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Make version output more human-friendly

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Our main version string is designed for release engineering purposes:
it matches file name conventions used for versioned tarballs and the
versions sort lexicographically while containing all pertinent
information.

With this commit we add in parentheses a more human-friendly rendering
of the version string: we spell out the meaning of each field and
render the datetime in RFC 822 notation.
This commit is contained in:
Travis Cross
2012-07-20 07:43:26 +00:00
parent cae357e784
commit a8019d803c
10 changed files with 48 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files
build/print_git_revision.c
+29 -1
View File
@@ -42,7 +42,7 @@ static int sys1(char *buf, int buflen, char *cmd) {
return 0;
}
int main(int argc, char **argv) {
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;
@@ -63,3 +63,31 @@ int main(int argc, char **argv) {
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();
}