From 05903eea532bfd18cfb4a289c9d3c57f62e9d20e Mon Sep 17 00:00:00 2001
From: EuAndreh <eu@euandre.org>
Date: Sat, 31 Aug 2024 21:01:44 -0300
Subject: Import code from website repository

---
 .gitignore   |   1 +
 Makefile     | 100 ++++++++++++++++++++++++++++++++++
 deps.mk      |   8 +++
 mkdeps.sh    |   4 ++
 src/conf     |  30 +++++++++++
 src/feed     |  52 ++++++++++++++++++
 src/html     | 174 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/htmlbody |   4 ++
 src/mkwb.in  |  12 +++++
 src/sortdata |  14 +++++
 src/xmlentry |  48 +++++++++++++++++
 11 files changed, 447 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Makefile
 create mode 100644 deps.mk
 create mode 100755 mkdeps.sh
 create mode 100755 src/conf
 create mode 100755 src/feed
 create mode 100755 src/html
 create mode 100755 src/htmlbody
 create mode 100755 src/mkwb.in
 create mode 100755 src/sortdata
 create mode 100755 src/xmlentry

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..cbe1900
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/src/mkwb
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..306519f
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,100 @@
+.POSIX:
+DATE         = 1970-01-01
+VERSION      = 0.1.0
+NAME         = mkwb
+NAME_UC      = $(NAME)
+LANGUAGES    = en
+## Installation prefix.  Defaults to "/usr".
+PREFIX       = /usr
+BINDIR       = $(PREFIX)/bin
+LIBDIR       = $(PREFIX)/lib
+LIBEXECDIR   = $(PREFIX)/libexec/$(NAME)
+SYSCONFDIR   = $(PREFIX)/etc
+INCLUDEDIR   = $(PREFIX)/include
+SRCDIR       = $(PREFIX)/src/$(NAME)
+SHAREDIR     = $(PREFIX)/share
+LOCALEDIR    = $(SHAREDIR)/locale
+MANDIR       = $(SHAREDIR)/man
+EXEC         = ./
+## Where to store the installation.  Empty by default.
+DESTDIR      =
+LDLIBS       =
+
+
+
+.SUFFIXES:
+.SUFFIXES: .in
+
+.in:
+	sed \
+		's:@LIBEXECDIR@:$(LIBEXECDIR):g' \
+		< $< > $@
+	if [ -x $< ]; then chmod +x $@; fi
+
+
+
+all:
+include deps.mk
+
+sources = \
+	$(libexec.sh)                  \
+	src/$(NAME).in                 \
+
+
+derived-assets = \
+	src/$(NAME)                    \
+
+side-assets = \
+
+
+
+## Default target.  Builds all artifacts required for testing
+## and installation.
+all: $(derived-assets)
+
+
+
+check-unit:
+
+
+check-integration:
+
+
+## Run all tests.  Each test suite is isolated, so that a parallel
+## build can run tests at the same time.  The required artifacts
+## are created if missing.
+check: check-unit check-integration
+
+
+
+## Remove *all* derived artifacts produced during the build.
+## A dedicated test asserts that this is always true.
+clean:
+	rm -rf $(derived-assets) $(side-assets)
+
+
+## Installs into $(DESTDIR)$(PREFIX).  Its dependency target
+## ensures that all installable artifacts are crafted beforehand.
+install: all
+	mkdir -p \
+		'$(DESTDIR)$(BINDIR)'     \
+		'$(DESTDIR)$(LIBEXECDIR)' \
+		'$(DESTDIR)$(SRCDIR)'     \
+
+	cp src/$(NAME)       '$(DESTDIR)$(BINDIR)'
+	cp $(libexec.sh)     '$(DESTDIR)$(LIBEXECDIR)'
+	cp $(sources)        '$(DESTDIR)$(SRCDIR)'
+
+
+## Uninstalls from $(DESTDIR)$(PREFIX).  This is a perfect mirror
+## of the "install" target, and removes *all* that was installed.
+## A dedicated test asserts that this is always true.
+uninstall:
+	rm -rf \
+		'$(DESTDIR)$(BINDIR)'/$(NAME)         \
+		'$(DESTDIR)$(LIBEXECDIR)'             \
+		'$(DESTDIR)$(SRCDIR)'                 \
+
+
+
+ALWAYS:
diff --git a/deps.mk b/deps.mk
new file mode 100644
index 0000000..8913e8c
--- /dev/null
+++ b/deps.mk
@@ -0,0 +1,8 @@
+libexec.sh = \
+	src/conf \
+	src/feed \
+	src/html \
+	src/htmlbody \
+	src/sortdata \
+	src/xmlentry \
+
diff --git a/mkdeps.sh b/mkdeps.sh
new file mode 100755
index 0000000..9ae9a7f
--- /dev/null
+++ b/mkdeps.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+set -eu
+
+find src/* -not -name 'mkwb*' | varlist 'libexec.sh'
diff --git a/src/conf b/src/conf
new file mode 100755
index 0000000..6aa6761
--- /dev/null
+++ b/src/conf
@@ -0,0 +1,30 @@
+#!/bin/sh
+set -eu
+
+
+usage() {
+	echo 'Usage: conf FILENAME'
+}
+
+FILENAME="${1:-}"
+eval "$(assert-arg -- "$FILENAME" 'FILENAME')"
+
+
+date="$(dirname "${FILENAME#src/}" | tr '/' '-')"
+date_iso="$(date -ud "${date:?}" -Is)" # FIXME: non POSIX
+printf 'export date_iso="%s"\n' "$date_iso"
+
+cat <<-'EOF'
+	export domain="DOMAIN"
+	export email="EMAIL"
+	export base_url=''
+	export list_addr='~euandreh/public-inbox@lists.sr.ht'
+	export mailto_uri_prefix="mailto:$list_addr?Subject=Re%3A%20"
+	export discussions_url_prefix="https://lists.sr.ht/~euandreh/public-inbox?search="
+	export sourcecode_url_prefix="https://$domain/git/$domain/tree/"
+	export author='EuAndreh'
+	export url='url1'
+	export site_name='site_name1'
+	export feed_article_title='Articles from papo.im'
+	export lang=en
+EOF
diff --git a/src/feed b/src/feed
new file mode 100755
index 0000000..f202ba6
--- /dev/null
+++ b/src/feed
@@ -0,0 +1,52 @@
+#!/bin/sh
+set -eu
+
+usage() {
+	echo 'Usage: feed FILENAME'
+}
+
+FILENAME="${1:-}"
+eval "$(assert-arg -- "$FILENAME" 'FILENAME')"
+
+
+absolute() {
+	printf 'https://domain-here.com/%s' "$(cat -)"
+}
+
+feed_article_title=''
+site_name=' '
+lang=en
+now="$(date -uIs)"
+url_absolute="$(printf '%s' "${FILENAME#src/}" | absolute)"
+site_name_html="$(htmlesc "${site_name:?}")"
+collection=article
+collection_url_absolute="$(printf '%s' ${lang:?}/ | absolute)"
+feed_title_html="$(eval "echo \"\$feed_${collection}_title\"" | htmlesc)"
+export now url_absolute site_name_html collection_url_absolute feed_title_html
+
+DIR="$(dirname "$FILENAME")"
+
+author=
+email=
+cat <<EOF
+<feed
+    xmlns="http://www.w3.org/2005/Atom"
+    xmlns:content="http://purl.org/rss/1.0/modules/content/"
+    xml:lang="$lang">
+  <link href="$url_absolute" rel="self" type="application/atom+xml" />
+  <link href="$collection_url_absolute" rel="alternate" type="text/html" hreflang="$lang" />
+  <title>$site_name_html</title>
+  <subtitle>$feed_title_html</subtitle>
+  <id>$url_absolute</id>
+  <updated>$now</updated>
+
+  <author>
+    <name>$author</name>
+    <email>$email</email>
+  </author>
+EOF
+find "$@" |
+	xargs cat |
+	sort -nr |
+	xargs cat
+printf '</feed>\n'
diff --git a/src/html b/src/html
new file mode 100755
index 0000000..007fcc2
--- /dev/null
+++ b/src/html
@@ -0,0 +1,174 @@
+#!/bin/sh
+set -eu
+
+usage() {
+	echo 'Usage: html FILENAME'
+}
+
+FILENAME="${1:-}"
+eval "$(assert-arg -- "$FILENAME" 'FILENAME')"
+
+. "${FILENAME%.*}.conf"
+
+#
+# Utility functions
+#
+
+INDENT='        '
+markdown_to_html() {
+	md2html | awk -vINDENT="$INDENT" '
+		BEGIN {
+			in_block = 0
+		}
+
+		{
+			if (in_block == 0) {
+				printf "%s", INDENT
+			}
+			print
+		}
+
+		/^<\/code><\/pre>$/ {
+			in_block = 0
+		}
+
+		/^<pre><code/ {
+			in_block = 1
+		}
+	'
+}
+
+extract_plaintext_snippets() (
+	SNIPPETS="${FILENAME%.*}.snippets"
+	printf '' > "$SNIPPETS"
+	F="$(mkstemp)"
+	cat > "$F"
+	IFS=''
+	BLOCK_NUMBER=0
+	IN_BLOCK=
+	while read -r line; do
+		if [ "$line" = '</code></pre>' ]; then
+			IN_BLOCK=
+		fi
+
+		if [ -n "$IN_BLOCK" ]; then
+			printf '%s\n' "$line" | htmlesc -d >> "$OUT"
+		fi
+
+		if printf '%s' "$line" | grep -q "^$INDENT<pre><code"; then
+			IN_BLOCK=1
+			OUT="${FILENAME%.*}.html.$BLOCK_NUMBER.txt"
+			BLOCK_NUMBER=$((BLOCK_NUMBER + 1))
+			printf '%s\n' "$line" |
+				sed "s|^\($INDENT<pre><code.*>\)\(.*\)$|\2|" |
+				htmlesc -d > "$OUT"
+			printf '%s\n' "$OUT" >> "$SNIPPETS"
+		fi
+	done < "$F"
+
+	BLOCK_NUMBER=0
+	while read -r line; do
+		printf '%s\n' "$line"
+
+		if [ "$line" = '</code></pre>' ]; then
+			printf '%s<p class="plaintext-link"><a href="%s">plaintext</a></p>\n' \
+				"$INDENT" \
+				"$(basename "${url_part:?}").$BLOCK_NUMBER.txt"
+			BLOCK_NUMBER=$((BLOCK_NUMBER + 1))
+		fi
+	done < "$F"
+)
+
+add_line_numbers() {
+	awk '
+		/^<\/code><\/pre>$/ {
+			in_block = 0
+			printf "</tbody></table>%s\n", $0
+			next
+		}
+
+		match($0, /^( +<pre><code.*>)(.*)$/, a) {
+			printf "%s<table rules=columns class=\"code-block\"><tbody>", a[1]
+
+			n = 1
+			block_count++
+			printf "<tr><td class=\"line-number\"><a id=\"B%s-L%s\" href=\"#B%s-L%s\">%s</a></td><td class=\"code-line\">%s</td></tr>\n", block_count, n, block_count, n, n, a[2]
+			in_block = 1
+			next
+		}
+
+		in_block == 1 {
+			n++
+			printf "<tr><td class=\"line-number\"><a id=\"B%s-L%s\" href=\"#B%s-L%s\">%s</a></td><td class=\"code-line\">%s</td></tr>\n", block_count, n, block_count, n, n, $0
+			next
+		}
+
+		{ print }
+	'
+}
+
+add_headings_anchors() (
+	IFS=''
+	while read -r line; do
+		if ! printf '%s' "$line" | grep -q "^$INDENT<h[2-6]>"; then
+			printf '%s\n' "$line"
+			continue
+		fi
+		LVL="$(printf '%s' "$line" | sed "s|^$INDENT<h\(.\)>.*|\1|")"
+		HEADING="$(printf '%s' "$line" | sed "s|^$INDENT<h.>\(.*\)</h.>$|\1|")"
+		SLUG="$(slugify "$HEADING")"
+		printf '%s<h%s class="header-anchor" id="%s">%s<a href="#%s" aria-hidden="true"><img class="svg-icon" src="%s" /></a></h%s>\n' \
+			"$INDENT"  \
+			"$LVL"     \
+			"$SLUG"    \
+			"$HEADING" \
+			"$SLUG"    \
+			"${icon_link_url:?}" \
+			"$LVL"
+	done
+)
+
+
+warn_duplicate_ids() {
+	F="$(mkstemp)"
+	tee "$F"
+	{
+		grep "^$INDENT<h[2-6] class=\"header-anchor\" id=\"" |
+			sed "s|^$INDENT<h[2-6] class=\"header-anchor\" id=\"\(.*\)\">.*<a href=.*$|\1|" |
+			sort |
+			uniq -c |
+			awk -v F="$FILENAME" '$1 != 1 {
+				printf "WARNING: duplicate header id: %s: %s\n", F, $2
+			}'
+	} >&2 < "$F"
+	rm "$F"
+}
+
+emit_body() {
+	< "${FILENAME%.*}.content" \
+		markdown_to_html           |
+		extract_plaintext_snippets |
+		add_line_numbers           |
+		add_headings_anchors       |
+		warn_duplicate_ids
+}
+
+if [ -r "$FILENAME".prev ]; then
+	collection_head_prev_html="$(
+		printf '    <link rel="prev"       type="text/html"            href="%s" />' \
+			"$(url-for < "$FILENAME".prev)"
+	)"
+	export collection_head_prev_html
+fi
+
+if [ -r "$FILENAME".next ]; then
+	collection_head_next_html="$(
+		printf '    <link rel="next"       type="text/html"            href="%s" />' \
+			"$(url-for < "$FILENAME".next)"
+	)"
+	export collection_head_next_html
+fi
+
+envsubst < lib/preamble.html  | sed '/^$/d'
+emit_body | tee "${FILENAME%.*}.htmlbody"
+envsubst < lib/postamble.html | sed '/^$/d'
diff --git a/src/htmlbody b/src/htmlbody
new file mode 100755
index 0000000..53a4485
--- /dev/null
+++ b/src/htmlbody
@@ -0,0 +1,4 @@
+#!/bin/sh
+set -eu
+
+cat "${1:--}" | asciidoctor -s -
diff --git a/src/mkwb.in b/src/mkwb.in
new file mode 100755
index 0000000..2c698e1
--- /dev/null
+++ b/src/mkwb.in
@@ -0,0 +1,12 @@
+#!/bin/sh
+set -eu
+
+usage() {
+	echo 'Usage: mkwb ACTION [OPTION...]'
+}
+
+ACTION="${1:-}"
+eval "$(assert-arg -- "$ACTION" 'ACTION')"
+shift
+
+exec '@LIBEXECDIR@'/"$ACTION" "$@"
diff --git a/src/sortdata b/src/sortdata
new file mode 100755
index 0000000..5b0b238
--- /dev/null
+++ b/src/sortdata
@@ -0,0 +1,14 @@
+#!/bin/sh
+set -eu
+
+usage() {
+	echo 'Usage: sortdata ENTRYPATH'
+}
+
+ENTRYPATH="${1:-}"
+eval "$(assert-arg -- "$ENTRYPATH" 'ENTRYPATH')"
+. "${ENTRYPATH%.*}.conf"
+
+f=src/"$date_iso".sortdata
+ln -frs "${ENTRYPATH%.*}.xmlentry" "$f" # FIXME: -r is no POSIX
+printf '%s\n' "$f"
diff --git a/src/xmlentry b/src/xmlentry
new file mode 100755
index 0000000..c2458d1
--- /dev/null
+++ b/src/xmlentry
@@ -0,0 +1,48 @@
+#!/bin/sh
+set -eu
+
+
+usage() {
+	echo 'Usage: xmlentry FILENAME'
+}
+
+FILENAME="${1:-}"
+eval "$(assert-arg -- "$FILENAME" 'FILENAME')"
+. "${FILENAME%.*}.conf"
+
+
+title_html=
+url_absolute=
+update_xml=
+cat <<EOF
+  <entry xml:lang="$lang">
+    <title type="html">
+      $title_html
+    </title>
+    <link type="text/html" rel="alternative" href="$url_absolute" title="$title_html" />
+    <published>
+      $date_iso
+    </published>
+$update_xml
+    <id>
+      $url_absolute
+    </id>
+    <author>
+      <name>
+        $author
+      </name>
+      <email>
+        $email
+      </email>
+    </author>
+
+    <summary type="html">
+EOF
+
+head -n1 < "${FILENAME%.*}.htmlbody" | htmlesc
+printf '    </summary>\n'
+printf '    <content type="html" xml:base="%s">\n' "${url:?}"
+
+htmlesc < "${FILENAME%.*}.htmlbody"
+printf '    </content>\n'
+printf '  </entry>\n'
-- 
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