Separated task planning and processing into separate transformations

* "plan.xsl" traverses the file-tree provided by "list.xsl" and determines the tasks to be executed
* "process.xsl" executes the tasks planned by "plan.xsl" in a sensible order
* this change was implemented to be able to e.g. schedule the linkage tasks for last
** performing them in tree-order caused problems when the generator tried to create symlinks inside non-existing directories
** additionally this further modularizes the processing chain

1 files changed, 89 insertions, 0 deletions

diff --git a/plan.xsl b/plan.xsl
new file mode 100644
index 0000000..6754d14
--- /dev/null
+++ b/plan.xsl
@@ -0,0 +1,89 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xsl:stylesheet
+	version="1.0"
+	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+	xmlns:dyn="http://exslt.org/dynamic"
+	xmlns:xalan="http://xml.apache.org/xalan"
+	xmlns:InputXSLT="function.inputxslt.application"
+	exclude-result-prefixes="dyn xalan InputXSLT"
+>
+
+<xsl:output
+	method="xml"
+	omit-xml-declaration="yes"
+	encoding="UTF-8"
+	indent="yes"
+/>
+
+<xsl:include href="utility/datasource.xsl"/>
+
+<xsl:template name="traverse">
+	<xsl:param name="source"/>
+	<xsl:param name="target"/>
+	<xsl:param name="path"/>
+	<xsl:param name="node"/>
+
+	<xsl:for-each select="$node/directory">
+		<xsl:choose>
+			<xsl:when test=".//file/@extension = '.xsl'">
+				<xsl:call-template name="traverse">
+					<xsl:with-param name="source" select="$source"/>
+					<xsl:with-param name="target" select="$target"/>
+					<xsl:with-param name="path"   select="concat($path, '/', @name)"/>
+					<xsl:with-param name="node"   select="."/>
+				</xsl:call-template>
+			</xsl:when>
+			<xsl:otherwise>
+				<task type="link">
+					<from>
+						<xsl:value-of select="concat($target, '/', $path, '/', @name)"/>
+					</from>
+					<to>
+						<xsl:value-of select="concat($source, '/', $path, '/', @name)"/>
+					</to>
+				</task>
+			</xsl:otherwise>
+		</xsl:choose>
+	</xsl:for-each>
+
+	<xsl:for-each select="$node/file">
+		<xsl:choose>
+			<xsl:when test="@extension = '.xsl'">
+				<task type="generate">
+					<source>
+						<xsl:value-of select="concat($source, '/', $path, '/', @name, @extension)"/>
+					</source>
+					<target>
+						<xsl:value-of select="concat($target, '/', $path)"/>
+					</target>
+				</task>
+			</xsl:when>
+			<xsl:when test="@extension = '.css'">
+				<task type="link">
+					<from>
+						<xsl:value-of select="concat($target, '/', $path, '/', @name, @extension)"/>
+					</from>
+					<to>
+						<xsl:value-of select="concat($source, '/', $path, '/', @name, @extension)"/>
+					</to>
+				</task>
+			</xsl:when>
+		</xsl:choose>
+	</xsl:for-each>
+</xsl:template>
+
+<xsl:template match="datasource">
+	<task type="clean">
+		<path>
+			<xsl:value-of select="meta/target"/>
+		</path>
+	</task>
+
+	<xsl:call-template name="traverse">
+		<xsl:with-param name="source" select="$root/meta/source"/>
+		<xsl:with-param name="target" select="$root/meta/target"/>
+		<xsl:with-param name="node"   select="source"/>
+	</xsl:call-template>
+</xsl:template>
+
+</xsl:stylesheet>