Add ant targets to get warnings info.

A set of ant targets to allow capturing the build output, effectively
grepping through it to find javac warnings from source files, then
outputting a teamcity info file containing the number.

Change-Id: I54e1ea72c9f7ae39565defb8caf52bf99f5ed941
Reviewed-on: http://gerrit.dmdirc.com/3125
Reviewed-by: Greg Holmes <greg@dmdirc.com>
Automatic-Compile: DMDirc Build Manager

.gitignore

@@ -33,8 +33,11 @@ __history
 /reports/report-pmd.*
 /reports/checkstyle.*
 /reports/deadcode.txt
+/reports/warnings.txt
+/reports/build-log.txt
 /etc/clover.license
 /etc/clover/clover.license
 /.clover
 /test_profile
 /*.key
+/teamcity-info.xml

build-reports.xml

@@ -203,4 +203,44 @@
             -keep class dagger.** { *; }
         </proguard>
     </target>
+
+    <target name="with.warnings">
+        <record name="reports/build-log.txt" action="start"/>
+    </target>
+
+    <target name="warnings-report">
+        <record name="reports/build-log.txt" action="stop"/>
+
+        <copy file="reports/build-log.txt" tofile="reports/warnings.txt">
+            <filterchain>
+                <linecontainsregexp>
+                    <regexp pattern="java:[0-9]+: warning: .*"/>
+                </linecontainsregexp>
+                <trim/>
+                <replacestring from="[javac] ${basedir}${file.separator}" to=""/>
+                <sortfilter/>
+            </filterchain>
+        </copy>
+    </target>
+
+    <target name="teamcity-warnings-report">
+        <resourcecount property="warnings.count">
+            <tokens>
+                <concat>
+                    <filterchain>
+                        <tokenfilter>
+                           <linetokenizer/>
+                        </tokenfilter>
+                    </filterchain>
+                    <fileset file="reports/warnings.txt"/>
+                </concat>
+            </tokens>
+        </resourcecount>
+
+        <copy file="etc/warnings/template.xml" tofile="teamcity-info.xml">
+            <filterset>
+                <filter token="COUNT" value="${warnings.count}"/>
+            </filterset>
+        </copy>
+    </target>
 </project>

etc/warnings/template.xml

@@ -0,0 +1,6 @@
+<build>
+    <statusInfo>
+        <text action="append"> warnings: @COUNT@</text>
+    </statusInfo>
+    <statisicValue key="warnings" value="@COUNT@"/>
+</build>