[fish] Move 'source aliases.sh' to aliases.fish.

dot_config/private_fish/aliases.fish

@@ -1,3 +1,18 @@
+set -l SH_CONFIG_HOME $XDG_CONFIG_HOME'/sh'
+
+# POSIX Shell.
+source $SH_CONFIG_HOME'/aliases.sh'
+
 if test $CHEZMOI_OS = 'windows'
-    alias help="$BROWSER (cygpath -w '/usr/share/doc/fish/index.html')"
+    # Fish.
+    alias help '$BROWSER (cygpath -w '"'"'/usr/share/doc/fish/index.html'"'"')'
+    # Windows.
+    alias wczm 'chezmoi \
+	-D $USERPROFILE \
+	-S $USERPROFILE'"'"'/AppData/Roaming/chezmoi'"'"
+    alias wczmcd 'env \
+	-C $USERPROFILE'"'"'/AppData/Roaming/chezmoi'"'"' \
+	$SHELL -i'
 end
+
+set -e SH_CONFIG_HOME

dot_config/private_fish/config.fish

@@ -1,11 +1,10 @@
-set FISH_CONFIG_HOME $XDG_CONFIG_HOME'/fish'
+set -l FISH_CONFIG_HOME $XDG_CONFIG_HOME'/fish'
 
 if status is-interactive
-    source $XDG_CONFIG_HOME/sh/aliases.sh
     source $FISH_CONFIG_HOME'/aliases.fish'
 
     alias spu='sudo-pacman-update'
     fish_vi_key_bindings
 end
 
-set --erase FISH_CONFIG_HOME
+set -e FISH_CONFIG_HOME