#!/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 ?= %x
BLOG_DATE_FORMAT ?= %x %X
BLOG_TITLE ?= blog
BLOG_DESCRIPTION ?= blog
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 '$$TITLE' > templates/header.html
printf '' > templates/footer.html
printf '' > templates/index_header.html
printf 'Tags:' > templates/tag_list_header.html
printf '$$NAME' > templates/tag_entry.html
printf ', ' > templates/tag_separator.html
printf '
' > templates/tag_list_footer.html
printf 'Articles
' > templates/article_list_header.html
printf '- $$DATE $$TITLE
' > templates/article_entry.html
printf '' > templates/article_separator.html
printf '
' > templates/article_list_footer.html
printf '' > templates/index_footer.html
printf '' > templates/tag_index_header.html
printf '' > templates/tag_index_footer.html
printf '$$TITLE
' > templates/article_header.html
printf '' > templates/article_footer.html
printf 'blog\n' > .git/info/exclude
build: blog/index.html tagpages $(patsubst $(BLOG_SRC)/%.md,blog/%.html,$(ARTICLES)) $(patsubst %,blog/%.xml,$(BLOG_FEEDS))
deploy: build
rsync -rLtvz $(BLOG_RSYNC_OPTS) blog/ data/ $(BLOG_REMOTE)
clean:
rm -rf blog tags
config:
printf 'BLOG_REMOTE:=%s\n' \
'$(shell printf "Blog remote (eg: host:/var/www/html): ">/dev/tty; head -n1)' \
> $@
tags/%: $(BLOG_SRC)/%.md
mkdir -p tags
grep -i '^; *tags:' "$<" | cut -d: -f2- | sed 's/ */\n/g' | sed '/^$$/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; \
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="Articles tagged $*"; \
TAGS="$*"; \
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="$$DATE" \
TITLE="`head -n1 "\$$FILE" | sed -e 's/^# //g'`" \
envsubst < templates/article_entry.html; \
first=false; \
done >> $@; \
envsubst < templates/article_list_footer.html >> $@; \
envsubst < templates/tag_index_footer.html >> $@; \
envsubst < templates/footer.html >> $@; \
blog/%.html: $(BLOG_SRC)/%.md $(addprefix templates/,$(addsuffix .html,header article_header article_footer footer))
mkdir -p blog
TITLE="$(shell head -n1 $<)"; \
export TITLE; \
AUTHOR="$(shell git log -n 1 --reverse --format="%cn" -- "$<")"; \
export AUTHOR; \
DATE_POSTED="$(shell git log --diff-filter=A --date="format:$(BLOG_DATE_FORMAT)" --pretty=format:'%ad' -- "$<")"; \
export DATE_POSTED; \
DATE_EDITED="$(shell git log -n 1 --date="format:$(BLOG_DATE_FORMAT)" --pretty=format:'%ad' -- "$<")"; \
export DATE_EDITED; \
TAGS="$(shell grep -i '^; *tags:' "$<" | cut -d: -f2- | paste -sd ',')"; \
export TAGS; \
DESCRIPTION="$(shell grep -i '^; *description:' "$<" | cut -d: -f2-)"; \
export DESCRIPTION; \
OG_IMAGE="$(shell grep -i '^; *og_image:' "$<" | cut -d: -f2-)"; \
export OG_IMAGE; \
envsubst < templates/header.html > $@; \
envsubst < templates/article_header.html >> $@; \
sed -e 1d \
-e '/^;/d' \
-e 's/&/\&/g' \
-e 's//\>/g' \
-e '/^```$$/{s,.*,,;x;p;/^<\/code>/d;s,.*,,;bT}' \
-e 'x;/<\/code>/{x;s,\$$,\$,g;$$G;p;d};x' \
-e 's,\\\$$,\$,g' \
-e '/^####/{s,^####,,;s,$$,
,;H;s,.*,,;x;p;d}' \
-e '/^###/{s,^###,,;s,$$,
,;H;s,.*,,;x;p;d}' \
-e '/^##/{s,^##,,;s,$$,
,;H;s,.*,,;x;p;d}' \
-e '/^#/{s,^#,,;s,$$,
,;H;s,.*,,;x;p;d}' \
-e 's,`\([^`]*\)`,\1,g' \
-e 's,\*\*\(\([^*<>][^*<>]*\*\?\)*\)\*\*,\1,g' \
-e 's,\*\([^*<>][^*<>]*\)\*,\1,g' \
-e 's,!\[\([^]]*\)\](\([^)]*\)),
,g' \
-e 's,\[\([^]]*\)\](\([^)]*\)),\1,g' \
-e '/^- /{s,^- ,,;s,$$,,;x;/^<\/ul>/{x;bL};p;s,.*,,;bT}' \
-e '/^[1-9][0-9]*\. /{s,^[0-9]*\. ,- ,;s,$$,
,;x;/^<\/ol>/{x;bL};p;s,.*,,;bT}' \
-e '/^$$/{x;/^$$/d;p;d}' \
-e 'x;/^$$/{s,.*,,;bT};x' \
-e ':L;$$G;p;d' \
-e ':T;p;:t;s,<\([^/>][^>]*\)>\(\(<[^/>][^>]*>\)*\),\2,;/<[^\/>]/bt;x;/^$$/{$${x;p};d};bL' \
"$<" | envsubst >> $@; \
envsubst < templates/article_footer.html >> $@; \
envsubst < templates/footer.html >> $@; \
blog/rss.xml: $(ARTICLES)
printf '\n\n\n%s\n%s\n%s\n' \
"$(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 '- \n%s\n%s\n%s\n%s\n%s\n
\n' \
"`head -n 1 $$FILE | sed 's/&/&/'`" \
"$(BLOG_URL_ROOT)/`basename $$FILE .md`.html" \
"$(BLOG_URL_ROOT)/`basename $$FILE .md`.html" \
"$$DATE" \
"`cat "$$FILE" | grep ";description:" | cut -d: -f2-`"; \
done >> $@
printf '\n\n' >> $@
blog/atom.xml: $(ARTICLES)
printf '\n\n%s\n%s\n%s\n\n%s\n\n' \
"$(BLOG_TITLE)" "$(BLOG_DESCRIPTION)" "$(shell date +%Y-%m-%dT%H:%M:%SZ)" "$(BLOG_URL_ROOT)" "$(BLOG_URL_ROOT)/atom.xml" "$(BLOG_URL_ROOT)/atom.xml" > $@
for f in $(ARTICLES); do \
printf '%s ' "$$f"; \
git log --diff-filter=A --date="format:%s %Y-%m-%dT%H:%M:%SZ" --pretty=format:'%ad %aN%n' -- "$$f"; \
done | sort -k2nr | head -n $(BLOG_FEED_MAX) | cut -d" " -f1,3- | while IFS=" " read -r FILE DATE AUTHOR; do \
printf '\n%s\n\n%s\n%s\n%s\n%s\n%s\n\n' \
"`head -n 1 $$FILE | sed 's/&/&/'`" \
"$(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 '\n' >> $@