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Posted to user@ant.apache.org by Martin Gainty <mg...@hotmail.com> on 2006/02/15 16:01:48 UTC
test for directory existence
Good Morning All-
How do you test for the existence of a folder before del or mkdir operation
Has something to with <property ???
Thanks!
Martin Gainty
(mobile) 603-438-5053
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RE: test for directory existence
Posted by bill/wilandra <bi...@wilandra.com>.
IMHO. I don't think it is a matter of whether the second mkdir "completed"
or not here. As Jan said, mkdir has the responsibility to make sure the
directory exists when it ends. In the case of the first mkdir, the directory
had to be created so mkdir said it did it. In the case of the second mkdir,
the directory was already there so mkdir had nothing to do so it said
nothing. In both cases mkdir "completed" its responsibility successfully.
This is essentially what I would expect to see. It would probably be better
if the -d output said that the directory was already there and the create
was skipped but I would not want that much info in the standard message.
Bill
-----Original Message-----
From: Martin Gainty [mailto:mgainty@hotmail.com]
Sent: Thursday, February 16, 2006 6:23 AM
To: Ant Users List
Subject: Re: test for directory existence
If I understand correctly The objective (in this case the directory) was
created by the first mkdir task but the 2nd mkdir task did not complete its
task as the condition that the folder had already existed even though the
2nd mkdir task would be doing the same thing as the first task essentially
the 2nd mkdir did not complete?
Is this correct ?
Diky/Vielen Danke,
Martin-
----- Original Message -----
From: "Ondřej Světlík" <on...@svetlik.info>
To: "Ant Users List" <us...@ant.apache.org>
Sent: Thursday, February 16, 2006 8:31 AM
Subject: Re: test for directory existence
>> Stefan-
>> I guess Im confused
>> why doesnt mkdir show 2 success messages instead of the just the first
>> success message?
>> Martin-
>> ----- Original Message -----
>> From: "Stefan Bodewig" <bo...@apache.org>
>> To: <us...@ant.apache.org>
>> Sent: Thursday, February 16, 2006 12:18 AM
>> Subject: Re: test for directory existence
>>
>>
>>> On Wed, 15 Feb 2006, Martin Gainty <mg...@hotmail.com> wrote:
>>>
>>>> *Not sure about delete*
>>>
>>> it will fail if you tell it to delete something that isn't there -
>>> unless you set the quite attribute to true in which case it will
>>> simply do nothing.
>>>
>>>> but I know mkdir will fail if the folder is already in place
>>>
>>> No it won't.
>>>
>>> ,----
>>> | <project>
>>> | <mkdir dir="foo"/>
>>> | <mkdir dir="foo"/>
>>> | </project>
>>> `----
>>>
>>> leads to
>>>
>>> ,----
>>> | [mkdir] Created dir: /tmp/foo
>>> |
>>> | BUILD SUCCESSFUL
>>> | Total time: 1 second
>>> `----
>>>
>>> The task doesn't even issue a warning message.
>>>
>>> Stefan
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
>>> For additional commands, e-mail: user-help@ant.apache.org
>>>
>>>
>>
>
> <mkdir> as well as <delete> prints a message only in case it creates or
> deletes something. When there's nothing to create (the directory already
> exists) or delete (there's no such directory) it prints no message. You
> may try do run ant with parameter -d to see more output.
>
> Best regards
>
> Ondrej Svetlik
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
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>
>
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Re: test for directory existence
Posted by Martin Gainty <mg...@hotmail.com>.
If I understand correctly The objective (in this case the directory) was created by the first mkdir task
but the 2nd mkdir task did not complete its task as the condition that the folder had already existed
even though the 2nd mkdir task would be doing the same thing as the first task essentially the 2nd mkdir did not complete?
Is this correct ?
Diky/Vielen Danke,
Martin-
----- Original Message -----
From: "Ondřej Světlík" <on...@svetlik.info>
To: "Ant Users List" <us...@ant.apache.org>
Sent: Thursday, February 16, 2006 8:31 AM
Subject: Re: test for directory existence
>> Stefan-
>> I guess Im confused
>> why doesnt mkdir show 2 success messages instead of the just the first
>> success message?
>> Martin-
>> ----- Original Message -----
>> From: "Stefan Bodewig" <bo...@apache.org>
>> To: <us...@ant.apache.org>
>> Sent: Thursday, February 16, 2006 12:18 AM
>> Subject: Re: test for directory existence
>>
>>
>>> On Wed, 15 Feb 2006, Martin Gainty <mg...@hotmail.com> wrote:
>>>
>>>> *Not sure about delete*
>>>
>>> it will fail if you tell it to delete something that isn't there -
>>> unless you set the quite attribute to true in which case it will
>>> simply do nothing.
>>>
>>>> but I know mkdir will fail if the folder is already in place
>>>
>>> No it won't.
>>>
>>> ,----
>>> | <project>
>>> | <mkdir dir="foo"/>
>>> | <mkdir dir="foo"/>
>>> | </project>
>>> `----
>>>
>>> leads to
>>>
>>> ,----
>>> | [mkdir] Created dir: /tmp/foo
>>> |
>>> | BUILD SUCCESSFUL
>>> | Total time: 1 second
>>> `----
>>>
>>> The task doesn't even issue a warning message.
>>>
>>> Stefan
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
>>> For additional commands, e-mail: user-help@ant.apache.org
>>>
>>>
>>
>
> <mkdir> as well as <delete> prints a message only in case it creates or
> deletes something. When there's nothing to create (the directory already
> exists) or delete (there's no such directory) it prints no message. You
> may try do run ant with parameter -d to see more output.
>
> Best regards
>
> Ondrej Svetlik
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
> For additional commands, e-mail: user-help@ant.apache.org
>
>
Re: test for directory existence
Posted by Ondřej Světlík <on...@svetlik.info>.
> Stefan-
> I guess Im confused
> why doesnt mkdir show 2 success messages instead of the just the first
> success message?
> Martin-
> ----- Original Message -----
> From: "Stefan Bodewig" <bo...@apache.org>
> To: <us...@ant.apache.org>
> Sent: Thursday, February 16, 2006 12:18 AM
> Subject: Re: test for directory existence
>
>
>> On Wed, 15 Feb 2006, Martin Gainty <mg...@hotmail.com> wrote:
>>
>>> *Not sure about delete*
>>
>> it will fail if you tell it to delete something that isn't there -
>> unless you set the quite attribute to true in which case it will
>> simply do nothing.
>>
>>> but I know mkdir will fail if the folder is already in place
>>
>> No it won't.
>>
>> ,----
>> | <project>
>> | <mkdir dir="foo"/>
>> | <mkdir dir="foo"/>
>> | </project>
>> `----
>>
>> leads to
>>
>> ,----
>> | [mkdir] Created dir: /tmp/foo
>> |
>> | BUILD SUCCESSFUL
>> | Total time: 1 second
>> `----
>>
>> The task doesn't even issue a warning message.
>>
>> Stefan
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
>> For additional commands, e-mail: user-help@ant.apache.org
>>
>>
>
<mkdir> as well as <delete> prints a message only in case it creates or
deletes something. When there's nothing to create (the directory already
exists) or delete (there's no such directory) it prints no message. You
may try do run ant with parameter -d to see more output.
Best regards
Ondrej Svetlik
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Re: test for directory existence
Posted by Stefan Bodewig <bo...@apache.org>.
On Thu, 16 Feb 2006, Martin Gainty <mg...@hotmail.com> wrote:
> I guess Im confused why doesnt mkdir show 2 success messages instead
> of the just the first success message?
because the second task doesn't do anything. It does print something
like "not creating foo since it already exists" in verbose mode.
Stefan
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Re: test for directory existence
Posted by Martin Gainty <mg...@hotmail.com>.
Stefan-
I guess Im confused
why doesnt mkdir show 2 success messages instead of the just the first success message?
Martin-
----- Original Message -----
From: "Stefan Bodewig" <bo...@apache.org>
To: <us...@ant.apache.org>
Sent: Thursday, February 16, 2006 12:18 AM
Subject: Re: test for directory existence
> On Wed, 15 Feb 2006, Martin Gainty <mg...@hotmail.com> wrote:
>
>> *Not sure about delete*
>
> it will fail if you tell it to delete something that isn't there -
> unless you set the quite attribute to true in which case it will
> simply do nothing.
>
>> but I know mkdir will fail if the folder is already in place
>
> No it won't.
>
> ,----
> | <project>
> | <mkdir dir="foo"/>
> | <mkdir dir="foo"/>
> | </project>
> `----
>
> leads to
>
> ,----
> | [mkdir] Created dir: /tmp/foo
> |
> | BUILD SUCCESSFUL
> | Total time: 1 second
> `----
>
> The task doesn't even issue a warning message.
>
> Stefan
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
> For additional commands, e-mail: user-help@ant.apache.org
>
>
Re: test for directory existence
Posted by Stefan Bodewig <bo...@apache.org>.
On Wed, 15 Feb 2006, Martin Gainty <mg...@hotmail.com> wrote:
> *Not sure about delete*
it will fail if you tell it to delete something that isn't there -
unless you set the quite attribute to true in which case it will
simply do nothing.
> but I know mkdir will fail if the folder is already in place
No it won't.
,----
| <project>
| <mkdir dir="foo"/>
| <mkdir dir="foo"/>
| </project>
`----
leads to
,----
| [mkdir] Created dir: /tmp/foo
|
| BUILD SUCCESSFUL
| Total time: 1 second
`----
The task doesn't even issue a warning message.
Stefan
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Re: test for directory existence
Posted by Ninju Bohra <ni...@yahoo.com>.
You can use the <available property="direxists" file="path to directory" type="dir"> to set a property based upon the existance of a directory...then create a target whose job is to delete the directory and use a if="direxists" attribute to control the whether the target really executes (or merely no-ops) based upon the property being set.
Good luck,
Ninju
----- Original Message ----
From: Martin Gainty <mg...@hotmail.com>
To: Ant Users List <us...@ant.apache.org>
Sent: Wednesday, February 15, 2006 9:38:45 AM
Subject: Re: test for directory existence
*Not sure about delete*
but I know
mkdir will fail if the folder is already in place
Thus the reason for checking the folder existence before mkdir operation
díky!
Martin-
----- Original Message -----
From: "Ondřej Světlík" <on...@svetlik.info>
To: "Ant Users List" <us...@ant.apache.org>
Sent: Wednesday, February 15, 2006 10:31 AM
Subject: Re: test for directory existence
>> Good Morning All-
>>
>> How do you test for the existence of a folder before del or mkdir
>> operation
>> Has something to with <property ???
>>
>> Thanks!
>>
>> Martin Gainty
>>
>> (mobile) 603-438-5053
>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
>> For additional commands, e-mail: user-help@ant.apache.org
>>
>
> Hello,
>
> why do you want to check for it's existence? Both tasks (<delete> and
> <mkdir>) can handle non-existing respectively existing directories. See
> this example:
>
>
> <project name="delete" default="all">
>
> <target name="all">
> <mkdir dir="dir/dir2" />
> <mkdir dir="dir/dir2" />
> <delete dir="dir" />
> <delete dir="dir" />
> </target>
>
> </project>
>
> It will successfully pass. The second <mkdir> won't do anything with the
> original content of the folder.
>
> Best regards
>
> Ondrej Svetlik
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
> For additional commands, e-mail: user-help@ant.apache.org
>
>
Re: test for directory existence
Posted by Martin Gainty <mg...@hotmail.com>.
*Not sure about delete*
but I know
mkdir will fail if the folder is already in place
Thus the reason for checking the folder existence before mkdir operation
díky!
Martin-
----- Original Message -----
From: "Ondřej Světlík" <on...@svetlik.info>
To: "Ant Users List" <us...@ant.apache.org>
Sent: Wednesday, February 15, 2006 10:31 AM
Subject: Re: test for directory existence
>> Good Morning All-
>>
>> How do you test for the existence of a folder before del or mkdir
>> operation
>> Has something to with <property ???
>>
>> Thanks!
>>
>> Martin Gainty
>>
>> (mobile) 603-438-5053
>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
>> For additional commands, e-mail: user-help@ant.apache.org
>>
>
> Hello,
>
> why do you want to check for it's existence? Both tasks (<delete> and
> <mkdir>) can handle non-existing respectively existing directories. See
> this example:
>
>
> <project name="delete" default="all">
>
> <target name="all">
> <mkdir dir="dir/dir2" />
> <mkdir dir="dir/dir2" />
> <delete dir="dir" />
> <delete dir="dir" />
> </target>
>
> </project>
>
> It will successfully pass. The second <mkdir> won't do anything with the
> original content of the folder.
>
> Best regards
>
> Ondrej Svetlik
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
> For additional commands, e-mail: user-help@ant.apache.org
>
>
Re: test for directory existence
Posted by Ondřej Světlík <on...@svetlik.info>.
> Good Morning All-
>
> How do you test for the existence of a folder before del or mkdir
> operation
> Has something to with <property ???
>
> Thanks!
>
> Martin Gainty
>
> (mobile) 603-438-5053
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
> For additional commands, e-mail: user-help@ant.apache.org
>
Hello,
why do you want to check for it's existence? Both tasks (<delete> and
<mkdir>) can handle non-existing respectively existing directories. See
this example:
<project name="delete" default="all">
<target name="all">
<mkdir dir="dir/dir2" />
<mkdir dir="dir/dir2" />
<delete dir="dir" />
<delete dir="dir" />
</target>
</project>
It will successfully pass. The second <mkdir> won't do anything with the
original content of the folder.
Best regards
Ondrej Svetlik
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Re: test for directory existence
Posted by Martin Gainty <mg...@hotmail.com>.
<available tag works>
Thanks Rich!
M-
----- Original Message -----
From: "Rich Wagner" <ri...@savaje.com>
To: "Ant Users List" <us...@ant.apache.org>; <mg...@hotmail.com>
Sent: Wednesday, February 15, 2006 11:14 AM
Subject: Re: test for directory existence
> These prompt for a (relative or absolute) path, and conditionally set a
> property based on directory existence, and echo a message that reports
> whether there's a directory at the given path:
>
> <target name="ask_for_path_and_echo_existence"
> depends="exists,does_not_exist"/>
>
> <target name="ask_for_dir">
> <input message="Enter path:" addproperty="PATH"/>
> <property name="ABSOLUTE_PATH" location="${PATH}"/>
> <available file="${ABSOLUTE_PATH}" type="dir"
> property="DIR.present"/>
> </target>
>
> <target name="exists" depends="ask_for_dir" if="DIR.present">
> <echo message="Directory exists: ${ABSOLUTE_PATH}"/>
> </target>
>
> <target name="does_not_exist" depends="ask_for_dir"
> unless="DIR.present">
> <echo message="Directory does NOT exist, or not a directory:
> ${ABSOLUTE_PATH}"/>
> </target>
>
>
> Hope this helps,
> Rich Wagner
>
>
>
> Martin Gainty wrote:
>
>> Good Morning All-
>>
>> How do you test for the existence of a folder before del or mkdir
>> operation
>> Has something to with <property ???
>>
>> Thanks!
>>
>> Martin Gainty
>>
>> (mobile) 603-438-5053
>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
>> For additional commands, e-mail: user-help@ant.apache.org
>>
>>
>
>
Re: test for directory existence
Posted by Rich Wagner <ri...@savaje.com>.
These prompt for a (relative or absolute) path, and conditionally set a
property based on directory existence, and echo a message that reports
whether there's a directory at the given path:
<target name="ask_for_path_and_echo_existence"
depends="exists,does_not_exist"/>
<target name="ask_for_dir">
<input message="Enter path:" addproperty="PATH"/>
<property name="ABSOLUTE_PATH" location="${PATH}"/>
<available file="${ABSOLUTE_PATH}" type="dir"
property="DIR.present"/>
</target>
<target name="exists" depends="ask_for_dir" if="DIR.present">
<echo message="Directory exists: ${ABSOLUTE_PATH}"/>
</target>
<target name="does_not_exist" depends="ask_for_dir"
unless="DIR.present">
<echo message="Directory does NOT exist, or not a directory:
${ABSOLUTE_PATH}"/>
</target>
Hope this helps,
Rich Wagner
Martin Gainty wrote:
> Good Morning All-
>
> How do you test for the existence of a folder before del or mkdir
> operation
> Has something to with <property ???
>
> Thanks!
>
> Martin Gainty
>
> (mobile) 603-438-5053
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
> For additional commands, e-mail: user-help@ant.apache.org
>
>
RE: Passing sysproperties from a file
Posted by La...@ubs.com.
Thanks for the replies,
I solved this a while ago using, as mentioned, a combination of
propertyset, loading property file with prefix and a glob mapper
<property name="extra.properties.prefix" value="APPSPECIFIC" /> <!--
the prefix -->
<property file="${EXSET.extra.properties.file.name}"
prefix="${app.specific.properties.prefix}" />
<propertyset id="app.specific.sysproperties">
<propertyref prefix="${extra.properties.prefix}" />
<mapper type="glob" from="${extra.properties.prefix}*" to="*" />
</propertyset>
<!-- in the Java target -->
<syspropertyset refid="app.specific.sysproperties" />
Not as clean as I would like, still think it might be nice to be able to
have <sysproperty file="file.properties"/> include all props in
file.properties as Java properties...
Thanks,
Laurie
-----Original Message-----
From: Dominique Devienne [mailto:ddevienne@gmail.com]
Sent: 18 March 2006 03:46
To: Ant Users List
Subject: Re: Passing sysproperties from a file
> I'm trying to include a set of properties, taken from a file, in the
> Java task as system properties.
>
> I have been fiddling around with various combinations of <property
> file="file.props" id="jeff" /> With <sysproperty refid="jeff" /> in
> the Java task, but with no joy.
>
> Anybody know how to achieve this? I'm sure it must be possible.
Have you looked into <propertyset>? --DD
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Re: Passing sysproperties from a file
Posted by Dominique Devienne <dd...@gmail.com>.
> I'm trying to include a set of properties, taken from a file, in the
> Java task as system properties.
>
> I have been fiddling around with various combinations of <property
> file="file.props" id="jeff" /> With <sysproperty refid="jeff" /> in the
> Java task, but with no joy.
>
> Anybody know how to achieve this? I'm sure it must be possible.
Have you looked into <propertyset>? --DD
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Passing sysproperties from a file
Posted by La...@ubs.com.
Hi,
I'm trying to include a set of properties, taken from a file, in the
Java task as system properties.
I have been fiddling around with various combinations of <property
file="file.props" id="jeff" /> With <sysproperty refid="jeff" /> in the
Java task, but with no joy.
Anybody know how to achieve this? I'm sure it must be possible.
Thanks,
Laurie
Visit our website at http://www.ubs.com
This message contains confidential information and is intended only
for the individual named. If you are not the named addressee you
should not disseminate, distribute or copy this e-mail. Please
notify the sender immediately by e-mail if you have received this
e-mail by mistake and delete this e-mail from your system.
E-mail transmission cannot be guaranteed to be secure or error-free
as information could be intercepted, corrupted, lost, destroyed,
arrive late or incomplete, or contain viruses. The sender therefore
does not accept liability for any errors or omissions in the contents
of this message which arise as a result of e-mail transmission. If
verification is required please request a hard-copy version. This
message is provided for informational purposes and should not be
construed as a solicitation or offer to buy or sell any securities or
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Re: test for directory existence
Posted by "Ivan \"Rambius\" Ivanov" <ra...@yahoo.com>.
Hello,
<delete dir="..."/> and <mkdir dir="..."> tasks take
care of these details:
<project>
<delete dir="i_do_not_exist"/>
<mkdir dir="i_exist"/>
<mkdir dir="i_exist"/>
</project>
Here, we are trying to delete a non-existing
directory. Of course, <delete> deletes nothing but it
executes successfully. Next, with the second
invokation of <mkdir> we want to create a directory
that already exists and <mkdir> creates nothing but it
executes successfully.
Regarding your original question, you can use
<available> task:
<available file="i_do_not_exist" type="dir"
property="not.exists"/>
<available file="i_exist" type="dir"
property="exists"/>
<echo>$${exists} = ${exists}</echo>
<echo>$${not_exists} = ${not_exists}</echo>
Next, you can use if and unless attributes of <target>
in order to control the build flow based on the
existence of the directories.
Regards
Ivan
--- Martin Gainty <mg...@hotmail.com> wrote:
> Good Morning All-
>
> How do you test for the existence of a folder before
> del or mkdir operation
> Has something to with <property ???
>
> Thanks!
>
> Martin Gainty
>
> (mobile) 603-438-5053
>
>
>
>
---------------------------------------------------------------------
> To unsubscribe, e-mail:
> user-unsubscribe@ant.apache.org
> For additional commands, e-mail:
> user-help@ant.apache.org
>
>
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