FYI, the OSProcessPlugin distributed with unix VMs provides these:

  <primitive: 'primitiveEnvironmentAt:' module: 'UnixOSProcessPlugin'>
  <primitive: 'primitiveEnvironmentAtSymbol:' module: 'UnixOSProcessPlugin'>

For Windows it is this (but the plugin is not distributed):

<primitive: 'primitiveGetEnvironmentStrings' module. 'Win32OSProcessPlugin'>

Dave


On Tue, Feb 22, 2011 at 11:45:30AM +0100, Alexander Lazarevi?? wrote:
> I would like to add this to the trunk. This would allow an image running on
> linux to read an envVar that points to a central directory of sources files
> (see thread [1]).
> On other platforms the environment dictionary is just empty.
> This could be easily changed in the future when the VMs on all platforms
> might offer a primitive to access the os envVars.
> 
> Alex
> 
> [1]
> http://lists.squeakfoundation.org/pipermail/squeak-dev/2010-December/155994.html
> 
> 2011/2/22 <commits at source.squeak.org>
> 
> > Alexander Lazarevi&#263; uploaded a new version of System to project The
> > Inbox:
> > http://source.squeak.org/inbox/System-laza.423.mcz
> >
> > ==================== Summary ====================
> >
> > Name: System-laza.423
> > Author: laza
> > Time: 22 February 2011, 11:31:19.136 am
> > UUID: 2c296259-64d4-499d-b4b5-9a4046d737fa
> > Ancestors: System-ul.422
> >
> > Add support for accessing OS environment variables (on linux at first)
> >
> > =============== Diff against System-ul.422 ===============
> >
> > Item was added:
> > + ----- Method: SmalltalkImage>>environ (in category 'os') -----
> > + environ
> > +       "Smalltalk os environ"
> > +       | env c in match out name |
> > +       env := IdentityDictionary new.
> > +       self os osVersion = 'linux' ifFalse: [^env]. "Currently only
> > supported on linux"
> > +       in := FileStream oldFileOrNoneNamed: '/proc/self/environ'.
> > +       in ifNil: [^env].
> > +       out := WriteStream on: String new.
> > +       match := $=.
> > +       [(c := in next) isNil] whileFalse: [
> > +               c = match
> > +                       ifTrue: [
> > +                               c = $= ifTrue: [name := out contents. match
> > := 0 asCharacter].
> > +                               c = 0 asCharacter ifTrue: [env at: name
> > asSymbol put: out contents. match := $=].
> > +                               out reset]
> > +                       ifFalse: [out nextPut: c]].
> > +       ^env!
> >
> > Item was added:
> > + ----- Method: SmalltalkImage>>getEnv: (in category 'os') -----
> > + getEnv: name
> > +       "Smalltalk os getEnv: 'HOME'"
> > +       ^self os environ at: name asSymbol ifAbsent: [nil]
> > + !
> >
> >
> >

>