fixing locator

This commit is contained in:
Paul Liverman III 2018-02-14 12:39:51 -08:00
parent 0d566bf103
commit 13dfb4c149

View File

@ -5,29 +5,40 @@ import insert, sort from table
-- locates and returns a module, or errors
-- if a path is specified, it will be checked before other paths
-- checks the project root, then each path specified in locator_config
try_require = (name, path) ->
locate = (name, path) ->
print "locate ->"
if path
print "try '#{path}.#{name}'"
ok, value = pcall -> require "#{path}.#{name}"
return value if ok
print "try '#{name}'"
ok, value = pcall -> require name
return value if ok
for item in *config
ok, value = pcall -> require "#{item.path}.#{name}"
if path
print "try '#{item.path}.#{path}.#{name}'"
ok, value = pcall -> require "#{item.path}.#{path}.#{name}"
else
print "try '#{item.path}.#{name}'"
ok, value = pcall -> require "#{item.path}.#{name}"
return value if ok
error "locator could not find '#{name}'"
if path
error "locator could not find '#{path}.#{name}'"
else
error "locator could not find '#{name}'"
-- works like Lapis's autoload, but
-- includes trying sub-application paths & can be called to access a value
autoload = (path, tab={}) ->
return setmetatable tab, {
__call: (t, name) ->
t[name] = try_require name, path
t[name] = locate name, path
return t[name]
__index: (t, name) ->
t[name] = try_require name, path
t[name] = locate name, path
return t[name]
}
@ -85,8 +96,8 @@ registry = setmetatable {}, {
-- public interface:
-- functions: autoload, make_migrations
-- tables: locate (locator alias), registry
locator = setmetatable {
locate: locator, :autoload, :make_migrations, :registry
return setmetatable {
:locate, :autoload, :make_migrations, :registry
}, {
__call: (t, here="") ->
if "init" == here\sub -4
@ -99,5 +110,3 @@ locator = setmetatable {
t[name] = autoload name
return t[name]
}
return locator