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Versions: 15
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Contents
# frozen_string_literal: true
module Anyway
# Parses environment variables and provides
# method-like access
class Env
using RubyNext
using Anyway::Ext::DeepDup
using Anyway::Ext::Hash
class << self
def from_hash(hash, prefix: nil, memo: {})
hash.each do |key, value|
prefix_with_key = (prefix && !prefix.empty?) ? "#{prefix}_#{key.to_s.upcase}" : key.to_s.upcase
if value.is_a?(Hash)
from_hash(value, prefix: "#{prefix_with_key}_", memo: memo)
else
memo[prefix_with_key] = value.to_s
end
end
memo
end
end
include Tracing
attr_reader :data, :traces, :type_cast, :env_container
def initialize(type_cast: AutoCast, env_container: ENV)
@type_cast = type_cast
@data = {}
@traces = {}
@env_container = env_container
end
def clear
data.clear
traces.clear
end
def fetch(prefix)
return data[prefix].deep_dup if data.key?(prefix)
Tracing.capture do
data[prefix] = parse_env(prefix)
end.then do |trace|
traces[prefix] = trace
end
data[prefix].deep_dup
end
def fetch_with_trace(prefix)
[fetch(prefix), traces[prefix]]
end
private
def parse_env(prefix)
match_prefix = prefix.empty? ? prefix : "#{prefix}_"
env_container.each_pair.with_object({}) do |(key, val), data|
next unless key.start_with?(match_prefix)
path = key.sub(/^#{match_prefix}/, "").downcase
paths = path.split("__")
trace!(:env, *paths, key: key) { data.bury(type_cast.call(val), *paths) }
end
end
end
end
Version data entries
15 entries across 15 versions & 1 rubygems