terraform/helper
Martin Atkins f65b7c5372 helper/plugin: Discard meaningless differences from provider planning
Due to various inprecisions in the old SDK implementation, applying the
generated diff can potentially make changes to the data structure that
have no real effect, such as replacing an empty list with a null list or
vice-versa.

Although we can't totally eliminate such diff noise, here we attempt to
avoid it in situations where there are _only_ meaningless changes -- where
the prior state and planned state are equivalent -- by just echoing back
the prior state verbatim to ensure that Terraform will treat it as a noop
change.

If there _are_ some legitimate changes then the result may still contain
meaningless changes alongside it, but that is just a cosmetic problem for
the diff renderer, because the meaningless changes will be ignored
altogether during a subsequent apply anyway. The primary goal here is just
to ensure we can converge on a fixpoint when there are no explicit changes
in the configuration.
2019-01-22 15:41:10 -08:00
..
acctest Fix swallowed err in acctest package 2017-07-19 16:24:41 -07:00
config Fix failing tests 2014-10-09 21:29:21 -07:00
copy config/module: use the raw source as part of the key 2016-09-30 10:44:46 -07:00
customdiff helper/customdiff: Helper functions for CustomizeDiff 2017-12-18 10:38:20 -08:00
didyoumean helper/didyoumean: helper library for "Did you mean ...? suggestions 2017-10-16 17:50:57 -07:00
diff helper/diff: handle unknownvariablevalue 2016-11-09 14:28:16 -08:00
encryption provider/aws: Extract helper/encryption library 2016-12-06 14:24:21 -06:00
experiment terraform: default shadow to false 2017-02-06 18:02:32 -08:00
hashcode hashcode: "Strings" function for hashing slices of strings 2017-10-20 14:54:23 -07:00
hilmapstructure core: Defeat backward compatibilty in mapstructure 2016-06-08 18:38:41 +01:00
logging pretty-print json in http requests/responses 2018-08-09 12:27:58 -07:00
mutexkv provider/aws: serialize SG rule access to fix race condition 2015-11-18 12:39:59 -06:00
pathorcontents helper/pathorcontents: Skip one test when root 2018-09-19 11:38:51 -05:00
plugin helper/plugin: Discard meaningless differences from provider planning 2019-01-22 15:41:10 -08:00
resource command: "terraform init" can partially initialize for 0.12upgrade 2019-01-14 11:33:21 -08:00
schema make sure id really gets set in SetId 2019-01-10 20:28:11 -05:00
shadow Make sure shadow.closeWalker doesn't copy Mutexes 2017-07-07 11:20:54 -04:00
signalwrapper providers/azurerm: cancellable storage account creation 2016-08-15 21:12:32 -07:00
slowmessage helper/slowmessage 2017-02-14 09:27:23 -08:00
structure helper/structure: More cases for NormalizeJsonString tests 2018-01-17 15:53:38 -08:00
validation helper/validation: Add Any() SchemaValidateFunc 2018-10-18 20:58:53 -04:00
variables command/init: backend-config accepts key=value pairs 2017-03-16 23:27:05 -07:00
wrappedreadline command: split out and tag code so compilation works on Solaris 2016-11-14 00:32:01 -08:00
wrappedstreams helper/wrappedstreams: get original console input/output on Windows 2016-11-21 10:44:01 -08:00
README.md dos2unix 2014-07-28 10:43:00 -07:00

README.md

Helper Libraries

This folder contains helper libraries for Terraform plugins. A running joke is that this is "Terraform standard library" for plugins. The goal of the packages in this directory are to provide high-level helpers to make it easier to implement the various aspects of writing a plugin for Terraform.