Meta: Commit Snapshot and Review Draft support

See whatwg/meta#92 for details. And whatwg/html-build#151 and whatwg/wattsi#70 for changes that are needed as well.

.gitattributes

@@ -1,4 +1,5 @@
 source      text eol=lf diff=html linguist-language=HTML
+*.wattsi    text eol=lf diff=html linguist-language=HTML
 
 *.css       text eol=lf
 *.html      text eol=lf

.travis.yml

@@ -7,6 +7,7 @@ env:
     - secure: "qI0QEOmT3P3x9MfWwY0F43CxV8MRvuYDUtGRXIXs1Utpk/1wJv4zsebyHabuusEai9QakRo1kexwAuAcbyeiFTXKwn8DKIId2BDx14/fzmHSsyj86W1Tao5HAoD4NDQReI+c3LX5ipDtInlBXip0NgMMmQiT4+IzVkf9itAewCg="
     - ENCRYPTION_LABEL="1536cf00117f"
 script:
+  - shellcheck review-draft.sh
   - cd .. &&
     git clone https://github.com/whatwg/html-build.git html-build &&
     bash html-build/ci-deploy/outside-container.sh

CONTRIBUTING.md

@@ -20,7 +20,7 @@ To preview your changes locally, follow the instructions in the [html-build repo
 
 In addition to generating the [singlepage](https://html.spec.whatwg.org/) and [multipage](https://html.spec.whatwg.org/multipage/) specifications, we also generate an [edition for developers](https://html.spec.whatwg.org/dev/). This is meant to exclude content that is of interest only to implementers. We can always use community help in properly enforcing this distinction, especially since for a long period the developer's edition was not working and so we made a lot of changes without properly considering their impact on it.
 
-To mark an element as being omitted from the developer's edition, use a `w-nodev` attribute. Similarly, to mark something up as being omitted from the singlepage and multipage versions, use a `w-nohtml` attribute. This may require introducing container `<div>`s or `<span>`s; that's fine. Note that Web IDL blocks (`<pre class="idl">`) are automatically omitted by the build process, and so don't need `w-nodev` attributes.
+To mark an element as being omitted from the developer's edition, use a `w-nodev` attribute. To only include it in the developer's edition, use a `w-dev` attribute. This may require introducing container `<div>`s or `<span>`s; that's fine. Note that Web IDL blocks (`<pre class="idl">`) are automatically omitted by the build process, and so don't need `w-nodev` attributes. (There also exist `w-nohtml`, `w-nosnap`, and `w-noreview` attributes which exclude information from the Living Standard, the Commit Snapshot, and the Review Draft respectively. Day-to-day changes will not require them.)
 
 Another interesting feature is the `subdfn` attribute. This is useful for when something is defined inside text that is not present in the developer's edition (such as a Web IDL block). In that case, we can use the `subdfn` attribute on something which has a matching `data-x` attribute, to indicate the definition of the term for the purposes of the developer's edition.
 

Makefile

@@ -0,0 +1,5 @@
+default:
+	@echo "Please see CONTRIBUTING.md for instructions on building HTML."
+
+review: source
+	@./review-draft.sh

review-draft.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+set -o errexit
+set -o nounset
+
+# This is based on a script named review.sh over at
+# https://github.com/whatwg/whatwg.org/tree/master/resources.whatwg.org/build
+#
+# Please see https://github.com/whatwg/meta/blob/master/MAINTAINERS.md for information on creating
+# and announcing Review Drafts.
+
+INPUT="source"
+
+mkdir -p "review-drafts"
+REVIEW_DRAFT="review-drafts/$(date +'%Y-%m').wattsi"
+
+# Note that %B in date is locale-specific. Let's hope for English.
+sed -e 's/^  <title w-nodev>HTML Standard<\/title>$/  <title w-nodev>HTML Standard Review Draft '"$(date +'%B %Y')"'<\/title>/' \
+    -e 's/^    <h2 w-nohtml w-nosnap id="living-standard" class="no-num no-toc">Review Draft &mdash; Published <span class="pubdate">\[DATE: 01 Jan 1901\]<\/span><\/h2>$/    <h2 w-nohtml w-nosnap id="living-standard" class="no-num no-toc">Review Draft \&mdash; Published '"$(date +'%d %B %Y')"'<\/h2>/' \
+    -e 's/<span class="pubyear">\[DATE: 1901\]<\/span>/'"$(date +'%Y')"'/' \
+    < "$INPUT" > "$REVIEW_DRAFT"
+echo "Created Review Draft at $REVIEW_DRAFT"
+echo "Please verify that only three lines changed relative to $INPUT:"
+diff -up "$INPUT" "$REVIEW_DRAFT" || exit 0