Enable two‐stage builds using a “data” directory

[Shushe] / README.markdown

diff --git a/README.markdown b/README.markdown
index 013e3ede21843de1ae5653e6928afe4e682d696d..503a16338dda83163e59c655e8c9a02cf00d66ec 100644 (file)
--- a/README.markdown
+++ b/README.markdown
@@ -244,6 +244,14 @@ The following additional variables can be used to control the behaviour
   Multiple include directories can be provided, so long as the same
     file subpath doesn’t exist in more than one of them.
 
   Multiple include directories can be provided, so long as the same
     file subpath doesn’t exist in more than one of them.
 

+- **`DATADIR`:**
+  If set to the location of a directory, ⛩📰 书社 will run a two‐stage build.
+  In the first stage, only files in `SRCDIR` which match `FINDDATARULES` (see below) will be built, with files in `DATADIR` serving as includes.
+  In the second stage, the remaining files in `SRCDIR` will be built, with the files built during the first stage, in addition to any files in `INCLUDEDIR`, serving as includes.
+  Files built during the first stage are copied into `DESTDIR` alongside those from the second stage when installing.
+
+  This functionality is intended for sites where the bulk of the site can be built from a few data files which are expensive to create.
+

 - **`BUILDDIR`:**
   The location of the (temporary) build directory (default: `build`).
   `make clean` will delete this, and it is recommended that it not be
 - **`BUILDDIR`:**
   The location of the (temporary) build directory (default: `build`).
   `make clean` will delete this, and it is recommended that it not be


@@ -299,6 +307,18 @@ The following additional variables can be used to control the behaviour
     default, to enable additional rules without overriding the existing
     ones.
 
     default, to enable additional rules without overriding the existing
     ones.
 

+- **`DATAEXT`:**
+  A list of file extensions which signify “data” files during a two‐stage build using `DATADIR`.
+
+- **`FINDDATARULES`:**
+  Rules to use with `find` when searching for data files.
+  By default, these rules are derived from `DATAEXT`.
+
+- **`EXTRAFINDDATARULES`:**
+  The value of this variable is appended to `FINDDATARULES` by
+    default, to enable additional rules without overriding the existing
+    ones.
+

 - **`PARSERS`:**
   A white·space‐separated list of parsers to use (default:
     `$(THISDIR)/parsers/*.xslt`).
 - **`PARSERS`:**
   A white·space‐separated list of parsers to use (default:
     `$(THISDIR)/parsers/*.xslt`).


@@ -307,6 +327,15 @@ The following additional variables can be used to control the behaviour
   The value of this variable is appended to `PARSERS` by default, to
     enable additional parsers without overriding the existing ones.
 
   The value of this variable is appended to `PARSERS` by default, to
     enable additional parsers without overriding the existing ones.
 

+- **`PARSERLIBS`:**
+  A white·space‐separated list of parser dependencies (default:
+    `$(THISDIR)/lib/split.xslt`).
+
+- **`EXTRAPARSERLIBS`:**
+  The value of this variable is appended to `PARSERLIBS` by default, to
+    enable additional parser dependencies without overriding the
+    existing ones.
+

 - **`TRANSFORMS`:**
   A white·space‐separated list of transforms to use (default:
     `$(THISDIR)/transforms/*.xslt`).
 - **`TRANSFORMS`:**
   A white·space‐separated list of transforms to use (default:
     `$(THISDIR)/transforms/*.xslt`).


@@ -315,6 +344,15 @@ The following additional variables can be used to control the behaviour
   The value of this variable is appended to `TRANSFORMS` by default, to
     enable additional transforms without overriding the existing ones.
 
   The value of this variable is appended to `TRANSFORMS` by default, to
     enable additional transforms without overriding the existing ones.
 

+- **`TRANSFORMLIBS`:**
+  A white·space‐separated list of transform dependencies (default:
+    `$(THISDIR)/lib/serialize.xslt`).
+
+- **`EXTRATRANSFORMLIBS`:**
+  The value of this variable is appended to `TRANSFORMLIBS` by default,
+    to enable additional transform dependencies without overriding the
+    existing ones.
+

 - **`XMLTYPES`:**
   A white·space‐separated list of media types or media type suffixes to
     consider X·M·L (default: `application/xml text/xml +xml`).
 - **`XMLTYPES`:**
   A white·space‐separated list of media types or media type suffixes to
     consider X·M·L (default: `application/xml text/xml +xml`).


@@ -547,6 +585,8 @@ Transforms are used to convert X·M·L files into their final output,
     media types into the appropriate H·T·M·L elements, and deletes
     `<html:style>` elements from the body of the document and moves
     them to the head.
     media types into the appropriate H·T·M·L elements, and deletes
     `<html:style>` elements from the body of the document and moves
     them to the head.

+  This conversion happens during the application phase, after the main
+    transformation.

 
 - **`transforms/metadata.xslt`:**
   Provides basic `<html:head>` metadata.
 
 - **`transforms/metadata.xslt`:**
   Provides basic `<html:head>` metadata.


@@ -618,11 +658,6 @@ The following params are made available globally in parsers and
 - **`THISREV`:**
   The value of the `THISREV` variable (if present).
 
 - **`THISREV`:**
   The value of the `THISREV` variable (if present).
 

-The following params are only available in transforms :⁠—
-
-- **`PATH`:**
-  The path of the output file (within `DESTDIR`).
-

 ## Output Wrapping
 
 Provided at least one toplevel result element belongs to the H·T·M·L
 ## Output Wrapping
 
 Provided at least one toplevel result element belongs to the H·T·M·L


@@ -651,9 +686,8 @@ As a part of this process, after performing the initial transform
     `<html:head>` of the output.
 
 The document being matched will contain the full transform result
     `<html:head>` of the output.
 
 The document being matched will contain the full transform result

-  prior to wrapping as well as an `<xslt:include>` element (with an
-  `@书社:id` attribute) for each transform which has a valid
-  `<书社:id>`.
+  prior to wrapping as well as an `<书社:id>` element for each
+  transform.

 The latter elements can be matched to enable transforms to provide
   content _without_ matching any elements in the result; for example,
   the following transform adds a link to a stylesheet to the
 The latter elements can be matched to enable transforms to provide
   content _without_ matching any elements in the result; for example,
   the following transform adds a link to a stylesheet to the


@@ -670,7 +704,7 @@ The latter elements can be matched to enable transforms to provide
   version="1.0"
 >
   <书社:id>example:add-stylesheet-links.xslt</书社:id>
   version="1.0"
 >
   <书社:id>example:add-stylesheet-links.xslt</书社:id>

-  <template match="xslt:include[@书社:id='example:add-stylesheet-links.xslt']" mode="书社:metadata">
+  <template match="书社:id[string(.)='example:add-stylesheet-links.xslt']" mode="书社:metadata">

     <html:link rel="stylesheet" type="text/css" href="/style.css"/>
   </template>
 </transform>
     <html:link rel="stylesheet" type="text/css" href="/style.css"/>
   </template>
 </transform>