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7e7d1a8688
bashblog/bb.sh
Alexey Shpakovsky 7e7d1a8688 cut text (leave up to "<!-- text cut -->") in index and RSS 
note that when requested to cut entry, it keeps stuff between text end and
entry end, so twitter button will still find its way into RSS feed

also fix indentation
2014-03-01 09:59:17 +01:00

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39 KiB
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#!/usr/bin/env bash
# BashBlog, a simple blog system written in a single bash script
# Copyright: Carlos Fenollosa <carlos.fenollosa@gmail.com>, 2011-2014
# With contributions from many others:
# https://github.com/carlesfe/bashblog/contributors
#########################################################################################
#
# README
#
#########################################################################################
#
# This is a very basic blog system
#
# 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 supported via external service (Disqus).
# Markdown syntax is supported via third party library (e.g. Gruber's Markdown.pl)
#
# This script is standalone, it doesn't require any other file to run
#
# Files that this script generates:
# - main.css (inherited from my web page) and blog.css (blog-specific stylesheet)
# - one .html for each post
# - one tag_*.html file for each tag
# - index.html (regenerated each run)
# - feed.rss (idem)
# - all_posts.html (idem)
# - all_tags.html (idem)
# - it also generates temporal files, which are removed afterwards
#
# It generates valid html and rss files, so keep care to use valid xhtml when editing a post
#
# There are many loops which iterate on '*.html' so make sure not to manually put other
# html files on this folder.
#
# Read more: https://github.com/cfenollosa/bashblog
#########################################################################################
#
# LICENSE
#
#########################################################################################
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#########################################################################################
#
# CHANGELOG
#
#########################################################################################
#
# 2.1 Support for tags/categories
# 'delete' command
# 2.0.3 Support for other analytics code, via external file
# 2.0.2 Fixed bug when $body_begin_file was empty
# Added extra line in the footer linking to the github project
# 2.0.1 Allow personalized header/footer files
# 2.0 Added Markdown support
# Fully support BSD date
# 1.6.4 Fixed bug in localized dates
# 1.6.3 Now supporting BSD date
# 1.6.2 Simplified some functions and variables to avoid duplicated information
# 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 Đurađ Radojičić (djura-san) refactored some code and added flexibility and i18n
# 1.4.2 Now issues are handled at Github
# 1.4.1 Some code refactoring
# 1.4 Using twitter for comments, improved 'rebuild' command
# 1.3 'edit' command
# 1.2.2 Feedburner support
# 1.2.1 Fixed the timestamps bug
# 1.2 'list' command
# 1.1 Draft and preview support
# 1.0 Read http://is.gd/Bkdoru
#########################################################################################
#
# CODE
#
#########################################################################################
#
# As usual with bash scripts, scroll all the way to the bottom for the main routine
# All other functions are declared above main.
# Global variables
# It is recommended to perform a 'rebuild' after changing any of this in the code
# Config file. Any settings "key=value" written there will override the
# global_variables defaults. Useful to avoid editing bb.sh and having to deal
# with merges in VCS
global_config=".config"
# This function will load all the variables defined here. They might be overriden
# by the 'global_config' file contents
global_variables() {
global_software_name="BashBlog"
global_software_version="2.1"
# Blog title
global_title="My fancy blog"
# The typical subtitle for each blog
global_description="A blog about turtles and carrots"
# The public base URL for this blog
global_url="http://example.com/blog"
# Your name
global_author="John Smith"
# You can use twitter or facebook or anything for global_author_url
global_author_url="http://twitter.com/example"
# Your email
global_email="john@smith.com"
# CC by-nc-nd is a good starting point, you can change this to "&copy;" for Copyright
global_license="CC by-nc-nd"
# If you have a Google Analytics ID (UA-XXXXX) and wish to use the standard
# embedding code, put it on global_analytics
# If you have custom analytics code (i.e. non-google) or want to use the Universal
# code, leave global_analytics empty and specify a global_analytics_file
global_analytics=""
global_analytics_file=""
# Leave this empty (i.e. "") if you don't want to use feedburner,
# or change it to your own URL
global_feedburner=""
# Change this to your username if you want to use twitter for comments
global_twitter_username=""
# Change this to your disqus username to use disqus for comments
global_disqus_username=""
# Blog generated files
# index page of blog (it is usually good to use "index.html" here)
index_file="index.html"
number_of_index_articles="8"
# global archive
archive_index="all_posts.html"
tags_index="all_tags.html"
# feed file (rss in this case)
blog_feed="feed.rss"
number_of_feed_articles="10"
# prefix for tags/categories files
# please make sure that no other html file starts with this prefix
prefix_tags="tag_"
# personalized header and footer (only if you know what you're doing)
# DO NOT name them .header.html, .footer.html or they will be overwritten
# leave blank to generate them, recommended
header_file=""
footer_file=""
# extra content to add just after we open the <body> tag
# and before the actual blog content
body_begin_file=""
# Localization and i18n
# "Comments?" (used in twitter link after every post)
template_comments="Comments?"
# "View more posts" (used on bottom of index page as link to archive)
template_archive="View more posts"
# "All posts" (title of archive page)
template_archive_title="All posts"
# "All tags"
template_tags_title="All tags"
# "posts" (on "All tags" page, text at the end of each tag line, like "2. Music - 15 posts")
template_tags_posts="posts"
# "Posts tagged" (text on a title of a page with index of one tag, like "My Blog - Posts tagged "Music"")
template_tag_title="Posts tagged"
# "Tags:" (beginning of line in HTML file with list of all tags for this article)
template_tags_line_header="Tags:"
# "Back to the index page" (used on archive page, it is link to blog index)
template_archive_index_page="Back to the index page"
# "Subscribe" (used on bottom of index page, it is link to RSS feed)
template_subscribe="Subscribe"
# "Subscribe to this page..." (used as text for browser feed button that is embedded to html)
template_subscribe_browser_button="Subscribe to this page..."
# "Tweet" (used as twitter text button for posting to twitter)
template_twitter_button="Tweet"
template_twitter_comment="&lt;Type your comment here but please leave the URL so that other people can follow the comments&gt;"
# The locale to use for the dates displayed on screen (not for the timestamps)
date_format="%B %d, %Y"
date_locale="C"
# Markdown location. Trying to autodetect by default.
# The invocation must support the signature 'markdown_bin in.html > out.md'
markdown_bin="$(which Markdown.pl)"
}
# Check for the validity of some variables
# DO NOT EDIT THIS FUNCTION unless you know what you're doing
global_variables_check() {
[[ "$header_file" == ".header.html" ]] &&
echo "Please check your configuration. '.header.html' is not a valid value for the setting 'header_file'" &&
exit
[[ "$footer_file" == ".footer.html" ]] &&
echo "Please check your configuration. '.footer.html' is not a valid value for the setting 'footer_file'" &&
exit
}
# Test if the markdown script is working correctly
test_markdown() {
[[ -z "$markdown_bin" ]] && return 1
[[ -z "$(which diff)" ]] && return 1
in="/tmp/md-in-$(echo $RANDOM).md"
out="/tmp/md-out-$(echo $RANDOM).html"
good="/tmp/md-good-$(echo $RANDOM).html"
echo -e "line 1\n\nline 2" > $in
echo -e "<p>line 1</p>\n\n<p>line 2</p>" > $good
$markdown_bin $in > $out 2> /dev/null
diff $good $out &> /dev/null # output is irrelevant, we'll check $?
if [[ $? -ne 0 ]]; then
rm -f $in $good $out
return 1
fi
rm -f $in $good $out
return 0
}
# Parse a Markdown file into HTML and return the generated file
markdown() {
out="$(echo $1 | sed 's/md$/html/g')"
while [ -f "$out" ]; do out="$(echo $out | sed 's/\.html$/\.'$RANDOM'\.html')"; done
$markdown_bin $1 > $out
echo $out
}
# Prints the required google analytics code
google_analytics() {
[[ -z "$global_analytics" ]] && [[ -z "$global_analytics_file" ]] && return
if [[ -z "$global_analytics_file" ]]; then
echo "<script type=\"text/javascript\">
var _gaq = _gaq || [];
_gaq.push(['_setAccount', '"$global_analytics"']);
_gaq.push(['_trackPageview']);
(function() {
var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
})();
</script>"
else
cat "$global_analytics_file"
fi
}
# Prints the required code for disqus comments
disqus_body() {
[[ -z "$global_disqus_username" ]] && return
echo '<div id="disqus_thread"></div>
<script type="text/javascript">
/* * * CONFIGURATION VARIABLES: EDIT BEFORE PASTING INTO YOUR WEBPAGE * * */
var disqus_shortname = '\'$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>'
}
# Prints the required code for disqus in the footer
disqus_footer() {
[[ -z "$global_disqus_username" ]] && return
echo '<script type="text/javascript">
/* * * CONFIGURATION VARIABLES: EDIT BEFORE PASTING INTO YOUR WEBPAGE * * */
var disqus_shortname = '\'$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>'
}
# Reads HTML file from stdin, prints its content to stdout
# $1 where to start ("text" or "entry")
# $2 where to stop ("text" or "entry")
# $3 "cut" to remove text from <!-- text cut --> to <!-- text end -->
# note that this does not remove <!-- text cut --> comment itself,
# so you can see if text was cut or not
get_html_file_content() {
awk '/<!-- '$1' begin -->/, /<!-- '$2' end -->/{
if (!/<!-- '$1' begin -->/ && !/<!-- '$2' end -->/) print
if ("'$3'" == "cut" && /<!-- text cut -->/){
if ("'$2'" == "text") exit # no need to read further
while (getline > 0 && !/<!-- text end -->/) {}
}
}'
}
# 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'.
#
# 'edit' is kind of an advanced feature, as it leaves to the user the responsibility
# of editing an html file
#
# $1 the file to edit
edit() {
timestamp="$(date -r $1 +'%Y%m%d%H%M')"
$EDITOR "$1"
touch -t $timestamp "$1"
}
# Adds the code needed by the twitter button
#
# $1 the post URL
twitter() {
[[ -z "$global_twitter_username" ]] && return
if [[ -z "$global_disqus_username" ]]; then
echo "<p id='twitter'>$template_comments&nbsp;"
else
echo "<p id='twitter'><a href=\"$1#disqus_thread\">$template_comments</a> &nbsp;"
fi
echo "<a href=\"https://twitter.com/share\" class=\"twitter-share-button\" data-text=\"$template_twitter_comment\" data-url=\"$1\""
echo " data-via=\"$global_twitter_username\""
echo ">$template_twitter_button</a> <script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=\"//platform.twitter.com/widgets.js\";fjs.parentNode.insertBefore(js,fjs);}}(document,\"script\",\"twitter-wjs\");</script>"
echo "</p>"
}
# Check if the file is a 'boilerplate' (i.e. not a post)
# The return values are designed to be used like this inside a loop:
# is_boilerplate_file <file> && continue
#
# $1 the file
#
# Return 0 (bash return value 'true') if the input file is am index, feed, etc
# or 1 (bash return value 'false') if it is a blogpost
is_boilerplate_file() {
if [[ "$1" == "$index_file" ]] || [[ "$1" == "$archive_index" ]] || [[ "$1" == "$tags_index" ]] || [[ "$1" == "$footer_file" ]] || [[ "$1" == "$header_file" ]] || [[ "$1" == "$global_analytics_file" ]] || [[ "$1" = "$prefix_tags"* ]] ; then return 0
else return 1
fi
}
# Adds all the bells and whistles to format the html page
# Every blog post is marked with a <!-- entry begin --> and <!-- entry end -->
# which is parsed afterwards in the other functions. There is also a marker
# <!-- text begin --> to determine just the beginning of the text body of the post
#
# $1 a file with the body of the content
# $2 the output file
# $3 "yes" if we want to generate the index.html,
# "no" to insert new blog posts
# $4 title for the html header
# $5 original blog timestamp
create_html_page() {
content="$1"
filename="$2"
index="$3"
title="$4"
timestamp="$5"
# Create the actual blog post
# html, head
cat ".header.html" > "$filename"
echo "<title>$title</title>" >> "$filename"
google_analytics >> "$filename"
echo "</head><body>" >> "$filename"
# stuff to add before the actual body content
[[ -n "$body_begin_file" ]] && cat "$body_begin_file" >> "$filename"
# body divs
echo '<div id="divbodyholder">' >> "$filename"
echo '<div class="headerholder"><div class="header">' >> "$filename"
# blog title
echo '<div id="title">' >> "$filename"
cat .title.html >> "$filename"
echo '</div></div></div>' >> "$filename" # title, header, headerholder
echo '<div id="divbody"><div class="content">' >> "$filename"
file_url="$(sed 's/.rebuilt//g' <<< $filename)" # Get the correct URL when rebuilding
# one blog entry
if [[ "$index" == "no" ]]; then
echo '<!-- entry begin -->' >> "$filename" # marks the beginning of the whole post
echo '<h3><a class="ablack" href="'$file_url'">' >> "$filename"
# remove possible <p>'s on the title because of markdown conversion
echo "$(echo "$title" | sed 's/<\/*p>//g')" >> "$filename"
echo '</a></h3>' >> "$filename"
if [[ "$timestamp" == "" ]]; then
echo '<div class="subtitle">'$(LC_ALL=$date_locale date +"$date_format")' &mdash; ' >> "$filename"
else
echo '<div class="subtitle">'$(LC_ALL=$date_locale date +"$date_format" --date="$timestamp") ' &mdash; ' >> "$filename"
fi
echo "$global_author</div>" >> "$filename"
echo '<!-- text begin -->' >> "$filename" # This marks the text body, after the title, date...
fi
cat "$content" >> "$filename" # Actual content
if [[ "$index" == "no" ]]; then
echo '<!-- text end -->' >> "$filename"
twitter "$global_url/$file_url" >> "$filename"
echo '<!-- entry end -->' >> "$filename" # absolute end of the post
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"
}
# Parse the plain text file into an html file
parse_file() {
# Read for the title and check that the filename is ok
title=""
while read line; do
if [[ "$title" == "" ]]; then
# set title and
# remove extra <p> and </p> added by markdown
title=$(echo "$line" | sed 's/<\/*p>//g')
filename="$(echo $title | tr [:upper:] [:lower:])"
filename="$(echo $filename | sed 's/\ /-/g')"
filename="$(echo $filename | tr -dc '[:alnum:]-')" # html likes alphanumeric
filename="$filename.html"
content="$filename.tmp"
# Check for duplicate file names
while [ -f "$filename" ]; do
suffix="$RANDOM"
filename="$(echo $filename | sed 's/\.html/'$suffix'\.html/g')"
done
else
echo "$line" >> "$content"
fi
done < "$1"
# Create the actual html page
create_html_page "$content" "$filename" no "$title"
rm "$content"
}
# Manages the creation of the text file and the parsing to html file
# also the drafts
write_entry() {
fmt="html"; f="$2"
[[ "$2" == "-m" ]] && fmt="md" && f="$3"
if [[ "$fmt" == "md" ]]; then
test_markdown
if [[ "$?" -ne 0 ]]; then
echo "Markdown is not working, please use HTML. Press a key to continue..."
fmt="html"
read
fi
fi
if [[ "$f" != "" ]]; then
TMPFILE="$f"
if [[ ! -f "$TMPFILE" ]]; then
echo "The file doesn't exist"
delete_includes
exit
fi
# check if TMPFILE is markdown even though the user didn't specify it
extension="${TMPFILE##*.}"
[[ "$extension" == "md" ]] && fmt="md"
else
TMPFILE=".entry-$RANDOM.$fmt"
echo -e "Title on this line\n" >> "$TMPFILE"
[[ "$fmt" == "html" ]] && cat << EOF >> "$TMPFILE"
<p>The rest of the text file is an <b>html</b> blog post. The process will continue as soon
as you exit your editor.</p>
<p>$template_tags_line_header keep-this-tag-format, tags-are-optional, example</p>
EOF
[[ "$fmt" == "md" ]] && cat << EOF >> "$TMPFILE"
The rest of the text file is a **Markdown** blog post. The process will continue
as soon as you exit your editor.
$template_tags_line_header keep-this-tag-format, tags-are-optional, beware-with-underscores-in-markdown, example
EOF
fi
chmod 600 "$TMPFILE"
post_status="E"
while [ "$post_status" != "p" ] && [ "$post_status" != "P" ]; do
$EDITOR "$TMPFILE"
if [[ "$fmt" == "md" ]]; then
html_from_md="$(markdown "$TMPFILE")"
parse_file "$html_from_md"
rm "$html_from_md"
else
parse_file "$TMPFILE" # this command sets $filename as the html processed file
fi
chmod 600 "$filename"
echo -n "Preview? (Y/n) "
read p
if [[ "$p" != "n" ]] && [[ "$p" != "N" ]]; then
chmod 644 "$filename"
echo "Open $global_url/$filename in your browser"
fi
echo -n "[P]ost this entry, [E]dit again, [D]raft for later? (p/E/d) "
read post_status
if [[ "$post_status" == "d" ]] || [[ "$post_status" == "D" ]]; then
mkdir -p "drafts/"
chmod 700 "drafts/"
title="$(head -n 1 $TMPFILE)"
title="$(echo $title | tr [:upper:] [:lower:])"
title="$(echo $title | sed 's/\ /-/g')"
title="$(echo $title | tr -dc '[:alnum:]-')"
draft="drafts/$title.$fmt"
while [ -f "$draft" ]; do draft="drafts/$title-$RANDOM.$fmt"; done
mv "$TMPFILE" "$draft"
chmod 600 "$draft"
rm "$filename"
delete_includes
echo "Saved your draft as '$draft'"
exit
fi
if [[ "$post_status" == "e" ]] || [[ "$post_status" == "E" ]]; then
rm "$filename" # Delete the html file as it will be generated again
fi
done
rm "$TMPFILE"
# Parse possible tags
cp "$filename" "$filename.bak"
while read line; do
if [[ "$line" = "<p>$template_tags_line_header"* ]]; then
tags="$(echo "$line" | cut -d ":" -f 2- | sed -e 's/<\/p>//g' -e 's/^ *//' -e 's/ *$//' -e 's/, /,/g')"
IFS=, read -r -a array <<< "$tags"
echo -n "<p>$template_tags_line_header "
(for item in "${array[@]}"; do
echo -n "<a href='$prefix_tags$item.html'>$item</a>, "
done ) | sed 's/, $//g'
echo -e "</p>"
else echo "$line"
fi
done < "$filename.bak" > "$filename"
rm "$filename.bak"
chmod 644 "$filename"
echo "Posted $filename"
}
# Create an index page with all the posts
all_posts() {
echo -n "Creating an index page with all the posts "
contentfile="$archive_index.$RANDOM"
while [ -f "$contentfile" ]; do
contentfile="$archive_index.$RANDOM"
done
echo "<h3>$template_archive_title</h3>" >> "$contentfile"
echo "<ul>" >> "$contentfile"
for i in $(ls -t *.html); do
is_boilerplate_file "$i" && continue
echo -n "."
# Title
title="$(get_post_title "$i")"
echo -n '<li><a href="'$i'">'$title'</a> &mdash;' >> "$contentfile"
# Date
date="$(LC_ALL=$date_locale date -r "$i" +"$date_format")"
echo " $date</li>" >> "$contentfile"
done
echo ""
echo "</ul>" >> "$contentfile"
echo '<div id="all_posts"><a href="'./'">'$template_archive_index_page'</a></div>' >> "$contentfile"
create_html_page "$contentfile" "$archive_index.tmp" yes "$global_title &mdash; All posts"
mv "$archive_index.tmp" "$archive_index"
chmod 644 "$archive_index"
rm "$contentfile"
}
# Create an index page with all the tags
all_tags() {
echo -n "Creating an index page with all the tags "
contentfile="$tags_index.$RANDOM"
while [ -f "$contentfile" ]; do
contentfile="$tags_index.$RANDOM"
done
echo "<h3>$template_tags_title</h3>" >> "$contentfile"
echo "<ul>" >> "$contentfile"
for i in $(ls $prefix_tags*.html); do
echo -n "."
nposts="$(grep -c "^<\!-- entry begin -->$" $i)"
tagname="$(echo $i | cut -c $((${#prefix_tags}+1))- | sed 's/\.html//g')"
echo "<li><a href="$i">$tagname</a> &mdash; $nposts $template_tags_posts</li>" >> "$contentfile"
done
echo ""
echo "</ul>" >> "$contentfile"
echo '<div id="all_posts"><a href="'./'">'$template_archive_index_page'</a></div>' >> "$contentfile"
create_html_page "$contentfile" "$tags_index.tmp" yes "$global_title &mdash; $template_tags_title"
mv "$tags_index.tmp" "$tags_index"
chmod 644 "$tags_index"
rm "$contentfile"
}
# Generate the index.html with the content of the latest posts
rebuild_index() {
echo -n "Rebuilding the index "
newindexfile="$index_file.$RANDOM"
contentfile="$newindexfile.content"
while [ -f "$newindexfile" ]; do
newindexfile="$index_file.$RANDOM"
contentfile="$newindexfile.content"
done
# Create the content file
n=0
for i in $(ls -t *.html); do # sort by date, newest first
is_boilerplate_file "$i" && continue;
if [[ "$n" -ge "$number_of_index_articles" ]]; then break; fi
get_html_file_content 'entry' 'entry' 'cut' <$i >> "$contentfile"
echo -n "."
n=$(( $n + 1 ))
done
feed="$blog_feed"
if [[ "$global_feedburner" != "" ]]; then feed="$global_feedburner"; fi
echo '<div id="all_posts"><a href="'$archive_index'">'$template_archive'</a> &mdash; <a href="'$tags_index'">'$template_tags_title'</a> &mdash; <a href="'$feed'">'$template_subscribe'</a></div>' >> "$contentfile"
echo ""
create_html_page "$contentfile" "$newindexfile" yes "$global_title"
rm "$contentfile"
mv "$newindexfile" "$index_file"
chmod 644 "$index_file"
}
# Rebuilds all tag_*.html files
rebuild_tags() {
echo -n "Rebuilding tag pages "
n=0
rm $prefix_tags*.tmp.html &> /dev/null
# First we will process all files and create temporal tag files
# with just the content of the posts
for i in $(ls -t *.html); do
is_boilerplate_file "$i" && continue;
echo -n "."
tmpfile="$(mktemp tmp.XXX)"
awk '/<!-- entry begin -->/, /<!-- entry end -->/' "$i" >> "$tmpfile"
while read line; do
if [[ "$line" = "<p>$template_tags_line_header"* ]]; then
# 'split' tags by commas
echo "$line" | cut -c 10- | while IFS="," read -a tags; do
for dirty_tag in "${tags[@]}"; do # extract html around it
tag="$(echo $dirty_tag | grep -o ">.*</a>" | awk '{print substr($0, 2, length($0)-5)}' | tr " " "_")"
# Add the content of this post to the tag file
cat "$tmpfile" >> "$prefix_tags$tag".tmp.html
done
done
fi
done < "$tmpfile"
rm "$tmpfile"
done
# Now generate the tag files with headers, footers, etc
for i in $(ls -t $prefix_tags*.tmp.html); do
tagname="$(echo $i | cut -c $((${#prefix_tags}+1))- | sed 's/\.tmp\.html//g')"
create_html_page "$i" "$prefix_tags$tagname.html" yes "$global_title &mdash; $template_tag_title \"$tagname\""
rm "$i"
done
echo
}
# Return the post title
#
# $1 the html file
get_post_title() {
awk '/<h3><a class="ablack" href=".+">/, /<\/a><\/h3>/{if (!/<h3><a class="ablack" href=".+">/ && !/<\/a><\/h3>/) print}' "$1"
}
# Displays a list of the posts
list_posts() {
ls *.html &> /dev/null
[[ $? -ne 0 ]] && echo "No posts yet. Use 'bb.sh post' to create one" && return
lines=""
n=1
for i in $(ls -t *.html); do
is_boilerplate_file "$i" && continue
line="$n # $(get_post_title "$i") # $(LC_ALL=$date_locale date -r $i +"$date_format")"
lines="${lines}""$line""\n" # Weird stuff needed for the newlines
n=$(( $n + 1 ))
done
echo -e "$lines" | column -t -s "#"
}
# Generate the feed file
make_rss() {
echo -n "Making RSS "
rssfile="$blog_feed.$RANDOM"
while [ -f "$rssfile" ]; do rssfile="$blog_feed.$RANDOM"; done
echo '<?xml version="1.0" encoding="UTF-8" ?>' >> "$rssfile"
echo '<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:dc="http://purl.org/dc/elements/1.1/">' >> "$rssfile"
echo '<channel><title>'$global_title'</title><link>'$global_url'</link>' >> "$rssfile"
echo '<description>'$global_description'</description><language>en</language>' >> "$rssfile"
echo '<lastBuildDate>'$(date +"%a, %d %b %Y %H:%M:%S %z")'</lastBuildDate>' >> "$rssfile"
echo '<pubDate>'$(date +"%a, %d %b %Y %H:%M:%S %z")'</pubDate>' >> "$rssfile"
echo '<atom:link href="'$global_url/$blog_feed'" rel="self" type="application/rss+xml" />' >> "$rssfile"
n=0
for i in $(ls -t *.html); do
is_boilerplate_file "$i" && continue
[[ "$n" -ge "$number_of_feed_articles" ]] && break # max 10 items
echo -n "."
echo '<item><title>' >> "$rssfile"
echo "$(awk '/<h3><a class="ablack" href=".+">/, /<\/a><\/h3>/{if (!/<h3><a class="ablack" href=".+">/ && !/<\/a><\/h3>/) print}' $i)" >> "$rssfile"
echo '</title><description><![CDATA[' >> "$rssfile"
echo "$(get_html_file_content 'text' 'entry' 'cut' <$i)" >> "$rssfile"
echo "]]></description><link>$global_url/$i</link>" >> "$rssfile"
echo "<guid>$global_url/$i</guid>" >> "$rssfile"
echo "<dc:creator>$global_author</dc:creator>" >> "$rssfile"
echo '<pubDate>'$(date -r "$i" +"%a, %d %b %Y %H:%M:%S %z")'</pubDate></item>' >> "$rssfile"
n=$(( $n + 1 ))
done
echo '</channel></rss>' >> "$rssfile"
echo ""
mv "$rssfile" "$blog_feed"
chmod 644 "$blog_feed"
}
# generate headers, footers, etc
create_includes() {
echo '<h1 class="nomargin"><a class="ablack" href="'$global_url'">'$global_title'</a></h1>' > ".title.html"
echo '<div id="description">'$global_description'</div>' >> ".title.html"
if [[ -f "$header_file" ]]; then cp "$header_file" .header.html
else
echo '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">' > ".header.html"
echo '<html xmlns="http://www.w3.org/1999/xhtml"><head>' >> ".header.html"
echo '<meta http-equiv="Content-type" content="text/html;charset=UTF-8" />' >> ".header.html"
echo '<link rel="stylesheet" href="main.css" type="text/css" />' >> ".header.html"
echo '<link rel="stylesheet" href="blog.css" type="text/css" />' >> ".header.html"
if [[ "$global_feedburner" == "" ]]; then
echo '<link rel="alternate" type="application/rss+xml" title="'$template_subscribe_browser_button'" href="'$blog_feed'" />' >> ".header.html"
else
echo '<link rel="alternate" type="application/rss+xml" title="'$template_subscribe_browser_button'" href="'$global_feedburner'" />' >> ".header.html"
fi
fi
if [[ -f "$footer_file" ]]; then cp "$footer_file" .footer.html
else
protected_mail="$(echo "$global_email" | sed 's/@/\&#64;/g' | sed 's/\./\&#46;/g')"
echo '<div id="footer">'$global_license '<a href="'$global_author_url'">'$global_author'</a> &mdash; <a href="mailto:'$protected_mail'">'$protected_mail'</a><br/>' >> ".footer.html"
echo 'Generated with <a href="https://github.com/cfenollosa/bashblog">bashblog</a>, a single bash script to easily create blogs like this one</div>' >> ".footer.html"
fi
}
# Delete the temporarily generated include files
delete_includes() {
rm ".title.html" ".footer.html" ".header.html"
}
# Create the css file from scratch
create_css() {
# To avoid overwriting manual changes. However it is recommended that
# this function is modified if the user changes the blog.css file
if [[ ! -f "blog.css" ]]; then
# blog.css directives will be loaded after main.css and thus will prevail
echo '#title{font-size: x-large;}
a.ablack{color:black !important;}
li{margin-bottom:8px;}
ul,ol{margin-left:24px;margin-right:24px;}
#all_posts{margin-top:24px;text-align:center;}
.subtitle{font-size:small;margin:12px 0px;}
.content p{margin-left:24px;margin-right:24px;}
h1{margin-bottom:12px !important;}
#description{font-size:large;margin-bottom:12px;}
h3{margin-top:42px;margin-bottom:8px;}
h4{margin-left:24px;margin-right:24px;}
#twitter{line-height:20px;vertical-align:top;text-align:right;font-style:italic;color:#333;margin-top:24px;font-size:14px;}' > blog.css
fi
# If there is a style.css from the parent page (i.e. some landing page)
# then use it. This directive is here for compatibility with my own
# home page. Feel free to edit it out, though it doesn't hurt
if [[ -f "../style.css" ]] && [[ ! -f "main.css" ]]; then
ln -s "../style.css" "main.css"
elif [[ ! -f "main.css" ]]; then
echo 'body{font-family:Georgia,"Times New Roman",Times,serif;margin:0;padding:0;background-color:#F3F3F3;}
#divbodyholder{padding:5px;background-color:#DDD;width:874px;margin:24px auto;}
#divbody{width:776px;border:solid 1px #ccc;background-color:#fff;padding:0px 48px 24px 48px;top:0;}
.headerholder{background-color:#f9f9f9;border-top:solid 1px #ccc;border-left:solid 1px #ccc;border-right:solid 1px #ccc;}
.header{width:800px;margin:0px auto;padding-top:24px;padding-bottom:8px;}
.content{margin-bottom:45px;}
.nomargin{margin:0;}
.description{margin-top:10px;border-top:solid 1px #666;padding:10px 0;}
h3{font-size:20pt;width:100%;font-weight:bold;margin-top:32px;margin-bottom:0;}
.clear{clear:both;}
#footer{padding-top:10px;border-top:solid 1px #666;color:#333333;text-align:center;font-size:small;font-family:"Courier New","Courier",monospace;}
a{text-decoration:none;color:#003366 !important;}
a:visited{text-decoration:none;color:#336699 !important;}
blockquote{background-color:#f9f9f9;border-left:solid 4px #e9e9e9;margin-left:12px;padding:12px 12px 12px 24px;}
blockquote img{margin:12px 0px;}
blockquote iframe{margin:12px 0px;}' > main.css
fi
}
# Regenerates all the single post entries, keeping the post content but modifying
# the title, html structure, etc
rebuild_all_entries() {
echo -n "Rebuilding all entries "
for i in *.html; do # no need to sort
is_boilerplate_file "$i" && continue;
contentfile=".tmp.$RANDOM"
while [ -f "$contentfile" ]; do contentfile=".tmp.$RANDOM"; done
echo -n "."
# Get the title and entry, and rebuild the html structure from scratch (divs, title, description...)
title="$(get_post_title "$i")"
get_html_file_content 'text' 'text' <$i >> "$contentfile"
# Original post timestamp
timestamp="$(LC_ALL=$date_locale date -r $i +"%a, %d %b %Y %H:%M:%S %z" )"
create_html_page "$contentfile" "$i.rebuilt" no "$title" "$timestamp"
# keep the original timestamp!
timestamp="$(LC_ALL=$date_locale date -r $i +'%Y%m%d%H%M')"
mv "$i.rebuilt" "$i"
chmod 644 "$i"
touch -t $timestamp "$i"
rm "$contentfile"
done
echo ""
}
# Displays the help
function usage() {
echo "$global_software_name v$global_software_version"
echo "Usage: $0 command [filename]"
echo ""
echo "Commands:"
echo " post [-m] [filename] insert a new blog post, or the filename of a draft to continue editing it"
echo " use '-m' to edit the post as Markdown text"
echo " edit [filename] edit an already published .html file. **NEVER** edit manually a published .html file,"
echo " always use this function as it keeps internal data and rebuilds the blog"
echo " delete [filename] deletes the post and rebuilds the blog"
echo " rebuild regenerates all the pages and posts, preserving the content of the entries"
echo " reset deletes everything except this script. Use with a lot of caution and back up first!"
echo " list list all posts"
echo ""
echo "For more information please open $0 in a code editor and read the header and comments"
}
# Delete all generated content, leaving only this script
reset() {
echo "Are you sure you want to delete all blog entries? Please write \"Yes, I am!\" "
read line
if [[ "$line" == "Yes, I am!" ]]; then
rm .*.html *.html *.css *.rss &> /dev/null
echo
echo "Deleted all posts, stylesheets and feeds."
echo "Kept your old '.backup.tar.gz' just in case, please delete it manually if needed."
else
echo "Phew! You dodged a bullet there. Nothing was modified."
fi
}
# Detects if GNU date is installed
date_version_detect() {
date --version >/dev/null 2>&1
if [[ $? -ne 0 ]]; then
# date utility is BSD. Test if gdate is installed
if gdate --version >/dev/null 2>&1 ; then
date() {
gdate "$@"
}
else
# BSD date
date() {
if [[ "$1" == "-r" ]]; then
# Fall back to using stat for 'date -r'
format=$(echo $3 | sed 's/\+//g')
stat -f "%Sm" -t "$format" "$2"
elif [[ $(echo $@ | grep '\-\-date') ]]; then
# convert between dates using BSD date syntax
/bin/date -j -f "%a, %d %b %Y %H:%M:%S %z" "$(echo $2 | sed 's/\-\-date\=//g')" "$1"
else
# acceptable format for BSD date
/bin/date -j "$@"
fi
}
fi
fi
}
# Main function
# Encapsulated on its own function for readability purposes
#
# $1 command to run
# $2 file name of a draft to continue editing (optional)
do_main() {
# Detect if using BSD date or GNU date
date_version_detect
# Load default configuration, then override settings with the config file
global_variables
[[ -f "$global_config" ]] && source "$global_config" &> /dev/null
global_variables_check
# Check for $EDITOR
[[ -z "$EDITOR" ]] &&
echo "Please set your \$EDITOR environment variable" && exit
# Check for validity of argument
[[ "$1" != "reset" ]] && [[ "$1" != "post" ]] && [[ "$1" != "rebuild" ]] && [[ "$1" != "list" ]] && [[ "$1" != "edit" ]] && [[ "$1" != "delete" ]] &&
usage && exit
[[ "$1" == "list" ]] &&
list_posts && exit
if [[ "$1" == "edit" ]]; then
if [[ $# -lt 2 ]] || [[ ! -f "$2" ]]; then
echo "Please enter a valid html file to edit"
exit
fi
fi
# Test for existing html files
ls *.html &> /dev/null
[[ $? -ne 0 ]] && [[ "$1" == "rebuild" ]] &&
echo "Can't find any html files, nothing to rebuild" && exit
# We're going to back up just in case
ls *.html &> /dev/null
[[ $? -eq 0 ]] &&
tar cfz ".backup.tar.gz" *.html &&
chmod 600 ".backup.tar.gz"
[[ "$1" == "reset" ]] &&
reset && exit
create_includes
create_css
[[ "$1" == "post" ]] && write_entry "$@"
[[ "$1" == "rebuild" ]] && rebuild_all_entries
[[ "$1" == "edit" ]] && edit "$2"
[[ "$1" == "delete" ]] && rm "$2" &> /dev/null
rebuild_index
all_posts
rebuild_tags
all_tags
make_rss
delete_includes
}
#
# MAIN
# Do not change anything here. If you want to modify the code, edit do_main()
#
do_main $*
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