freeswitch/build/print_git_revision.c

94 lines
2.9 KiB
C

/* -*- mode:c; indent-tabs-mode:nil; c-basic-offset:2 -*-
* Author: Travis Cross <tc@traviscross.com>
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sys/wait.h>
#include <time.h>
static int show_unclean = 0;
static int sys(char *buf, int buflen, char *cmd) {
int i, p[2];
if (pipe(p)) return 255;
if (!(i=fork())) {
close(p[0]);
dup2(p[1],1);
close(p[1]);
execlp("sh","sh","-c",cmd,NULL);
} else {
int s, x=0;
close(p[1]);
waitpid(i,&s,0);
if (!(WIFEXITED(s))) return 255;
if (WEXITSTATUS(s)) return WEXITSTATUS(s);
if (buf) {
while (buflen>1 && (x=read(p[0],buf,buflen-1))>0) buf+=x,buflen-=x;
close(p[0]);
if (x<0) return 255;
*buf=0;
} else close(p[0]);
}
return 0;
}
static int sys1(char *buf, int buflen, char *cmd) {
int r; char *c;
if ((r=sys(buf,buflen,cmd))) return r;
if ((c=strstr(buf,"\n"))) *c=0;
return 0;
}
static int print_version(void) {
char xver[256], xdate[256], xfdate[256], xcommit[256];
time_t xdate_t; struct tm *xdate_tm;
if ((sys1(xdate,sizeof(xdate),"git log -n1 --format='%ct' HEAD"))) return 1;
xdate_t=(time_t)atoi(xdate);
if (!(xdate_tm=gmtime(&xdate_t))) return 1;
strftime(xfdate,sizeof(xfdate),"%Y%m%dT%H%M%SZ",xdate_tm);
if ((sys1(xcommit,sizeof(xcommit),"git rev-list -n1 --abbrev=10 --abbrev-commit HEAD")))
return 1;
snprintf(xver,sizeof(xver),"+git~%s~%s",xfdate,xcommit);
if (show_unclean && (sys(NULL,0,"git diff-index --quiet HEAD"))) {
char buf[256], now[256]; time_t now_t=time(NULL); struct tm *now_tm;
if (!(now_tm=gmtime(&now_t))) return 1;
strftime(now,sizeof(now),"%Y%m%dT%H%M%SZ",now_tm);
snprintf(buf,sizeof(buf),"%s+unclean~%s",xver,now);
strncpy(xver,buf,sizeof(xver));
}
printf("%s\n",xver);
return 0;
}
static int print_human_version(void) {
char xver[256], xdate[256], xfdate[256], xcommit[256];
time_t xdate_t; struct tm *xdate_tm;
if ((sys1(xdate,sizeof(xdate),"git log -n1 --format='%ct' HEAD"))) return 1;
xdate_t=(time_t)atoi(xdate);
if (!(xdate_tm=gmtime(&xdate_t))) return 1;
strftime(xfdate,sizeof(xfdate),"%a, %d %b %Y %H:%M:%S Z",xdate_tm);
if ((sys1(xcommit,sizeof(xcommit),"git rev-list -n1 --abbrev=10 --abbrev-commit HEAD")))
return 1;
snprintf(xver,sizeof(xver),"; git at commit %s on %s",xcommit,xfdate);
if (show_unclean && (sys(NULL,0,"git diff-index --quiet HEAD"))) {
char buf[256], now[256]; time_t now_t=time(NULL); struct tm *now_tm;
if (!(now_tm=gmtime(&now_t))) return 1;
strftime(now,sizeof(now),"%a, %d %b %Y %H:%M:%S Z",now_tm);
snprintf(buf,sizeof(buf),"%s; unclean git build on %s",xver,now);
strncpy(xver,buf,sizeof(xver));
}
printf("%s\n",xver);
return 0;
}
int main(int argc, char **argv) {
if (argc > 1 && !strcasecmp(argv[1],"-h"))
return print_human_version();
else
return print_version();
}