Add version command

.gitignore

@@ -1,2 +1,3 @@
 /lure
 /dist/
+/version.txt

.goreleaser.yaml

@@ -1,6 +1,7 @@
 before:
   hooks:
     - go mod tidy
+    - go generate
 builds:
   - id: lure
     env:
@@ -29,18 +30,22 @@ nfpms:
       amd64: x86_64
       arm64: aarch64
     homepage: 'https://gitea.arsenm.dev/Arsen6331/lure'
-    maintainer: 'Arsen Musyaelyan <arsen@arsenm.dev>'
+    maintainer: 'Arsen Musayelyan <arsen@arsenm.dev>'
     license: GPLv3
     formats:
       - apk
       - deb
       - rpm
+    provides:
+      - lure
+    conflicts:
+      - lure   
 aurs:
   - name: lure-bin
     homepage: 'https://gitea.arsenm.dev/Arsen6331/lure'
     description: "Linux User REpository"
     maintainers:
-      - 'Arsen Musyaelyan <arsen@arsenm.dev>'
+      - 'Arsen Musayelyan <arsen@arsenm.dev>'
     license: GPLv3
     private_key: '{{ .Env.AUR_KEY }}'
     git_url: 'ssh://aur@aur.archlinux.org/lure-bin.git'

.woodpecker.yml

@@ -0,0 +1,8 @@
+pipeline:
+  release:
+    image: goreleaser/goreleaser
+    commands:
+      - goreleaser release
+    secrets: [ gitea_token, aur_key ]
+    when:
+      event: tag

Makefile

@@ -1,4 +1,4 @@
-lure:
+lure: version.txt
 	go build
 
 clean:
@@ -10,4 +10,7 @@ install: lure
 uninstall:
 	rm -f /usr/local/bin/lure
 	
+version.txt:
+	go generate
+
 .PHONY: install clean uninstall

README.md

@@ -1,7 +1,7 @@
 # LURE (Linux User REpository)
 
 [![Go Report Card](https://goreportcard.com/badge/go.arsenm.dev/lure)](https://goreportcard.com/report/go.arsenm.dev/lure)
-[![Build status](https://ci.appveyor.com/api/projects/status/7anjwy7xcp4dxfu6?svg=true)](https://ci.appveyor.com/project/moussaelianarsen/lure)
+[![status-badge](https://ci.arsenm.dev/api/badges/Arsen6331/lure/status.svg)](https://ci.arsenm.dev/Arsen6331/lure)
 [![lure-bin AUR package](https://img.shields.io/aur/version/lure-bin?label=lure-bin&logo=archlinux)](https://aur.archlinux.org/packages/lure-bin/)
 
 LURE is intended to bring the AUR to all distros. It is currently in an ***alpha*** state and may not be stable. It can download a repository, build packages in it using a bash script similar to [PKGBUILD](https://wiki.archlinux.org/title/PKGBUILD), and then install them using your system package manager.

build.go

@@ -122,6 +122,9 @@ func buildPackage(ctx context.Context, script string, mgr manager.Manager) ([]st
 	var distroChanged bool
 	if distID, ok := os.LookupEnv("LURE_DISTRO"); ok {
 		info.ID = distID
+		// Since the distro was overwritten, we don't know what the
+		// like distros are, so set to nil
+		info.Like = nil
 		distroChanged = true
 	}
 
@@ -142,6 +145,7 @@ func buildPackage(ctx context.Context, script string, mgr manager.Manager) ([]st
 	runner, err := interp.New(
 		interp.Env(expand.ListEnviron(env...)),
 		interp.StdIO(os.Stdin, os.Stdout, os.Stderr),
+		interp.ExecHandler(helpers.ExecHandler),
 	)
 	if err != nil {
 		return nil, nil, err
@@ -160,6 +164,30 @@ func buildPackage(ctx context.Context, script string, mgr manager.Manager) ([]st
 		dec.LikeDistros = false
 	}
 
+	fn, ok := dec.GetFunc("version")
+	if ok {
+		log.Info("Executing version()").Send()
+
+		buf := &bytes.Buffer{}
+
+		err = fn(
+			ctx,
+			interp.Dir(filepath.Dir(script)),
+			interp.StdIO(os.Stdin, buf, os.Stderr),
+		)
+		if err != nil {
+			return nil, nil, err
+		}
+
+		newVer := strings.TrimSpace(buf.String())
+		err = setVersion(ctx, runner, newVer)
+		if err != nil {
+			return nil, nil, err
+		}
+
+		log.Info("Updating version").Str("new", newVer).Send()
+	}
+
 	var vars BuildVars
 	err = dec.DecodeVars(&vars)
 	if err != nil {
@@ -201,9 +229,21 @@ func buildPackage(ctx context.Context, script string, mgr manager.Manager) ([]st
 		return nil, nil, err
 	}
 
-	if len(vars.BuildDepends) > 0 {
+	installed, err := mgr.ListInstalled(nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var buildDeps []string
+	for _, pkgName := range vars.BuildDepends {
+		if _, ok := installed[pkgName]; !ok {
+			buildDeps = append(buildDeps, pkgName)
+		}
+	}
+
+	if len(buildDeps) > 0 {
 		log.Info("Installing build dependencies").Send()
-		installPkgs(ctx, vars.BuildDepends, mgr, false)
+		installPkgs(ctx, buildDeps, mgr, false)
 	}
 
 	var builtDeps, builtNames, repoDeps []string
@@ -230,12 +270,14 @@ func buildPackage(ctx context.Context, script string, mgr manager.Manager) ([]st
 		return nil, nil, err
 	}
 
-	err = setDirVars(ctx, runner, srcdir, pkgdir)
+	repodir := filepath.Dir(script)
+
+	err = setDirVars(ctx, runner, srcdir, pkgdir, repodir)
 	if err != nil {
 		return nil, nil, err
 	}
 
-	fn, ok := dec.GetFunc("prepare")
+	fn, ok = dec.GetFunc("prepare")
 	if ok {
 		log.Info("Executing prepare()").Send()
 
@@ -245,26 +287,6 @@ func buildPackage(ctx context.Context, script string, mgr manager.Manager) ([]st
 		}
 	}
 
-	fn, ok = dec.GetFunc("version")
-	if ok {
-		log.Info("Executing version()").Send()
-
-		buf := &bytes.Buffer{}
-
-		err = fn(
-			ctx,
-			interp.Dir(srcdir),
-			interp.StdIO(os.Stdin, buf, os.Stderr),
-		)
-		if err != nil {
-			return nil, nil, err
-		}
-
-		vars.Version = strings.TrimSpace(buf.String())
-
-		log.Info("Updating version").Str("new", vars.Version).Send()
-	}
-
 	fn, ok = dec.GetFunc("build")
 	if ok {
 		log.Info("Executing build()").Send()
@@ -418,7 +440,7 @@ func buildPackage(ctx context.Context, script string, mgr manager.Manager) ([]st
 		return nil, nil, err
 	}
 
-	if len(vars.BuildDepends) > 0 {
+	if len(buildDeps) > 0 {
 		var removeBuildDeps bool
 		err = survey.AskOne(&survey.Confirm{
 			Message: "Would you like to remove build dependencies?",
@@ -433,7 +455,7 @@ func buildPackage(ctx context.Context, script string, mgr manager.Manager) ([]st
 					AsRoot:    true,
 					NoConfirm: true,
 				},
-				vars.BuildDepends...,
+				buildDeps...,
 			)
 			if err != nil {
 				return nil, nil, err
@@ -448,14 +470,21 @@ func buildPackage(ctx context.Context, script string, mgr manager.Manager) ([]st
 
 func genBuildEnv(info *distro.OSRelease) []string {
 	env := os.Environ()
+
+	arch := runtime.GOARCH
+	if arch == "arm" {
+		arch = cpu.ARMVariant()
+	}
+
 	env = append(
 		env,
 		"DISTRO_NAME="+info.Name,
 		"DISTRO_PRETTY_NAME="+info.PrettyName,
 		"DISTRO_ID="+info.ID,
-		"DISTRO_BUILD_ID="+info.BuildID,
+		"DISTRO_VERSION_ID="+info.VersionID,
+		"DISTRO_ID_LIKE="+strings.Join(info.Like, " "),
 
-		"ARCH="+runtime.GOARCH,
+		"ARCH="+arch,
 		"NCPU="+strconv.Itoa(runtime.NumCPU()),
 	)
 
@@ -474,7 +503,7 @@ func getSources(ctx context.Context, srcdir string, bv *BuildVars) error {
 			EncloseGit:  true,
 		}
 
-		if bv.Checksums[i] != "SKIP" {
+		if !strings.EqualFold(bv.Checksums[i], "SKIP") {
 			checksum, err := hex.DecodeString(bv.Checksums[i])
 			if err != nil {
 				return err
@@ -493,8 +522,8 @@ func getSources(ctx context.Context, srcdir string, bv *BuildVars) error {
 
 // setDirVars sets srcdir and pkgdir. It's a very hacky way of doing so,
 // but setting the runner's Env and Vars fields doesn't seem to work.
-func setDirVars(ctx context.Context, runner *interp.Runner, srcdir, pkgdir string) error {
-	cmd := "srcdir='" + srcdir + "'\npkgdir='" + pkgdir + "'\n"
+func setDirVars(ctx context.Context, runner *interp.Runner, srcdir, pkgdir, repodir string) error {
+	cmd := "srcdir='" + srcdir + "'\npkgdir='" + pkgdir + "'\nrepodir='" + repodir + "'\n"
 	fl, err := syntax.NewParser().Parse(strings.NewReader(cmd), "vars")
 	if err != nil {
 		return err
@@ -580,6 +609,10 @@ func getBuildVars(ctx context.Context, script string, info *distro.OSRelease) (*
 }
 
 func archMatches(architectures []string) bool {
+	if slices.Contains(architectures, "all") {
+		return true
+	}
+
 	arch := runtime.GOARCH
 
 	if arch == "arm" {
@@ -593,6 +626,14 @@ func archMatches(architectures []string) bool {
 	return slices.Contains(architectures, arch)
 }
 
+func setVersion(ctx context.Context, r *interp.Runner, to string) error {
+	fl, err := syntax.NewParser().Parse(strings.NewReader("version='"+to+"'"), "")
+	if err != nil {
+		return err
+	}
+	return r.Run(ctx, fl)
+}
+
 func uniq(ss ...*[]string) {
 	for _, s := range ss {
 		slices.Sort(*s)

distro/osrelease.go

@@ -37,7 +37,7 @@ type OSRelease struct {
 	PrettyName       string
 	ID               string
 	Like             []string
-	BuildID          string
+	VersionID        string
 	ANSIColor        string
 	HomeURL          string
 	DocumentationURL string
@@ -86,7 +86,7 @@ func ParseOSRelease(ctx context.Context) (*OSRelease, error) {
 		Name:             runner.Vars["NAME"].Str,
 		PrettyName:       runner.Vars["PRETTY_NAME"].Str,
 		ID:               runner.Vars["ID"].Str,
-		BuildID:          runner.Vars["BUILD_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,

docs/build-scripts.md

@@ -31,6 +31,23 @@ LURE uses build scripts similar to the AUR's PKGBUILDs. This is the documentatio
     - [version](#version-1)
     - [build](#build)
     - [package](#package)
+- [Environment Variables](#environment-variables)
+    - [DISTRO_NAME](#distro_name)
+    - [DISTRO_PRETTY_NAME](#distro_pretty_name)
+    - [DISTRO_ID](#distro_id)
+    - [DISTRO_VERSION_ID](#distro_version_id)
+    - [ARCH](#arch)
+    - [NCPU](#ncpu)
+- [Helper Commands](#helper-commands)
+    - [install-binary](#install-binary)
+    - [install-systemd](#install-systemd)
+    - [install-systemd-user](#install-systemd-user)
+    - [install-config](#install-config)
+    - [install-license](#install-license)
+    - [install-completion](#install-completion)
+    - [install-manual](#install-manual)
+    - [install-desktop](#install-desktop)
+    - [install-library](#install-library)
 
 ---
 
@@ -223,17 +240,13 @@ The rest of the scripts are available in all packages.
 
 ## Functions
 
-Any variables marked with `(*)` are required
+This section documents user-defined functions that can be added to build scripts. Any functions marked with `(*)` are required.
 
-All functions start in the `$srcdir` directory
-
-### prepare
-
-The `prepare()` function runs first. It is meant to prepare the sources for building and packaging. This is the function in which patches should be applied, for example, by the `patch` command, and where tools like `go generate` should be executed.
+All functions except for `version()` are executed in the `$srcdir` directory
 
 ### version
 
-The `version()` function updates the `version` variable. This allows for automatically deriving the version from sources. This is most useful for git packages, which usually don't need to be changed, so their `version` variable stays the same.
+The `version()` function is the first to run. It updates the `version` variable. This allows for automatically deriving the version from sources. This is most useful for git packages, which usually don't need to be changed, so their `version` variable stays the same.
 
 An example of using this for git:
 
@@ -246,6 +259,12 @@ version() {
 
 The AUR equivalent is the [`pkgver()` function](https://wiki.archlinux.org/title/VCS_package_guidelines#The_pkgver()_function)
 
+This function does not run in `$srcdir` because it is executed before the source directory is even created. Instead, it runs in `$repodir`.
+
+### prepare
+
+The `prepare()` function is meant to prepare the sources for building and packaging. This is the function in which patches should be applied, for example, by the `patch` command, and where tools like `go generate` should be executed.
+
 ### build
 
 The `build()` function is where the package is actually built. Use the same commands that would be used to manually compile the software. Often, this function is just one line:
@@ -268,3 +287,184 @@ package() {
     install -Dm644 bin.cfg ${pkgdir}/etc/bin.cfg
 }
 ```
+
+---
+
+## Environment Variables
+ 
+LURE exposes several values as environment variables for use in build scripts.
+
+### DISTRO_NAME
+
+The `DISTRO_NAME` variable is the name of the distro as defined in its `os-release` file.
+
+For example, it's set to `Fedora Linux` in a Fedora 36 docker image
+
+### DISTRO_PRETTY_NAME
+
+The `DISTRO_PRETTY_NAME` variable is the "pretty" name of the distro as defined in its `os-release` file.
+
+For example, it's set to `Fedora Linux 36 (Container Image)` in a Fedora 36 docker image
+
+### DISTRO_ID
+
+The `DISTRO_ID` variable is the identifier of the distro as defined in its `os-release` file. This is the same as what LURE uses for overrides.
+
+For example, it's set to `fedora` in a Fedora 36 docker image
+
+### DISTRO_ID_LIKE
+
+The `DISTRO_ID_LIKE` variable contains identifiers of similar distros to the one running, separated by spaces.
+
+For example, it's set to `opensuse suse` in an OpenSUSE Tumbleweed docker image and `rhel fedora` in a CentOS 8 docker image.
+
+### DISTRO_VERSION_ID
+
+The `DISTRO_VERSION_ID` variable is the version identifier of the distro as defined in its `os-release` file.
+
+For example, it's set to `36` in a Fedora 36 docker image and `11` in a Debian Bullseye docker image
+
+### ARCH
+
+The `ARCH` variable is the architecture of the machine running the script. It uses the same naming convention as the values in the `architectures` array
+
+### NCPU
+
+The `NCPU` variable is the amount of CPUs available on the machine running the script. It will be set to `8` on a quad core machine with hyperthreading, for example.
+
+---
+
+## Helper Commands
+
+LURE provides various commands to help packagers create proper cross-distro packages. These commands should be used wherever possible instead of doing the tasks manually.
+
+### install-binary
+
+`install-binary` accepts 1-2 arguments. The first argument is the binary you'd like to install. The second is the filename that should be used.
+
+If the filename argument is not provided, tha name of the input file will be used.
+
+Examples:
+
+```bash
+install-binary ./itd
+install-binary ./itd itd-2
+```
+
+### install-systemd
+
+`install-systemd` installs regular systemd system services (see `install-systemd-user` for user services)
+
+It accepts 1-2 arguments. The first argument is the service you'd like to install. The second is the filename that should be used.
+
+If the filename argument is not provided, tha name of the input file will be used.
+
+Examples:
+
+```bash
+install-systemd ./syncthing@.service
+install-systemd-user ./syncthing@.service sync-thing@.service
+```
+
+### install-systemd-user
+
+`install-systemd-user` installs systemd user services (services like `itd` meant to be started with `--user`).
+
+It accepts 1-2 arguments. The first argument is the service you'd like to install. The second is the filename that should be used.
+
+If the filename argument is not provided, tha name of the input file will be used.
+
+Examples:
+
+```bash
+install-systemd-user ./itd.service
+install-systemd-user ./itd.service infinitime-daemon.service
+```
+
+### install-config
+
+`install-config` installs configuration files into the `/etc` directory
+
+It accepts 1-2 arguments. The first argument is the config you'd like to install. The second is the filename that should be used.
+
+If the filename argument is not provided, tha name of the input file will be used.
+
+Examples:
+
+```bash
+install-config ./itd.toml
+install-config ./itd.example.toml itd.toml
+```
+
+### install-license
+
+`install-license` installs a license file
+
+It accepts 1-2 arguments. The first argument is the config you'd like to install. The second is the filename that should be used.
+
+If the filename argument is not provided, tha name of the input file will be used.
+
+Examples:
+
+```bash
+install-license ./LICENSE itd/LICENSE
+```
+
+### install-completion
+
+`install-completion` installs shell completions
+
+It currently supports `bash`, `zsh`, and `fish`
+
+Completions are read from stdin, so they can either be piped in or retrieved from files
+
+Two arguments are required for this function. The first one is the name of the shell and the second is the name of the completion.
+
+Examples:
+
+```bash
+./k9s completion fish | install-completion fish k9s
+install-completion bash k9s <./k9s/completions/k9s.fish
+```
+
+### install-manual
+
+`install-manual` installs manpages. It accepts a single argument, which is the path to the manpage.
+
+The install path will be determined based on the number at the end of the filename. If a number cannot be extracted, an error will be returned.
+
+Examples:
+
+```bash
+install-manual ./man/strelaysrv.1
+install-manual ./mdoc.7
+```
+
+### install-desktop
+
+`install-desktop` installs desktop files for applications. It accepts 1-2 arguments. The first argument is the config you'd like to install. The second is the filename that should be used.
+
+If the filename argument is not provided, tha name of the input file will be used.
+
+Examples:
+
+```bash
+install-desktop ./${name}/share/admc.desktop
+install-desktop ./${name}/share/admc.desktop admc-app.desktop
+```
+
+### install-library
+
+`install-library` installs shared and static libraries to the correct location.
+
+This is the most important helper as it contains logic to figure out where to install libraries based on the target distro and CPU architecture. It should almost always be used to install all libraries.
+
+It accepts 1-2 arguments. The first argument is the config you'd like to install. The second is the filename that should be used.
+
+If the filename argument is not provided, tha name of the input file will be used.
+
+Examples:
+
+```bash
+install-library ./${name}/build/libadldap.so
+```

download/download.go

@@ -227,6 +227,11 @@ func extractFile(ctx context.Context, input io.Reader, hash hash.Hash, format ar
 				return err
 			}
 			defer fr.Close()
+			fi, err := f.Stat()
+			if err != nil {
+				return err
+			}
+			fm := fi.Mode()
 
 			path := filepath.Join(opts.Destination, f.NameInArchive)
 
@@ -241,7 +246,7 @@ func extractFile(ctx context.Context, input io.Reader, hash hash.Hash, format ar
 					return err
 				}
 			} else {
-				outFl, err := os.Create(path)
+				outFl, err := os.OpenFile(path, os.O_RDWR|os.O_CREATE|os.O_TRUNC, fm.Perm())
 				if err != nil {
 					return err
 				}

helpers.go

@@ -0,0 +1,212 @@
+package main
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+	"unsafe"
+
+	"go.arsenm.dev/lure/internal/shutils"
+	"golang.org/x/exp/slices"
+	"mvdan.cc/sh/v3/interp"
+)
+
+var (
+	ErrNoPipe         = errors.New("command requires data to be piped in")
+	ErrNoDetectManNum = errors.New("manual number cannot be detected from the filename")
+)
+
+var helpers = shutils.ExecFuncs{
+	"install-binary":       installHelperCmd("/usr/bin", 0o755),
+	"install-systemd-user": installHelperCmd("/usr/lib/systemd/user", 0o644),
+	"install-systemd":      installHelperCmd("/usr/lib/systemd/system", 0o644),
+	"install-config":       installHelperCmd("/etc", 0o644),
+	"install-license":      installHelperCmd("/usr/share/licenses", 0o644),
+	"install-desktop":      installHelperCmd("/usr/share/applications", 0o644),
+	"install-manual":       installManualCmd,
+	"install-completion":   installCompletionCmd,
+	"install-library":      installLibraryCmd,
+}
+
+func installHelperCmd(prefix string, perms os.FileMode) shutils.ExecFunc {
+	return func(hc interp.HandlerContext, cmd string, args []string) error {
+		if len(args) < 1 {
+			return shutils.InsufficientArgsError(cmd, 1, len(args))
+		}
+
+		from := args[0]
+		to := ""
+		if len(args) > 1 {
+			to = filepath.Join(hc.Env.Get("pkgdir").Str, prefix, args[1])
+		} else {
+			to = filepath.Join(hc.Env.Get("pkgdir").Str, prefix, filepath.Base(from))
+		}
+
+		err := helperInstall(from, to, perms)
+		if err != nil {
+			return fmt.Errorf("%s: %w", cmd, err)
+		}
+		return nil
+	}
+}
+
+func installManualCmd(hc interp.HandlerContext, cmd string, args []string) error {
+	if len(args) < 1 {
+		return shutils.InsufficientArgsError(cmd, 1, len(args))
+	}
+
+	from := args[0]
+	number := filepath.Base(from)
+	// The man page may be compressed with gzip.
+	// If it is, the .gz extension must be removed to properly
+	// detect the number at the end of the filename.
+	number = strings.TrimSuffix(number, ".gz")
+	number = strings.TrimPrefix(filepath.Ext(number), ".")
+
+	// If number is not actually a number, return an error
+	if _, err := strconv.Atoi(number); err != nil {
+		return fmt.Errorf("install-manual: %w", ErrNoDetectManNum)
+	}
+
+	prefix := "/usr/share/man/man" + number
+	to := filepath.Join(hc.Env.Get("pkgdir").Str, prefix, filepath.Base(from))
+
+	return helperInstall(from, to, 0o644)
+}
+
+func installCompletionCmd(hc interp.HandlerContext, cmd string, args []string) error {
+	// If the command's stdin is the same as the system's,
+	// that means nothing was piped in. In this case, return an error.
+	if hc.Stdin == os.Stdin {
+		return fmt.Errorf("install-completion: %w", ErrNoPipe)
+	}
+
+	if len(args) < 2 {
+		return shutils.InsufficientArgsError(cmd, 2, len(args))
+	}
+
+	shell := args[0]
+	name := args[1]
+
+	var prefix string
+	switch shell {
+	case "bash":
+		prefix = "/usr/share/bash-completion/completion"
+	case "zsh":
+		prefix = "/usr/share/zsh/site-functions"
+		name = "_" + name
+	case "fish":
+		prefix = "/usr/share/fish/vendor_completions.d"
+		name += ".fish"
+	}
+
+	path := filepath.Join(hc.Env.Get("pkgdir").Str, prefix, name)
+
+	err := os.MkdirAll(filepath.Dir(path), 0o755)
+	if err != nil {
+		return err
+	}
+
+	dst, err := os.OpenFile(path, os.O_TRUNC|os.O_CREATE|os.O_RDWR, 0o644)
+	if err != nil {
+		return err
+	}
+	defer dst.Close()
+
+	_, err = io.Copy(dst, hc.Stdin)
+	return err
+}
+
+func installLibraryCmd(hc interp.HandlerContext, cmd string, args []string) error {
+	prefix := getLibPrefix(hc)
+	fn := installHelperCmd(prefix, 0o755)
+	return fn(hc, cmd, args)
+}
+
+// See https://wiki.debian.org/Multiarch/Tuples
+var multiarchTupleMap = map[string]string{
+	"386":      "i386-linux-gnu",
+	"amd64":    "x86_64-linux-gnu",
+	"arm5":     "arm-linux-gnueabi",
+	"arm6":     "arm-linux-gnueabihf",
+	"arm7":     "arm-linux-gnueabihf",
+	"arm64":    "aarch64-linux-gnu",
+	"mips":     "mips-linux-gnu",
+	"mipsle":   "mipsel-linux-gnu",
+	"mips64":   "mips64-linux-gnuabi64",
+	"mips64le": "mips64el-linux-gnuabi64",
+	"ppc64":    "powerpc64-linux-gnu",
+	"ppc64le":  "powerpc64le-linux-gnu",
+	"s390x":    "s390x-linux-gnu",
+	"riscv64":  "riscv64-linux-gnu",
+	"loong64":  "loongarch64-linux-gnu",
+}
+
+// usrLibDistros is a list of distros that don't support
+// /usr/lib64, and must use /usr/lib
+var usrLibDistros = []string{
+	"arch",
+	"alpine",
+	"void",
+	"chimera",
+}
+
+// Based on CMake's GNUInstallDirs
+func getLibPrefix(hc interp.HandlerContext) string {
+	if dir, ok := os.LookupEnv("LURE_LIB_DIR"); ok {
+		return dir
+	}
+
+	out := "/usr/lib"
+
+	distroID := hc.Env.Get("DISTRO_ID").Str
+	distroLike := strings.Split(hc.Env.Get("DISTRO_ID_LIKE").Str, " ")
+
+	for _, usrLibDistro := range usrLibDistros {
+		if distroID == usrLibDistro || slices.Contains(distroLike, usrLibDistro) {
+			return out
+		}
+	}
+
+	wordSize := unsafe.Sizeof(uintptr(0))
+	if wordSize == 8 {
+		out = "/usr/lib64"
+	}
+
+	architecture := hc.Env.Get("ARCH").Str
+
+	if distroID == "debian" || slices.Contains(distroLike, "debian") {
+		triple, ok := multiarchTupleMap[architecture]
+		if ok {
+			out = filepath.Join("/usr/lib", triple)
+		}
+	}
+
+	return out
+}
+
+func helperInstall(from, to string, perms os.FileMode) error {
+	err := os.MkdirAll(filepath.Dir(to), 0o755)
+	if err != nil {
+		return err
+	}
+
+	src, err := os.Open(from)
+	if err != nil {
+		return err
+	}
+	defer src.Close()
+
+	dst, err := os.OpenFile(to, os.O_TRUNC|os.O_CREATE|os.O_RDWR, perms)
+	if err != nil {
+		return err
+	}
+	defer dst.Close()
+
+	_, err = io.Copy(dst, src)
+	return err
+}

internal/shutils/exec.go

@@ -20,21 +20,34 @@ package shutils
 
 import (
 	"context"
+	"fmt"
 	"time"
 
 	"mvdan.cc/sh/v3/interp"
 )
 
-type ExecFuncs map[string]func(interp.HandlerContext, []string) uint8
+func InsufficientArgsError(cmd string, exp, got int) error {
+	argsWord := "arguments"
+	if exp == 1 {
+		argsWord = "argument"
+	}
+
+	return fmt.Errorf("%s: command requires at least %d %s, got %d", cmd, exp, argsWord, got)
+}
+
+type ExecFunc func(hc interp.HandlerContext, name string, args []string) error
+
+type ExecFuncs map[string]ExecFunc
 
 func (ef ExecFuncs) ExecHandler(ctx context.Context, args []string) error {
 	name := args[0]
 
 	if fn, ok := ef[name]; ok {
 		hctx := interp.HandlerCtx(ctx)
-		ec := fn(hctx, args)
-		if ec != 0 {
-			return interp.NewExitStatus(ec)
+		if len(args) > 1 {
+			return fn(hctx, args[0], args[1:])
+		} else {
+			return fn(hctx, args[0], nil)
 		}
 	}
 

main.go

@@ -128,6 +128,11 @@ func main() {
 				Aliases: []string{"ref"},
 				Action:  refreshCmd,
 			},
+			{
+				Name:   "version",
+				Usage:  "Display the current LURE version and exit",
+				Action: displayVersion,
+			},
 		},
 	}
 
@@ -136,3 +141,8 @@ func main() {
 		log.Error("Error while running app").Err(err).Send()
 	}
 }
+
+func displayVersion(c *cli.Context) error {
+	print(version)
+	return nil
+}

manager/dnf.go

@@ -137,6 +137,7 @@ func (d *DNF) ListInstalled(opts *Opts) (map[string]string, error) {
 		if !ok {
 			continue
 		}
+		version = strings.TrimPrefix(version, "0:")
 		out[name] = version
 	}
 

manager/yum.go

@@ -137,6 +137,7 @@ func (y *YUM) ListInstalled(opts *Opts) (map[string]string, error) {
 		if !ok {
 			continue
 		}
+		version = strings.TrimPrefix(version, "0:")
 		out[name] = version
 	}
 

manager/zypper.go

@@ -137,6 +137,7 @@ func (z *Zypper) ListInstalled(opts *Opts) (map[string]string, error) {
 		if !ok {
 			continue
 		}
+		version = strings.TrimPrefix(version, "0:")
 		out[name] = version
 	}
 

repo.go

@@ -41,6 +41,12 @@ func (p PkgNotFoundError) Error() string {
 	return "package '" + p.pkgName + "' could not be found in any repository"
 }
 
+type RepoConfig struct {
+	Repo struct {
+		MinVersion string `toml:"minVersion"`
+	}
+}
+
 func addrepoCmd(c *cli.Context) error {
 	name := c.String("name")
 	repoURL := c.String("url")
@@ -146,7 +152,9 @@ func findPkg(pkg string) ([]string, error) {
 func pkgPrompt(options []string) ([]string, error) {
 	names := make([]string, len(options))
 	for i, option := range options {
-		names[i] = filepath.Base(filepath.Dir(option))
+		pkgDir := filepath.Dir(option)
+		repoDir := filepath.Dir(pkgDir)
+		names[i] = filepath.Base(repoDir) + "/" + filepath.Base(pkgDir)
 	}
 
 	prompt := &survey.MultiSelect{
@@ -221,6 +229,26 @@ func pullRepos(ctx context.Context) error {
 			} else if err != nil {
 				return err
 			}
+
+			fl, err := w.Filesystem.Open("lure-repo.toml")
+			if err != nil {
+				log.Warn("Git repository does not appear to be a valid LURE repo").Str("repo", repo.Name).Send()
+				continue
+			}
+
+			var repoCfg RepoConfig
+			err = toml.NewDecoder(fl).Decode(&repoCfg)
+			if err != nil {
+				return err
+			}
+			fl.Close()
+
+			currentVer, _, _ := strings.Cut(version, "-")
+			if vercmp(currentVer, repoCfg.Repo.MinVersion) == -1 {
+				log.Warn("LURE repo's minumum LURE version is greater than the current version. Try updating LURE if something doesn't work.").Str("repo", repo.Name).Send()
+			}
+
+			continue
 		}
 
 		err = os.RemoveAll(repoDir)
@@ -244,6 +272,23 @@ func pullRepos(ctx context.Context) error {
 		if err != nil {
 			return err
 		}
+
+		fl, err := os.Open(filepath.Join(repoDir, "lure-repo.toml"))
+		if err != nil {
+			log.Warn("Git repository does not appear to be a valid LURE repo").Str("repo", repo.Name).Send()
+		}
+
+		var repoCfg RepoConfig
+		err = toml.NewDecoder(fl).Decode(&repoCfg)
+		if err != nil {
+			return err
+		}
+		fl.Close()
+
+		currentVer, _, _ := strings.Cut(version, "-")
+		if vercmp(currentVer, repoCfg.Repo.MinVersion) == -1 {
+			log.Warn("LURE repo's minumum LURE version is greater than the current version. Try updating LURE if something doesn't work.").Str("repo", repo.Name).Send()
+		}
 	}
 
 	return nil

scripts/gen-version.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+
+git describe --tags > version.txt

version.go

@@ -19,12 +19,18 @@
 package main
 
 import (
+	_ "embed"
 	"strconv"
 	"strings"
 
 	"golang.org/x/exp/slices"
 )
 
+//go:generate scripts/gen-version.sh
+
+//go:embed version.txt
+var version string
+
 // vercmp compares two version strings.
 // It returns 1 if v1 is greater,
 // 0 if the versions are equal,