releng.wtpbuilder/scripts/build/checkForFastFail.xml

<project
    default="checkForFastFail"
    basedir=".">

    <target name="checkForFastFail">


        <property
            name="resource"
            value="${env.LOG_DIR}/${projectname}/antBuilderOutput.log"/>
        <!--          
        <property
            name="resource"
            value="/opt/public/webtools/committers/wtp-R3.3.0-I/20110308135648/I-3.3.0-20110308135648/antBuilderOutput.log"/>
       -->

        <!-- remember to quote any grep special characters, such as bracket ([) -->
        <antcall target="checkForString">
            <param
                name="stringToCheck"
                value="cvs \[export aborted\]\:"/>
            <param
                name="shortDescription"
                value="Problem with CVS checkout. Check tag. Perhaps network. "/>
        </antcall>

        <antcall target="checkForString">
            <param
                name="stringToCheck"
                value="\[p2.repo2runnable\] \[Fatal Error\]"/>
            <param
                name="shortDescription"
                value="P2 fetch or install problem. Check tags? Network? Or ... just re-run."/>
        </antcall>
                    
        <!-- note use of wild card (.) since can not embbed apostophe (') in so many other quotes and apostrophes -->
        <antcall target="checkForString">
            <param
                name="stringToCheck"
                value="\[get\] Can.t get http"/>
            <param
                name="shortDescription"
                value="Problem getting prereq via http. Check name or spelling. "/>
        </antcall>

        <antcall target="checkForString">
            <param
                name="stringToCheck"
                value="BUILD FAILED"/>
            <param
                name="shortDescription"
                value="Generic failure for unknown reasons. See log context. "/>
        </antcall>


    </target>
    <target name="checkForString">
        <!-- can not echo string here ... or, next check will find it, instead of real one
        <echo message="   Checking for '${stringToCheck}'"/>
        
        Note that we "capture" errorProperty, in an effort to avoid "error result: 1" being logged
        to our standard output. Grep returns a "1" if there is no match ... which isn't really an 
        error, but makes output "look funny" seeing so many error codes, especially in CC logs. 
        TODO: we could check if error was greater than or equal to '2', which is somesort of "real" error. 
        -->
        <exec
            executable="grep"
            outputproperty="reasonFailed"
            resultproperty="returnCode"
            errorproperty="ignoredErrored"
            error="${env.LOG_DIR}/${projectname}/grepError.log"
            failonerror="false">
            <arg line="-s --max-count 1 --after-context 20 --before-context 10 --regexp='${stringToCheck}' ${resource}"/>
        </exec>

        <!-- it appears the exec, at least for grep, returns an empty string if no match 
             so we follow that check to see if return result has length. TODO: could maybe use return code? -->
        <condition
            property="reasonFailedText"
            value="${reasonFailed}">
            <length
                string="${reasonFailed}"
                trim="true"
                when="greater"
                length="0"/>
        </condition>

        <antcall target="copyAndFailIfReason"/>
    </target>

    <target
        name="copyAndFailIfReason"
        if="reasonFailedText">

        <property
            name="formatedReasonFailedText"
            value="FAST FAIL CHECK found matching string '${stringToCheck}'${line.separator}----------------${line.separator}Context of matching text leading to fast fail (-10 to +20 lines, see ${resource} if reason not obvious from context): ${line.separator}----------------${line.separator}${reasonFailedText}${line.separator}----------------${line.separator}"/>
            
        <!-- be sure to echo reason msg to log -->
        <!-- TODO: we could write this to a file, and make available from download page -->

        <echo message="FAST FAIL CHECK found reason to end build: ${shortDescription}"/>
        <echo message="Resource being used in fast fail check: ${resource}"/>
        <echo message="${formatedReasonFailedText}"/>
        
        <!-- copy early, if we can ... else site won't be created, when we fail -->
        <ant antfile="${wtp.builder.home}/scripts/build/copyArtifactsEarly.xml"/>

        <fail message="${shortDescription}"/>
    </target>

</project>