Merge pull request #13 from carlosbm/master

Disqus and other enhancements

README.md

@@ -50,6 +50,5 @@ Features
 Non features (not planned)
 --------------------------
 
-- Comments. Would need a CAPTCHA or another antispam mechanism. Comments are handled through twitter, with a Twitter button
 
 Read the CHANGELOG section of the script header for more updates

bb.sh

@@ -15,7 +15,7 @@
 # Basically it asks the user to create a text file, then converts it into a .html file
 # and then rebuilds the index.html and feed.rss.
 #
-# Comments are not supported.
+# Comments are supported via external service (Disqus).
 #
 # This script is standalone, it doesn't require any other file to run
 #
@@ -60,6 +60,8 @@
 #
 #########################################################################################
 #
+# 1.6.1    'date' fix when hours are 1 digit.
+# 1.6.0    Disqus comments. External configuration file. Check of 'date' command version.
 # 1.5.1    Misc bugfixes and parameter checks
 # 1.5      Durad Radojicic refactored some code and added flexibility and i18n
 # 1.4.2    Now issues are handled at Github
@@ -85,9 +87,15 @@
 
 # Global variables
 # It is recommended to perform a 'rebuild' after changing any of this in the code
+
+# Config file. Use instead of this function if you want to avoid merges in VCS
+global_config=".config"
+
 global_variables() {
+    echo Loading inline configuration
+
     global_software_name="BashBlog"
-    global_software_version="1.5.1"
+    global_software_version="1.6.1"
 
     # Blog title
     global_title="My fancy blog"
@@ -118,6 +126,10 @@ global_variables() {
     global_twitter="true"
     global_twitter_username="example"
 
+    # Leave these empty if you don't want to use disqus for comments
+    global_disqus="true"
+    global_disqus_username="disqus_undefined"
+
 
     # Blog generated files
     # index page of blog (it is usually good to use "index.html" here)
@@ -169,6 +181,45 @@ google_analytics() {
 </script>"
 }
 
+# Prints the required code for disqus comments
+disqus_body() {
+if [ "$global_disqus" != "" ]; then
+    echo '<div id="disqus_thread"></div>
+            <script type="text/javascript">
+            /* * * CONFIGURATION VARIABLES: EDIT BEFORE PASTING INTO YOUR WEBPAGE * * */
+               var disqus_shortname = '\'$global_disqus_username\''; // required: replace example with your forum shortname
+
+            /* * * DONT EDIT BELOW THIS LINE * * */
+            (function() {
+            var dsq = document.createElement("script"); dsq.type = "text/javascript"; dsq.async = true;
+            dsq.src = "//" + disqus_shortname + ".disqus.com/embed.js";
+            (document.getElementsByTagName("head")[0] || document.getElementsByTagName("body")[0]).appendChild(dsq);
+            })();
+            </script>
+            <noscript>Please enable JavaScript to view the <a href="http://disqus.com/?ref_noscript">comments powered by Disqus.</a></noscript>
+            <a href="http://disqus.com" class="dsq-brlink">comments powered by <span class="logo-disqus">Disqus</span></a>'
+fi
+
+}
+# Prints the required code for disqus in the footer
+disqus_footer() {
+if [ "$global_disqus" != "" ]; then
+       echo '<script type="text/javascript">
+               /* * * CONFIGURATION VARIABLES: EDIT BEFORE PASTING INTO YOUR WEBPAGE * * */
+               var disqus_shortname = '\'$global_disqus_username\''; // required: replace example with your forum shortname
+
+               /* * * DONT EDIT BELOW THIS LINE * * */
+               (function () {
+               var s = document.createElement("script"); s.async = true;
+               s.type = "text/javascript";
+               s.src = "//" + disqus_shortname + ".disqus.com/count.js";
+               (document.getElementsByTagName("HEAD")[0] || document.getElementsByTagName("BODY")[0]).appendChild(s);
+               }());
+               </script>'
+
+    fi
+}
+
 # Edit an existing, published .html file while keeping its original timestamp
 # Please note that this function does not automatically republish anything, as
 # it is usually called from 'main'.
@@ -178,7 +229,7 @@ google_analytics() {
 #
 # $1 	the file to edit
 edit() {
-    timestamp="$(date -r $1 +'%Y%m%d%k%M')"
+    timestamp="$(date -r $1 +'%Y%m%d%H%M')"
     $EDITOR "$1"
     touch -t $timestamp "$1"
 }
@@ -187,8 +238,8 @@ edit() {
 #
 # $1 the post URL
 twitter() {
-    echo "<p id='twitter'>$template_comments &nbsp;"
+    echo "<p id='twitter'> <a href=\"$1#disqus_thread\">$template_comments</a> &nbsp;"
-    echo "<a href=\"https://twitter.com/share\" class=\"twitter-share-button\" data-text=\"$template_twitter_comment\" data-url=\"$1\""
+    echo "<a href=\"https://twitter.com/share\" class=\"twitter-share-button\" data-text=\"&lt;Type your comment here but please leave the URL so that other people can follow the comments&gt;\" data-url=\"$1\""
 
     if [ "$global_twitter_username" != "" ]; then
         echo " data-via=\"$global_twitter_username\""
@@ -258,10 +309,16 @@ create_html_page() {
     fi
 
     echo '</div>' >> "$filename" # content
+
+    # Add disqus commments except for index and all_posts pages
+    if [[ ${filename%.*.*} !=  "index" && ${filename%.*.*} != "all_posts" ]]; then
+    	disqus_body >> "$filename"
+    fi
     # page footer
     cat .footer.html >> "$filename"
     # close divs
     echo '</div></div>' >> "$filename" # divbody and divbodyholder 
+    disqus_footer >> "$filename"
     echo '</body></html>' >> "$filename"
 }
 
@@ -422,7 +479,7 @@ rebuild_index() {
 # Displays a list of the posts
 list_posts() {
     ls *.html &> /dev/null
-    if [[ $? -ne 0 ]]; then 
+    if [[ $? -ne 0 ]]; then
         echo "No posts yet. Use 'bb.sh post' to create one"
         return
     fi
@@ -568,7 +625,7 @@ rebuild_all_entries() {
 
         create_html_page "$contentfile" "$i.rebuilt" no "$title" "$timestamp"
         # keep the original timestamp!
-        timestamp="$(date -r $i +'%Y%m%d%k%M')"
+        timestamp="$(date -r $i +'%Y%m%d%H%M')"
         mv "$i.rebuilt" "$i"
         chmod 644 "$i"
         touch -t $timestamp "$i"
@@ -608,13 +665,35 @@ reset() {
     fi
 }
 
+date_version_detect() {
+	date --version >/dev/null 2>&1
+	if [ $? -ne 0 ];  then
+		# date utility is BSD. Test if gdate is installed 
+		if gdate --version >/dev/null 2>&1 ; then
+                   date() {
+                     gdate "$@"
+                   }
+		   echo Using gdate.
+		else
+		   echo ERROR: Not GNU date found.
+		   echo Try installing gdate utility or coreutils.
+		   echo Exiting...
+		   exit
+		fi
+	fi    
+}
+
 # Main function
 # Encapsulated on its own function for readability purposes
 #
 # $1     command to run
 # $2     file name of a draft to continue editing (optional)
 do_main() {
-    global_variables
+    # Detect if using BSD date or GNU date
+    date_version_detect
+    # Use config file or fallback to inline configuration
+    echo Loading configuration
+    source "$global_config" &> /dev/null ||  global_variables
 
     # Check for $EDITOR
     if [[ -z "$EDITOR" ]]; then