numerous changes

+ fish & bash completions
+ -w/--where option
M moved util_readf to _reve.sh
M linter-detected warnings fixed
M less variable clutter

completions/reve.bash

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+_reve_completions() {
+    local cur prev opts modes reasons chores
+    cur="${COMP_WORDS[COMP_CWORD]}"
+    prev="${COMP_WORDS[COMP_CWORD-1]}"
+    
+    opts="-h --help -m --mode -r --reason -c --chore -w --where --shell-completion"
+    modes="dark light"
+    reasons="time network"
+    chores=$(ls ~/.config/reve/chores/mode | sed 's/\.sh$//')
+    
+    case "${prev}" in
+        -m|--mode)
+            COMPREPLY=( $(compgen -W "${modes}" -- ${cur}) )
+            return 0
+            ;;
+        -r|--reason)
+            COMPREPLY=( $(compgen -W "${reasons}" -- ${cur}) )
+            return 0
+            ;;
+        -c|--chore)
+            COMPREPLY=( $(compgen -W "${chores}" -- ${cur}) )
+            return 0
+            ;;
+        *)
+            ;;
+    esac
+    
+    COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
+    return 0
+}
+
+complete -F _reve_completions reve