Disk image creation fragment

ant-build-frag.xml

<!-- Fragment from an Ant build.xml file for creating a disk image with bells and whistles. -->

        <property name="dmgname" value="${build.dir}/install-${name}.dmg" />
        <property name="tmpdmg" value="/tmp/${app.name}-installer-tmp.dmg" />
        <property name="volname" value="${app.name}-${VERSION}-Install" />

        <delete file="${tmpdmg}" quiet="yes" failonerror="false" />

        <!-- Create the temporary image -->
        <echo>Making initial image...</echo>
        <exec executable="hdiutil" failonerror="yes" os="Mac OS X">
            <arg value="create" />
            <arg value="-srcfolder" />
            <arg value="${macos.root.dir}" />
            <arg value="-volname" />
            <arg value="${volname}" />
            <arg value="-ov" />
            <arg value="${tmpdmg}" />
            <arg value="-format" />
            <arg value="UDRW" />
        </exec>

        <property name="mnt" value="/tmp" />
        <property name="mntvol" value="/tmp/${volname}" />
        <!-- Attach the temporary image -->
        <exec executable="/usr/bin/hdiutil" os="Mac OS X" failonerror="true">
            <arg value="attach" />
            <arg value="${tmpdmg}" />
            <arg value="-mountroot" />
            <arg value="${mnt}" />
        </exec>

        <echo>Tweaking image look...</echo>
        <!-- Copy the background, the volume icon and DS_Store files -->
        <mkdir dir="${mntvol}/.background" />

        <copy file="${resources.dir}/images/installer-background.png"
              tofile="${mntvol}/.background/background.png"
              verbose="yes"
              overwrite="true" />
        <copy file="${resources.dir}/images/my-volume-icon.icns"
              tofile="${mntvol}/.VolumeIcon.icns"
              verbose="yes"
              overwrite="true" />
        <copy file="${resources.dir}/My_DS_Store" tofile="${mntvol}/.DS_Store" verbose="yes" overwrite="true" />

        <!-- Indicate that we want a custom icon -->
        <exec executable="/Developer/Tools/SetFile" os="Mac OS X" failonerror="true">
            <arg value="-a" />
            <arg value="C" />
            <arg value="${mntvol}" />
        </exec>

        <!-- Add a symbolic link to the Applications directory -->
        <symlink link="${mntvol}" resource="/Applications" />

        <!-- Get the dmg to auto-open on mounting -->
        <echo>Making image auto-open...</echo>
        <exec executable="bless" os="Mac OS X" failonerror="true">
            <arg value="-folder" />
            <arg value="${mntvol}" />
            <arg value="-openfolder" />
            <arg value="${mntvol}" />
        </exec>

        <!-- Detach the temporary image -->
        <exec executable="hdiutil" os="Mac OS X" failonerror="true">
            <arg value="detach" />
            <arg value="${mntvol}" />
        </exec>

        <!-- Compress it to a new image -->
        <echo>Compressing image...</echo>
        <exec executable="hdiutil" os="Mac OS X" failonerror="true">
            <arg value="convert" />
            <arg value="${tmpdmg}" />
            <arg value="-format" />
            <arg value="UDZO" />
            <arg value="-ov" />
            <arg value="-o" />
            <arg value="${dmgname}" />
        </exec>

        <!-- Set custom folder icon (requires locally available tool)-->
        <exec executable="${resources.dir}/tools/seticon" os="Mac OS X" failonerror="false">
            <arg value="-d" />
            <arg value="${resources.dir}/images/my-volume-icon.icns" />
            <arg value="${dmgname}" />
        </exec>

        <!-- Delete the temporary image -->
        <!-- Comment out the following line to keep temp image around to
             customize the background, layout, etc. and copy the .DS_Store
             file to My_DS_Store. -->
        <delete file="${tmpdmg}" quiet="yes" failonerror="false" />