mime: store mime associations in ~/.local/share/applications instead of /run/current-system/sw/share/applications to facilitate sandboxing
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@ -1,4 +1,5 @@
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{ config, lib, ...}:
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# TODO: move into modules/users.nix
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{ config, lib, pkgs, ...}:
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let
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# [ ProgramConfig ]
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@ -6,6 +7,9 @@ let
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(p: p.enabled)
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(builtins.attrValues config.sane.programs);
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# [ ProgramConfig ]
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enabledProgramsWithPackage = builtins.filter (p: p.package != null) enabledPrograms;
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# [ { "<mime-type>" = { prority, desktop } ]
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enabledWeightedMimes = builtins.map weightedMimes enabledPrograms;
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@ -24,9 +28,43 @@ let
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(l: r: assert l.priority != r.priority; l.priority < r.priority)
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associations;
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sortMimes = mimes: builtins.mapAttrs (_k: sortOneMimeType) mimes;
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# { "<mime-type>"} = [ { priority, desktop } ... ]; } -> { "<mime-type>" = [ "<desktop>" ... ]; }
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removePriorities = mimes: builtins.mapAttrs
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(_k: associations: builtins.map (a: a.desktop) associations)
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mimes;
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# { "<mime-type>" = [ "<desktop>" ... ]; } -> { "<mime-type>" = "<desktop1>;<desktop2>;..."; }
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formatDesktopLists = mimes: builtins.mapAttrs
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(_k: desktops: lib.concatStringsSep ";" desktops)
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mimes;
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mimeappsListPkg = pkgs.writeTextDir "share/applications/mimeapps.list" (
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lib.generators.toINI { } {
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"Default Applications" = formatDesktopLists (removePriorities (sortMimes (mergeMimes enabledWeightedMimes)));
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}
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);
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localShareApplicationsPkg = (pkgs.symlinkJoin {
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name = "user-local-share-applications";
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paths = builtins.map
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(p: "${p.package}")
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(enabledProgramsWithPackage ++ [ { package=mimeappsListPkg; } ]);
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}).overrideAttrs (orig: {
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# like normal symlinkJoin, but don't error if the path doesn't exist
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buildCommand = ''
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mkdir -p $out/share/applications
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for i in $(cat $pathsPath); do
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if [ -e "$i/share/applications" ]; then
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${pkgs.xorg.lndir}/bin/lndir -silent $i/share/applications $out/share/applications
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fi
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done
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runHook postBuild
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'';
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postBuild = ''
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# rebuild `mimeinfo.cache`, used by file openers to show the list of *all* apps, not just the user's defaults.
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${pkgs.buildPackages.desktop-file-utils}/bin/update-desktop-database $out/share/applications
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'';
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});
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in
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{
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# the xdg mime type for a file can be found with:
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@ -35,8 +73,17 @@ in
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# - `xdg-mime query default <mimetype>` (e.g. x-scheme-handler/http)
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# the nix-configured handler can be found `nix-repl > :lf . > hostConfigs.desko.xdg.mime.defaultApplications`
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#
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# glib/gio is queried via glib.bin output:
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# - `gio mime x-scheme-handler/https`
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# - `gio open <path_or_url>`
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#
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# we can have single associations or a list of associations.
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# there's also options to *remove* [non-default] associations from specific apps
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xdg.mime.enable = true;
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xdg.mime.defaultApplications = removePriorities (sortMimes (mergeMimes enabledWeightedMimes));
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# N.B.: don't use nixos' `xdg.mime` option becaue that caues `/share/applications` to be linked into the whole system,
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# which limits what i can do around sandboxing. getting the default associations to live in ~/ makes it easier to expose
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# the associations to apps selectively.
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# xdg.mime.enable = true;
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# xdg.mime.defaultApplications = removePriorities (sortMimes (mergeMimes enabledWeightedMimes));
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sane.user.fs.".local/share/applications".symlink.target = "${localShareApplicationsPkg}/share/applications";
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}
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