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- update revision via popen() (via GZDoom OS X)

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This commit is contained in:
Randy Heit 2013-06-24 20:52:01 -05:00
parent 394f21f71e
commit e989e11f5c
1 changed files with 8 additions and 23 deletions
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29
tools/updaterevision/updaterevision.c
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@ -29,8 +29,7 @@ void stripnl(char *str)
int main(int argc, char **argv) int main(int argc, char **argv)
{ {
char *name; char vertag[64], lastlog[64], lasthash[64], *hash = NULL;
char vertag[64], lastlog[64], lasthash[64], run[256], *hash = NULL;
FILE *stream = NULL; FILE *stream = NULL;
int gotrev = 0, needupdate = 1; int gotrev = 0, needupdate = 1;
@ -47,33 +46,19 @@ int main(int argc, char **argv)
// on a tag, it returns that tag. Otherwise it returns <most recent tag>-<number of // on a tag, it returns that tag. Otherwise it returns <most recent tag>-<number of
// commits since the tag>-<short hash>. // commits since the tag>-<short hash>.
// Use git log to get the time of the latest commit in ISO 8601 format and its full hash. // Use git log to get the time of the latest commit in ISO 8601 format and its full hash.
sprintf(run, "git describe --tags && git log -1 --format=%%ai*%%H", argv[1]); stream = popen("git describe --tags && git log -1 --format=%ai*%H", "r");
if ((name = tempnam(NULL, "gitout")) != NULL)
if (NULL != stream)
{ {
#ifdef __APPLE__ if (fgets(vertag, sizeof vertag, stream) == vertag &&
// tempnam will return errno of 2 even though it is successful for our purposes.
errno = 0;
#endif
if((stream = freopen(name, "w+b", stdout)) != NULL &&
system(run) == 0 &&
errno == 0 &&
fseek(stream, 0, SEEK_SET) == 0 &&
fgets(vertag, sizeof vertag, stream) == vertag &&
fgets(lastlog, sizeof lastlog, stream) == lastlog) fgets(lastlog, sizeof lastlog, stream) == lastlog)
{ {
stripnl(vertag); stripnl(vertag);
stripnl(lastlog); stripnl(lastlog);
gotrev = 1; gotrev = 1;
} }
}
if (stream != NULL) pclose(stream);
{
fclose(stream);
remove(name);
}
if (name != NULL)
{
free(name);
} }
if (gotrev) if (gotrev)