formula: add rscada/libmbus

.github/workflows/test.yml

@@ -116,7 +116,7 @@ jobs:
 
       - name: Install macOS build dependencies
         if: runner.os == 'macOS'
-        run: brew install autoconf automake gperf groff
+        run: brew install autoconf automake libtool gperf groff
 
       - name: Set up Go
         uses: actions/setup-go@v7

rscada/libmbus/0.10.2/libmbus_llar.gox

@@ -0,0 +1,125 @@
+import (
+	"os"
+	"path/filepath"
+)
+
+const consumerSource = `#include <mbus/mbus.h>
+#include <string.h>
+
+int main(void) {
+    unsigned char ack = 0xE5;
+    mbus_frame frame;
+    mbus_handle *handle;
+
+    memset(&frame, 0, sizeof(frame));
+    if (mbus_parse(&frame, &ack, 1) != 0) {
+        return 1;
+    }
+    if (mbus_get_current_version() == 0) {
+        return 1;
+    }
+
+    handle = mbus_context_serial("/dev/null");
+    if (handle == 0) {
+        return 1;
+    }
+    mbus_context_free(handle);
+    return 0;
+}
+`
+
+id "rscada/libmbus"
+
+fromVer "0.10.2"
+
+defaults {
+	"shared": "OFF",
+	"fPIC": "ON",
+}
+
+filter => {
+	for name, values in target.options {
+		if name != "shared" && name != "fPIC" {
+			return false
+		}
+		for value in values {
+			if value != "ON" && value != "OFF" {
+				return false
+			}
+		}
+	}
+	return true
+}
+
+onBuild ctx => {
+	installDir := ctx.outputDir
+	shared := target.options["shared"][0] == "ON"
+	fPIC := target.options["fPIC"][0] == "ON"
+
+	os.chdir(ctx.SourceDir)!
+	os.mkdirAll(filepath.join(ctx.SourceDir, "m4"), 0o755)!
+
+	// GNU libtoolize is `libtoolize` on Linux and `glibtoolize` on Homebrew
+	// Darwin. Host package managers are not part of the formula.
+	if exec("libtoolize", "--copy", "--force") != nil {
+		glibtoolize! "--copy", "--force"
+	}
+	autoreconf! "-fi"
+
+	picFlag := "--without-pic"
+	if fPIC {
+		picFlag = "--with-pic"
+	}
+
+	a := autotools.new(ctx.SourceDir, filepath.join(ctx.SourceDir, "_build"), installDir)
+	if shared {
+		a.configure "--enable-shared", "--disable-static", picFlag
+	} else {
+		a.configure "--disable-shared", "--enable-static", picFlag
+	}
+	a.build
+	a.install
+
+	licenseDir := filepath.join(installDir, "licenses")
+	os.mkdirAll(licenseDir, 0o755)!
+	os.writeFile(filepath.join(licenseDir, "LICENSE"), os.readFile(filepath.join(ctx.SourceDir, "LICENSE"))!, 0o644)!
+
+	pcDir := filepath.join(installDir, "lib", "pkgconfig")
+	os.mkdirAll(pcDir, 0o755)!
+	pc := pkgconfig.new(
+		name = "libmbus",
+		description = "Open source M-bus (Meter-Bus) library.",
+		version = "0.10.2",
+		URL = "http://www.rscada.se/libmbus/",
+		libs = ["-L$${libdir}", "-lmbus", "-lm"],
+		cflags = ["-I$${includedir}"],
+	)!
+	out := os.create(filepath.join(pcDir, "libmbus.pc"))!
+	pc.writeTo(out)!
+	out.close()!
+
+	pkgconfig.use installDir
+	ctx.setMetadata pkgconfig.lookup("libmbus")!
+}
+
+onTest ctx => {
+	installDir := ctx.outputDir
+	testDir := filepath.join(ctx.SourceDir, "_llar_consumer")
+	os.mkdirAll(testDir, 0o755)!
+
+	sourcePath := filepath.join(testDir, "consumer.c")
+	os.writeFile(sourcePath, []byte(consumerSource), 0o644)!
+
+	pkgconfig.use installDir
+	flagsFile := filepath.join(testDir, "libmbus.flags")
+	os.writeFile(flagsFile, []byte(pkgconfig.lookup("libmbus")!), 0o644)!
+
+	binary := filepath.join(testDir, "consumer")
+	cc! sourcePath, "-o", binary, "@"+flagsFile
+
+	if target.options["shared"][0] == "ON" {
+		os.setenv("LD_LIBRARY_PATH", filepath.join(installDir, "lib"))!
+		os.setenv("DYLD_LIBRARY_PATH", filepath.join(installDir, "lib"))!
+	}
+	exec! binary
+}

rscada/libmbus/libmbus_cmp.gox

@@ -0,0 +1,12 @@
+import "strings"
+
+func normalize(version string) string {
+	if strings.hasPrefix(version, "v") {
+		return version
+	}
+	return "v" + version
+}
+
+compareVer (a, b) => {
+	return semver.Compare(normalize(a.Version), normalize(b.Version))
+}

rscada/libmbus/versions.json

@@ -0,0 +1,4 @@
+{
+  "path": "rscada/libmbus",
+  "deps": {}
+}