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Changes file without

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Valentin Ryckewaert

Changes file without

Hello everyone,

I'm trying to execute a script from a .st file on a image whose changes file isn't writable.

When i do this, I'm getting a bug with primSize... It looks like get size of the file need write access ?

The exception :

Primitive failed: primitive #primsize: in MultiByteFileStream

Does someone have an idea of the reason of this problem please?

Valentin

Mariano Martinez Peck

Re: Changes file without

There used to be a #discardChanges or #forgetChanges or some message like that that allowed one to discard .changes file. But I cannot seem to find that anymore in 5.0. Maybe it is #closeSourceFiles.

The reason could be becuase the do-it (same as executing a .st) are tracked in the changes file. Another possibility is to explicitly disable the announcers, hoping that the changes writing happens via announcements:

SystemAnnouncer uniqueInstance suspendAllWhile: [ self executeYourScript ]

Hope this helps.

On Tue, May 31, 2016 at 8:22 AM, Valentin Ryckewaert <[hidden email]> wrote:

Hello everyone,

I'm trying to execute a script from a .st file on a image whose changes file isn't writable.
When i do this, I'm getting a bug with primSize... It looks like get size of the file need write access ?
The exception :
Primitive failed: primitive #primsize: in MultiByteFileStream

Does someone have an idea of the reason of this problem please?

Valentin

Mariano
http://marianopeck.wordpress.com

stepharo

Re: Changes file without

In reply to this post by Valentin Ryckewaert

If you execute your script with an image with ui you should be able to
see the stack.

Le 31/5/16 à 12:22, Valentin Ryckewaert a écrit :

> Hello everyone,
>
> I'm trying to execute a script from a .st file on a image whose
> changes file isn't writable.
> When i do this, I'm getting a bug with primSize... It looks like get
> size of the file need write access ?
> The exception :
> Primitive failed: primitive #primsize: in MultiByteFileStream
>
> Does someone have an idea of the reason of this problem please?
>
> Valentin

stepharo

Re: Changes file without

In reply to this post by Mariano Martinez Peck

Thanks mariano

We are trying to find all the places that are writing to disc and others and we should be able to turn them on and off.

Stef

Le 31/5/16 à 14:29, Mariano Martinez Peck a écrit :

There used to be a #discardChanges or #forgetChanges or some message like that that allowed one to discard .changes file. But I cannot seem to find that anymore in 5.0. Maybe it is #closeSourceFiles.

The reason could be becuase the do-it (same as executing a .st) are tracked in the changes file. Another possibility is to explicitly disable the announcers, hoping that the changes writing happens via announcements:

SystemAnnouncer uniqueInstance suspendAllWhile: [ self executeYourScript ]

Hope this helps.

On Tue, May 31, 2016 at 8:22 AM, Valentin Ryckewaert <[hidden email]> wrote:

Hello everyone,

I'm trying to execute a script from a .st file on a image whose changes file isn't writable.

When i do this, I'm getting a bug with primSize... It looks like get size of the file need write access ?

The exception :

Primitive failed: primitive #primsize: in MultiByteFileStream

Does someone have an idea of the reason of this problem please?

Valentin

--

Mariano
http://marianopeck.wordpress.com

Sven Van Caekenberghe-2

Re: Changes file without

In reply to this post by Valentin Ryckewaert

I haven't tried it, but have a look at

PharoFilesOpener>>#unsetInformAboutReadOnlyChanges
"Make sure the user is *not* informed when the .changes file can not be written to."
shouldInformAboutReadOnlyChanges := false

> On 31 May 2016, at 13:22, Valentin Ryckewaert <[hidden email]> wrote:
>
> Hello everyone,
>
> I'm trying to execute a script from a .st file on a image whose changes file isn't writable.
> When i do this, I'm getting a bug with primSize... It looks like get size of the file need write access ?
> The exception :
> Primitive failed: primitive #primsize: in MultiByteFileStream
>
> Does someone have an idea of the reason of this problem please?
>
> Valentin

Valentin Ryckewaert

Re: Changes file without

In reply to this post by stepharo

Hello,

Here is a script to make the exception happend

Go where you want the folder to be created and copy paste this:

mkdir testPharo

cd testPharo

mkdir files

cd files

echo Transcript show:'test' >test.st

cd ..

mkdir curl

cd curl

curl get.pharo.org/50+vm | bash

cd ..

sudo chmod -R -w curl

curl/pharo-ui curl/Pharo.image -st ../files/test.st

Execute this to clean what the script did :

cd ..

sudo rm -r testPharo

Valentin