[web-old.git] / blogit

#!/usr/bin/make -f
# Source: https://pedantic.software/git/blogit/
BLOG := $(MAKE) -f $(lastword $(MAKEFILE_LIST)) --no-print-directory
ifneq ($(filter-out help,$(MAKECMDGOALS)),)
include config
endif

# The following can be configured in config
BLOG_DATE_FORMAT_INDEX ?= %d/%m/%Y
BLOG_DATE_FORMAT ?= %d/%m/%Y %X
BLOG_TITLE ?= blog
BLOG_DESCRIPTION ?= blog
BLOG_AUTHOR ?= John Doe
BLOG_URL_ROOT ?= http://localhost/blog
BLOG_FEED_MAX ?= 20
BLOG_FEEDS ?= rss atom
BLOG_SRC ?= articles


.PHONY: help init build deploy clean

ARTICLES = $(shell git ls-tree HEAD --name-only -- $(BLOG_SRC)/ 2>/dev/null)
TAGFILES = $(patsubst $(BLOG_SRC)/%.md,tags/%,$(ARTICLES))

help:
	$(info blogit init|build|deploy|clean)

init:
	mkdir -p $(BLOG_SRC) data templates
	printf '<!DOCTYPE html><html><head><title>$$TITLE</title></head><body>' > templates/header.html
	printf '</body></html>' > templates/footer.html
	printf '' > templates/index_header.html
	printf '<p>Tags:' > templates/tag_list_header.html
	printf '<a href="$$URL">$$NAME</a>' > templates/tag_entry.html
	printf ', ' > templates/tag_separator.html
	printf '</p>' > templates/tag_list_footer.html
	printf '<h2>Articles</h2><ul>' > templates/article_list_header.html
	printf '<li><a href="$$URL">$$DATE $$TITLE</a></li>' > templates/article_entry.html
	printf '' > templates/article_separator.html
	printf '</ul>' > templates/article_list_footer.html
	printf '' > templates/index_footer.html
	printf '' > templates/tag_index_header.html
	printf '' > templates/tag_index_footer.html
	printf '<h1>$$TITLE</h1>' > templates/article_header.html
	printf '' > templates/article_footer.html
	printf 'blog\n' > .git/info/exclude

build: blog/index.html tagpages $(patsubst $(BLOG_SRC)/%.md,blog/%.html,$(ARTICLES)) $(patsubst %,blog/%.xml,$(BLOG_FEEDS))

deploy: build
	rsync -rLtvz $(BLOG_RSYNC_OPTS) blog/ data/ $(BLOG_REMOTE)

clean:
	rm -rf blog tags

config:
	printf 'BLOG_REMOTE:=%s\n' \
		'$(shell printf "Blog remote (eg: host:/var/www/html): ">/dev/tty; head -n1)' \
		> $@

tags/%: $(BLOG_SRC)/%.md
	mkdir -p tags
	grep -i '^; *tags:' "$<" | cut -d: -f2- | sed 's/  */\n/g' | sed '/^$$/d' | sort -u > $@

blog/index.html: $(ARTICLES) $(TAGFILES) $(addprefix templates/,$(addsuffix .html,header index_header tag_list_header tag_entry tag_separator tag_list_footer article_list_header article_entry article_separator article_list_footer index_footer footer))
	mkdir -p blog
	TITLE="$(BLOG_TITLE)"; \
	export TITLE; \
	DESCRIPTION="$(BLOG_DESCRIPTION)"; \
	export DESCRIPTION; \
	AUTHOR="$(BLOG_AUTHOR)"; \
	export AUTHOR; \
	envsubst < templates/header.html > $@; \
	envsubst < templates/index_header.html >> $@; \
	envsubst < templates/tag_list_header.html >> $@; \
	first=true; \
	for t in $(shell cat $(TAGFILES) | sort -u); do \
		"$$first" || envsubst < templates/tag_separator.html; \
		NAME="$$t" \
		URL="@$$t.html" \
		envsubst < templates/tag_entry.html; \
		first=false; \
	done >> $@; \
	envsubst < templates/tag_list_footer.html >> $@; \
	envsubst < templates/article_list_header.html >> $@; \
	first=true; \
	for f in $(ARTICLES); do \
		printf '%s ' "$$f"; \
		git log --diff-filter=A --date="format:%s $(BLOG_DATE_FORMAT_INDEX)" --pretty=format:'%ad%n' -- "$$f"; \
	done | sort -k2nr | cut -d" " -f1,3- | while IFS=" " read -r FILE DATE; do \
		"$$first" || envsubst < templates/article_separator.html; \
		URL="`printf '%s' "\$$FILE" | sed 's,^$(BLOG_SRC)/\(.*\).md,\1,'`.html" \
		DATE="$$DATE" \
		TITLE="`head -n1 "\$$FILE" | sed -e 's/^# //g'`" \
		envsubst < templates/article_entry.html; \
		first=false; \
	done >> $@; \
	envsubst < templates/article_list_footer.html >> $@; \
	envsubst < templates/index_footer.html >> $@; \
	envsubst < templates/footer.html >> $@; \


blog/tag/%.html: $(ARTICLES) $(addprefix templates/,$(addsuffix .html,header tag_header index_entry tag_footer footer))

.PHONY: tagpages
tagpages: $(TAGFILES)
	+$(BLOG) $(patsubst %,blog/@%.html,$(shell cat $(TAGFILES) | sort -u))

blog/@%.html: $(TAGFILES) $(addprefix templates/,$(addsuffix .html,header tag_index_header tag_list_header tag_entry tag_separator tag_list_footer article_list_header article_entry article_separator article_list_footer tag_index_footer footer))
	mkdir -p blog
	TITLE="$(BLOG_TITLE) - Articles tagged $*"; \
	TAGS="$*"; \
	AUTHOR=""; \
	export AUTHOR; \
	export TITLE; \
	export TAGS; \
	envsubst < templates/header.html > $@; \
	envsubst < templates/tag_index_header.html >> $@; \
	envsubst < templates/article_list_header.html >> $@; \
	first=true; \
	for f in $(shell grep -FH '$*' $(TAGFILES) | sed 's,^tags/\([^:]*\):.*,$(BLOG_SRC)/\1.md,'); do \
		printf '%s ' "$$f"; \
		git log --diff-filter=A --date="format:%s $(BLOG_DATE_FORMAT_INDEX)" --pretty=format:'%ad%n' -- "$$f"; \
	done | sort -k2nr | cut -d" " -f1,3- | while IFS=" " read -r FILE DATE; do \
		"$$first" || envsubst < templates/article_separator.html; \
		URL="`printf '%s' "\$$FILE" | sed 's,^$(BLOG_SRC)/\(.*\).md,\1,'`.html" \
		DATE="$$DATE" \
		TITLE="`head -n1 "\$$FILE" | sed -e 's/^# //g'`" \
		envsubst < templates/article_entry.html; \
		first=false; \
	done >> $@; \
	envsubst < templates/article_list_footer.html >> $@; \
	envsubst < templates/tag_index_footer.html >> $@; \
	envsubst < templates/footer.html >> $@; \


blog/%.html: $(BLOG_SRC)/%.md $(addprefix templates/,$(addsuffix .html,header article_header article_footer footer))
	mkdir -p blog
	TITLE=" $(BLOG_TITLE) - $(shell head -n1 $<)"; \
	export TITLE; \
	AUTHOR="$(shell git log -n 1 --reverse --format="%an" -- "$<")"; \
	export AUTHOR; \
	DATE_POSTED="$(shell git log --diff-filter=A --date="format:$(BLOG_DATE_FORMAT)" --pretty=format:'%ad' -- "$<")"; \
	export DATE_POSTED; \
	DATE_EDITED="$(shell git log -n 1 --date="format:$(BLOG_DATE_FORMAT)" --pretty=format:'%ad' -- "$<")"; \
	export DATE_EDITED; \
	TAGS="$(shell grep -i '^; *tags:' "$<" | cut -d: -f2- | paste -sd ',')"; \
	export TAGS; \
	DESCRIPTION="$(shell grep -i '^; *description:' "$<" | cut -d: -f2-)"; \
	export DESCRIPTION; \
	OG_IMAGE="$(shell grep -i '^; *og_image:' "$<" | cut -d: -f2-)"; \
	export OG_IMAGE; \
	envsubst < templates/header.html > $@; \
	envsubst < templates/article_header.html >> $@; \
	sed -e 1d \
		-e '/^;/d' \
		-e 's/&/\&amp;/g' \
		-e 's/</\&lt;/g' \
		-e 's/>/\&gt;/g' \
		-e '/^```$$/{s,.*,,;x;p;/^<\/code>/d;s,.*,<pre><code>,;bT}' \
		-e 'x;/<\/code>/{x;s,\$$,\&#36;,g;$$G;p;d};x' \
		-e 's,\\\$$,\&#36;,g' \
		-e '/^####/{s,^####,<h4>,;s,$$,</h4>,;H;s,.*,,;x;p;d}' \
		-e '/^###/{s,^###,<h3>,;s,$$,</h3>,;H;s,.*,,;x;p;d}' \
		-e '/^##/{s,^##,<h2>,;s,$$,</h2>,;H;s,.*,,;x;p;d}' \
		-e '/^#/{s,^#,<h1>,;s,$$,</h1>,;H;s,.*,,;x;p;d}' \
		-e 's,`\([^`]*\)`,<code>\1</code>,g' \
		-e 's,\*\*\(\([^*<>][^*<>]*\*\?\)*\)\*\*,<b>\1</b>,g' \
		-e 's,\*\([^*<>][^*<>]*\)\*,<i>\1</i>,g' \
		-e 's,!\[\([^]]*\)\](\([^)]*\)),<img src="\2" alt="\1"/>,g' \
		-e 's,\[\([^]]*\)\](\([^)]*\)),<a href="\2">\1</a>,g' \
		-e '/^- /{s,^- ,<li>,;s,$$,</li>,;x;/^<\/ul>/{x;bL};p;s,.*,<ul>,;bT}' \
		-e '/^[1-9][0-9]*\. /{s,^[0-9]*\. ,<li>,;s,$$,</li>,;x;/^<\/ol>/{x;bL};p;s,.*,<ol>,;bT}' \
		-e '/^$$/{x;/^$$/d;p;d}' \
		-e 'x;/^$$/{s,.*,<p>,;bT};x' \
		-e ':L;$$G;p;d' \
		-e ':T;p;:t;s,<\([^/>][^>]*\)>\(\(<[^/>][^>]*>\)*\),\2</\1>,;/<[^\/>]/bt;x;/^$$/{$${x;p};d};bL' \
		"$<" | envsubst >> $@; \
	envsubst < templates/article_footer.html >> $@; \
	envsubst < templates/footer.html >> $@; \

blog/rss.xml: $(ARTICLES)
	printf '<?xml version="1.0" encoding="UTF-8"?>\n<rss version="2.0">\n<channel>\n<title>%s</title>\n<link>%s</link>\n<description>%s</description>\n' \
		"$(BLOG_TITLE)" "$(BLOG_URL_ROOT)" "$(BLOG_DESCRIPTION)" > $@
	for f in $(ARTICLES); do \
		printf '%s ' "$$f"; \
		git log --diff-filter=A --date="format:%s %a, %d %b %Y %H:%M:%S %z" --pretty=format:'%ad%n' -- "$$f"; \
	done | sort -k2nr | head -n $(BLOG_FEED_MAX) | cut -d" " -f1,3- | while IFS=" " read -r FILE DATE; do \
		printf '<item>\n<title>%s</title>\n<link>%s</link>\n<guid>%s</guid>\n<pubDate>%s</pubDate>\n<description>%s</description>\n</item>\n' \
			"`head -n 1 $$FILE | sed 's/&/&amp;/'`" \
			"$(BLOG_URL_ROOT)/`basename $$FILE .md`.html" \
			"$(BLOG_URL_ROOT)/`basename $$FILE .md`.html" \
			"$$DATE" \
			"`cat "$$FILE" | grep ";description:" | cut -d: -f2-`"; \
	done >> $@
	printf '</channel>\n</rss>\n' >> $@

blog/atom.xml: $(ARTICLES)
	printf '<?xml version="1.0" encoding="UTF-8"?>\n<feed xmlns="http://www.w3.org/2005/Atom" xml:lang="en">\n<title type="text">%s</title>\n<subtitle type="text">%s</subtitle>\n<updated>%s</updated>\n<link rel="alternate" type="text/html" href="%s"/>\n<id>%s</id>\n<link rel="self" type="application/atom+xml" href="%s"/>\n' \
		"$(BLOG_TITLE)" "$(BLOG_DESCRIPTION)" "$(shell date +%Y-%m-%dT%H:%M:%SZ)" "$(BLOG_URL_ROOT)" "$(BLOG_URL_ROOT)/atom.xml" "$(BLOG_URL_ROOT)/atom.xml" > $@
	for f in $(ARTICLES); do \
		printf '%s ' "$$f"; \
		git log --diff-filter=A --date="format:%s %Y-%m-%dT%H:%M:%SZ" --pretty=format:'%ad %aN%n' -- "$$f"; \
	done | sort -k2nr | head -n $(BLOG_FEED_MAX) | cut -d" " -f1,3- | while IFS=" " read -r FILE DATE AUTHOR; do \
		printf '<entry>\n<title type="text">%s</title>\n<link rel="alternate" type="text/html" href="%s"/>\n<id>%s</id>\n<published>%s</published>\n<updated>%s</updated>\n<author><name>%s</name></author>\n<summary type="text">%s</summary>\n</entry>\n' \
			"`head -n 1 $$FILE | sed 's/&/&amp;/'`" \
			"$(BLOG_URL_ROOT)/`basename $$FILE .md`.html" \
			"$(BLOG_URL_ROOT)/`basename $$FILE .md`.html" \
			"$$DATE" \
			"`git log -n 1 --date="format:%Y-%m-%dT%H:%M:%SZ" --pretty=format:'%ad' -- "$$FILE"`" \
			"$$AUTHOR" \
			"`cat "$$FILE" | grep ";description:" | cut -d: -f2-`"; \
	done >> $@
	printf '</feed>\n' >> $@
Commit	Line	Data
0324a0cf JM	1	#!/usr/bin/make -f
	2	# Source: https://pedantic.software/git/blogit/
	3	BLOG := $(MAKE) -f $(lastword $(MAKEFILE_LIST)) --no-print-directory
	4	ifneq ($(filter-out help,$(MAKECMDGOALS)),)
	5	include config
	6	endif
	7
	8	# The following can be configured in config
f4fc716c JM	9	BLOG_DATE_FORMAT_INDEX ?= %d/%m/%Y
f4fc716c JM	10	BLOG_DATE_FORMAT ?= %d/%m/%Y %X
0324a0cf JM	11	BLOG_TITLE ?= blog
0324a0cf JM	12	BLOG_DESCRIPTION ?= blog
8dd9db16	13	BLOG_AUTHOR ?= John Doe
0324a0cf JM	14	BLOG_URL_ROOT ?= http://localhost/blog
	15	BLOG_FEED_MAX ?= 20
	16	BLOG_FEEDS ?= rss atom
	17	BLOG_SRC ?= articles
	18
	19
	20	.PHONY: help init build deploy clean
	21
	22	ARTICLES = $(shell git ls-tree HEAD --name-only -- $(BLOG_SRC)/ 2>/dev/null)
	23	TAGFILES = $(patsubst $(BLOG_SRC)/%.md,tags/%,$(ARTICLES))
	24
	25	help:
	26	$(info blogit init\|build\|deploy\|clean)
	27
	28	init:
	29	mkdir -p $(BLOG_SRC) data templates
	30	printf '<!DOCTYPE html><html><head><title>$$TITLE</title></head><body>' > templates/header.html
	31	printf '</body></html>' > templates/footer.html
	32	printf '' > templates/index_header.html
	33	printf '<p>Tags:' > templates/tag_list_header.html
	34	printf '<a href="$$URL">$$NAME</a>' > templates/tag_entry.html
	35	printf ', ' > templates/tag_separator.html
	36	printf '</p>' > templates/tag_list_footer.html
	37	printf '<h2>Articles</h2><ul>' > templates/article_list_header.html
	38	printf '<li><a href="$$URL">$$DATE $$TITLE</a></li>' > templates/article_entry.html
	39	printf '' > templates/article_separator.html
	40	printf '</ul>' > templates/article_list_footer.html
	41	printf '' > templates/index_footer.html
	42	printf '' > templates/tag_index_header.html
	43	printf '' > templates/tag_index_footer.html
	44	printf '<h1>$$TITLE</h1>' > templates/article_header.html
	45	printf '' > templates/article_footer.html
	46	printf 'blog\n' > .git/info/exclude
	47
	48	build: blog/index.html tagpages $(patsubst $(BLOG_SRC)/%.md,blog/%.html,$(ARTICLES)) $(patsubst %,blog/%.xml,$(BLOG_FEEDS))
	49
	50	deploy: build
	51	rsync -rLtvz $(BLOG_RSYNC_OPTS) blog/ data/ $(BLOG_REMOTE)
	52
	53	clean:
	54	rm -rf blog tags
	55
	56	config:
	57	printf 'BLOG_REMOTE:=%s\n' \
	58	'$(shell printf "Blog remote (eg: host:/var/www/html): ">/dev/tty; head -n1)' \
	59	> $@
	60
	61	tags/%: $(BLOG_SRC)/%.md
	62	mkdir -p tags
	63	grep -i '^; tags:' "$<" \| cut -d: -f2- \| sed 's/ /\n/g' \| sed '/^$$/d' \| sort -u > $@
	64
	65	blog/index.html: $(ARTICLES) $(TAGFILES) $(addprefix templates/,$(addsuffix .html,header index_header tag_list_header tag_entry tag_separator tag_list_footer article_list_header article_entry article_separator article_list_footer index_footer footer))
	66	mkdir -p blog
	67	TITLE="$(BLOG_TITLE)"; \
	68	export TITLE; \
adfee06d JM	69	DESCRIPTION="$(BLOG_DESCRIPTION)"; \
adfee06d JM	70	export DESCRIPTION; \
8dd9db16 JM	71	AUTHOR="$(BLOG_AUTHOR)"; \
8dd9db16 JM	72	export AUTHOR; \
0324a0cf JM	73	envsubst < templates/header.html > $@; \
	74	envsubst < templates/index_header.html >> $@; \
	75	envsubst < templates/tag_list_header.html >> $@; \
	76	first=true; \
	77	for t in $(shell cat $(TAGFILES) \| sort -u); do \
	78	"$$first" \|\| envsubst < templates/tag_separator.html; \
	79	NAME="$$t" \
	80	URL="@$$t.html" \
	81	envsubst < templates/tag_entry.html; \
	82	first=false; \
	83	done >> $@; \
	84	envsubst < templates/tag_list_footer.html >> $@; \
	85	envsubst < templates/article_list_header.html >> $@; \
	86	first=true; \
	87	for f in $(ARTICLES); do \
	88	printf '%s ' "$$f"; \
	89	git log --diff-filter=A --date="format:%s $(BLOG_DATE_FORMAT_INDEX)" --pretty=format:'%ad%n' -- "$$f"; \
	90	done \| sort -k2nr \| cut -d" " -f1,3- \| while IFS=" " read -r FILE DATE; do \
	91	"$$first" \|\| envsubst < templates/article_separator.html; \
	92	URL="`printf '%s' "\$$FILE" \| sed 's,^$(BLOG_SRC)/\(.*\).md,\1,'`.html" \
	93	DATE="$$DATE" \
	94	TITLE="`head -n1 "\$$FILE" \| sed -e 's/^# //g'`" \
	95	envsubst < templates/article_entry.html; \
	96	first=false; \
	97	done >> $@; \
	98	envsubst < templates/article_list_footer.html >> $@; \
	99	envsubst < templates/index_footer.html >> $@; \
	100	envsubst < templates/footer.html >> $@; \
	101
	102
	103	blog/tag/%.html: $(ARTICLES) $(addprefix templates/,$(addsuffix .html,header tag_header index_entry tag_footer footer))
	104
	105	.PHONY: tagpages
	106	tagpages: $(TAGFILES)
	107	+$(BLOG) $(patsubst %,blog/@%.html,$(shell cat $(TAGFILES) \| sort -u))
	108
	109	blog/@%.html: $(TAGFILES) $(addprefix templates/,$(addsuffix .html,header tag_index_header tag_list_header tag_entry tag_separator tag_list_footer article_list_header article_entry article_separator article_list_footer tag_index_footer footer))
	110	mkdir -p blog
adfee06d	111	TITLE="$(BLOG_TITLE) - Articles tagged $*"; \
0324a0cf	112	TAGS="$*"; \
8dd9db16 JM	113	AUTHOR=""; \
8dd9db16 JM	114	export AUTHOR; \
0324a0cf JM	115	export TITLE; \
	116	export TAGS; \
	117	envsubst < templates/header.html > $@; \
	118	envsubst < templates/tag_index_header.html >> $@; \
	119	envsubst < templates/article_list_header.html >> $@; \
	120	first=true; \
	121	for f in $(shell grep -FH '$' $(TAGFILES) \| sed 's,^tags/\([^:]\):.*,$(BLOG_SRC)/\1.md,'); do \
	122	printf '%s ' "$$f"; \
	123	git log --diff-filter=A --date="format:%s $(BLOG_DATE_FORMAT_INDEX)" --pretty=format:'%ad%n' -- "$$f"; \
	124	done \| sort -k2nr \| cut -d" " -f1,3- \| while IFS=" " read -r FILE DATE; do \
	125	"$$first" \|\| envsubst < templates/article_separator.html; \
	126	URL="`printf '%s' "\$$FILE" \| sed 's,^$(BLOG_SRC)/\(.*\).md,\1,'`.html" \
	127	DATE="$$DATE" \
	128	TITLE="`head -n1 "\$$FILE" \| sed -e 's/^# //g'`" \
	129	envsubst < templates/article_entry.html; \
	130	first=false; \
	131	done >> $@; \
	132	envsubst < templates/article_list_footer.html >> $@; \
	133	envsubst < templates/tag_index_footer.html >> $@; \
	134	envsubst < templates/footer.html >> $@; \
	135
	136
	137	blog/%.html: $(BLOG_SRC)/%.md $(addprefix templates/,$(addsuffix .html,header article_header article_footer footer))
	138	mkdir -p blog
adfee06d	139	TITLE=" $(BLOG_TITLE) - $(shell head -n1 $<)"; \
0324a0cf	140	export TITLE; \
8dd9db16	141	AUTHOR="$(shell git log -n 1 --reverse --format="%an" -- "$<")"; \
0324a0cf JM	142	export AUTHOR; \
	143	DATE_POSTED="$(shell git log --diff-filter=A --date="format:$(BLOG_DATE_FORMAT)" --pretty=format:'%ad' -- "$<")"; \
	144	export DATE_POSTED; \
	145	DATE_EDITED="$(shell git log -n 1 --date="format:$(BLOG_DATE_FORMAT)" --pretty=format:'%ad' -- "$<")"; \
	146	export DATE_EDITED; \
	147	TAGS="$(shell grep -i '^; *tags:' "$<" \| cut -d: -f2- \| paste -sd ',')"; \
	148	export TAGS; \
8c9e33cd JM	149	DESCRIPTION="$(shell grep -i '^; *description:' "$<" \| cut -d: -f2-)"; \
8c9e33cd JM	150	export DESCRIPTION; \
78738995 JM	151	OG_IMAGE="$(shell grep -i '^; *og_image:' "$<" \| cut -d: -f2-)"; \
78738995 JM	152	export OG_IMAGE; \
0324a0cf JM	153	envsubst < templates/header.html > $@; \
	154	envsubst < templates/article_header.html >> $@; \
	155	sed -e 1d \
	156	-e '/^;/d' \
	157	-e 's/&/\&/g' \
	158	-e 's/</\</g' \
	159	-e 's/>/\>/g' \
	160	-e '/^```$$/{s,.,,;x;p;/^<\/code>/d;s,.,<pre><code>,;bT}' \
	161	-e 'x;/<\/code>/{x;s,\$$,\$,g;$$G;p;d};x' \
	162	-e 's,\\\$$,\$,g' \
	163	-e '/^####/{s,^####,<h4>,;s,$$,</h4>,;H;s,.*,,;x;p;d}' \
	164	-e '/^###/{s,^###,<h3>,;s,$$,</h3>,;H;s,.*,,;x;p;d}' \
	165	-e '/^##/{s,^##,<h2>,;s,$$,</h2>,;H;s,.*,,;x;p;d}' \
	166	-e '/^#/{s,^#,<h1>,;s,$$,</h1>,;H;s,.*,,;x;p;d}' \
	167	-e 's,`\([^`]*\)`,<code>\1</code>,g' \
	168	-e 's,\\\(\([^<>][^<>]\\?\)\)\\*,<b>\1</b>,g' \
	169	-e 's,\\([^<>][^<>]\)\*,<i>\1</i>,g' \
	170	-e 's,!\[\([^]]\)\](\([^)]\)),<img src="\2" alt="\1"/>,g' \
	171	-e 's,\[\([^]]\)\](\([^)]\)),<a href="\2">\1</a>,g' \
	172	-e '/^- /{s,^- ,<li>,;s,$$,</li>,;x;/^<\/ul>/{x;bL};p;s,.*,<ul>,;bT}' \
	173	-e '/^[1-9][0-9]\. /{s,^[0-9]\. ,<li>,;s,$$,</li>,;x;/^<\/ol>/{x;bL};p;s,.*,<ol>,;bT}' \
	174	-e '/^$$/{x;/^$$/d;p;d}' \
	175	-e 'x;/^$$/{s,.*,<p>,;bT};x' \
	176	-e ':L;$$G;p;d' \
	177	-e ':T;p;:t;s,<\([^/>][^>]\)>\(\(<[^/>][^>]>\)*\),\2</\1>,;/<[^\/>]/bt;x;/^$$/{$${x;p};d};bL' \
	178	"$<" \| envsubst >> $@; \
	179	envsubst < templates/article_footer.html >> $@; \
	180	envsubst < templates/footer.html >> $@; \
	181
	182	blog/rss.xml: $(ARTICLES)
	183	printf '<?xml version="1.0" encoding="UTF-8"?>\n<rss version="2.0">\n<channel>\n<title>%s</title>\n<link>%s</link>\n<description>%s</description>\n' \
	184	"$(BLOG_TITLE)" "$(BLOG_URL_ROOT)" "$(BLOG_DESCRIPTION)" > $@
	185	for f in $(ARTICLES); do \
	186	printf '%s ' "$$f"; \
	187	git log --diff-filter=A --date="format:%s %a, %d %b %Y %H:%M:%S %z" --pretty=format:'%ad%n' -- "$$f"; \
	188	done \| sort -k2nr \| head -n $(BLOG_FEED_MAX) \| cut -d" " -f1,3- \| while IFS=" " read -r FILE DATE; do \
	189	printf '<item>\n<title>%s</title>\n<link>%s</link>\n<guid>%s</guid>\n<pubDate>%s</pubDate>\n<description>%s</description>\n</item>\n' \
a9f6852b	190	"`head -n 1 $$FILE \| sed 's/&/&/'`" \
0324a0cf JM	191	"$(BLOG_URL_ROOT)/`basename $$FILE .md`.html" \
	192	"$(BLOG_URL_ROOT)/`basename $$FILE .md`.html" \
	193	"$$DATE" \
7f10ed74	194	"`cat "$$FILE" \| grep ";description:" \| cut -d: -f2-`"; \
0324a0cf JM	195	done >> $@
	196	printf '</channel>\n</rss>\n' >> $@
	197
	198	blog/atom.xml: $(ARTICLES)
	199	printf '<?xml version="1.0" encoding="UTF-8"?>\n<feed xmlns="http://www.w3.org/2005/Atom" xml:lang="en">\n<title type="text">%s</title>\n<subtitle type="text">%s</subtitle>\n<updated>%s</updated>\n<link rel="alternate" type="text/html" href="%s"/>\n<id>%s</id>\n<link rel="self" type="application/atom+xml" href="%s"/>\n' \
	200	"$(BLOG_TITLE)" "$(BLOG_DESCRIPTION)" "$(shell date +%Y-%m-%dT%H:%M:%SZ)" "$(BLOG_URL_ROOT)" "$(BLOG_URL_ROOT)/atom.xml" "$(BLOG_URL_ROOT)/atom.xml" > $@
	201	for f in $(ARTICLES); do \
	202	printf '%s ' "$$f"; \
	203	git log --diff-filter=A --date="format:%s %Y-%m-%dT%H:%M:%SZ" --pretty=format:'%ad %aN%n' -- "$$f"; \
	204	done \| sort -k2nr \| head -n $(BLOG_FEED_MAX) \| cut -d" " -f1,3- \| while IFS=" " read -r FILE DATE AUTHOR; do \
	205	printf '<entry>\n<title type="text">%s</title>\n<link rel="alternate" type="text/html" href="%s"/>\n<id>%s</id>\n<published>%s</published>\n<updated>%s</updated>\n<author><name>%s</name></author>\n<summary type="text">%s</summary>\n</entry>\n' \
a9f6852b	206	"`head -n 1 $$FILE \| sed 's/&/&/'`" \
0324a0cf JM	207	"$(BLOG_URL_ROOT)/`basename $$FILE .md`.html" \
	208	"$(BLOG_URL_ROOT)/`basename $$FILE .md`.html" \
	209	"$$DATE" \
	210	"`git log -n 1 --date="format:%Y-%m-%dT%H:%M:%SZ" --pretty=format:'%ad' -- "$$FILE"`" \
	211	"$$AUTHOR" \
7f10ed74	212	"`cat "$$FILE" \| grep ";description:" \| cut -d: -f2-`"; \
0324a0cf JM	213	done >> $@
0324a0cf JM	214	printf '</feed>\n' >> $@