diff options
Diffstat (limited to 'home-manager')
| -rwxr-xr-x | home-manager | 133 |
1 files changed, 132 insertions, 1 deletions
diff --git a/home-manager b/home-manager index 08cfd216..f351b2f3 100755 --- a/home-manager +++ b/home-manager @@ -1 +1,132 @@ -nix-shell --run "$(basename $0) $@" +#!/usr/bin/env fish + +if not set --query HOME + echo "error: no HOME" + exit 1 +end + +set --function channel_root $HOME/.nix-defexpr/channels +set --function user_nixpkgs $HOME/.nixpkgs + +if set --query XDG_CONFIG_HOME + set --function hm_config_dir $XDG_CONFIG_HOME/home-manager +else + set --function hm_config_dir $HOME/.config/home-manager +end + +for i in 1 + if test ! -d $user_nixpkgs + echo "user nixpkgs folder $user_nixpkgs does not exist, creating it" + mkdir -p $user_nixpkgs + end + if test -L $hm_config_dir -a (path resolve $hm_config_dir) = (path resolve (status basename)) + if test y = (read --nchars=1 --prompt-str="$hm_config_dir already exists as a symlink to the current directory. Remove it [yN]? ") + unlink $hm_config_dir + end + end + if test ! -d $hm_config_dir + echo "user home-manager configuration folder $hm_config_dir does not exist, creating it" + mkdir -p $hm_config_dir + end + if test ! -e $channel_root + if test -L $channel_root + # broken symlink + rm $channel_root + end + echo "channel root $channel_root does not exist, creating it" + mkdir -p $channel_root + else + if test ! -d $channel_root + echo "error: $channel_root is not a directory" + else if test -L $channel_root + echo "error: $channel_root is a symlink, please remove it" + else if path is --invert --perm write $channel_root + echo "error: $channel_root is not writable; might be a symlink" + else if path is --invert --type link $channel_root/* + for p in (path filter --invert --type link $channel_root/*) + # might be a broken symlink + if test -L $p -a ! -e $p + rm $p + else + echo "error: channel $p is not a broken symlink, don't know what to do with it" + end + end + # check again and fail if there are still unknown files + if path is --invert --type link $channel_root/* + echo "error: non-link(s) in $channel_root" + path filter --invert --type link $channel_root/* + else + continue + end + else + continue # with script + end + exit 1 + end +end + +set --function current_script_name (status basename) +switch $current_script_name + case darwin-rebuild + set --local darwin_config_source (path resolve (status dirname)/system/$hostname.nix) + set --local darwin_config_target $user_nixpkgs/darwin-configuration.nix + if test ! -e $darwin_config_target + ln -s $darwin_config_source $darwin_config_target + end + set --append argv -I darwin-config=$darwin_config_source + case nixos-rebuild + set --local nixos_config_source (path resolve (status dirname)/system/$hostname.nix) + set --local nixos_config_target $user_nixpkgs/configuration.nix + if test ! -e $nixos_config_target + ln -s $nixos_config_source $nixos_config_target + end + if ! fish_is_root_user + set --append argv --use-remote-sudo + end + set --append argv -I nixos-config=$nixos_config_source + case home-manager + set --local hm_config_source (path resolve (status dirname)/user/$hostname.nix) + set --local hm_config_target $hm_config_dir/home.nix + if test ! -e $hm_config_target + ln -s $hm_config_source $hm_config_target + end + set --export HOME_MANAGER_CONFIG $hm_config_source +end + +set --function old_channels (path basename $channel_root/*) +set --function --export HOME_MANAGER_CONFIG (path resolve (status dirname)/user/$hostname.nix) + +for np in $NIX_PATH + echo $np | read --function --delimiter "=" channel new_src_rel + set --local new_src (path resolve $new_src_rel) + + if test $channel = darwin-config + continue + end + if set --local i (contains --index $channel $old_channels) + set --erase old_channels[$i] + end + set --local target $channel_root/$channel + set --local src (path resolve $target) + if test -e $src + if test $src = $new_src + # no need to re-link it + continue + else + unlink $target + end + end + ln -s $new_src $target +end + +for old in $channel_root/$old_channels + rm $old +end + +set --function cmd $current_script_name $argv + +if set --query IN_NIX_SHELL + eval $cmd +else + nix-shell --run "$cmd" +end |