[squeak-dev] The Trunk: System-dtl.1062.mcz

David T. Lewis lewis at mail.msen.com
Mon May 6 22:44:01 UTC 2019


On Sun, May 05, 2019 at 08:01:08PM -0700, John Pfersich via Squeak-dev wrote:
> Is that #! or #!!

It is #! in the code. I think the diffs to the mailing list are probably
made with Smalltalk fileOut chunk format, in which ! is a special character
that needs to be escaped as !!.

Dave


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> > On May 5, 2019, at 19:55, commits at source.squeak.org wrote:
> > 
> > David T. Lewis uploaded a new version of System to project The Trunk:
> > http://source.squeak.org/trunk/System-dtl.1062.mcz
> > 
> > ==================== Summary ====================
> > 
> > Name: System-dtl.1062
> > Author: dtl
> > Time: 5 May 2019, 10:54:56.642077 pm
> > UUID: c527ef41-51fb-4e49-b00a-90a9a09a935d
> > Ancestors: System-cmm.1061
> > 
> > If CodeLoader is loading a script that begins with a Unix shebang line, then skip over line one of the script. This accomodates the case of an executable Unix shell script that starts a Squeak image, then feeds itself to Squeak as a start script. For example, an executable script file might contain this:
> > 
> > #!/usr/local/bin/squeak --
> > Transcript show: 'Hello, world'; cr.
> > 
> > =============== Diff against System-cmm.1061 ===============
> > 
> > Item was added:
> > + ----- Method: CodeLoader>>allButShebangLine: (in category 'private') -----
> > + allButShebangLine: contentsString
> > +    "If tontentsString begins with '#!!' then assume that it contains a Unix
> > +    shebang line should be skipped prior to evaluating the contents."
> > +    
> > +    (contentsString beginsWith: '#!!')
> > +        ifTrue: [contentsString lineIndicesDo: [:line :end :endOfLine |
> > +            ^ contentsString allButFirst: endOfLine ]]
> > +        ifFalse: [^ contentsString]
> > + 
> > +    " CodeLoader new allButShebangLine:
> > + '#!!/usr/llocal/bin/squeak --
> > + Transcript cr; show: ''Hello world!!''
> > + ' "!
> > 
> > Item was changed:
> >  ----- Method: CodeLoader>>installSourceFile: (in category 'installing') -----
> >  installSourceFile: aStream
> >      "Install the previously loaded source file"
> >      | contents trusted |
> >      aStream ifNil:[^self error:'No content to install'].
> >      trusted := SecurityManager default positionToSecureContentsOf: aStream.
> >      trusted ifFalse:[(SecurityManager default enterRestrictedMode) 
> >                      ifFalse:[ aStream close.
> >                              ^ self error:'Insecure content encountered']].
> > +    contents := self allButShebangLine: aStream upToEnd unzipped asString.
> > -    contents := aStream upToEnd unzipped asString.
> >      (aStream respondsTo: #close) ifTrue:[aStream close].
> >      ^contents readStream fileIn!
> > 
> > 

> 



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