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#include <errno.h>
#include <getopt.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "cbs.h"
#include "src/compat.h"
#define CC "cc"
#define CFLAGS "-Wall", "-Wextra", "-Wpedantic", "-Werror", "-pipe"
#define CFLAGS_DEBUG "-DGRAB_DEBUG", "-g", "-ggdb3"
#ifdef __APPLE__
# define CFLAGS_RELEASE "-O3"
#else
# define CFLAGS_RELEASE "-O3", "-march=native", "-mtune=native"
#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)
static char *mkoutpath(const char *);
static bool dflag, Pflag;
int
main(int argc, char **argv)
{
int opt;
cmd_t c = {0};
struct option longopts[] = {
{"debug", no_argument, 0, 'd'},
{"no-pcre", no_argument, 0, 'P'},
{nullptr, 0, 0, 0 },
};
cbsinit(argc, argv);
rebuild();
while ((opt = getopt_long(argc, argv, "dP", longopts, nullptr)) != -1) {
switch (opt) {
case 'd':
dflag = true;
break;
case 'P':
Pflag = true;
break;
default:
fputs("Usage: make [-dP]\n", stderr);
exit(EXIT_FAILURE);
}
}
argc -= optind;
argv += optind;
if (argc > 0) {
if (streq(*argv, "clean")) {
cmdadd(&c, "rm", "-f", "grab");
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);
cmdadd(&c, "cp", "grab", "git-grab", bin);
cmdprc(c);
cmdadd(&c, "cp", "man/grab.1", "man/git-grab.1", man);
cmdprc(c);
}
} else {
struct strv cc = {0};
struct strv cflags = {0};
env_or_default(&cc, "CC", CC);
if (dflag)
env_or_default(&cflags, "CFLAGS", CFLAGS, CFLAGS_DEBUG);
else
env_or_default(&cflags, "CFLAGS", CFLAGS, CFLAGS_RELEASE);
for (int i = 0; i < 2; i++) {
char buf[] = "-DGIT_GRAB=X";
buf[sizeof(buf) - 2] = i + '0';
cmdaddv(&c, cc.buf, cc.len);
cmdaddv(&c, cflags.buf, cflags.len);
cmdadd(&c, buf);
if (!Pflag) {
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");
cmdprc(c);
}
strvfree(&cc);
strvfree(&cflags);
}
return EXIT_SUCCESS;
}
char *
mkoutpath(const char *s)
{
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;
}
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__);
}
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