add epilog

argparse.bash

@@ -28,7 +28,8 @@ class MyArgumentParser(argparse.ArgumentParser):
         sys.exit(1)
 
 parser = MyArgumentParser(prog=os.path.basename("$0"),
-            description="""$ARGPARSE_DESCRIPTION""")
+            description="""$ARGPARSE_DESCRIPTION""",
+            epilog="""$ARGPARSE_EPILOG""")
 EOF
 
     # stdin to this function should contain the parser definition

example.sh

@@ -1,7 +1,10 @@
 #!/usr/bin/env bash
 
 ARGPARSE_DESCRIPTION="Sample script description"      # this is optional
-source $(dirname $0)/argparse.bash || exit 1
+ARGPARSE_EPILOG="This is the epilog."      # this is optional
+# shellcheck source=/Users/aberezin/apps/argparse.bash
+source "$ARGPARSE_PATH" || exit 1
+#optional way to plave src file:  source $(dirname $0)/argparse.bash || exit 1
 argparse "$@" <<EOF || exit 1
 parser.add_argument('infile')
 parser.add_argument('outfile')
@@ -16,7 +19,7 @@ EOF
 echo required infile: "$INFILE"
 echo required outfile: "$OUTFILE"
 echo the answer: "$THE_ANSWER"
-echo -n do the thing?
+echo -n "do the thing?"
 if [[ $DO_THE_THING ]]; then
     echo " yes, do it"
 else

test.py

@@ -9,15 +9,21 @@
 from textwrap import dedent
 
 
-def run(script, *args):
+def run(script,*args,expect_exit_1=False):
     cmd = [script] + list(args)
     if hasattr(subprocess, 'check_output'):
         # python 2.7+
-        output = subprocess.check_output(cmd, universal_newlines=True).strip()
+        try:
+            output = subprocess.check_output(cmd, universal_newlines=True).strip()
+        except subprocess.CalledProcessError as cpe:
+            if not expect_exit_1:
+                raise cpe
+            if cpe.returncode  != 1:
+                raise cpe
+            output = cpe.output 
     else:
         # python 2.6
         output = subprocess.Popen(cmd, stdout=subprocess.PIPE).communicate()[0].strip()
-
     return output
 
 
@@ -57,6 +63,9 @@ def test05(self):
         output = run('./argparse.bash')
         self.assertTrue(output.startswith('#!/usr/bin/env bash'))
 
+    def test06(self):
+        output = run('./example.sh','-h', expect_exit_1 = True )
+        self.assertTrue('epilog' in output)
 
 if __name__ == '__main__':
     unittest.main()