From b5e50a342f7312330dc56026c223b1f17bab1fbf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20Hoguin?= <essen@ninenines.eu>
Date: Mon, 31 Oct 2016 23:28:38 +0200
Subject: Switch asciidoc-manual to using Asciideck

This is a start for moving from Python's Asciidoc to
the Erlang implementation.

Please report any issue with this change, I will fix everything
at lightning speed!
---
 plugins/asciidoc.mk | 80 ++++++++++++++++++++++++++++++++++++++---------------
 1 file changed, 57 insertions(+), 23 deletions(-)

(limited to 'plugins')

diff --git a/plugins/asciidoc.mk b/plugins/asciidoc.mk
index 76ca6d5..5a40848 100644
--- a/plugins/asciidoc.mk
+++ b/plugins/asciidoc.mk
@@ -1,46 +1,80 @@
 # Copyright (c) 2015-2016, Loïc Hoguin <essen@ninenines.eu>
 # This file is part of erlang.mk and subject to the terms of the ISC License.
 
-.PHONY: asciidoc asciidoc-guide asciidoc-manual install-asciidoc distclean-asciidoc
+ifeq ($(filter asciideck,$(DEPS) $(DOC_DEPS)),asciideck)
 
-MAN_INSTALL_PATH ?= /usr/local/share/man
-MAN_SECTIONS ?= 3 7
+.PHONY: asciidoc asciidoc-guide asciidoc-manual install-asciidoc distclean-asciidoc-guide distclean-asciidoc-manual
+
+# Core targets.
 
 docs:: asciidoc
 
+distclean:: distclean-asciidoc-guide distclean-asciidoc-manual
+
+# Plugin-specific targets.
+
 asciidoc: asciidoc-guide asciidoc-manual
 
+# User guide.
+
 ifeq ($(wildcard doc/src/guide/book.asciidoc),)
 asciidoc-guide:
 else
-asciidoc-guide: distclean-asciidoc doc-deps
+asciidoc-guide: distclean-asciidoc-guide doc-deps
 	a2x -v -f pdf doc/src/guide/book.asciidoc && mv doc/src/guide/book.pdf doc/guide.pdf
 	a2x -v -f chunked doc/src/guide/book.asciidoc && mv doc/src/guide/book.chunked/ doc/html/
+
+distclean-asciidoc-guide:
+	$(gen_verbose) rm -rf doc/html/ doc/guide.pdf
 endif
 
-ifeq ($(wildcard doc/src/manual/*.asciidoc),)
+# Man pages.
+
+ASCIIDOC_MANUAL_FILES := $(wildcard doc/src/manual/*.asciidoc)
+
+ifeq ($(ASCIIDOC_MANUAL_FILES),)
 asciidoc-manual:
 else
-asciidoc-manual: distclean-asciidoc doc-deps
-	for f in doc/src/manual/*.asciidoc ; do \
-		a2x -v -f manpage $$f ; \
-	done
-	for s in $(MAN_SECTIONS); do \
-		mkdir -p doc/man$$s/ ; \
-		mv doc/src/manual/*.$$s doc/man$$s/ ; \
-		gzip doc/man$$s/*.$$s ; \
-	done
+
+# Configuration.
+
+MAN_INSTALL_PATH ?= /usr/local/share/man
+MAN_SECTIONS ?= 3 7
+MAN_PROJECT ?= $(shell echo $(PROJECT) | sed 's/^./\U&\E/')
+MAN_VERSION ?= $(PROJECT_VERSION)
+
+# Plugin-specific targets.
+
+define asciidoc2man.erl
+try
+	[begin
+		ok = asciideck:to_manpage(asciideck:parse_file(F), #{
+			compress => gzip,
+			outdir => filename:dirname(F),
+			extra2 => "$(MAN_PROJECT) $(MAN_VERSION)",
+			extra3 => "$(MAN_PROJECT) Function Reference"
+		})
+	end || F <- [$(shell echo $(addprefix $(comma)\",$(addsuffix \",$1)) | sed 's/^.//')]],
+	halt(0)
+catch _:_ ->
+	halt(1)
+end.
+endef
+
+asciidoc-manual:: doc-deps
+
+asciidoc-manual:: $(ASCIIDOC_MANUAL_FILES)
+	$(call erlang,$(call asciidoc2man.erl,$?))
+	$(foreach s,$(MAN_SECTIONS),mkdir -p doc/man$s/ && mv doc/src/manual/*.$s.gz doc/man$s/)
 
 install-docs:: install-asciidoc
 
 install-asciidoc: asciidoc-manual
-	for s in $(MAN_SECTIONS); do \
-		mkdir -p $(MAN_INSTALL_PATH)/man$$s/ ; \
-		install -g `id -u` -o `id -g` -m 0644 doc/man$$s/*.gz $(MAN_INSTALL_PATH)/man$$s/ ; \
-	done
-endif
-
-distclean:: distclean-asciidoc
+	$(foreach s,$(MAN_SECTIONS),\
+		mkdir -p $(MAN_INSTALL_PATH)/man$s/ && \
+		install -g `id -u` -o `id -g` -m 0644 doc/man$s/*.gz $(MAN_INSTALL_PATH)/man$s/)
 
-distclean-asciidoc:
-	$(gen_verbose) rm -rf doc/html/ doc/guide.pdf doc/man3/ doc/man7/
+distclean-asciidoc-manual:
+	$(gen_verbose) rm -rf $(addprefix doc/man,$(MAN_SECTIONS))
+endif
+endif
-- 
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