diff options
author | elijah <elijah@riseup.net> | 2014-11-24 22:45:27 -0800 |
---|---|---|
committer | elijah <elijah@riseup.net> | 2014-11-24 22:45:27 -0800 |
commit | b839376a507e37a048ea2df53127ed0884310f60 (patch) | |
tree | 68ba30a77c51a3ee1a2c9ddd7187e6743cff08f1 /lib/leap_cli/core_ext/json.rb | |
parent | 8450768268c2bdf82cd6d6bfa9972c70bc5cdcac (diff) |
moved core_ext and lib_ext under leap_cli
Diffstat (limited to 'lib/leap_cli/core_ext/json.rb')
-rw-r--r-- | lib/leap_cli/core_ext/json.rb | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/lib/leap_cli/core_ext/json.rb b/lib/leap_cli/core_ext/json.rb new file mode 100644 index 0000000..1a82bd9 --- /dev/null +++ b/lib/leap_cli/core_ext/json.rb @@ -0,0 +1,42 @@ +module JSON + # + # Output JSON from ruby objects in such a manner that all the hashes and arrays are output in alphanumeric sorted order. + # This is required so that our generated configs don't throw puppet or git for a tizzy fit. + # + # Beware: some hacky stuff ahead. + # + # This relies on the pure ruby implementation of JSON.generate (i.e. require 'json/pure') + # see https://github.com/flori/json/blob/master/lib/json/pure/generator.rb + # + # The Oj way that we are not using: Oj.dump(obj, :mode => :compat, :indent => 2) + # + def self.sorted_generate(obj) + # modify hash and array + Array.class_eval do + alias_method :each_without_sort, :each + def each(&block) + sorted = sort {|a,b| a.to_s <=> b.to_s } + for i in 0..(sorted.length-1) do + yield sorted[i] + end + end + end + Hash.class_eval do + alias_method :each_without_sort, :each + def each(&block) + self.keys.each do |key| + yield key, self.fetch(key) # fetch is used so we don't trigger Config::Object auto-eval + end + end + end + + # generate json + json_str = JSON.pretty_generate(obj) + + # restore hash and array + Hash.class_eval {alias_method :each, :each_without_sort} + Array.class_eval {alias_method :each, :each_without_sort} + + return json_str + end +end |