#!/usr/bin/env bash # BashBlog, a simple blog system written in a single bash script # (C) Carlos Fenollosa , 2011-2016 and contributors # https://github.com/carlesfe/bashblog/contributors # Check out README.md for more details # 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 overridden # by the 'global_config' file contents global_variables() { global_software_name="BashBlog" global_software_version="2.5" # 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 "©" 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="" # Set this to false for a Twitter button with share count. The cookieless version # is just a link. global_twitter_cookieless="true" # Default search page, where tweets more than a week old are hidden global_twitter_search="twitter" # 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" # "cut" blog entry when putting it to index page. Leave blank for full articles in front page # i.e. include only up to first '
', or '----' in markdown cut_do="cut" # When cutting, cut also tags? If "no", tags will appear in index page for cut articles cut_tags="yes" # Regexp matching the HTML line where to do the cut # note that slash is regexp separator so you need to prepend it with backslash cut_line='
' # save markdown file when posting with "bb post -m". Leave blank to discard it. save_markdown="yes" # 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 tag # and before the actual blog content body_begin_file="" # CSS files to include on every page, f.ex. css_include=('main.css' 'blog.css') # leave empty to use generated css_include=() # HTML files to exclude from index, f.ex. post_exclude=('imprint.html 'aboutme.html') html_exclude=() # Localization and i18n # "Comments?" (used in twitter link after every post) template_comments="Comments?" # "Read more..." (link under cut article on index page) template_read_more="Read more..." # "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" template_tags_posts_singular="post" # "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="<Type your comment here but please leave the URL so that other people can follow the comments>" # The locale to use for the dates displayed on screen (not for the timestamps) date_format="%B %d, %Y" date_allposts_header="%B %Y" date_locale="C" # Perform the post title -> filename conversion # Experts only. You may need to tune the locales too # Leave empty for no conversion, which is not recommended # This default filter respects backwards compatibility convert_filename="iconv -f utf-8 -t ascii//translit | sed 's/^-*//' | tr [:upper:] [:lower:] | tr ' ' '-' | tr -dc '[:alnum:]-'" # URL where you can view the post while it's being edited # same as global_url by default # You can change it to path on your computer, if you write posts locally # before copying them to the server preview_url="" # Markdown location. Trying to autodetect by default. # The invocation must support the signature 'markdown_bin in.md > out.html' markdown_bin=$(which Markdown.pl || which markdown) } # 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() { [[ -n $markdown_bin ]] && [[ $("$markdown_bin" <<< $'line 1\n\nline 2') == $'

line 1

\n\n

line 2

' ]] } # Parse a Markdown file into HTML and return the generated file markdown() { out=${1%.md}.html while [[ -f $out ]]; do out=${out%.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 $global_analytics_file ]]; then echo "" else cat "$global_analytics_file" fi } # Prints the required code for disqus comments disqus_body() { [[ -z $global_disqus_username ]] && return echo '
comments powered by Disqus' } # Prints the required code for disqus in the footer disqus_footer() { [[ -z $global_disqus_username ]] && return echo '' } # 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
to # note that this does not remove
line itself, # so you can see if text was cut or not get_html_file_content() { awk "//, //{ if (!// && !//) print if (\"$3\" == \"cut\" && /$cut_line/){ if (\"$2\" == \"text\") exit # no need to read further while (getline > 0 && !//) { if (\"$cut_tags\" == \"no\" && /^

$template_tags_line_header/ ) print } } }" } # 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'. # # Note that it edits HTML file, even if you wrote the post as markdown originally # Note that if you edit title then filename might also change # # $1 the file to edit # $2 (optional) edit mode: # "keep" to keep old filename # "full" to edit full HTML, and not only text part (keeps old filename) # leave empty for default behavior (edit only text part and change name) edit() { # Original post timestamp edit_timestamp=$(LC_ALL=C date -r "${1%%.*}.html" +"%a, %d %b %Y %H:%M:%S %z" ) touch_timestamp=$(LC_ALL=C date -r "${1%%.*}.html" +'%Y%m%d%H%M') tags_before=$(tags_in_post "${1%%.*}.html") if [[ $2 == full ]]; then $EDITOR "$1" filename=$1 else if [[ ${1##*.} == md ]]; then test_markdown if (($? != 0)); then echo "Markdown is not working, please edit HTML file directly." exit fi # editing markdown file $EDITOR "$1" TMPFILE=$(markdown "$1") filename=${1%%.*}.html else # Create the content file TMPFILE=$(basename "$1").$RANDOM.html # Title get_post_title "$1" > "$TMPFILE" # Post text with plaintext tags get_html_file_content 'text' 'text' <"$1" | sed "/^

$template_tags_line_header/s|\\1|\\1|g" >> "$TMPFILE" $EDITOR "$TMPFILE" filename=$1 fi rm "$filename" if [[ $2 == keep ]]; then parse_file "$TMPFILE" "$edit_timestamp" "$filename" else parse_file "$TMPFILE" "$edit_timestamp" # this command sets $filename as the html processed file [[ ${1##*.} == md ]] && mv "$1" "${filename%%.*}.md" 2>/dev/null fi rm "$TMPFILE" fi touch -t "$touch_timestamp" "$filename" chmod 644 "$filename" echo "Posted $filename" tags_after=$(tags_in_post "$filename") relevant_tags=$(echo "$tags_before $tags_after" | tr ',' ' ' | tr ' ' '\n' | sort -u | tr '\n' ' ') if [[ ! -z $relevant_tags ]]; then relevant_posts="$(posts_with_tags $relevant_tags) $filename" rebuild_tags "$relevant_posts" "$relevant_tags" fi } # Create a Twitter summary (twitter "card") for the post # # $1 the post file # $2 the title twitter_card() { [[ -z $global_twitter_username ]] && return echo "" echo "" echo "" # Twitter truncates at 70 char description=$(grep -v "^

$template_tags_line_header" "$1" | sed -e 's/<[^>]*>//g' | head -c 250 | tr '\n' ' ' | sed "s/\"/'/g") echo "" image=$(sed -n 's/.*" } # Adds the code needed by the twitter button # # $1 the post URL twitter() { [[ -z $global_twitter_username ]] && return if [[ -z $global_disqus_username ]]; then if [[ $global_twitter_cookieless == true ]]; then id=$RANDOM search_engine="https://twitter.com/search?q=" echo "

$template_comments $template_twitter_button " echo " 

" # Get current tweet count echo "" return; else echo "

$template_comments "; fi else echo "

$template_comments  " fi echo "$template_twitter_button " echo "

" } # 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 && continue # # $1 the file # # Return 0 (bash return value 'true') if the input file is an index, feed, etc # or 1 (bash return value 'false') if it is a blogpost is_boilerplate_file() { name=${1#./} case $name in ( "$index_file" | "$archive_index" | "$tags_index" | "$footer_file" | "$header_file" | "$global_analytics_file" | "$prefix_tags"* ) return 0 ;; ( * ) # Check for excluded for excl in "${html_exclude[@]}"; do [[ $name == "$excl" ]] && return 0 done return 1 ;; esac } # Adds all the bells and whistles to format the html page # Every blog post is marked with a and # which is parsed afterwards in the other functions. There is also a marker # 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=$5 # Create the actual blog post # html, head { cat ".header.html" echo "$title" google_analytics twitter_card "$content" "$title" echo "" # stuff to add before the actual body content [[ -n $body_begin_file ]] && cat "$body_begin_file" # body divs echo '
' echo '
' # blog title echo '
' cat .title.html echo '
' # title, header, headerholder echo '
' file_url=${filename#./} file_url=${file_url%.rebuilt} # Get the correct URL when rebuilding # one blog entry if [[ $index == no ]]; then echo '' # marks the beginning of the whole post echo "

" # remove possible

's on the title because of markdown conversion title=${title//

/} title=${title//<\/p>/} echo "$title" echo '

' if [[ -z $timestamp ]]; then echo "
$(LC_ALL=$date_locale date +"$date_format") — " else echo "
$(LC_ALL=$date_locale date +"$date_format" --date="$timestamp") — " fi echo "$global_author
" echo '' # This marks the text body, after the title, date... fi cat "$content" # Actual content if [[ $index == no ]]; then echo -e '\n' twitter "$global_url/$file_url" echo '' # absolute end of the post fi echo '
' # content # Add disqus commments except for index and all_posts pages [[ $index == no ]] && disqus_body # page footer cat .footer.html # close divs echo '
' # divbody and divbodyholder disqus_footer echo '' } > "$filename" } # Parse the plain text file into an html file # # $1 source file name # $2 (optional) timestamp for the file # $3 (optional) destination file name # note that although timestamp is optional, something must be provided at its # place if destination file name is provided, i.e: # parse_file source.txt "" destination.html parse_file() { # Read for the title and check that the filename is ok title="" while IFS='' read -r line; do if [[ -z $title ]]; then # remove extra

and

added by markdown title=$(echo "$line" | sed 's/<\/*p>//g') if [[ -n $3 ]]; then filename=$3 else filename=$title [[ -n $convert_filename ]] && filename=$(echo "$title" | eval "$convert_filename") [[ -n $filename ]] || filename=$RANDOM # don't allow empty filenames filename=$filename.html # Check for duplicate file names while [[ -f $filename ]]; do filename=${filename%.html}$RANDOM.html done fi content=$filename.tmp # Parse possible tags elif [[ $line == "

$template_tags_line_header"* ]]; then tags=$(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 "

$template_tags_line_header " >> "$content" for item in "${array[@]}"; do echo -n "$item, " done | sed 's/, $/<\/p>/g' >> "$content" else echo "$line" >> "$content" fi done < "$1" # Create the actual html page create_html_page "$content" "$filename" no "$title" "$2" rm "$content" } # Manages the creation of the text file and the parsing to html file # also the drafts write_entry() { test_markdown && fmt=md || fmt=html f=$2 [[ $2 == -html ]] && fmt=html && f=$3 if [[ -n $f ]]; then TMPFILE=$f if [[ ! -f $TMPFILE ]]; then echo "The file doesn't exist" delete_includes exit fi # guess format from TMPFILE extension=${TMPFILE##*.} [[ $extension == md || $extension == html ]] && fmt=$extension # but let user override it (`bb.sh post -html file.md`) [[ $2 == -html ]] && fmt=html # Test if Markdown is working before re-posting a .md file if [[ $extension == md ]]; then test_markdown if (($? != 0)); then echo "Markdown is not working, please edit HTML file directly." exit fi fi else TMPFILE=.entry-$RANDOM.$fmt echo -e "Title on this line\n" >> "$TMPFILE" [[ $fmt == html ]] && cat << EOF >> "$TMPFILE"

The rest of the text file is an html blog post. The process will continue as soon as you exit your editor.

$template_tags_line_header keep-this-tag-format, tags-are-optional, example

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" filename="" while [[ $post_status != "p" && $post_status != "P" ]]; do [[ -n $filename ]] && rm "$filename" # Delete the generated html file, if any $EDITOR "$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 $filename as the html processed file fi chmod 644 "$filename" [[ -n $preview_url ]] || preview_url=$global_url echo "To preview the entry, open $preview_url/$filename in your browser" echo -n "[P]ost this entry, [E]dit again, [D]raft for later? (p/E/d) " read -r post_status if [[ $post_status == d || $post_status == D ]]; then mkdir -p "drafts/" chmod 700 "drafts/" title=$(head -n 1 $TMPFILE) [[ -n $convert_filename ]] && title=$(echo "$title" | eval "$convert_filename") [[ -n $title ]] || title=$RANDOM draft=drafts/$title.$fmt mv "$TMPFILE" "$draft" chmod 600 "$draft" rm "$filename" delete_includes echo "Saved your draft as '$draft'" exit fi done if [[ $fmt == md && -n $save_markdown ]]; then mv "$TMPFILE" "${filename%%.*}.md" else rm "$TMPFILE" fi chmod 644 "$filename" echo "Posted $filename" relevant_tags=$(tags_in_post $filename) if [[ -n $relevant_tags ]]; then relevant_posts="$(posts_with_tags $relevant_tags) $filename" rebuild_tags "$relevant_posts" "$relevant_tags" fi } # Create an index page with all the posts all_posts() { echo -n "Creating an index page with all the posts " contentfile=$archive_index.$RANDOM while [[ -f $contentfile ]]; do contentfile=$archive_index.$RANDOM done { echo "

$template_archive_title

" prev_month="" while IFS='' read -r i; do is_boilerplate_file "$i" && continue echo -n "." 1>&3 # Month headers month=$(LC_ALL=$date_locale date -r "$i" +"$date_allposts_header") if [[ $month != "$prev_month" ]]; then [[ -n $prev_month ]] && echo "" # Don't close ul before first header echo "

$month

" echo "
    " prev_month=$month fi # Title title=$(get_post_title "$i") echo -n "
  • $title —" # Date date=$(LC_ALL=$date_locale date -r "$i" +"$date_format") echo " $date
    • " done < <(ls -t ./*.html) echo "" 1>&3 echo "
" echo "" } 3>&1 >"$contentfile" create_html_page "$contentfile" "$archive_index.tmp" yes "$global_title — $template_archive_title" mv "$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 "

$template_tags_title

" echo "
    " for i in $prefix_tags*.html; do [[ -f "$i" ]] || break echo -n "." 1>&3 nposts=$(grep -c "<\!-- text begin -->" "$i") tagname=${i#"$prefix_tags"} tagname=${tagname%.html} ((nposts > 1)) && word=$template_tags_posts || word=$template_tags_posts_singular echo "
  • $tagname — $nposts $word
    • " done echo "" 1>&3 echo "
" echo "" } 3>&1 > "$contentfile" create_html_page "$contentfile" "$tags_index.tmp" yes "$global_title — $template_tags_title" mv "$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 while IFS='' read -r i; do is_boilerplate_file "$i" && continue; if ((n >= number_of_index_articles)); then break; fi if [[ -n $cut_do ]]; then get_html_file_content 'entry' 'entry' 'cut' <"$i" | awk "/$cut_line/ { print \"

$template_read_more

\" ; next } 1" else get_html_file_content 'entry' 'entry' <"$i" fi echo -n "." 1>&3 n=$(( n + 1 )) done < <(ls -t ./*.html) # sort by date, newest first feed=$blog_feed if [[ -n $global_feedburner ]]; then feed=$global_feedburner; fi echo "" } 3>&1 >"$contentfile" echo "" create_html_page "$contentfile" "$newindexfile" yes "$global_title" rm "$contentfile" mv "$newindexfile" "$index_file" chmod 644 "$index_file" } # Finds all tags referenced in one post. # Accepts either filename as first argument, or post content at stdin # Prints one line with space-separated tags to stdout tags_in_post() { sed -n "/^

$template_tags_line_header/{s/^

$template_tags_line_header//;s/<[^>]*>//g;s/[ ,]\+/ /g;p;}" "$1" | tr ', ' ' ' } # Finds all posts referenced in a number of tags. # Arguments are tags # Prints one line with space-separated tags to stdout posts_with_tags() { (($# < 1)) && return set -- "${@/#/$prefix_tags}" set -- "${@/%/.html}" sed -n '/^

/{s/.*href="\([^"]*\)">.*/\1/;p;}' "$@" 2> /dev/null } # Rebuilds tag_*.html files # if no arguments given, rebuilds all of them # if arguments given, they should have this format: # "FILE1 [FILE2 [...]]" "TAG1 [TAG2 [...]]" # where FILEn are files with posts which should be used for rebuilding tags, # and TAGn are names of tags which should be rebuilt. # example: # rebuild_tags "one_post.html another_article.html" "example-tag another-tag" # mind the quotes! rebuild_tags() { if (($# < 2)); then # will process all files and tags files=$(ls -t ./*.html) all_tags=yes else # will process only given files and tags files=$(printf '%s\n' $1 | sort -u) files=$(ls -t $files) tags=$2 fi echo -n "Rebuilding tag pages " n=0 if [[ -n $all_tags ]]; then rm ./"$prefix_tags"*.html &> /dev/null else for i in $tags; do rm "./$prefix_tags$i.html" &> /dev/null done fi # First we will process all files and create temporal tag files # with just the content of the posts tmpfile=tmp.$RANDOM while [[ -f $tmpfile ]]; do tmpfile=tmp.$RANDOM; done while IFS='' read -r i; do is_boilerplate_file "$i" && continue; echo -n "." if [[ -n $cut_do ]]; then get_html_file_content 'entry' 'entry' 'cut' <"$i" | awk "/$cut_line/ { print \"

$template_read_more

\" ; next } 1" else get_html_file_content 'entry' 'entry' <"$i" fi >"$tmpfile" for tag in $(tags_in_post "$i"); do if [[ -n $all_tags || " $tags " == *" $tag "* ]]; then cat "$tmpfile" >> "$prefix_tags$tag".tmp.html fi done done <<< "$files" rm "$tmpfile" # Now generate the tag files with headers, footers, etc while IFS='' read -r i; do tagname=${i#./"$prefix_tags"} tagname=${tagname%.tmp.html} create_html_page "$i" "$prefix_tags$tagname.html" yes "$global_title — $template_tag_title \"$tagname\"" rm "$i" done < <(ls -t ./"$prefix_tags"*.tmp.html 2>/dev/null) echo } # Return the post title # # $1 the html file get_post_title() { awk '/

/, /<\/a><\/h3>/{if (!/

/ && !/<\/a><\/h3>/) print}' "$1" } # Displays a list of the tags # # $2 if "-n", tags will be sorted by number of posts list_tags() { if [[ $2 == -n ]]; then do_sort=1; else do_sort=0; fi ls ./$prefix_tags*.html &> /dev/null (($? != 0)) && echo "No posts yet. Use 'bb.sh post' to create one" && return lines="" for i in $prefix_tags*.html; do [[ -f "$i" ]] || break nposts=$(grep -c "<\!-- text begin -->" "$i") tagname=${i#"$prefix_tags"} tagname=${tagname#.html} ((nposts > 1)) && word=$template_tags_posts || word=$template_tags_posts_singular line="$tagname # $nposts # $word" lines+=$line\\n done if (( do_sort == 1 )); then echo -e "$lines" | column -t -s "#" | sort -nrk 2 else echo -e "$lines" | column -t -s "#" fi } # Displays a list of the posts list_posts() { ls ./*.html &> /dev/null (($? != 0)) && echo "No posts yet. Use 'bb.sh post' to create one" && return lines="" n=1 while IFS='' read -r i; do is_boilerplate_file "$i" && continue line="$n # $(get_post_title "$i") # $(LC_ALL=$date_locale date -r "$i" +"$date_format")" lines+=$line\\n n=$(( n + 1 )) done < <(ls -t ./*.html) 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.$RANDOM; done { pubdate=$(LC_ALL=C date +"%a, %d %b %Y %H:%M:%S %z") echo '' echo '' echo "$global_title$global_url/$index_file" echo "$global_descriptionen" echo "$pubdate" echo "$pubdate" echo "" n=0 while IFS='' read -r i; do is_boilerplate_file "$i" && continue ((n >= number_of_feed_articles)) && break # max 10 items echo -n "." 1>&3 echo '' get_post_title "$i" echo '$global_url/${i#./}" echo "$global_url/$i" echo "$global_author" echo "$(LC_ALL=C date -r "$i" +"%a, %d %b %Y %H:%M:%S %z")" n=$(( n + 1 )) done < <(ls -t ./*.html) echo '' } 3>&1 >"$rssfile" echo "" mv "$rssfile" "$blog_feed" chmod 644 "$blog_feed" } # generate headers, footers, etc create_includes() { { echo "

$global_title

" echo "
$global_description
" } > ".title.html" if [[ -f $header_file ]]; then cp "$header_file" .header.html else { echo '' echo '' echo '' echo '' printf '\n' "${css_include[@]}" if [[ -z $global_feedburner ]]; then echo "" else echo "" fi } > ".header.html" fi if [[ -f $footer_file ]]; then cp "$footer_file" .footer.html else { protected_mail=${global_email//@/@} protected_mail=${protected_mail//./.} echo "
$global_license $global_author — $protected_mail
" echo 'Generated with bashblog, a single bash script to easily create blogs like this one
' } >> ".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 (( ${#css_include[@]} > 0 )) && return || css_include=('main.css' 'blog.css') 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:100%;max-width:874px;margin:24px auto;} #divbody{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:100%;max-width:800px;margin:0px auto;padding-top:24px;padding-bottom:8px;} .content{margin-bottom:5%;} .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=$(LC_ALL=C date -r "$i" +"%a, %d %b %Y %H:%M:%S %z" ) create_html_page "$contentfile" "$i.rebuilt" no "$title" "$timestamp" # keep the original timestamp! timestamp=$(LC_ALL=C date -r "$i" +'%Y%m%d%H%M') mv "$i.rebuilt" "$i" chmod 644 "$i" touch -t "$timestamp" "$i" rm "$contentfile" done echo "" } # Displays the help usage() { echo "$global_software_name v$global_software_version" echo "Usage: $0 command [filename]" echo "" echo "Commands:" echo " post [-html] [filename] insert a new blog post, or the filename of a draft to continue editing it" echo " it tries to use markdown by default, and falls back to HTML if it's not available." echo " use '-html' to override it and edit the post as HTML even when markdown is available" echo " edit [-n|-f] [filename] edit an already published .html or .md file. **NEVER** edit manually a published .html file," echo " always use this function as it keeps internal data and rebuilds the blog" echo " use '-n' to give the file a new name, if title was changed" echo " use '-f' to edit full html file, instead of just text part (also preserves name)" 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 " tags [-n] list all tags in alphabetical order" echo " use '-n' to sort list by number of 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 -r line if [[ $line == "Yes, I am!" ]]; then rm .*.html ./*.html ./*.css ./*.rss &> /dev/null echo echo "Deleted all posts, stylesheets and feeds." echo "Kept your old '.backup.tar.gz' just in case, please delete it manually if needed." else echo "Phew! You dodged a bullet there. Nothing was modified." fi } # Detects if GNU date is installed date_version_detect() { date --version >/dev/null 2>&1 if (($? != 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 [[ $1 == -r ]]; then # Fall back to using stat for 'date -r' format=${3//+/} stat -f "%Sm" -t "$format" "$2" elif [[ $2 == --date* ]]; then # convert between dates using BSD date syntax command date -j -f "%a, %d %b %Y %H:%M:%S %z" "${2#--date=}" "$1" else # acceptable format for BSD date command date -j "$@" 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" && $1 != "tags" ]] && usage && exit [[ $1 == list ]] && list_posts && exit [[ $1 == tags ]] && list_tags "$@" && exit if [[ $1 == edit ]]; then if (($# < 2)) || [[ ! -f ${!#} ]]; then echo "Please enter a valid .md or .html file to edit" exit fi fi # Test for existing html files if ls ./*.html &> /dev/null; then # We're going to back up just in case tar -c -z -f ".backup.tar.gz" -- *.html && chmod 600 ".backup.tar.gz" elif [[ $1 == rebuild ]]; then echo "Can't find any html files, nothing to rebuild" exit fi # Keep first backup of this day containing yesterday's version of the blog [[ ! -f .yesterday.tar.gz || $(date -r .yesterday.tar.gz +'%d') != "$(date +'%d')" ]] && cp .backup.tar.gz .yesterday.tar.gz &> /dev/null [[ $1 == reset ]] && reset && exit create_css create_includes [[ $1 == post ]] && write_entry "$@" [[ $1 == rebuild ]] && rebuild_all_entries && rebuild_tags [[ $1 == delete ]] && rm "$2" &> /dev/null && rebuild_tags if [[ $1 == edit ]]; then if [[ $2 == -n ]]; then edit "$3" elif [[ $2 == -f ]]; then edit "$3" full else edit "$2" keep fi fi rebuild_index all_posts all_tags make_rss delete_includes } # # MAIN # Do not change anything here. If you want to modify the code, edit do_main() # do_main "$@" # vim: set shiftwidth=4 tabstop=4 expandtab: