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|
require "option_parser"
require "yaml"
module Guff
class Config
DEFAULTS = {
"host": "localhost",
"port": "8989",
"data": "./data",
"public": "./public",
"environment": "development",
"stuff": "/usr/local/share/guff/stuff",
}
DIRS = %w{
data
public
}
def initialize(app, args)
@data = defaults
parse_args(app, args)
end
def [](key : String) : String
@data[key]
end
def []=(key : String, val : String | Nil) : String
@data[key] = val
end
private def defaults : Hash(String, String)
DEFAULTS.merge(DEFAULTS.keys.reduce({} of String => String) do |r, key|
env_key = "GUFF_" + key.upcase
r[key] = ENV[env_key] if ENV.has_key?(env_key)
r
end)
end
private def parse_args(app, args)
OptionParser.parse(args) do |p|
p.on(
"--config PATH",
"Read config from YAML file."
) do |path|
YAML.parse(File.read(path)).each do |k, v|
self[k.as_s] = v.as_s
end
end
p.on(
"-h HOST",
"--host HOST",
"Host (defaults to \"%s\")." % [
DEFAULTS["host"]
]
) do |host|
self["host"] = host
end
p.on(
"-p PORT",
"--port PORT",
"Port (defaults to %s)." % [
DEFAULTS["port"]
]
) do |port|
self["port"] = port
end
p.on(
"-d PATH",
"--data-dir PATH",
"Path to data directory (defaults to \"%s\")." % [
DEFAULTS["data"],
]
) do |path|
self["data"] = path
end
p.on(
"--public-dir PATH",
"Path to public directory (defaults to \"%s\")." % [
DEFAULTS["public"],
]
) do |path|
self["public"] = path
end
p.on(
"--stuff-dir PATH",
"Path to Guff static files directory (defaults to \"%s\")." % [
DEFAULTS["stuff"],
]
) do |path|
self["stuff"] = path
end
p.on(
"-e ENV",
"--environment ENV",
"Environment (defaults to \"%s\")." % [
DEFAULTS["environment"],
]
) do |path|
self["public"] = path
end
p.on(
"--help",
"Print usage"
) do
puts p.to_s
exit 0
end
end
# expand output directory paths and create them
%w{data public}.each do |key|
# expand path (unless it is absolute)
self[key] = File.expand_path(File.join(
File.dirname(app),
self[key]
)) unless self[key][0] == '/'
# puts "DEBUG: %s: %s" % [key, self[key]]
Dir.mkdir(self[key], 0o770) unless Dir.exists?(self[key])
end
end
end
end
|
