feat(bait): add catchOnce function

golibs/bait/bait.go

@@ -38,6 +38,7 @@ failed, etc. To find all available hooks, see doc hooks.`)
 
 	L.SetField(mod, "throw", luar.New(L, b.bthrow))
 	L.SetField(mod, "catch", luar.New(L, b.bcatch))
+	L.SetField(mod, "catchOnce", luar.New(L, b.bcatchOnce))
 
 	L.Push(mod)
 
@@ -55,3 +56,9 @@ func (b *Bait) bthrow(name string, args ...interface{}) {
 func (b *Bait) bcatch(name string, catcher func(...interface{})) {
 	b.Em.On(name, catcher)
 }
+
+// catchOnce(name, cb)
+// Same as catch, but only runs the `cb` once and then removes the hook
+func (b *Bait) bcatchOnce(name string, catcher func(...interface{})) {
+	b.Em.Once(name, catcher)
+}

libs/ansikit/init.lua

@@ -5,11 +5,11 @@ local lunacolors = require 'lunacolors'
 local ansikit = {}
 
 ansikit.clear = function(scrollback)
-	typ = (scrollback and 3 or 2)
+	local typ = (scrollback and 3 or 2)
 	return ansikit.printCSI(typ, 'J')
 end
 
-ansikit.clearFromPos = function(scrollback)
+ansikit.clearFromPos = function()
 	return ansikit.printCSI(0, 'J')
 end
 
@@ -47,7 +47,7 @@ end
 ansikit.cursorStyle = function(style)
 	style = (style and style or ansikit.underlineCursor)
 	if style > 6 or style < 1 then style = ansikit.underlineCursor end
-	
+
 	return ansikit.printCSI(style, ' q')
 end
 
@@ -79,7 +79,7 @@ end
 
 ansikit.link = function(url, text)
 	if not url then error 'ansikit: missing url for hyperlink' end
-	local text = (text and text or 'link')
+	text = (text and text or 'link')
 	return lunacolors.blue('\27]8;;' .. url .. '\27\\' .. text .. '\27]8;;\27\\\n')
 end
 

preload.lua

@@ -1,9 +1,9 @@
 -- The preload file initializes everything else for our shell
-
-local fs = require 'fs'
-local commander = require 'commander'
 local bait = require 'bait'
-require 'succulent' -- Function additions
+local commander = require 'commander'
+local fs = require 'fs'
+local lunacolors = require 'lunacolors'
+local _ require 'succulent' -- Function additions
 local oldDir = hilbish.cwd()
 
 local shlvl = tonumber(os.getenv 'SHLVL')
@@ -37,8 +37,6 @@ commander.register('cd', function (args)
 	end
 	fs.cd(hilbish.home)
 	bait.throw('cd', hilbish.home)
-
-	return
 end)
 
 commander.register('exit', function()
@@ -74,8 +72,8 @@ These are the global Hilbish functions that are always available and not part of
 				return
 			end
 			funcdocs = f:read '*a'
-			local subdocs = table.map(fs.readdir(moddocPath), function(f)
-				return lunacolors.underline(lunacolors.blue(string.gsub(f, '.txt', '')))
+			local subdocs = table.map(fs.readdir(moddocPath), function(fname)
+				return lunacolors.underline(lunacolors.blue(string.gsub(fname, '.txt', '')))
 			end)
 			if subdocName == 'index' then
 				funcdocs = funcdocs .. '\nSubdocs: ' .. table.concat(subdocs, ', ')
@@ -135,8 +133,6 @@ A section is a module or a literal section and a subdoc is a subsection for it.
 Available sections: ]]
 
 	print(table.concat(modules, ', '))
-
-	return
 end)
 
 do
@@ -207,7 +203,6 @@ to get a list of recent directories, use {green}{underline}cdr list{reset}]])
 	end
 
 	fs.cd(recentDirs[index])
-	return
 end)
 
 -- Hook handles