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authormidipix <writeonce@midipix.org>2015-11-26 21:47:59 -0500
committermidipix <writeonce@midipix.org>2016-11-10 23:35:28 -0500
commite8510034681b369e7140721f8fbeddaf1d813475 (patch)
treec7dd8449a9921fff643728751e6479fc8f1a04ed
parent4ab720b44ac5a98a9192d87a50630f964ab5eaa6 (diff)
downloadperk-e8510034681b369e7140721f8fbeddaf1d813475.tar.bz2
perk-e8510034681b369e7140721f8fbeddaf1d813475.tar.xz
utility: show version (git commit): initial implementation.
-rw-r--r--src/perk.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/src/perk.c b/src/perk.c
index 72cfa37..b8a4ac4 100644
--- a/src/perk.c
+++ b/src/perk.c
@@ -2,11 +2,26 @@
#include <unistd.h>
#include <perk/perk.h>
#include <perk/perk_output.h>
+#include "perk_version.h"
#ifndef PERK_DRIVER_FLAGS
#define PERK_DRIVER_FLAGS PERK_DRIVER_VERBOSITY_ERRORS|PERK_DRIVER_VERBOSITY_USAGE
#endif
+static const char vermsg[] = "%s (git://midipix.org/perk): commit %s.\n";
+
+static void perk_version(struct pe_driver_ctx * dctx)
+{
+ char buf[512];
+ size_t len;
+
+ if (dctx->cctx.fdout >= 0) {
+ len = sprintf(buf,vermsg,dctx->program,PERK_GIT_VERSION);
+ write(dctx->cctx.fdout,buf,len);
+ } else
+ fprintf(stdout,vermsg,dctx->program,PERK_GIT_VERSION);
+}
+
static void perk_paragraph_break(struct pe_unit_ctx * uctx, int * fpara)
{
if (*fpara) {
@@ -51,6 +66,9 @@ static int perk_main(int argc, const char ** argv, const char ** envp)
if ((ret = pe_get_driver_ctx(argv,envp,PERK_DRIVER_FLAGS,&dctx)))
return (ret == PERK_USAGE) ? 0 : 2;
+ if (dctx->cctx.drvflags & PERK_DRIVER_VERSION)
+ perk_version(dctx);
+
for (unit=dctx->units; *unit; unit++) {
if (!(pe_get_unit_ctx(dctx,*unit,&uctx))) {
perk_perform_unit_actions(uctx);