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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 49261] New: Copy task fails to overwrite readonly files even with overwrite="true"
Date Thu, 06 May 2010 22:04:40 GMT
https://issues.apache.org/bugzilla/show_bug.cgi?id=49261

           Summary: Copy task fails to overwrite readonly files even with
                    overwrite="true"
           Product: Ant
           Version: 1.8.0
          Platform: Macintosh
            Status: NEW
          Severity: regression
          Priority: P2
         Component: Core tasks
        AssignedTo: notifications@ant.apache.org
        ReportedBy: carl.quinn@gmail.com


The copy task in prior versions (I tried 1.7.0 & 1.7.1) allowed one to
overwrite a read-only file if overwrite="true" was set. Now it seems that in
1.8.0 that no longer works and results in an exception:


/private/tmp/build.xml:3: Failed to copy /private/tmp/source to
/private/tmp/dest due to java.io.FileNotFoundException /private/tmp/dest
(Permission denied)

My steps to reproduce are below.

$ whoami
cquinn

$ echo 'The quick brown fox jumped over the lazy dog.' > source

$ touch dest; chmod -w dest

$ ls -l source dest
-r--r--r--  1 cquinn  wheel   0 May  6 14:39 dest
-rw-r--r--  1 cquinn  wheel  46 May  6 14:35 source

$ cat build.xml 
<project default="bug">
   <target name="bug">
      <copy file="source" tofile="dest" overwrite="true"/>
   </target>
</project>

$ ant -version
Apache Ant version 1.8.0 compiled on February 1 2010

$ ant
Buildfile: /private/tmp/build.xml

bug:
     [copy] Copying 1 file to /private/tmp

BUILD FAILED
/private/tmp/build.xml:3: Failed to copy /private/tmp/source to
/private/tmp/dest due to java.io.FileNotFoundException /private/tmp/dest
(Permission denied)

$ ls -l source dest
ls: dest: No such file or directory
-rw-r--r--  1 cquinn  wheel  46 May  6 14:35 source

>> Note that it not only failed to copy, but it removed the file.
>> Now, put the dest file back and switch ants to show how it used to work:

$ touch dest; chmod -w dest

$ ant -version
Apache Ant version 1.7.1 compiled on June 27 2008

$ ant
Buildfile: build.xml

bug:
     [copy] Copying 1 file to /private/tmp

BUILD SUCCESSFUL
Total time: 0 seconds

$ ls -l source dest
-rw-r--r--  1 cquinn  wheel  46 May  6 14:57 dest
-rw-r--r--  1 cquinn  wheel  46 May  6 14:35 source

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