Multiple fileset and filelist comparisons

[Lancelot.MEURILLON]

Hi all,

How would you  do to implement this with ANT ?

1- In a project A, there are 2 file trees with same directories and files but 
not at same revision
DirLocal
--subdir1
-----file1 (version 1.2)
-----file2 (version 2.3)
--subdir2
-----file3 (version 3.0)

DirRemote
--subdir1
-----file1 (version 1.2)
-----file2 (version 2.1)
--subdir2
-----file3 (version 3.0)

I need to compare those 2 file trees to get desynchronized files from 
'DirRemote' (in order to synchronize them with the latest revision further).
I can do this easily with 'different' selector on 'targetdir' DirRemote :
<fileset dir="${DirLocal}" includes="**/*.xml" id="desynchronizedMetadata">
    <different targetdir="${DirRemote}" ignoreFileTimes="true"/>
</fileset>

But this list of desynchronised files will be used by another project B, that's 
why I convert the fileset 'desynchronizedMetadata into a fileList using a 
pathconvert and echo file :
<pathconvert pathsep="${line.separator}" property="desynch.files" 
refid="desynchronizedMetadata">
    <regexpmapper from="^${DirLocal}/(.*)$" to="&lt;file name=&quot;\1&quot;/>" 
handledirsep="true"/>
</pathconvert>
 <echo file="desynchronizedMetadata.xml">&lt;project 
name=&quot;DesynchronizedMetadata&quot;>${line.separator}&lt;filelist 
id=&quot;desynch.files&quot; dir=&quot;${DirLocal}&quot;>
 ${desynch.files}
 &lt;/filelist>${line.separator}&lt;/project></echo>


2- In the project B, I import this fileList and I need to clean it against 
another files tree DirMostUpToDate (same directories and files), but in another 
way.
If a file is present both in fileList and in the file tree then this file will 
be removed from the fileList. Here the test to know if the file is present on 
the 2 sides is based on the relative path, not on the content (relative path : 
subdir1/file1)
To do this comparison (without success) I tried to:
- option 1: compare 2 resources : one from the fileList and the other from the 
fileset 'DirMostUpToDate' and then to use 'intersect' :

<import file="${projectA}/desynchronizedMetadata.xml" optional="true"/>
<resources id="A" >
    <filelist refid="desynch.files"/>
</resources>
  
<fileset dir="${DirMostUpToDate }" includes="**/*xml" id="metadata">
<resources id="B">
    <fileset refid="metadata"/>
</resources>
<intersect id="intersect"><resources refid="A"/><resources 
refid="B"/></intersect>
But actually it doesn't work, it returns nothing (if I do the same with using 
'difference', it returns list of all files like 'union')

- option 2: then I tried to convert the fileList into a fileset to be able to 
use the fileset comparison like in project A but it looks like very crappy ! I 
converted the fileList into a comma delimited list of files property and then 
create a fileset using this property in 'includes' attribute but this list 
could be quiet huge so I'm not sure this is the efficient way to do this.

- option 3: I could loop on the fileList and check the availability of the 
current file in dir DirMostUpToDate but again it seems to be inefficient in 
case of huge fileList

All suggestions are welcome !
Many thanks
Lancelot
P.S : one thing could not be debated: the 2 projects A et B are completely 
separated. Project B cannot compare DirLocal and DirRemote and must use a 
fileList (or something else ?) present in the file system.






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