* byte-compiling compressed files
@ 2007-08-14 23:26 Richard Stallman
2007-08-15 7:09 ` Mathias Dahl
0 siblings, 1 reply; 2+ messages in thread
From: Richard Stallman @ 2007-08-14 23:26 UTC (permalink / raw)
To: emacs-devel
You can visit a compressed .el file, but you can't byte compile it.
Do people think it would be a good idea to add such a feature?
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Date: Mon, 13 Aug 2007 08:58:01 +0200
From: ESCOUFLAIRE Pierre-Louis <pierre-louis.escouflaire@eurocontrol.int>
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To: bug-gnu-emacs@gnu.org
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Subject: Re: Suggestion: elisp files compression
Hello,
"A picture is sometimes more valuable than 1,000 words", :) then...
The `ediff-util.el.gz' emacs byte-compilation (using the menu item in
``Emacs-Lisp") reproduces the problem and outputs the following error
message:
\f
Compiling file /home/esf/emacs-test/ediff-util.el.gz at Mon Aug 13
08:28:10 2007
ediff-util.el.gz:68:32:Error: Cannot open load file: ediff-init.el
Note that the 'ediff-init.el.gz' file is in the same directory.
Then, what I mean by transparency is that it cannot open the gzipped
file corresponding to the non-gzipped one.
A bit deeper into `ediff-util.el.gz' (line 68) shows a difference with
previous lines that use `nil` rather than `'noerror` (column 32) and the
`load` function description says:
If optional second arg NOERROR is non-nil,
report no error if FILE doesn't exist.
I am not sure to fully understand the meaning of the description (report
no error = do not report error ?) but this could be a problem from
NOERROR that should not report an error.
Thanks for your time and concern.
Regards,
Pierre-Louis ESCOUFLAIRE
Richard Stallman wrote:
> The problem is that navigating through gzipped elisp source files is
> transparent but byte-compiling them is not (for files with dependencies).
>
> I don't really understand what that means. Could you explain?
> Could you state a precise test case?
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: byte-compiling compressed files
2007-08-14 23:26 byte-compiling compressed files Richard Stallman
@ 2007-08-15 7:09 ` Mathias Dahl
0 siblings, 0 replies; 2+ messages in thread
From: Mathias Dahl @ 2007-08-15 7:09 UTC (permalink / raw)
To: rms; +Cc: emacs-devel
> You can visit a compressed .el file, but you can't byte compile it.
> Do people think it would be a good idea to add such a feature?
I can see how it might be handy, but I cannot say that I would use it
much. How about other operations, like for example being able to copy
the uncompressed file to some place? An example:
C-x C-f test.el.gz RET ;; File opened and uncompressed.
M-x copy-file RET M-n ;; Doing this, test.el.gz is presented.
I could of course do C-x C-w to write the buffer contents to a new
file. Maybe there are similar scenarios?
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