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-rw-r--r--make.c294
1 files changed, 153 insertions, 141 deletions
diff --git a/make.c b/make.c
index cbbb6a2..8cc8532 100644
--- a/make.c
+++ b/make.c
@@ -1,185 +1,197 @@
-#if __STDC_VERSION__ < 202000L
-# error "C23 is required to build"
-#endif
-
#define _GNU_SOURCE
#include <errno.h>
-#include <getopt.h>
-#include <limits.h>
+#include <glob.h>
+#include <langinfo.h>
+#include <libgen.h>
+#include <locale.h>
+#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
+#if __has_include(<features.h>)
+# include <features.h>
+#endif
+
#include "cbs.h"
-#define CC "cc"
-#define WARNINGS \
- "-Wall", "-Wextra", "-Wpedantic", "-Werror", "-Wno-parentheses", \
- "-Wno-pointer-sign", "-Wno-attributes"
-#define CFLAGS_ALL WARNINGS, "-pipe", "-std=c2x"
-#define CFLAGS_DBG CFLAGS_ALL, "-DGRAB_DEBUG", "-Og", "-g", "-ggdb3"
-#ifdef __APPLE__
-# define CFLAGS_RLS CFLAGS_ALL, "-O3"
+#define flagset(o) (flags & UINT32_C(1)<<(o)-'a')
+
+[[noreturn, gnu::format(printf, 1, 2)]]
+static void err(const char *, ...);
+static void build_mlib(void);
+
+static uint32_t flags;
+static const char *argv0;
+
+static char *cflags_req[] = {
+ "-Wall",
+ "-Wextra",
+ "-Wpedantic",
+ "-Wvla",
+ "-Wno-attributes",
+ "-Wno-empty-body", /* Annoying when debugging */
+ "-Wno-pointer-sign",
+ "-Wno-parentheses",
+ "-Ivendor/mlib/include",
+ "-pipe",
+ "-std=c23",
+#ifdef __GLIBC__
+ "-D_GNU_SOURCE",
+#endif
+ "-DPCRE2_CODE_UNIT_WIDTH=8",
+};
+
+static char *cflags_dbg[] = {
+ "-DDEBUG=1",
+ "-fsanitize=address,undefined",
+#if __GNUC__ && __APPLE__
+ "-ggdb2",
#else
-# define CFLAGS_RLS CFLAGS_ALL, "-O3", "-march=native", "-mtune=native"
+ "-ggdb3",
#endif
-#define PREFIX "/usr/local"
-
-#define streq(a, b) (!strcmp(a, b))
-#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 (0)
+ "-O0",
+};
-#define FLAGMSK(f) ((uint64_t)1 << ((f) - ((f) < 'a' ? 'A' : 'G')))
-#define FLAGSET(f) (flags & FLAGMSK(f))
-
-static char *mkoutpath(const char *);
-
-static uint64_t flags;
+static char *cflags_rls[] = {
+ "-DNDEBUG=1",
+ "-flto",
+#ifdef __APPLE__
+ "-mcpu=native",
+#else
+ "-march=native",
+ "-mtune=native",
+#endif
+ "-O3",
+};
int
main(int argc, char **argv)
{
- int opt;
- cmd_t c = {0};
- struct option longopts[] = {
- {"force", no_argument, nullptr, 'f'},
- {"lto", no_argument, nullptr, 'l'},
- {"no-pcre", no_argument, nullptr, 'P'},
- {"release", no_argument, nullptr, 'r'},
- {nullptr, 0, nullptr, 0 },
- };
-
cbsinit(argc, argv);
rebuild();
+ setlocale(LC_ALL, "");
+
+ argv0 = basename(argv[0]);
- while ((opt = getopt_long(argc, argv, "flPr", longopts, nullptr)) != -1) {
+ int opt;
+ while ((opt = getopt(argc, argv, "mr")) != -1) {
switch (opt) {
case '?':
- fputs("Usage: make [-flPd]\n", stderr);
+usage:
+ fprintf(stderr,
+ "Usage: %s [-mr]\n"
+ " %s clean | distclean\n",
+ *argv, *argv);
exit(EXIT_FAILURE);
default:
- flags |= FLAGMSK(opt);
+ flags |= UINT32_C(1) << opt-'a';
}
}
argc -= optind;
argv += optind;
- if (argc > 0) {
- if (streq(*argv, "clean")) {
- cmdadd(&c, "find", ".", "-name", "grab", "-or", "-name", "git-grab",
- "-or", "-name", "*.[ao]", "-delete");
- CMDPRC(c);
- } else if (streq(*argv, "install")) {
- char *bin, *man;
- bin = mkoutpath("/bin");
- man = mkoutpath("/share/man/man1");
- cmdadd(&c, "mkdir", "-p", bin, man);
- CMDPRC(c);
- if (binexists("strip")) {
- cmdadd(&c, "strip", "--strip-all", "grab", "git-grab");
- CMDPRC(c);
+ if (argc > 1)
+ goto usage;
+
+ if (argc == 1) {
+ struct strs cmd = {};
+ if (strcmp(argv[0], "clean") == 0) {
+ strspushl(&cmd, "rm", "-f", "grab", "git-grab");
+ } else if (strcmp(argv[0], "distclean") == 0) {
+ strspushl(&cmd, "rm", "-f", "grab", "git-grab", "make");
+ if (fexists("vendor/mlib/make")) {
+ cmdput(cmd);
+ if (cmdexec(cmd) != EXIT_SUCCESS)
+ exit(EXIT_FAILURE);
+ strszero(&cmd);
+ strspushl(&cmd, "vendor/mlib/make", "clean");
}
- cmdadd(&c, "cp", "grab", "git-grab", bin);
- CMDPRC(c);
- cmdadd(&c, "cp", "man/grab.1", "man/git-grab.1", man);
- CMDPRC(c);
- }
- } else {
- cmd_t c = {0};
- struct strv sv = {0};
-
- if (FLAGSET('f')
- || foutdated("vendor/librune/make", "vendor/librune/make.c"))
- {
- cmdadd(&c, CC, "-lpthread", "-o", "vendor/librune/make",
- "vendor/librune/make.c");
- CMDPRC(c);
+ } else {
+ err(strcmp(nl_langinfo(CODESET), "UTF-8") == 0
+ ? "invalid subcommand — ‘%s’"
+ : "invalid subcommand -- `%s'",
+ argv[0]);
}
- if (FLAGSET('f') || !fexists("vendor/librune/librune.a")) {
- cmdadd(&c, "vendor/librune/make");
- if (FLAGSET('f'))
- cmdadd(&c, "-f");
- if (FLAGSET('r'))
- cmdadd(&c, "-r");
- if (FLAGSET('l'))
- cmdadd(&c, "-l");
- CMDPRC(c);
- }
+ cmdput(cmd);
+ return cmdexec(cmd);
+ }
- if (FLAGSET('f')
- || foutdated("./grab", "src/grab.c", "src/da.h",
- "vendor/librune/librune.a"))
- {
- env_or_default(&sv, "CC", CC);
- if (FLAGSET('r'))
- env_or_default(&sv, "CFLAGS", CFLAGS_RLS);
- else
- env_or_default(&sv, "CFLAGS", CFLAGS_DBG);
-
- for (int i = 0; i < 2; i++) {
- char buf[] = "-DGIT_GRAB=X";
- buf[sizeof(buf) - 2] = i + '0';
-
- cmdaddv(&c, sv.buf, sv.len);
- if (FLAGSET('l'))
- cmdadd(&c, "-flto");
-#ifdef __GLIBC__
- cmdadd(&c, "-D_POSIX_C_SOURCE=200809L");
-#endif
- cmdadd(&c, "-Ivendor/librune/include", buf);
- if (!FLAGSET('P')) {
- struct strv pc = {0};
- cmdadd(&c, "-DGRAB_DO_PCRE=1");
- if (pcquery(&pc, "libpcre2-posix", PKGC_CFLAGS | PKGC_LIBS))
- cmdaddv(&c, pc.buf, pc.len);
- else
- cmdadd(&c, "-lpcre2-posix");
- strvfree(&pc);
- }
- cmdadd(&c, "-o", i == 0 ? "grab" : "git-grab", "src/grab.c",
- "vendor/librune/librune.a");
- CMDPRC(c);
- }
+ build_mlib();
+
+ glob_t g;
+ if (glob("src/*.c", 0, nullptr, &g))
+ err("glob:");
+
+ struct strs cmd = {};
+ for (char ch = '0'; ch <= '1'; ch++) {
+ strspushenvl(&cmd, "CC", "cc");
+ strspush(&cmd, cflags_req, lengthof(cflags_req));
+ if (flagset('r'))
+ strspushenv(&cmd, "CFLAGS", cflags_rls, lengthof(cflags_rls));
+ else
+ strspushenv(&cmd, "CFLAGS", cflags_dbg, lengthof(cflags_dbg));
+
+ char buf[] = "-DGIT_GRAB=X";
+ buf[sizeof(buf) - 2] = ch;
+ strspushl(&cmd, buf);
+
+ if (!pcquery(&cmd, "libpcre2-8", PC_CFLAGS | PC_LIBS))
+ strspushl(&cmd, "-lpcre2-8");
+
+ strspushl(&cmd, "-o", ch == '0' ? "grab" : "git-grab");
+ strspush(&cmd, g.gl_pathv, g.gl_pathc);
+ strspushl(&cmd, "vendor/mlib/libmlib.a");
+ cmdput(cmd);
+ if (cmdexec(cmd) != EXIT_SUCCESS)
+ exit(EXIT_FAILURE);
- strvfree(&sv);
- }
+ strszero(&cmd);
}
return EXIT_SUCCESS;
}
-char *
-mkoutpath(const char *s)
+void
+build_mlib(void)
{
- char *p, *buf;
-
- buf = bufalloc(NULL, PATH_MAX, sizeof(char));
- buf[0] = 0;
-
- if (p = getenv("DESTDIR"), p && *p) {
- if (strlcat(buf, p, PATH_MAX) >= PATH_MAX)
- goto toolong;
+ struct strs cmd = {};
+ if (flagset('m') || !fexists("vendor/mlib/make")) {
+ strspushenvl(&cmd, "CC", "cc");
+ strspushl(&cmd, "-std=c23", "-o", "vendor/mlib/make", "vendor/mlib/make.c");
+ cmdput(cmd);
+ if (cmdexec(cmd) != EXIT_SUCCESS)
+ exit(EXIT_FAILURE);
+ strszero(&cmd);
}
+ strspushl(&cmd, "./vendor/mlib/make");
+ if (flagset('m'))
+ strspushl(&cmd, "-f");
+ if (flagset('r'))
+ strspushl(&cmd, "-r");
+ cmdput(cmd);
+ if (cmdexec(cmd) != EXIT_SUCCESS)
+ exit(EXIT_FAILURE);
+ strsfree(&cmd);
+}
- p = getenv("PREFIX");
- if (strlcat(buf, p && *p ? p : PREFIX, PATH_MAX) >= PATH_MAX)
- goto toolong;
- if (strlcat(buf, s, PATH_MAX) >= PATH_MAX)
- goto toolong;
-
- return buf;
-
-toolong:
- errno = ENAMETOOLONG;
- die(__func__);
+void
+err(const char *fmt, ...)
+{
+ va_list ap;
+ va_start(ap, fmt);
+ int save = errno;
+ flockfile(stderr);
+ fprintf(stderr, "%s: ", argv0);
+ vfprintf(stderr, fmt, ap);
+ if (fmt[strlen(fmt) - 1] == ':')
+ fprintf(stderr, " %s", strerror(save));
+ fputc('\n', stderr);
+ funlockfile(stderr);
+ va_end(ap);
+ exit(EXIT_FAILURE);
}