Add make script

1 files changed, 153 insertions, 0 deletions

diff --git a/make.c b/make.c
new file mode 100644
index 0000000..3be57c2
--- /dev/null
+++ b/make.c
@@ -0,0 +1,153 @@
+#define _GNU_SOURCE
+#include <errno.h>
+#include <glob.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define CBS_PTHREAD
+#include "cbs.h"
+
+#define CC         "gcc"
+#define CFLAGS_ALL WARNINGS, "-pipe", "-std=c23", "-Iinclude"
+#define CFLAGS_DBG CFLAGS_ALL, "-g", "-ggdb3", "-Og"
+#ifdef __APPLE__
+#	define CFLAGS_RLS CFLAGS_ALL, "-O3", "-flto"
+#else
+#	define CFLAGS_RLS \
+		CFLAGS_ALL, "-O3", "-flto", "-march=native", "-mtune=native"
+#endif
+#define LIBNAME "libmlib"
+#define WARNINGS \
+	"-Wall", "-Wextra", "-Wpedantic", "-Werror", "-Wno-attributes", \
+		"-Wno-pointer-sign"
+
+#define CMDPRC(c) \
+	do { \
+		int ec; \
+		cmdput(c); \
+		if ((ec = cmdexec(c)) != EXIT_SUCCESS) \
+			diex("%s terminated with exit-code %d", *(c)._argv, ec); \
+		cmdclr(&(c)); \
+	} while (false)
+
+#define flagset(o)  (flags & (1 << ((o) - 'a')))
+#define streq(x, y) (!strcmp(x, y))
+
+static int globerr(const char *, int);
+static void work(void *);
+
+static unsigned long flags;
+
+int
+main(int argc, char **argv)
+{
+	int opt, procs = -1;
+
+	cbsinit(argc, argv);
+	rebuild();
+
+	while ((opt = getopt(argc, argv, "fj:r")) != -1) {
+		switch (opt) {
+		case '?':
+			fprintf(stderr, "Usage: %s [-j procs] [-fr]\n", *argv);
+			exit(EXIT_FAILURE);
+		case 'j':
+			procs = atoi(optarg);
+			break;
+		default:
+			flags |= 1 << (opt - 'a');
+		}
+	}
+
+	argc -= optind;
+	argv += optind;
+
+	if (argc >= 1) {
+		if (!streq(*argv, "clean")) {
+			diex("invalid subcommand — ‘%s’", *argv);
+			exit(EXIT_FAILURE);
+		}
+		cmd_t c = {};
+		cmdadd(&c, "find", ".", "(", "-name", "*.[ao]", "-or", "-name", "*.so",
+		       ")", "-delete");
+		CMDPRC(c);
+	} else {
+		cmd_t c = {};
+		glob_t g;
+		tpool_t tp;
+
+		if (glob("lib/*/*.c", 0, globerr, &g))
+			die("glob");
+
+		if (procs == -1 && (procs = nproc()) == -1) {
+			if (errno)
+				die("nproc");
+			procs = 8;
+		}
+
+		tpinit(&tp, procs);
+		for (size_t i = 0; i < g.gl_pathc; i++)
+			tpenq(&tp, work, g.gl_pathv[i], nullptr);
+		tpwait(&tp);
+		tpfree(&tp);
+
+		for (size_t i = 0; i < g.gl_pathc; i++)
+			g.gl_pathv[i][strlen(g.gl_pathv[i]) - 1] = 'o';
+
+		if (flagset('f')
+		    || foutdatedv(LIBNAME ".a", (const char **)g.gl_pathv, g.gl_pathc))
+		{
+			cmdadd(&c, "ar", "rcs", LIBNAME ".a");
+			cmdaddv(&c, g.gl_pathv, g.gl_pathc);
+			CMDPRC(c);
+		}
+
+		if (flagset('f')
+		    || foutdatedv(LIBNAME ".so", (const char **)g.gl_pathv, g.gl_pathc))
+		{
+			struct strv sv = {};
+			env_or_default(&sv, "CC", CC);
+			cmdaddv(&c, sv.buf, sv.len);
+			cmdadd(&c, "-shared", "-o", LIBNAME ".so");
+			cmdaddv(&c, g.gl_pathv, g.gl_pathc);
+			CMDPRC(c);
+		}
+
+		globfree(&g);
+	}
+
+	return EXIT_SUCCESS;
+}
+
+void
+work(void *p)
+{
+	char *dst, *src = p;
+	cmd_t c = {};
+	struct strv sv = {};
+
+	if (!(dst = strdup(src)))
+		die("strdup");
+	dst[strlen(dst) - 1] = 'o';
+
+	if (flagset('f') || foutdated(dst, src)) {
+		env_or_default(&sv, "CC", CC);
+		if (flagset('r'))
+			env_or_default(&sv, "CFLAGS", CFLAGS_RLS);
+		else
+			env_or_default(&sv, "CFLAGS", CFLAGS_DBG);
+		cmdaddv(&c, sv.buf, sv.len);
+		cmdadd(&c, "-Iinclude", "-fPIC", "-o", dst, "-c", src);
+		CMDPRC(c);
+	}
+
+	free(dst);
+}
+
+int
+globerr(const char *s, int e)
+{
+	errno = e;
+	die("glob: %s", s);
+}