The first log in *Message* before this patch:
Loading /nix/store/bikm18vy6v07hmrvrll501i68440w9iw-emacs-29.1-rc1/share/emacs/site-lisp/site-start.el (source)...done
and after this patch:
Loading /nix/store/bikm18vy6v07hmrvrll501i68440w9iw-emacs-29.1-rc1/share/emacs/site-lisp/site-start (native compiled elisp)...done
I see no reason to symlink this dir.
Doing so may shadow unwanted libraries since the site-start.el of
Emacs adds paths under NIX_PROFILES to load-path.
It is added in [1] to fix "building emacs". However, I have no issue
in building and using Emacs after removing it.
[1]: https://github.com/NixOS/nixpkgs/pull/89351
"$out/share/emacs/site-lisp" is added to load-path in wrapper.sh[1]
using EMACSLOADPATH and "$out/share/emacs/native-lisp/" is added to
native-comp-eln-load-path in wrapper.sh[2] using
EMACSNATIVELOADPATH. There is no point to add them again here.
Additionally, the trailing "/" in "$out/share/emacs/native-lisp/"
causes duplicate entries in native-comp-eln-load-path:
("/nix/store/hash1-emacs-packages-deps/share/emacs/native-lisp/" ; [3]
"/home/user/.emacs.d/eln-cache/"
"/nix/store/hash1-emacs-packages-deps/share/emacs/native-lisp" ; [2]
"/nix/store/hash2-emacs-29.1-rc1/lib/emacs/29.1/native-lisp/")
load-path does not change with this patch applied.
[1]: 1476c13422/pkgs/build-support/emacs/wrapper.sh (L47)
[2]: 1476c13422/pkgs/build-support/emacs/wrapper.sh (L50)
[3]: 1476c13422/pkgs/build-support/emacs/wrapper.nix (L166)
Add this hook to checkPhase to allow for running MPI application in
the sandbox. It detects the MPI implementations and sets the respective
environment variables.
Before the change the following command did not work:
$ nix develop -i --impure --expr 'with import <nixpkgs> { system = "i686-linux"; }; (buildFHSUserEnv { name = "t"; targetPkgs = ps: with ps; [ libmpc stdenv.cc ]; }).env'
$ ld -lmpc -o a
ld: cannot find -lmpc: No such file or directory
It is expected to work as `NIX_LDFLAGS` does contain valid values:
$ echo $NIX_LDFLAGS
-L/usr/lib -L/usr/lib32
Note that for `gcc` it does work:
$ printf "int main(){}" | gcc -x c - -lmpc -o a
It happens because `HOST` role is enabled for `cc`:
$ echo $NIX_CC_WRAPPER_TARGET_HOST_i686_unknown_linux_gnu
1
But not for `BINTOOLS`:
$ echo $NIX_BINTOOLS_WRAPPER_TARGET_HOST_i686_unknown_linux_gnu
<empty>
The change adds BINTOOLS role and fixes linking:
$ nix develop -i --impure --expr 'with import ~/nm { system = "i686-linux"; }; (buildFHSUserEnv { name = "t"; targetPkgs = ps: with ps; [ libmpc stdenv.cc ]; }).env'
$ printf "int main(){}" | gcc -x c - -lmpc -o a
$ ld -lmpc -o a
ld: warning: cannot find entry symbol _start; not setting start address
The `name` & `version` attributes only existed in a previous form of
the API before it was switched over to using `fetchzip` &
`applyPatches`[1]. The attributes existed to be able to throw an
evaluation error with upgrade instructions when this was used. However,
this was before 22.11, so this shouldn't be in use anymore (and if
somebody is doing a migration from a very old NixOS, this is still
documented in the 22.11 release-notes[2]).
Anyways, this simplifies the code a little bit and also having both
`appName`/`appVersion` and `name`/`version` in there is quite confusing. But
still, I figured it's less confusing to not re-use attributes that were
deprecated in the past, hence the alternative naming.
[1] 3ca9b9a8ad
[2] d41b381310
This change makes sure that each Nextcloud plugin installed provides a
`meta` section with proper license information.
Unfortunately, the metadata from the appstore is useless for this
purpose since it doesn't differentiate between e.g. AGPL 3.x and AGPL
3.x or any later version. In fact, this isn't consistent between their
software, e.g. `bookmarks` has `agpl3Plus` according to the files'
headers[1] whereas `twofactor_nextcloud_notification` is AGPL 3 only[2].
I don't think there's any trivial and reasonable way to retrieve this
information programatically, so I decided to change the format of
`nextcloud-apps.json`[3] to also contain the license in the form of the
license attribute we have in `lib/licenses.nix`, i.e. GNU AGPL 3 or
later is `agpl3Plus`.
I retrieved the information using the following approach:
* go to the source code of $app at the revision we currently have
packaged
* check for a license identifier (does it specify the license only or
the license "or any later version")?
* first in `src/main.js` because most apps from Nextcloud itself used
actual spdx identifiers in the frontend's source-code.
* then in `lib/AppInfo/Application.php` which each Nextcloud app has.
License changes should be updated accordingly when updating the apps. As
with any other package in nixpkgs as well, this currently needs to be
done manually (or as part of the review process)[4].
Also, I decided to change the `name` of the `applyPatches` derivation
from `source-patched` to `nextcloud-app-${appName}-${appVersion}`. When
deploying a lot of apps (and probably displaying the diff using
`nix store diff-closures` on deploy), the current output isn't very
helpful. This is purely optional because I didn't want to break the
interface of `fetchNextcloudApp` again.
[1] https://github.com/nextcloud/bookmarks/blob/v13.1.0/lib/AppInfo/Application.php#L6
[2] https://github.com/nextcloud/twofactor_nextcloud_notification/blob/v3.7.0/lib/AppInfo/Application.php
[3] This isn't really well-defined since it's preprocessed with `jq(1)`
before passing the apps to nc4nix.
[4] Though notable license changes (e.g. agpl -> gpl) would also pop up
in the diff of <nextcloudversion>.json, so this is pretty easy to
catch.
