From 8c38f351674c99d00f4850329ab9589bed63340c Mon Sep 17 00:00:00 2001
From: Radovan Bast <bast@users.noreply.github.com>
Date: Mon, 22 Jun 2015 09:24:39 +0200
Subject: [PATCH] fix for division by 0 problem for projects without any
 modules

---
 update.py | 49 ++++++++++++++++++++++++++-----------------------
 1 file changed, 26 insertions(+), 23 deletions(-)

diff --git a/update.py b/update.py
index 881cf9b..7f65884 100755
--- a/update.py
+++ b/update.py
@@ -194,31 +194,34 @@ def fetch_modules(config, module_directory):
                     config.sections()))
     n = len(l)
 
-    i = 0
-    print_progress_bar(text='- fetching modules:', done=0, total=n, width=30)
     list_of_modules = []
-    for section in config.sections():
-        if config.has_option(section, 'source'):
-            for src in config.get(section, 'source').split('\n'):
-                module_name = os.path.basename(src)
-                list_of_modules.append(module_name)
-                dst = os.path.join(module_directory, 'autocmake_%s' % module_name)
-                if 'http' in src:
-                    fetch_url(src, dst)
-                else:
-                    if os.path.exists(src):
-                        shutil.copyfile(src, dst)
+
+    if n > 0:  # otherwise division by zero in print_progress_bar
+        i = 0
+        print_progress_bar(text='- fetching modules:', done=0, total=n, width=30)
+        for section in config.sections():
+            if config.has_option(section, 'source'):
+                for src in config.get(section, 'source').split('\n'):
+                    module_name = os.path.basename(src)
+                    list_of_modules.append(module_name)
+                    dst = os.path.join(module_directory, 'autocmake_%s' % module_name)
+                    if 'http' in src:
+                        fetch_url(src, dst)
                     else:
-                        sys.stderr.write("ERROR: %s does not exist\n" % src)
-                        sys.exit(-1)
-            i += 1
-            print_progress_bar(
-                text='- fetching modules:',
-                done=i,
-                total=n,
-                width=30
-            )
-    print('')
+                        if os.path.exists(src):
+                            shutil.copyfile(src, dst)
+                        else:
+                            sys.stderr.write("ERROR: %s does not exist\n" % src)
+                            sys.exit(-1)
+                i += 1
+                print_progress_bar(
+                    text='- fetching modules:',
+                    done=i,
+                    total=n,
+                    width=30
+                )
+        print('')
+
     return list_of_modules