Question

我正在尝试用ant构建以下内容，但老实说，不知道如何最好地继续：

根据设定的标准获取文件名（最新的日期和正则表达式字符串比较）并将文件名分开（文件以我用来检查有效性的数字开头）。
在不同的目录中获取文件夹名称并分开以获取编号如果文件验证号码大于文件夹号，则复制文件。

到目前为止，我可以将正确的文件复制到临时目录，但我需要帮助比较文件名和文件夹名称的部分内容。

Answer 1

使用它：

<project name="test1" basedir="." default="check_if_new_sdk_needed">

    <property file="../local.properties" />

    <target name="check_if_new_sdk_needed" depends="check_local_sdk, compute_remote_sdk_properties">
        <echo message="Need to grab SDK: ${updateNeeded}" />
        <antcall target="process_sdk" />
    </target>

    <target name="check_local_sdk" depends="local_sdk_found, local_sdk_not_found">
    </target>

    <target name="local_sdk_found" depends="compute_local_sdk_properties" if="local.sdk.found">
        <echo message="Local SDK found" />
        <script language="javascript"><![CDATA[
          var localVersion = parseInt(project.getProperty('local.sdk.version.number'));
          var remoteVersion = parseInt(project.getProperty('remote.sdk.version.number'));
          project.setProperty('updateNeeded', remoteVersion > localVersion);
      ]]></script>
    </target>

    <target name="local_sdk_not_found" depends="compute_local_sdk_properties" unless="local.sdk.found">
        <property name="updateNeeded" value="true" />
        <echo message="Need to grab SDK" />
    </target>

    <target name="compute_local_sdk_properties">
        <path id="local_sdk_folder_name">
            <dirset dir="${local.sdk.dir}">
                <include name="*"/>
            </dirset>
        </path>
        <property name="local.sdk.folder.name" refid="local_sdk_folder_name"/>
        <pathconvert property="local.sdk.version.number">
            <path path="${local.sdk.folder.name}" />
            <chainedmapper>
                <flattenmapper />
                <mapper type="regexp" from="(.*?)-.*" to="\1" />
            </chainedmapper>
        </pathconvert>
        <condition property="local.sdk.found">
            <length string="${local.sdk.version.number}" trim="true" when="greater"
                length="0" />
        </condition>
    </target>

    <target name="compute_remote_sdk_properties">
        <echo message="renaming ${sdk_folder_name} to ${remote.sdk.file.name}"/>
        <pathconvert property="remote.sdk.version.number">
            <path path="${remote.sdk.file.name}" />
            <chainedmapper>
                <flattenmapper />
                <mapper type="regexp" from="(.*?)-.*" to="\1" />
            </chainedmapper>
        </pathconvert>
    </target>
</project>

如何在动态定位文件上进行多个操作？

1 个答案: