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https://github.com/nix-community/home-manager
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files: add onChange
option
This option allows execution of arbitrary shell code when a file that is linked into the home directory has been changed between generations.
This commit is contained in:
parent
dda65c0877
commit
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4 changed files with 46 additions and 33 deletions
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@ -197,6 +197,24 @@ in
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''
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''
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);
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);
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home.activation.checkFilesChanged = dag.entryBefore ["linkGeneration"] (
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''
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declare -A changedFiles
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'' + concatMapStrings (v: ''
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cmp --quiet "${v.source}" "${config.home.homeDirectory}/${v.target}" \
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&& changedFiles["${v.target}"]=0 \
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|| changedFiles["${v.target}"]=1
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'') (filter (v: v.onChange != "") (attrValues cfg))
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);
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home.activation.onFilesChange = dag.entryAfter ["linkGeneration"] (
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concatMapStrings (v: ''
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if [[ ${"$\{changedFiles"}["${v.target}"]} -eq 1 ]]; then
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${v.onChange}
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fi
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'') (filter (v: v.onChange != "") (attrValues cfg))
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);
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home-files = pkgs.stdenv.mkDerivation {
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home-files = pkgs.stdenv.mkDerivation {
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name = "home-manager-files";
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name = "home-manager-files";
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@ -95,6 +95,17 @@ in
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are symbolic links to the files of the source directory.
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are symbolic links to the files of the source directory.
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'';
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'';
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};
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};
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onChange = mkOption {
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type = types.lines;
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default = "";
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description = ''
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Shell commands to run when file has changed between
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generations. The script will be run
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<emphasis>after</emphasis> the new files have been linked
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into place.
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'';
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};
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};
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};
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config = {
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config = {
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@ -771,23 +771,16 @@ in
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{
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{
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home.packages = [ cfg.package ];
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home.packages = [ cfg.package ];
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xsession.windowManager.command = "${cfg.package}/bin/i3";
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xsession.windowManager.command = "${cfg.package}/bin/i3";
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xdg.configFile."i3/config".source = configFile;
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xdg.configFile."i3/config" = {
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source = configFile;
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home.activation.checkI3 = dag.entryBefore [ "linkGeneration" ] ''
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onChange = ''
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if ! cmp --quiet \
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i3Socket=''${XDG_RUNTIME_DIR:-/run/user/$UID}/i3/ipc-socket.*
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"${configFile}" \
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if [ -S $i3Socket ]; then
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"${config.xdg.configHome}/i3/config"; then
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echo "Reloading i3"
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i3Changed=1
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$DRY_RUN_CMD ${cfg.package}/bin/i3-msg -s $i3Socket reload 1>/dev/null
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fi
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fi
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'';
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'';
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};
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home.activation.reloadI3 = dag.entryAfter [ "linkGeneration" ] ''
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SOCKET=''${XDG_RUNTIME_DIR:-/run/user/$UID}/i3/ipc-socket.*
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if [ -v i3Changed ] && [ -S $SOCKET ]; then
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echo "Reloading i3"
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${cfg.package}/bin/i3-msg -s $SOCKET reload 1>/dev/null
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fi
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'';
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}
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}
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(mkIf (cfg.config != null) {
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(mkIf (cfg.config != null) {
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@ -90,23 +90,14 @@ in
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(mkIf (cfg.config != null) {
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(mkIf (cfg.config != null) {
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home.file.".xmonad/xmonad.hs".source = cfg.config;
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home.file.".xmonad/xmonad.hs".source = cfg.config;
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home.file.".xmonad/xmonad.hs".onChange = ''
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echo "Recompiling xmonad"
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$DRY_RUN_CMD ${config.xsession.windowManager.command} --recompile
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home.activation.checkXmonad = dag.entryBefore [ "linkGeneration" ] ''
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# Attempt to restart xmonad if X is running.
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if ! cmp --quiet "${cfg.config}" "$HOME/.xmonad/xmonad.hs"; then
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if [[ -v DISPLAY ]] ; then
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xmonadChanged=1
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echo "Restarting xmonad"
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fi
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$DRY_RUN_CMD ${config.xsession.windowManager.command} --restart
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'';
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home.activation.applyXmonad = dag.entryAfter [ "linkGeneration" ] ''
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if [[ -v xmonadChanged ]]; then
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echo "Recompiling xmonad"
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${config.xsession.windowManager.command} --recompile
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# Attempt to restart xmonad if X is running.
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if [[ -v DISPLAY ]] ; then
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echo "Restarting xmonad"
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${config.xsession.windowManager.command} --restart
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fi
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fi
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fi
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'';
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'';
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})
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})
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