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bug#48137: 27.2; `package-install-file' fails when loading a package fil
From: |
Eli Zaretskii |
Subject: |
bug#48137: 27.2; `package-install-file' fails when loading a package file with DOS line endings |
Date: |
Tue, 11 May 2021 15:55:31 +0300 |
> From: Ioannis Kappas <ioannis.kappas@gmail.com>
> Date: Tue, 11 May 2021 07:52:02 +0100
> Cc: Stefan Monnier <monnier@iro.umontreal.ca>, 48137@debbugs.gnu.org
>
> > So you are saying the description of the package needs to be decoded
> > before using it for list-packages? That'd be okay; all I care about
> > is that the decoded stuff does NOT replace the original raw bytes, but
> > instead is used only where decoding is needed. IOW, decoding should
> > either be done on substrings of the original file, and the result
> > stored in strings, or the decoded stuff should be placed in a separate
> > scratch buffer, which will be used only where decoding is really
> > needed.
>
> Is loading with `insert-file-contents' and saving as 'raw-text the
> same as copying the raw bytes of the original file?
No. You should load with insert-file-contents-literally, and then
saving will automatically DTRT.
You could also load using raw-text, in which case Emacs will be able
to convert EOL. But I don't recommend to do any conversions,
including the EOL conversions, because they still can change the
contents on saving in some rare cases.
> `hexlify-buffer' in 'hexl uses 'raw-text to display the raw bytes of
> an encoded buffer. I always assumed hexl displayed the actual binary
> representation of the underlying file.
It does, indeed.
> In which case, having `package-install-file' load the .el package file
> metaphorically and modifying `package-unpack' to store 'single files
> with 'raw-text should satisfy the requirement? Thus header parsing is
> done in the intended coding system, while the end package is a "copy"
> of the original.
Sorry, you lost me here: I don't think I understand the details of how
you intend to do the above.
> - (package--write-file-no-coding el-file)))
> + (package--write-file-raw-text el-file)))
You don't need to force any encoding on write: Emacs by default will
use the same encoding as the one used to read the file.
> Btw,
> https://www.gnu.org/software/emacs/manual/html_node/elisp/Coding-System-Basics.html
> mentions about the 'no-conversion coding system:
>
> no-conversion (and its alias binary) is equivalent to raw-text-unix:
> it specifies no conversion of either character codes or end-of-line.
>
> but since it is -unix, it does do EOL conversions to LF.
No, -unix means it doesn't convert EOL. IOW, the -unix part means
"assume Unix-style LF-only EOLs and don't convert EOL conventions".
- bug#48137: 27.2; `package-install-file' fails when loading a package file with DOS line endings, (continued)
- bug#48137: 27.2; `package-install-file' fails when loading a package file with DOS line endings, Eli Zaretskii, 2021/05/04
- bug#48137: 27.2; `package-install-file' fails when loading a package file with DOS line endings, Stefan Monnier, 2021/05/04
- bug#48137: 27.2; `package-install-file' fails when loading a package file with DOS line endings, Eli Zaretskii, 2021/05/04
- bug#48137: 27.2; `package-install-file' fails when loading a package file with DOS line endings, Ioannis Kappas, 2021/05/05
- bug#48137: 27.2; `package-install-file' fails when loading a package file with DOS line endings, Eli Zaretskii, 2021/05/05
- Message not available
- bug#48137: 27.2; `package-install-file' fails when loading a package file with DOS line endings, Ioannis Kappas, 2021/05/06
- bug#48137: 27.2; `package-install-file' fails when loading a package file with DOS line endings, Eli Zaretskii, 2021/05/06
- bug#48137: 27.2; `package-install-file' fails when loading a package file with DOS line endings, Stefan Monnier, 2021/05/06
- bug#48137: 27.2; `package-install-file' fails when loading a package file with DOS line endings, Eli Zaretskii, 2021/05/06
- bug#48137: 27.2; `package-install-file' fails when loading a package file with DOS line endings, Ioannis Kappas, 2021/05/11
- bug#48137: 27.2; `package-install-file' fails when loading a package file with DOS line endings,
Eli Zaretskii <=
- bug#48137: 27.2; `package-install-file' fails when loading a package file with DOS line endings, Ioannis Kappas, 2021/05/15
- bug#48137: 27.2; `package-install-file' fails when loading a package file with DOS line endings, Ioannis Kappas, 2021/05/16
- bug#48137: 27.2; `package-install-file' fails when loading a package file with DOS line endings, Eli Zaretskii, 2021/05/29
- bug#48137: 27.2; `package-install-file' fails when loading a package file with DOS line endings, Stefan Monnier, 2021/05/29
- bug#48137: 27.2; `package-install-file' fails when loading a package file with DOS line endings, Eli Zaretskii, 2021/05/29