Basic support for Atom feeds

[Shrine-XSLT] / GNUmakefile

diff --git a/GNUmakefile b/GNUmakefile
index b8bbd4a0820324b743afbb39c17e36f8e7b7d8d1..a6b7b4acd46440336a8a14c3f66d2d495d8428dd 100644 (file)
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -1,13 +1,15 @@
 SHELL = /bin/sh
 
-# This GNUmakefile searches the `sources/` directory for files with an extension of `.xml` and applies `transform.xslt` to them, outputting the result in one of two locations :—
+# This GNUmakefile searches the `sources/` directory for files with an extension of `.atom` or `.xml` and applies `transform.xslt` to them, outputting the result in one of the following locations :—
 #
 # • For files with a location of `sources/index.xml` or `sources/index-*.xml`, the transformed file will be written to `public/%.html` (where `%` is the filename).
 #
 # • For all other files with a location of `sources/*.xml` or `sources/*/*.xml`, the transformed file will be written to `public/%/index.html` (where `%` is the filename and subdirectory if applicable).
-# Other files in the corresponding directory (i·e without the `.xml`) are copied over verbatim.
+# Any files in a corresponding sibling directory (i·e without the `.xml`) are copied over verbatim.
 # Only one level of subdirectory is supported.
 #
+# • For files with a location of `sources/*.atom` or `sources/*/*.atom`, the transformed file will be written to `public/%.atom` (where `%` is the filename and subdirectory if applicable).
+#
 # By default, running `make` will do this for all applicable source files.
 #
 # ___
@@ -17,12 +19,15 @@ SHELL = /bin/sh
 # This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
 # If a copy of the MPL was not distributed with this file, You can obtain one at https://mozilla.org/MPL/2.0/.
 
+BASEIRI = http://example.com
+DATETIME = $(shell date -Iseconds)
+TRANSFORM = transform.xslt
 XSLT = xsltproc
 XSLTOPTS =
 
 headers := $(wildcard *-header.xml)
 footers := $(wildcard *-footer.xml)
-override prerequisites := transform.xslt $(headers) $(footers)
+override prerequisites := $(TRANSFORM) $(headers) $(footers)
 
 override indexsources := $(wildcard sources/index.xml sources/index-*.xml)
 override indices := $(patsubst sources/%.xml,public/%.html,$(indexsources))
@@ -33,23 +38,45 @@ override pages := $(patsubst sources/%.xml,public/%/index.html,$(pagesources))
 override resourcesources := $(wildcard $(addsuffix /*,$(basename $(pagesources))))
 override resources := $(patsubst sources/%,public/%,$(resourcesources))
 
+override feedsources := $(filter-out $(resourcesources),$(wildcard sources/*.atom sources/*/*.atom))
+override feeds := $(patsubst sources/%.atom,public/%.atom,$(feedsources))
+
 override content := $(indices) $(pages)
 
-override makexslt = $(XSLT) --nonet --novalid $(XSLTOPTS) -o $(2) transform.xslt $(1)
+# This function does the following :—
+#
+# • Calls `transform.xslt` with the `$(1)`, providing `$(BASEIRI)` and `$(DATETIME) as params and providing `$(2)` (minus the initial `public/`) as the param `OUTPUTPATH`.
+#
+# • Removes any `xmlns` prefix declarations from output to `.html` files (with `sed`).
+#
+# • Removes any doctype for root elements other than `html` (with `grep -v`).
+#
+# • Saves the output to `$(2)`.
+override makexslt = $(XSLT) --nonet --novalid $(XSLTOPTS) --stringparam BASEIRI "$(BASEIRI)" --stringparam DATETIME "$(DATETIME)" --stringparam OUTPUTPATH "$(patsubst public/%,/%,$(2))" transform.xslt $(1)\
+       $(if $(filter %.html,$(2)),| sed 's/ xmlns:[0-9A-Za-z_-]*="[^"]*"//g',)\
+       | grep -v '^<!DOCTYPE \([^h]\|.[^t]\|..[^m]\|...[^l]\|....[^ >]\)'\
+       > $(2)
 
-all: $(content) $(resources);
+all: $(content) $(resources) $(feeds);
 
 $(indices): public/%.html: sources/%.xml $(prerequisites)
        @echo "Generating $@…"
+       @mkdir -p $(dir $@)
        @$(call makexslt,$<,$@)
 
 $(pages): public/%/index.html: sources/%.xml $(prerequisites)
        @echo "Generating $@…"
+       @mkdir -p $(dir $@)
        @$(call makexslt,$<,$@)
 
 $(resources): public/%: sources/%
        @echo "Copying over $@…"
-       @mkdir -p $(dir $<)
+       @mkdir -p $(dir $@)
        @cp $< $@
 
+$(feeds): public/%.atom: sources/%.atom $(TRANSFORM)
+       @echo "Generating $@…"
+       @mkdir -p $(dir $@)
+       @$(call makexslt,$<,$@)
+
 .PHONY: all ;