Replaced local Git log extraction with CGit ATOM feeds

* I just realized that repository specific commit feeds are already provided by both CGit and GitHub
** i.e. I made the mistake of not checking if my current system already provides the required functionality when I wanted to aggregate my commits and found this to be a use case for StaticXSLT
* feeds are fetched via `curl`
** this will be a local request in production
** the messages are still cleaned using `sed` and transformed into _XHTML_ using `peg-markdown`
* instead of reading a customized Git log output CommitLog now simply transforms CGit ATOM feeds using identity templates
** this requires ATOM namespace removal which is implemented in `utility/remove_namespace.xsl`

11 files changed, 91 insertions, 136 deletions

diff --git a/source/00_content/meta.xml b/source/00_content/meta.xml
index 56bbb9d..869431b 100644
--- a/source/00_content/meta.xml
+++ b/source/00_content/meta.xml
@@ -3,9 +3,4 @@
 	<title>CommitLog</title>
 	<url>http://localhost:8000</url>
 	<commit_count>20</commit_count>
-
-	<mirror>
-		<repository>http://code.kummerlaender.eu</repository>
-		<commit>commit/?id=</commit>
-	</mirror>
 </datasource>
diff --git a/source/00_content/repositories.xml b/source/00_content/repositories.xml
index d7b0f05..6f0cbfd 100644
--- a/source/00_content/repositories.xml
+++ b/source/00_content/repositories.xml
@@ -1,24 +1,24 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <datasource>
 	<entry handle="InputXSLT">
-		<path>~/projects/dev/InputXSLT</path>
+		<feed>http://code.kummerlaender.eu/InputXSLT/atom/?h=master</feed>
 	</entry>
 	<entry handle="blog.kummerlaender.eu">
-		<path>~/projects/dev/blog.kummerlaender.eu</path>
+		<feed>http://code.kummerlaender.eu/blog.kummerlaender.eu/atom/?h=master</feed>
 	</entry>
 	<entry handle="SimpleParser">
-		<path>~/projects/dev/parser</path>
+		<feed>http://code.kummerlaender.eu/SimpleParser/atom/?h=master</feed>
 	</entry>
 	<entry handle="StaticXSLT">
-		<path>~/projects/dev/StaticXSLT</path>
+		<feed>http://code.kummerlaender.eu/StaticXSLT/atom/?h=master</feed>
 	</entry>
 	<entry handle="BuildXSLT">
-		<path>~/projects/dev/BuildXSLT</path>
+		<feed>http://code.kummerlaender.eu/BuildXSLT/atom/?h=master</feed>
 	</entry>
 	<entry handle="GraphStorage">
-		<path>~/projects/dev/graphdb</path>
+		<feed>http://code.kummerlaender.eu/GraphStorage/atom/?h=master</feed>
 	</entry>
 	<entry handle="BinaryMapping">
-		<path>~/projects/dev/BinaryMapping</path>
+		<feed>http://code.kummerlaender.eu/BinaryMapping/atom/?h=master</feed>
 	</entry>
 </datasource>
diff --git a/source/01_raw/commits.xsl b/source/01_raw/repository_feeds.xsl
index b5fe201..24cc2d8 100644
--- a/source/01_raw/commits.xsl
+++ b/source/01_raw/repository_feeds.xsl
@@ -7,18 +7,18 @@
 >
 
 <xsl:include href="[utility/datasource.xsl]"/>
+<xsl:include href="[utility/remove_namespace.xsl]"/>
 
 <xsl:variable name="meta">
-	<datasource type="main"    mode="full" source="00_content/repositories.xml" target="repositories"/>
-	<datasource type="support" mode="full" source="00_content/meta.xml"         target="meta"/>
-	<target     mode="plain" value="commits.xml"/>
+	<datasource type="main"  mode="full" source="00_content/repositories.xml" target="repositories"/>
+	<target     mode="plain" value="repository_feeds.xml"/>
 </xsl:variable>
 
 <xsl:template match="repositories/entry">
 	<entry handle="{@handle}">
-		<xsl:copy-of select="InputXSLT:external-command(
-			concat('./utility/git_log.sh ', path, ' ', $root/meta/commit_count)
-		)/self::command/commit"/>
+		<xsl:apply-templates mode="remove_namespace" select="InputXSLT:external-command(
+			concat('./utility/fetch_feed.sh ', feed/text())
+		)/self::command/feed/entry"/>
 	</entry>
 </xsl:template>
 
diff --git a/source/02_augment/commits.xsl b/source/02_augment/commits.xsl
index 27f9bcd..7f17240 100644
--- a/source/02_augment/commits.xsl
+++ b/source/02_augment/commits.xsl
@@ -2,49 +2,66 @@
 <xsl:stylesheet
 	version="1.0"
 	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
-	xmlns:InputXSLT="function.inputxslt.application"
-	exclude-result-prefixes="InputXSLT"
 >
 
 <xsl:include href="[utility/datasource.xsl]"/>
+<xsl:include href="[utility/formatter.xsl]"/>
 
 <xsl:variable name="meta">
-	<datasource type="main" mode="full" source="01_raw/commits.xml" target="repositories"/>
+	<datasource type="main"  mode="full" source="01_raw/repository_feeds.xml" target="repositories"/>
 	<target     mode="plain" value="commits.xml"/>
 </xsl:variable>
 
-<xsl:template name="formatter">
-	<xsl:param name="format"/>
-	<xsl:param name="source"/>
-
-	<xsl:copy-of select="InputXSLT:external-command(
-		$format,
-		$source
-	)/self::command/node()"/>
+<xsl:template match="entry" mode="commit">
+	<commit hash="{id}">
+		<xsl:apply-templates select="@*|node()" mode="commit"/>
+	</commit>
 </xsl:template>
 
-<xsl:template match="date" mode="commit">
+<xsl:template match="id"                       mode="commit"/>
+<xsl:template match="updated"                  mode="commit"/>
+<xsl:template match="content[@type = 'xhtml']" mode="commit"/>
+
+<xsl:template match="author" mode="commit">
 	<xsl:copy>
+		<xsl:value-of select="name"/>
+	</xsl:copy>
+</xsl:template>
+
+<xsl:template match="published" mode="commit">
+	<date>
 		<xsl:attribute name="time">
 			<xsl:value-of select="substring(text(), 12, 5)"/>
 		</xsl:attribute>
 
 		<xsl:apply-templates select="@*|node()" mode="commit"/>
-	</xsl:copy>
+	</date>
 </xsl:template>
 
-<xsl:template match="date/text()" mode="commit">
+<xsl:template match="published/text()" mode="commit">
 	<xsl:value-of select="substring(., 0, 11)"/>
 </xsl:template>
 
-<xsl:template match="message/text()" mode="commit">
+<xsl:template match="link" mode="commit">
+	<link>
+		<xsl:value-of select="@href"/>
+	</link>
+</xsl:template>
+
+<xsl:template match="content[@type = 'text']" mode="commit">
+	<message>
+		<xsl:apply-templates select="node()" mode="commit"/>
+	</message>
+</xsl:template>
+
+<xsl:template match="content[@type = 'text']/text()" mode="commit">
 	<xsl:call-template name="formatter">
 		<xsl:with-param name="format">markdown</xsl:with-param>
 		<xsl:with-param name="source" select="."/>
 	</xsl:call-template>
 </xsl:template>
 
-<xsl:template match="@*|node()" mode="commit">
+<xsl:template match="@* | node()" mode="commit">
 	<xsl:copy>
 		<xsl:apply-templates select="@*|node()" mode="commit"/>
 	</xsl:copy>
@@ -52,7 +69,7 @@
 
 <xsl:template match="repositories/entry">
 	<entry handle="{@handle}">
-		<xsl:apply-templates select="commit" mode="commit"/>
+		<xsl:apply-templates select="entry" mode="commit"/>
 	</entry>
 </xsl:template>
 
diff --git a/source/99_result/repository/atom.xsl b/source/99_result/repository/atom.xsl
deleted file mode 100644
index f858dea..0000000
--- a/source/99_result/repository/atom.xsl
+++ /dev/null
@@ -1,81 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<xsl:stylesheet
-	version="1.0"
-	xmlns="http://www.w3.org/2005/Atom"
-	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
->
-
-<xsl:output
-	method="xml"
-	omit-xml-declaration="no"
-	encoding="UTF-8"
-	indent="no"
-/>
-
-<xsl:include href="[utility/xhtml.xsl]"/>
-
-<xsl:variable name="meta">
-	<datasource type="main"    mode="iterate" source="02_augment/commits.xml" target="repository"/>
-	<datasource type="support" mode="full"    source="00_content/meta.xml"    target="meta"/>
-	<target     mode="xpath"   value="concat($datasource/repository/entry/@handle, '.xml')"/>
-</xsl:variable>
-
-<xsl:variable name="root"   select="/datasource"/>
-<xsl:variable name="title"  select="datasource/repository/entry/@handle"/>
-<xsl:variable name="url"    select="concat($root/meta/url, '/feed/', $title, '.xml')"/>
-<xsl:variable name="latest" select="repository/entry/commit[1]"/>
-
-<xsl:template match="datasource">
-	<feed>
-		<link href="{$url}" rel="self" title="{$title}" type="application/atom+xml"/>
-
-		<id>
-			<xsl:value-of select="$url"/>
-		</id>
-		<title>
-			<xsl:value-of select="$title"/>
-		</title>
-		<updated>
-			<xsl:value-of select="$latest/date"/>
-			<xsl:text>T</xsl:text>
-			<xsl:value-of select="$latest/date/@time"/>
-			<xsl:text>:00+02:00</xsl:text>
-		</updated>
-
-		<xsl:apply-templates select="repository/entry/commit"/>
-	</feed>
-</xsl:template>
-
-<xsl:template match="repository/entry/commit">
-	<entry xmlns="http://www.w3.org/2005/Atom">
-		<id>
-			<xsl:value-of select="@hash"/>
-		</id>
-		<title>
-			<xsl:value-of select="message/h1"/>
-		</title>
-		<link rel="alternate" title="{@hash}">
-			<xsl:attribute name="href">
-				<xsl:value-of select="concat(
-					$root/meta/mirror/repository, '/',
-					../@handle,                   '/',
-					$root/meta/mirror/commit,
-					@hash
-				)"/>
-			</xsl:attribute>
-		</link>
-		<content type="xhtml">
-			<div xmlns="http://www.w3.org/1999/xhtml">
-				<xsl:apply-templates select="message/*[name() != 'h1']" mode="xhtml"/>
-			</div>
-		</content>
-		<updated>
-			<xsl:value-of select="date"/>
-			<xsl:text>T</xsl:text>
-			<xsl:value-of select="date/@time"/>
-			<xsl:text>:00+02:00</xsl:text>
-		</updated>
-	</entry>
-</xsl:template>
-
-</xsl:stylesheet>
diff --git a/source/99_result/timeline.xsl b/source/99_result/timeline.xsl
index 4793e8c..dfcca01 100644
--- a/source/99_result/timeline.xsl
+++ b/source/99_result/timeline.xsl
@@ -44,21 +44,12 @@
 			<xsl:value-of select="$hash"/>
 		</id>
 		<title>
-			<xsl:value-of select="$commit/message/h1"/>
+			<xsl:value-of select="$commit/title"/>
 		</title>
-		<link rel="alternate" title="{@hash}">
-			<xsl:attribute name="href">
-				<xsl:value-of select="concat(
-					$root/meta/mirror/repository, '/',
-					$repository,                  '/',
-					$root/meta/mirror/commit,
-					$hash
-				)"/>
-			</xsl:attribute>
-		</link>
+		<link rel="alternate" title="{$commit/title}" href="{$commit/link}"/>
 		<content type="xhtml">
 			<div xmlns="http://www.w3.org/1999/xhtml">
-				<xsl:apply-templates select="$commit/message/*[name() != 'h1']" mode="xhtml"/>
+				<xsl:apply-templates select="$commit/message/*" mode="xhtml"/>
 			</div>
 		</content>
 		<updated>
diff --git a/utility/fetch_feed.sh b/utility/fetch_feed.sh
new file mode 100755
index 0000000..45dbc6c
--- /dev/null
+++ b/utility/fetch_feed.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+curl $1 | sed  -e 's~^\([\*]\)\{3\}~\t\t\*~g' -e 's~^\([\*]\)\{2\}~\t\*~g'
diff --git a/utility/formatter.xsl b/utility/formatter.xsl
new file mode 100644
index 0000000..d2c2f7c
--- /dev/null
+++ b/utility/formatter.xsl
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xsl:stylesheet
+	version="1.0"
+	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+	xmlns:InputXSLT="function.inputxslt.application"
+	exclude-result-prefixes="InputXSLT"
+>
+
+<xsl:template name="formatter">
+	<xsl:param name="format"/>
+	<xsl:param name="source"/>
+
+	<xsl:copy-of select="InputXSLT:external-command(
+		$format,
+		$source
+	)/self::command/node()"/>
+</xsl:template>
+
+</xsl:stylesheet>
diff --git a/utility/git_log.sh b/utility/git_log.sh
deleted file mode 100755
index 4d00552..0000000
--- a/utility/git_log.sh
+++ /dev/null
@@ -1,7 +0,0 @@
-#!/bin/sh
-
-format="<commit hash=\"%h\"><date>%cd</date><message><![CDATA[# %B]]></message></commit>"
-
-  git  --no-pager -C $1 log -n $2 --date=iso --pretty=tformat:"$format"  \
-| tidy --input-xml yes --escape-cdata true --wrap 0                      \
-| sed  -e 's~^\([\*]\)\{3\}~\t\t\*~g' -e 's~^\([\*]\)\{2\}~\t\*~g'
diff --git a/utility/reference_commit.xsl b/utility/reference_commit.xsl
index 63cb064..3423cd9 100644
--- a/utility/reference_commit.xsl
+++ b/utility/reference_commit.xsl
@@ -20,6 +20,6 @@
 	</xsl:copy>
 </xsl:template>
 
-<xsl:template match="message | date | text()" mode="commit"/>
+<xsl:template match="title | message | date | author | link | text()" mode="commit"/>
 
 </xsl:stylesheet>
diff --git a/utility/remove_namespace.xsl b/utility/remove_namespace.xsl
new file mode 100644
index 0000000..6775901
--- /dev/null
+++ b/utility/remove_namespace.xsl
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xsl:stylesheet
+	version="1.0"
+	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+>
+
+<xsl:template match="*" mode="remove_namespace">
+    <xsl:element name="{local-name()}">
+        <xsl:copy-of select="@*"/>
+        <xsl:apply-templates select="node()" mode="remove_namespace"/>
+    </xsl:element>
+</xsl:template>
+
+<xsl:template match="comment() | processing-instruction()" mode="remove_namespace">
+    <xsl:copy/>
+</xsl:template>
+
+</xsl:stylesheet>