Date: 2004-07-07T16:51:12
Editor: 68.229.240.25 <>
Wiki: Ant Wiki
Page: AntOddities
URL: http://wiki.apache.org/ant/AntOddities
/me looks confused
Change Log:
------------------------------------------------------------------------------
@@ -13,7 +13,7 @@
{{{<target name="compile-groovy-scripts">
<exec executable="groovy.bat">
- <arg value="C:/path/to/scripts/*.groovy"/>
+ <arg value="C:/path/to/scripts/*.groovy"/>
<arg line="-d C:/path/to/classes/destination"/>
</exec>
</target>}}}
@@ -40,19 +40,19 @@
CheckStyle - like many other programs - uses the
java.util.ResourceBundle.getBundle() method which returns the appropriate
bundle for the '''default''' Locale. So I will set the default Locale to the US
value. Before that I store the actual one (or the 'key') as property and
restore that after invoking CheckStyle. Because I need (simple) access to the
Java API, I write that inside <script> tasks:
-{{{ <script language="javascript"> <![CDATA[
- importClass(java.util.Locale);
- actualDefault = Locale.getDefault();
- project.setProperty("---actual-default-locale---", actualDefault);
- Locale.setDefault(Locale.US);
- ]]></script>
-
- <ant .../>
-
- <script language="javascript"> <![CDATA[
- importClass(java.util.Locale);
- actualDefault = project.getProperty("---actual-default-locale---");
- Locale.setDefault(new Locale(actualDefault));
+{{{ <script language="javascript"> <![CDATA[
+ importClass(java.util.Locale);
+ actualDefault = Locale.getDefault();
+ project.setProperty("---actual-default-locale---", actualDefault);
+ Locale.setDefault(Locale.US);
+ ]]></script>
+
+ <ant .../>
+
+ <script language="javascript"> <![CDATA[
+ importClass(java.util.Locale);
+ actualDefault = project.getProperty("---actual-default-locale---");
+ Locale.setDefault(new Locale(actualDefault));
]]></script> }}}
@@ -62,8 +62,8 @@
== Using your own classes inside <script> ==
When you use <script language="javascript"> you are using the Java API. Ok so
far. Itīs simple to use java.io.File for getting information about a particular
file or creating complex strings with java.util.StringBuffer. But there are two
problems:
- * How to import other (non java.*) classes, e.g. Antīs own classes?
- * How to import classes which are '''not''' on Antīs classpath?
+ * How to import other (non java.*) classes, e.g. Antīs own classes?
+ * How to import classes which are '''not''' on Antīs classpath?
=== How to import other (non java.*) classes, e.g. Antīs own classes? ===
@@ -71,9 +71,12 @@
{{{ importClass(Packages.org.apache.tools.ant.types.Path); }}}
+
+''I'm confused. I was told that Java (static typing, compiled to bytecodes,
etc.) is a totally different language than JavaScript (dynamic typing,
interpreted, etc.). Are we using Java for scripting here ? Or are we actually
using JavaScript ? Or both ?''
+
=== How to import classes which are '''not''' on Antīs classpath? ===
-Ok, now we can use Antīs classes and the whole javax.*-stuff. But if I need
some custom classes? For example I have to create a reverse sorted list of
files. Getting the list of files is no problem. Sorting can be done by
java.util.TreeSet. But I need a custom Comparator which does the specific
comparison. So I implement one and store it in ${basedir}/ext.
+Ok, now we can use Antīs classes and the whole javax.*-stuff. But if I need
some custom classes? For example I have to create a reverse sorted list of
files. Getting the list of files is no problem. Sorting can be done by
java.util.TreeSet. But I need a custom Comparator which does the specific
comparison. So I implement one and store it in ${basedir}/ext.
And now the trick: Antīs Project class provides methods for getting
classloader. And there is one which includes specified paths. So we
* get the ''ext'' directory
@@ -82,16 +85,16 @@
* load the class
* instantiate that
-{{{ <script language="javascript"> <![CDATA[
- importClass(java.util.TreeSet);
- importClass(Packages.org.apache.tools.ant.types.Path);
-
- loaderpath = new Path(project, project.getProperty("ext.dir"));
- classloader = project.createClassLoader(loaderpath);
- comparatorClass = classloader.loadClass("ReportDateComparator");
- comparator = comparatorClass.newInstance();
+{{{ <script language="javascript"> <![CDATA[
+ importClass(java.util.TreeSet);
+ importClass(Packages.org.apache.tools.ant.types.Path);
+
+ loaderpath = new Path(project, project.getProperty("ext.dir"));
+ classloader = project.createClassLoader(loaderpath);
+ comparatorClass = classloader.loadClass("ReportDateComparator");
+ comparator = comparatorClass.newInstance();
- list = new TreeSet(comparator);
+ list = new TreeSet(comparator);
]]></script> }}}
@@ -151,7 +154,7 @@
While downloading the Milestone 4 of Eclipse I got an idea: why should I
download all the files without knowing if there are corrupt? Ok, the following
scenario:
* define a list with all names of the files to be downloaded
* download the file and its MD5 check file
- * get the MD5 checksum for the downloaded file
+ * compute the MD5 checksum for the downloaded file
* compare that value with the one stored in the MD5-file
And for faster handling:
* donīt download files if there are already downloaded and valid
@@ -166,84 +169,84 @@
* ''proxy.port'': proxy settings
And the final buildfile is:
-{{{ <project default="main">
+{{{ <project default="main">
- <taskdef resource="net/sf/antcontrib/antcontrib.properties"/>
+ <taskdef resource="net/sf/antcontrib/antcontrib.properties"/>
- <property name="result.file"
value="check-downloads-results.properties"/>
- <property file="check-downloads.properties"/>
- <property file="${result.file}"/>
-
- <target name="main">
- <setproxy proxyHost="${proxy.host}" proxyPort="${proxy.port}"/>
- <foreach list="${file.list}" param="file" target="checkFile"/>
- </target>
-
- <target name="checkFile"
depends="check.download,check.md5-1,check.md5-2" if="file"/>
-
- <target name="check.init">
- <property name="zip.file" value="${file}"/>
- <property name="md5.file" value="${file}.md5"/>
- <condition property="md5-ok"><isset
property="${zip.file}.isValid"/></condition>
- <condition property="download-ok">
- <and>
- <available file="${dest.dir}/${zip.file}"/>
- <available file="${dest.dir}/${md5.file}"/>
- </and>
- </condition>
- </target>
-
- <target name="check.download" unless="download-ok"
depends="check.init">
- <echo>Download ${md5.file}</echo>
- <get src="${download.md5.dir}/${md5.file}"
dest="${dest.dir}/${md5.file}"/>
- <echo>Download ${zip.file}</echo>
- <get src="${download.zip.dir}/${zip.file}"
dest="${dest.dir}/${zip.file}"/>
- </target>
-
- <target name="check.md5-1" if="md5-ok" depends="check.init">
- <echo>${zip.file}: just processed</echo>
- </target>
-
- <target name="check.md5-2" unless="md5-ok" depends="check.init">
- <trycatch><try>
- <!-- what is the valid md5 value specified in the md5 file -->
- <loadfile srcFile="${md5.file}" property="md5.valid">
- <filterchain>
- <striplinebreaks/>
- <tokenfilter>
- <stringtokenizer/>
- <replaceregex pattern="${zip.file}"
replace=''''''/>
- </tokenfilter>
- <tokenfilter>
- <trim/>
- </tokenfilter>
- </filterchain>
- </loadfile>
- <!-- what is the actual md5 value -->
- <checksum file="${zip.file}" property="md5.actual"/>
- <!-- compare them -->
- <condition property="md5.isValid">
- <equals arg1="${md5.valid}" arg2="${md5.actual}"/>
- </condition>
- <property name="md5.isValid" value="false"/>
- <!-- print the result -->
- <if>
- <istrue value="${md5.isValid}"/>
- <then>
- <echo>${zip.file}: ok</echo>
- <echo file="${result.file}"
- append="true"
-
message="${zip.file}.isValid=true${line.separator}"/>
- </then>
- <else>
- <echo>${zip.file}: Wrong MD5 checksum !!!</echo>
- <echo>- expected: ${md5.valid}</echo>
- <echo>- actual : ${md5.actual}</echo>
- <move file="${zip.file}"
tofile="${zip.file}.wrong-checksum"/>
- </else>
- </if>
- </try><catch/></trycatch>
- </target>
+ <property name="result.file"
value="check-downloads-results.properties"/>
+ <property file="check-downloads.properties"/>
+ <property file="${result.file}"/>
+
+ <target name="main">
+ <setproxy proxyHost="${proxy.host}" proxyPort="${proxy.port}"/>
+ <foreach list="${file.list}" param="file" target="checkFile"/>
+ </target>
+
+ <target name="checkFile"
depends="check.download,check.md5-1,check.md5-2" if="file"/>
+
+ <target name="check.init">
+ <property name="zip.file" value="${file}"/>
+ <property name="md5.file" value="${file}.md5"/>
+ <condition property="md5-ok"><isset
property="${zip.file}.isValid"/></condition>
+ <condition property="download-ok">
+ <and>
+ <available file="${dest.dir}/${zip.file}"/>
+ <available file="${dest.dir}/${md5.file}"/>
+ </and>
+ </condition>
+ </target>
+
+ <target name="check.download" unless="download-ok"
depends="check.init">
+ <echo>Download ${md5.file}</echo>
+ <get src="${download.md5.dir}/${md5.file}"
dest="${dest.dir}/${md5.file}"/>
+ <echo>Download ${zip.file}</echo>
+ <get src="${download.zip.dir}/${zip.file}"
dest="${dest.dir}/${zip.file}"/>
+ </target>
+
+ <target name="check.md5-1" if="md5-ok" depends="check.init">
+ <echo>${zip.file}: just processed</echo>
+ </target>
+
+ <target name="check.md5-2" unless="md5-ok" depends="check.init">
+ <trycatch><try>
+ <!-- what is the valid md5 value specified in the md5 file -->
+ <loadfile srcFile="${md5.file}" property="md5.valid">
+ <filterchain>
+ <striplinebreaks/>
+ <tokenfilter>
+ <stringtokenizer/>
+ <replaceregex pattern="${zip.file}"
replace=''''''/>
+ </tokenfilter>
+ <tokenfilter>
+ <trim/>
+ </tokenfilter>
+ </filterchain>
+ </loadfile>
+ <!-- what is the actual md5 value -->
+ <checksum file="${zip.file}" property="md5.actual"/>
+ <!-- compare them -->
+ <condition property="md5.isValid">
+ <equals arg1="${md5.valid}" arg2="${md5.actual}"/>
+ </condition>
+ <property name="md5.isValid" value="false"/>
+ <!-- print the result -->
+ <if>
+ <istrue value="${md5.isValid}"/>
+ <then>
+ <echo>${zip.file}: ok</echo>
+ <echo file="${result.file}"
+ append="true"
+
message="${zip.file}.isValid=true${line.separator}"/>
+ </then>
+ <else>
+ <echo>${zip.file}: Wrong MD5 checksum !!!</echo>
+ <echo>- expected: ${md5.valid}</echo>
+ <echo>- actual : ${md5.actual}</echo>
+ <move file="${zip.file}"
tofile="${zip.file}.wrong-checksum"/>
+ </else>
+ </if>
+ </try><catch/></trycatch>
+ </target>
</project> }}}
I got very nice results when starting with -quiet mode.
@@ -252,11 +255,11 @@
== Windows XP exec task : use os="Windows XP" instead of "os="Windows NT"
despite docs ==
-using ant 1.6.1 with j2sdk1.4.2
+using ant 1.6.1 with j2sdk1.4.2
Doc incorrectly says you should use os="Windows NT" for the exec task to lauch
a batch file
-If you try to launch a batch file with 'exec' task,
+If you try to launch a batch file with 'exec' task,
you should try to use instead :
{{{
<exec dir="bat" executable="cmd" os="Windows XP" failonerror="true">
@@ -292,11 +295,11 @@
[exec] Executing 'cmd' with arguments:
[exec] '/c'
[exec] 'batchXP.bat'
- [exec]
+ [exec]
[exec] The ' characters around the executable and arguments are
[exec] not part of the command.
- [exec] F:\trucking\ant\bat>dir ..\ 1>dirXP.txt
+ [exec] F:\trucking\ant\bat>dir ..\ 1>dirXP.txt
[available] Found: dirXP.txt in F:\trucking\ant\bat
@@ -319,7 +322,7 @@
<target name="init">
<condition property="osIsXP">
- <equals arg1="${env.HOMEDRIVE}\WINDOWS"
+ <equals arg1="${env.HOMEDRIVE}\WINDOWS"
arg2="${env.windir}"/>
</condition>
</target>
@@ -364,15 +367,15 @@
public class HelloWorld {
public static void main(String arg[]){
-
+
System.out.println("HELLO WORLD");
}
-
+
}
}}}
-Maybe you will run a code beautyfier on that so youīll delete the empty lines
... But you can see that the expected code is generated. And the class file is
beautified :-)
+Maybe you will run a code beautyfier on that so youīll delete the empty lines
... But you can see that the expected code is generated. And the class file is
beautified :-)
Here the buildfile for the example. Place that in a project root directory and
the original java source in "src" subdirectory.
{{{
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