improve fish startup speed by generating exportenvs.fish

.config/fish/config.fish

@@ -1,8 +1,9 @@
 source ~/.aliases
 
 # Environment variables
-for line in (cat ~/.exportenvs)
-	bass $line
+# ~/.exportenvs.fish is generated by ~/dotscripts/gen/fish-exportenvs
+if test -f ~/.exportenvs.fish
+    source ~/.exportenvs.fish
 end
 
 if test -f ~/.config/fish/config_local.fish

README.md

@@ -75,7 +75,12 @@ Here are detailed information for each compenent of my dotfiles
 I don't track `bashrc` or `bash_profile` because I like to keep it to the system's defaults.
 
 The fish shell configuration is at `.config/fish/` and `config.fish` doesn't really anything specific,
-it just sources the shared environment variable file (`.exportenvs`) and the shared aliases (`.aliases`).
+it just sources the shared environment variable file (`.exportenvs.fish`) and the shared aliases (`.aliases`).
+
+The `.exportenvs.fish` file is generated by [`dotscripts/gen/fish-exportenvs`](dotscripts/gen/fish-exportenvs).
+It takes [`.exportenvs`](.exportenvs) and translates it into fish syntax. Instead of
+using bass to source `.exportenvs` on the fly during fish's startup, fish can
+source the generated `.exportenvs.fish` directly which improves performance signifanctly.
 
 I have a symlink `.bash_aliases` pointing to `.aliases` because bash likes to look for that file.
 

dotscripts/gen/fish-exportenvs

@@ -0,0 +1,18 @@
+#!/usr/bin/env fish
+
+# Stubbornly translates ~/.exportenvs to ~/.exportenvs.fish
+
+echo "" > ~/.exportenvs.fish # clear the file
+
+for fileline in (cat ~/.exportenvs | sed 's/#!.\+$/#!\/usr\/bin\/env fish/')
+    set line (echo "$fileline" | sed 's/export //' | sed 's/#.\+//')
+    if test -z "$line"
+        echo "Adding '$fileline' as-is"
+        echo "$fileline" >> ~/.exportenvs.fish
+        continue
+    end
+    set name (echo "$line" | sed 's/=.\+$//' | sed 's/^$//')
+    set content (echo "$line" | sed 's/^.\+=//' | sed 's/\$(/(/')
+    echo "Adding $name with $content"
+    echo set -x "$name" $content >> ~/.exportenvs.fish
+end

dotscripts/setup/fish

@@ -25,6 +25,12 @@ fi
 
 echo Maybe add ~/local/share/man to manpath but I forgot how as of writing
 
+# env
+if ! [ -f ~/.exportenvs.fish ]; then
+    echo "Generating ~/.exportenvs.fish"
+    ~/dotscripts/gen/fish-exportenvs
+fi
+
 # TODO have a better check for omf existence (command -v doesnt work)
 # Although omf does this same check lol
 if [ ! -d ~/.local/share/omf ]; then