Fix boolean value handling in rc parser. Add --debug option.

src/assignmenttool/__init__.py

@@ -34,7 +34,7 @@
 
 ####################################################################################################
 
-def compileLaTeX(tex, pdflatex):
+def compileLaTeX(tex, pdflatex, keepdir = False):
     """ Compile the 'hmm.tex' file in the given directory """
     tdir = tempfile.mkdtemp()
     out = open(tdir + '/out.tex', 'w')
@@ -48,8 +48,10 @@ def compileLaTeX(tex, pdflatex):
         raise AToolError('An error occurred during LaTeX execution')
     with open(os.path.join(tdir, 'out.pdf'), 'rb') as infile:
         pdf = infile.read()
+    if keepdir:
+        return tdir, pdf
     shutil.rmtree(tdir)
-    return pdf
+    return None, pdf
 
 ####################################################################################################
 
@@ -213,7 +215,7 @@ def process(config):
         tex = tex.replace('§§global§§', '\n'.join(global_))
         tex = tex.replace('§§body§§', '\n'.join(body))
         tex = tex.replace('§§tasks§§', '\n'.join(body))
-        pdf = compileLaTeX(tex, config.pdflatex)
+        tdir, pdf = compileLaTeX(tex, config.pdflatex, config.debug)
 
         # Move output file in place
         outpath = config.pdf_filename.replace('§§username§§', user).replace('§§name§§', realname).replace('§§sheetnr§§', str(config.sheet))
@@ -224,7 +226,10 @@ def process(config):
                 raise AToolError(f"Output path '{outpath}' exists! Aborting!")
             with open(outpath, 'wb') as outfile:
                 outfile.write(pdf)
-            print(f'[OK]\t{user}')
+            if config.debug:
+                print(f"[OK]\t{user} [temp dir '{tdir}']")
+            else:
+                print(f"[OK]\t{user}")
 
         # Prepare email if requested to do so
         if config.mail:

src/assignmenttool/config.py

@@ -51,6 +51,10 @@ def config_from_cli():
     mail.add_argument('--mail-bcc', type = str, nargs = '+', help = 'BCC recipient to add to every sent out email.')
     mail.add_argument('--mail-subject', type = str, help = 'Subject for outgoing emails to participants. May contain variables §§username§§, §§name§§ and §§sheetnr§§.')
     mail.add_argument('--mail-template', type = str, help = 'Path to the email body template for outgoing emails to participants. The template itself may contain variables §§username§§, §§name§§, §§sheetnr§§ and §§tutorname§§.')
+
+    dev = parser.add_argument_group('developer settings')
+    dev.add_argument('--debug', action = 'store_true', help = 'Do not remove temporary LaTeX build folder. Print path instead.')
+
     parser.add_argument_group(mail)
     config = parser.parse_args()
 
@@ -88,9 +92,10 @@ def read_rc(config):
     # Boolean arguments
     for cli_arg, conf_group, conf_key in [
             ('no_local_file', 'General', 'NoLocalFile'),
+            ('debug', 'General', 'Debug'),
             ('mail_smtp_no_tls', 'Mail', 'NoTLS'),
             ]:
-        if vars(config)[cli_arg] is None:
+        if vars(config)[cli_arg] is False:
             try:
                 vars(config)[cli_arg] = True if configfile[conf_group][conf_key] in ['yes', 'y', 'Yes', 'YES', 'True', 'TRUE', 'true', '1'] else False
             except KeyError: