I need to do a simple addition in NANT program like 1 + 1 =2. I am finding it difficult as every variable is taken as string by default in NANT. I have also tried using int::parse but it did not work.
Regards
Sarathy
Perhaps you can use convert::to-int. There's also an operator overview here.
I also found two examples that perhaps help to understand overall usage (example 1, example 2):
From example 1:
<if test=“${int::parse(UnitTestsResult) != 0}“>
<fail message=“Atleast one unit test failed!“/>
</if>
From example 2:
<target name="repeat">
<property name="var1" value="0" overwrite="false" />
<echo message="${var1}" />
<property name="var1" value="${convert::to-int(var1) + 1)" />
<call target="repeat" if="${convert::to-int(var1) < 10}" />
</target>
<property name="a" value="1"/>
<echo message="${int::parse(a) + 2}" />
Gives:
[echo] 3
Related
At the moment I'm calling findstr and storing the output in a property to check afterwards - I'm sure there must be a better solution.
<exec program="findstr.exe"
workingdir="${workspaceDir}"
commandline='/i /c:"someText" ${fileName}'
failonerror="false"
output="${coverageExcludeLog}"
resultproperty="foundFile"
/>
Is this really the best way of doing this?
<loadfile file="${fileName}" property="MyFileContents" />
<property name="Mystring" value="someText" />
<property name="search.file" value="${string::contains(MyFileContents, Mystring)}" />
<if test="${bool::parse(search.file)}" > <!-- true or false-->
<echo message="Found the string ${Mystring} in the file ${fileName}" />
</if>
I'm encountering the following:
<target name="test_something">
<if>
<equals arg1="1" arg2="1" />
<then>
<input propertyname="confirm_cleanup" defaultValue="y" validArgs="y,n" promptChar="?">Hello</input>
</then>
</if>
</target>
When I run the task, the output is: HelloHelloHelloHello(y,n) [y]?
Any ideas why it is echoed 4 times?
Cheers
Here is my Script:
<?xml version="1.0"?>
<project name="createAndPopulateDB" default="deploy">
<property name="sql.connstring" value="Provider=SQLOLEDB;Server=G-PC\sqlexpress;Integrated Security=SSPI" />
<property name="createDB" value="BuildTestDatabase.sql" />
<property name="populateDB" value="CreateTables.sql"/>
<target name="deploy">
<echo message="* Connecting to ${sql.connstring}"/>
<foreach item="File" property="sql.script">
<in>
<items>
<include name="${createDB}" />
<include name="${populateDB}" />
</items>
</in>
<do>
<echo message="* Executing ${path::get-file-name(sql.script)}"/>
<sql connstring="${sql.connstring}" delimiter="go" delimstyle="Line" batch="false" source="${sql.script}"/>
</do>
</foreach>
</target>
</project>
The NAnt script is supposed to call two tsql programs. The first tsql is designed to drop a database if it is present, and if it isn't, create it. The second checks to see if a table is present, and if so, delete it. Similarly if it isn't, it populates the created database with a simple table.
My question is why does it run the populateDB script first?
I found that the best way to determine the order in which the tsql programs are run is through a depends attribute attached to separate targets. This will run them in a predetermined order and is extremely easy to follow logically if the NAnt script is a part of a repository.
What I am trying to do, is to find a file with NAnt. This file could by anywhere in a directory structure of a given folder.
I tried to this with the NAnt-foreach task (this works) but I am not quite convinced of that:
<target name="find-file">
<fail message="Property param.dir must be set" unless="${property::exists('param.dir')}" />
<fail message="Property param.pattern must be set" unless="${property::exists('param.pattern')}" />
<property name="return.file" value="" />
<foreach item="File" property="iterator.file">
<in>
<items>
<include name="${param.dir}\**\${param.pattern}" />
</items>
</in>
<do>
<property name="return.file" value="${iterator.file}" if="${string::get-length(return.file) == 0}" />
</do>
</foreach>
</target>
Is there anybody aware of a better approach? If not how can I accomplish to exit the foreach-loop after the first element is found?
This nantcontrib function will put the matching filenames into a delimited string..
If you know that only one matching file will exist then it may get you what you want. If there are several then you could use the nant substring function to just get the first match by taking the substring up to the first delimiter.
The following nant script:
<?xml version="1.0" encoding="utf-8"?>
<project default="find-file2">
<property name="NantContrib.dir" value="C:\Program Files\nantcontrib-0.85\" readonly="true" />
<target name="LoadNantContrib">
<loadtasks assembly="${NantContrib.dir}bin\NAnt.Contrib.Tasks.dll" />
</target>
<target name="find-file2" depends="LoadNantContrib">
<fileset id="find.set">
<include name="${param.dir}\**\${param.pattern}" />
</fileset>
<property name="return.file" value="${fileset::to-string('find.set', ' | ')}" />
<echo message="return.file=${return.file}"/>
<echo message="Found ${fileset::get-file-count('find.set')} files"/>
</target>
</project>
...and the following folder structure:
\---folderroot
+---folder1
| dontfindme.txt
| findme.txt
|
+---folder2
| dontfindme.txt
|
\---folderempty
...works as expected. Searching for findme.txt finds one file. Searching for dontfindme.txt finds two files. Searching for *.txt finds three files.
Example call:
nant -D:param.dir=folderroot -D:param.pattern=findme.txt
Example output:
find-file2:
[echo] return.file=C:\Documents and Settings\rbaker\My Documents\nantfindfile\folderroot\folder1\findme.txt
[echo] Found 1 files
BUILD SUCCEEDED
Summary:
How do I expand a property with value "download\${bulidmode}\project\setup.msi" to "download\Debug\project\setup.msi" if the property buildmode contained debug so I can use it as the file="" part of < copy >
Detail:
I have a bit of a requirement to be able to expand properties within a string in nant.
For example I have a target that is copying file A to B. A and B both come from a simple two field CSV file which I'm iterating through using
<foreach item="Line" in="filelist.csv" delim="," property="source.file,target.file">
<property name="sourcefile" value="${path::combine(source.dir,source)}" />
<property name="targetfile" value="${path::combine(download.dir,destination)}" />
<echo message="Copy ${sourcefile} to ${targetfile}" />
<copy file="${sourcefile" tofile="${destination}" />
</foreach>
and the filelist.csv will be
build\manifest.xml
solutiondirectory\setup-proj-directory\Release\setupproj.msi,ProductA\ProductA.msi
solutiondirectory\another-proj-dir\Release\setupproj.msi,ProductB\ProductB.msi
(The reason we split these out is that we write multi-tiered applications and deploy by MSI to each tier - so one product has multiple msi's all built with the same version numbers)
Anyway - I want to change this to that I no longer have "Release" in the filelist.csv file but something like ${build.mode}. I would wrap the above code with a
<foreach item="String" in="Release,Debug" delim="," property="build.mode">
....as above
</foreach>
and the property embedded within the string in the file gets expanded.
I've been beating my head against a brick wall for a few hours, but just can't figure it out.
Thanks
It is possible with a custom function :
<?xml version="1.0"?>
<project>
<script language="C#" prefix="vbfox" >
<code>
<![CDATA[
[Function("expand")]
public string ExpandString(string str)
{
return Project.Properties.ExpandProperties(str, Location.UnknownLocation);
}
]]>
</code>
</script>
<property name="hello" value="{path::combine('_hello_', '_world_')}" />
<property name="hello" value="${'$' + hello}" />
<echo message="${hello}" />
<echo message="${vbfox::expand(hello)}" />
</project>