added version printing

common.mk

@@ -16,7 +16,7 @@ C_OBJS4=$(addprefix objs4/, $(C_SRC:.c=.o))
 C_OBJS8=$(addprefix objs8/, $(C_SRC:.c=.o))
 LIBS=-lm $(PYTHONLIB) $(HDF5LIB)
 
-default: dirs $(ISPC_HEADERS4) $(ISPC_HEADERS8) $(CPP_OBJS4) $(CPP_OBJS8) $(C_OBJS4) $(C_OBJS8) $(EXE)4 $(EXE)8
+default: dirs version $(EXE)4 $(EXE)8
 
 .PHONY: dirs clean print
 
@@ -45,6 +45,9 @@ clean:
 	/bin/rm -rf objs* *~ $(EXE)4 $(EXE)8 *.dSYM
 	find ./ -iname "*.dump" -exec rm '{}' ';'
 
+version:
+	python python/version.py
+
 $(EXE)4: $(CPP_OBJS4) $(C_OBJS4) $(ISPC_OBJS4)
 	$(MPICXX) $(CFLAGS) -fopenmp -o $@ $^ $(LIBS)
 

cpp/solfec.cpp

@@ -24,10 +24,18 @@ SOFTWARE.
 
 /* Contributors: Tomasz Koziara */
 
+#include <stdio.h>
 #include <mpi.h>
 #include "real.h"
+#include "version.h"
 
 int main (int argc, char *argv[])
 {
+  if (argc == 1)
+  {
+    printf ("VERSION: 1.%s (%s)\n", VERSION_HASH, VERSION_DATE);
+    printf ("SYNOPSIS: solfec%d path/to/input/file.py\n", REALSIZE);
+  }
+
   return 0;
 }

cpp/version.h

@@ -0,0 +1,2 @@
+#define VERSION_HASH "e1457db"
+#define VERSION_DATE "2019-07-04"

python/version.py

@@ -0,0 +1,18 @@
+# convert git shortehand hash into version string
+import subprocess
+
+git = ["git",  "log",  "--pretty=format:'%h'", "-n", "1"]
+p = subprocess.Popen(git, stdout=subprocess.PIPE)
+commit = p.communicate()[0].replace("'",'"')
+git = ["git", "show", "-s", "--format=%cd", "--date=short", commit.replace('"','')]
+p = subprocess.Popen(git, stdout=subprocess.PIPE)
+date = p.communicate()[0].replace('\n','')
+
+with open('cpp/version.h') as f:
+  lines = f.readlines()
+  comm0 = lines[0].split()[2]
+
+if comm0 != commit:
+  with open('cpp/version.h','w') as f:
+    f.write('#define VERSION_HASH %s\n' % commit)
+    f.write('#define VERSION_DATE "%s"' % date)