
+// NewEmerge creates a new Emerge instance
+func NewEmerge(osid string) *Emerge {
+	return &Emerge{
+		name: "emerge",
+		osid: osid,
+	}
+}
+
+// Packages returns the libraries that we need for Wails to compile
+// They will potentially differ on different distributions or versions
+func (e *Emerge) Packages() packagemap {
+	return packagemap{
+		"libgtk-3": []*Package{
+			{Name: "x11-libs/gtk+", SystemPackage: true, Library: true},
+		},
+		"libwebkit": []*Package{
+			{Name: "net-libs/webkit-gtk", SystemPackage: true, Library: true},
+		},
+		"gcc": []*Package{
+			{Name: "sys-devel/gcc", SystemPackage: true},
+		},
+		"pkg-config": []*Package{
+			{Name: "dev-util/pkgconf", SystemPackage: true},
+		},
+		"npm": []*Package{
+			{Name: "net-libs/nodejs", SystemPackage: true},
+		},
+		"docker": []*Package{
+			{Name: "app-emulation/docker", SystemPackage: true, Optional: true},
+		},
+	}
+}
+
+// Name returns the name of the package manager
+func (e *Emerge) Name() string {
+	return e.name
+}
+
+// PackageInstalled tests if the given package name is installed
+func (e *Emerge) PackageInstalled(pkg *Package) (bool, error) {
+	if pkg.SystemPackage == false {
+		return false, nil
+	}
+	stdout, _, err := shell.RunCommand(".", "emerge", "-s", pkg.Name+"$")
+	if err != nil {
+		_, ok := err.(*exec.ExitError)
+		if ok {
+			return false, nil
+		}
+		return false, err
+	}
+
+	regex := `.*\*\s+` + regexp.QuoteMeta(pkg.Name) + `\n(?:\S|\s)+?Latest version installed: (.*)`
+	installedRegex := regexp.MustCompile(regex)
+	matches := installedRegex.FindStringSubmatch(stdout)
+	pkg.Version = ""
+	noOfMatches := len(matches)
+	installed := false
+	if noOfMatches > 1 && matches[1] != "[ Not Installed ]" {
+		installed = true
+		pkg.Version = strings.TrimSpace(matches[1])
+	}
+	return installed, err
+}
+
+// PackageAvailable tests if the given package is available for installation
+func (e *Emerge) PackageAvailable(pkg *Package) (bool, error) {
+	if pkg.SystemPackage == false {
+		return false, nil
+	}
+	stdout, _, err := shell.RunCommand(".", "emerge", "-s", pkg.Name+"$")
+	// We add a space to ensure we get a full match, not partial match
+	if err != nil {
+		_, ok := err.(*exec.ExitError)
+		if ok {
+			return false, nil
+		}
+		return false, err
+	}
+
+	installedRegex := regexp.MustCompile(`.*\*\s+` + regexp.QuoteMeta(pkg.Name) + `\n(?:\S|\s)+?Latest version available: (.*)`)
+	matches := installedRegex.FindStringSubmatch(stdout)
+	pkg.Version = ""
+	noOfMatches := len(matches)
+	available := false
+	if noOfMatches > 1 {
+		available = true
+		pkg.Version = strings.TrimSpace(matches[1])
+	}
+	return available, nil
+}
+
+// InstallCommand returns the package manager specific command to install a package
+func (e *Emerge) InstallCommand(pkg *Package) string {
+	if pkg.SystemPackage == false {
+		return pkg.InstallCommand[e.osid]
+	}
+	return "sudo emerge " + pkg.Name
+}