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	generate.sh - static-site-scripts - static site generator shellscripts
	git clone git://git.codemadness.org/static-site-scripts
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	---
	generate.sh (8477B)
	---
	1 #!/bin/sh
	2 # site title (part of ${pagetitle} probably).
	3 sitetitle="Codemadness"
	4 # site language.
	5 sitelang="en"
	6 # main site domain.
	7 sitedomain="http://www.codemadness.nl"
	8 # relative site url, can be "/blog" or something.
	9 siteurlrel=""
	10 # full site url.
	11 siteurlfull="${sitedomain}${siteurlrel}"
	12 # site keywords (global default), don't use too many.
	13 sitekeywords="blog, suckless, dwm-hiltjo"
	14 # site description (global default).
	15 sitedescription="blog with various projects and articles about computer-…
	16 # site mail used for contact "mail link".
	17 sitemail="hiltjo@[email protected]"
	18 # site author (global).
	19 siteauthor="hiltjo"
	20 # site last updated (default use date when script was run).
	21 siteupdated=$(date "+%Y-%m-%dT%H:%M:%SZ")
	22 # directories containing content and metadata.
	23 # NOTE: it's recommended to use absolute paths here, use "." for current…
	24 pagesdir="pages"
	25 # Output dir.
	26 outputdir="output"
	27 # Markdown processor: default: is "smu".
	28 markdown="smu"
	29
	30 #gnudate(fmt,date)
	31 gnudate() {
	32 date "+$1" -d "$2"
	33 }
	34
	35 #bsddate(fmt,date)
	36 bsddate() {
	37 date -j "+$1" "$(printf '%s' "$2" \| tr -Cd '[:digit:]')"
	38 }
	39
	40 # added for compatibility with GNU and BSD date.
	41 alias formatdate='gnudate'
	42 if ! gnudate '%Y' '2015-01-01 00:00' 2>/dev/null; then
	43 alias formatdate='bsddate'
	44 fi
	45
	46 #makeid(title), format "Some title" to "some-title".
	47 makeid() {
	48 printf '%s\n' "$1" \| tr '[:upper:]' '[:lower:]' \| \
	49 sed -e 's@[^[:alnum:]]\{1,\}@-@g' -e 's@-*$@@g' -e 's@^-…
	50 }
	51
	52 # initial values for page variables, use some site vars as global defaul…
	53 pagereset() {
	54 id=""
	55 title=""
	56 url=""
	57 description="${sitedescription}"
	58 keywords="${sitekeywords}"
	59 author="${siteauthor}"
	60 content=""
	61 tags=""
	62 categories=""
	63 timecreated=""
	64 datecreated=""
	65 timeupdated=""
	66 dateupdated=""
	67 }
	68
	69 pageread() {
	70 meta="$1"
	71 . "${meta}" # source page metadata.
	72 basename=$(basename "${meta}" ".sh")
	73 datecreated=$(printf '%s' "${timecreated}" \| cut -b 1-10)
	74 dateupdated=$(printf '%s' "${timeupdated}" \| cut -b 1-10)
	75
	76 # if ${id} is empty and title is set: create id based on title.
	77 if test -z "${id}" && test -n "${title}"; then
	78 id=$(makeid "${title}")
	79 fi
	80 if test -z "${id}"; then
	81 printf 'Warning: $id or $title not set in "%s", skipping…
	82 return 1
	83 fi
	84 if test -z "${url}"; then
	85 url="${id}.html"
	86 fi
	87 outfile="${id}.html"
	88 urlfull="${siteurlfull}/${outfile}"
	89 filename=""
	90 # ${content} not set; try data from filetypes.
	91 if test -z "${content}"; then
	92 if test -f "${pagesdir}/${basename}.html"; then
	93 filename="${pagesdir}/${basename}.html"
	94 content=$(cat "${filename}")
	95 elif test -f "${pagesdir}/${basename}.md"; then
	96 filename="${pagesdir}/${basename}.md"
	97 content=$("${markdown}" "${filename}")
	98 fi
	99 fi
	100 created="<strong>Created on:</strong> ${datecreated}<br/>"
	101 if test "${datecreated}" != "${dateupdated}"; then
	102 created="${created}<strong>Last update on:</strong> ${da…
	103 fi
	104 }
	105
	106 pageheader() {
	107 # prefix page title with site title, make sure its neatly format…
	108 if test -z "${title}"; then
	109 pagetitle="${sitetitle}"
	110 else
	111 pagetitle="${title} - ${sitetitle}"
	112 fi
	113 cat <<!__EOF__
	114 <!DOCTYPE html>
	115 <html dir="ltr" lang="${sitelang}">
	116 <head>
	117 <title>${pagetitle}</title>
	118 <link rel="stylesheet" href="style.css" type="text/css" …
	119 <link rel="stylesheet" href="print.css" type="text/css" …
	120 <link rel="alternate" type="application/rss+xml" title="…
	121 <link rel="alternate" type="application/atom+xml" title=…
	122 <link rel="icon" type="image/png" href="/favicon.png" />
	123 <meta http-equiv="Content-Type" content="text/html; char…
	124 <meta http-equiv="Content-Language" content="${sitelang}…
	125 <meta content="width=device-width" name="viewport" />
	126 <meta content="${keywords}" name="keywords" />
	127 <meta content="${description}" name="description" />
	128 <meta content="${author}" name="author" />
	129 </head>
	130 <body>
	131 <div id="menuwrap">
	132 <div id="menu">
	133 <span id="links">
	134 <a href="index.html" title="Blog…
	135 <a href="http://git.codemadness.…
	136 <a href="https://github.com/hilt…
	137 </span>
	138 <span id="links-contact">
	139 <span class="hidden"> \| </span>
	140 <a href="rss.xml" title="RSS fee…
	141 <a href="atom.xml" title="Atom f…
	142 <a href="mailto:${sitemail}" tit…
	143 </span>
	144 </div>
	145 </div>
	146 <hr class="hidden" />
	147 <div id="mainwrap">
	148 <div id="main">
	149 !__EOF__
	150 }
	151
	152 pagecontent() {
	153 pageheader
	154 cat <<!__EOF__
	155 <h1><a href="">${title}</a></h1>
	156 <em>${created}</em>
	157 ${content}
	158 !__EOF__
	159 pagefooter
	160 }
	161
	162 pagefooter() {
	163 cat <<!__EOF__
	164 </div>
	165 </div>
	166 </body>
	167 </html>
	168 !__EOF__
	169 }
	170
	171 if ! test -d "${pagesdir}"; then
	172 printf 'Error: pages directory "%s" not found.\n' "${pagesdir}" …
	173 exit 1
	174 fi
	175
	176 # process single page as argument (handy for testing a single page).
	177 if test -n "$1"; then
	178 pagereset
	179 pageread "$1" \|\| exit 1
	180 pagecontent
	181 exit 0
	182 fi
	183
	184 # try to make output dir.
	185 mkdir -p "${outputdir}"
	186
	187 # truncate urllist.txt (sitemap).
	188 > "${outputdir}/urllist.txt"
	189 # content for RSS, Atom sitemap and index, this is appended as a string.
	190 contentindex=""
	191 contentrss=""
	192 contentatom=""
	193 contentsitemap=""
	194 while read -r meta; do
	195 pagereset
	196 pageread "${meta}" \|\| continue
	197 pagecontent > "${outputdir}/${outfile}"
	198
	199 # index / posts item: append.
	200 contentindex="${contentindex}$(cat <<!__EOF__
	201 <tr><td>${dateupdated}</td>
	202 <td><a href="${url}" title="${description}">${title}</a>…
	203 !__EOF__
	204 )"
	205
	206 # RSS item: append.
	207 # NOTE: GMT timezone is hard-coded because %z is not consistent,
	208 # change accordingly.
	209 contentrsspubdate=$(formatdate "%a, %d %b %Y %H:%M:%S GMT" "${ti…
	210 contentrss="${contentrss}$(
	211 cat <<!__EOF__
	212 <item>
	213 <title>${title}</title>
	214 <link>${urlfull}</link>
	215 <pubDate>${contentrsspubdate}</pubDate>
	216 <author>${author}</author>
	217 <guid isPermaLink="false">${urlfull}</guid>
	218 <description><![CDATA[${description}]]></description>
	219 </item>
	220 !__EOF__
	221 )"
	222
	223 # Atom item: append.
	224 contentatomupdated=$(formatdate "%Y-%m-%dT%H:%M:%SZ" "${timeupda…
	225 contentatompublished=$(formatdate "%Y-%m-%dT%H:%M:%SZ" "${timecr…
	226 contentatom="${contentatom}$(
	227 cat <<!__EOF__
	228 <entry>
	229 <title type="html"><![CDATA[${title}]]></title>
	230 <link rel="alternate" type="text/html" href="${urlfull}"…
	231 <id>${urlfull}</id>
	232 <updated>${contentatomupdated}</updated>
	233 <published>${contentatompublished}</published>
	234 <author>
	235 <name>${author}</name>
	236 <uri>${siteurlfull}</uri>
	237 </author>
	238 <summary type="html"><![CDATA[${description}]]></summary>
	239 </entry>
	240 !__EOF__
	241 )"
	242
	243 # sitemap: sitemap.xml, append item.
	244 contentsitemap="${contentsitemap}<url><loc>${urlfull}</loc></url…
	245
	246 # sitemap: urllist.txt, append item, write directly to file, bec…
	247 # this is just a plain-text list.
	248 printf '%s\n' "${urlfull}" >> "${outputdir}/urllist.txt"
	249 done <<!FILELIST
	250 $(find "${pagesdir}" -type f -name "*.sh" \| sort -rn)
	251 !FILELIST
	252 # process pages (reverse numeric order).
	253 # NOTE: above heredoc is used to make sure content* variables are known
	254 # in the scope after the while loop (subshell / pipes prevents this in a
	255 # standard manner).
	256
	257 # index HTML page (index.html).
	258 pagereset
	259 title="Posts"
	260 (pageheader
	261 cat <<!__EOF__
	262 <h1>${title}</h1>
	263 <table>
	264 ${contentindex}
	265 </table>
	266 !__EOF__
	267 pagefooter) > "${outputdir}/index.html"
	268
	269 # RSS feed (rss.xml).
	270 cat <<!__EOF__ > "${outputdir}/rss.xml"
	271 <?xml version="1.0" encoding="UTF-8"?>
	272 <rss version="2.0">
	273 <channel>
	274 <title>${sitetitle}</title>
	275 <link>${siteurlfull}</link>
	276 <description>${sitedescription}</description>
	277 <language>${sitelang}</language>
	278 ${contentrss}
	279 </channel>
	280 </rss>
	281 !__EOF__
	282
	283 # Atom feed (atom.xml).
	284 cat <<!__EOF__ > "${outputdir}/atom.xml"
	285 <?xml version="1.0" encoding="UTF-8"?>
	286 <feed xmlns="http://www.w3.org/2005/Atom" xml:lang="${sitelang}">
	287 <title type="text">${sitetitle}</title>
	288 <subtitle type="text">${sitedescription}</subtitle>
	289 <updated>${siteupdated}</updated>
	290 <link rel="alternate" type="text/html" href="${siteurlfull}" />
	291 <id>${siteurlfull}/atom.xml</id>
	292 <link rel="self" type="application/atom+xml" href="${siteurlfull…
	293 ${contentatom}
	294 </feed>
	295 !__EOF__
	296
	297 # sitemap (sitemap.xml).
	298 cat <<!__EOF__ > "${outputdir}/sitemap.xml"
	299 <?xml version="1.0" encoding="UTF-8"?><urlset>${contentsitemap}</urlset>
	300 !__EOF__