From def417b8a550ba3975510e799aa592c36aa8addf Mon Sep 17 00:00:00 2001
From: Florian Bruhin <git@the-compiler.org>
Date: Sun, 21 Sep 2014 22:15:56 +0200
Subject: [PATCH] Check if docs are up to date if running from git repo.

---
 qutebrowser/network/qutescheme.py |  7 ++++++-
 qutebrowser/utils/utils.py        | 30 ++++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+), 1 deletion(-)

diff --git a/qutebrowser/network/qutescheme.py b/qutebrowser/network/qutescheme.py
index cb9e9ae6d..e3297aefc 100644
--- a/qutebrowser/network/qutescheme.py
+++ b/qutebrowser/network/qutescheme.py
@@ -31,7 +31,7 @@ from PyQt5.QtNetwork import QNetworkReply
 
 import qutebrowser
 from qutebrowser.network import schemehandler
-from qutebrowser.utils import version, utils, jinja, log
+from qutebrowser.utils import version, utils, jinja, log, message
 
 
 pyeval_output = ":pyeval was never called"
@@ -137,6 +137,11 @@ def qute_help(request):
     urlpath = request.url().path()
     if not urlpath or urlpath == '/':
         urlpath = 'index.html'
+    else:
+        urlpath = urlpath.lstrip('/')
+    if not utils.docs_up_to_date(urlpath):
+        message.error("Your documentation is outdated! Please re-run scripts/"
+                      "asciidoc2html.py.")
     path = 'html/doc/{}'.format(urlpath)
     return utils.read_file(path).encode('UTF-8', errors='xmlcharrefreplace')
 
diff --git a/qutebrowser/utils/utils.py b/qutebrowser/utils/utils.py
index fd7e35863..feef84e61 100644
--- a/qutebrowser/utils/utils.py
+++ b/qutebrowser/utils/utils.py
@@ -507,6 +507,36 @@ def is_enum(obj):
         return False
 
 
+def is_git_repo():
+    """Check if we're running from a git repository."""
+    gitfolder = os.path.join(qutebrowser.basedir, os.path.pardir, '.git')
+    return os.path.isdir(gitfolder)
+
+
+def docs_up_to_date(path):
+    """Check if the generated html documentation is up to date.
+
+    Args:
+        path: The path of the document to check.
+
+    Return:
+        True if they are up to date or we couldn't check.
+        False if they are outdated.
+    """
+    if hasattr(sys, 'frozen') or not is_git_repo():
+        return True
+    html_path = os.path.join(qutebrowser.basedir, 'html', 'doc', path)
+    filename = os.path.splitext(path)[0]
+    asciidoc_path = os.path.join(qutebrowser.basedir, os.path.pardir,
+                                 'doc', 'help', filename + '.asciidoc')
+    try:
+        html_time = os.path.getmtime(html_path)
+        asciidoc_time = os.path.getmtime(asciidoc_path)
+    except FileNotFoundError:
+        return True
+    return asciidoc_time <= html_time
+
+
 class DocstringParser:
 
     """Generate documentation based on a docstring of a command handler.