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Martin Atkins ff4ea042c2 config: Allow module authors to specify validation rules for variables 
The existing "type" argument allows specifying a type constraint that
allows for some basic validation, but often there are more constraints on
a variable value than just its type.

This new feature (requiring an experiment opt-in for now, while we refine
it) allows specifying arbitrary validation rules for any variable which
can then cause custom error messages to be returned when a caller provides
an inappropriate value.

    variable "example" {
      validation {
        condition = var.example != "nope"
        error_message = "Example value must not be \"nope\"."
      }
    }

The core parts of this are designed to do as little new work as possible
when no validations are specified, and thus the main new checking codepath
here can therefore only run when the experiment is enabled in order to
permit having validations.
 		2020-01-10 15:23:25 -08:00
..
configload configs: use local set of go-getter detectors 2020-01-07 09:38:46 -08:00
configschema Version tools per Go convention under tools.go 2019-10-17 22:23:39 +02:00
configupgrade providers: use addrs.Provider as map keys for provider.Factory (#23548) 2019-12-04 11:30:20 -05:00
hcl2shim vendor: switch to HCL 2.0 in the HCL repository 2019-10-02 15:10:21 -07:00
testdata config: Allow module authors to specify validation rules for variables 2020-01-10 15:23:25 -08:00
backend.go vendor: switch to HCL 2.0 in the HCL repository 2019-10-02 15:10:21 -07:00
compat_shim.go configs: Warn for deprecated interpolation and quoted type constraints 2019-11-13 07:55:55 -08:00
config.go addrs: replace "Type string" with "Type Provider" in ProviderConfig 2019-12-06 08:00:18 -05:00
config_build.go vendor: switch to HCL 2.0 in the HCL repository 2019-10-02 15:10:21 -07:00
config_build_test.go vendor: switch to HCL 2.0 in the HCL repository 2019-10-02 15:10:21 -07:00
config_test.go Standardise directory name for test data 2019-06-30 10:16:15 +02:00
depends_on.go vendor: switch to HCL 2.0 in the HCL repository 2019-10-02 15:10:21 -07:00
doc.go configs: Additional guidance in doc.go 2018-02-15 15:56:39 -08:00
experiments.go config: Allow module authors to specify validation rules for variables 2020-01-10 15:23:25 -08:00
experiments_test.go experiments: a mechanism for opt-in experimental language features 2019-12-10 09:27:05 -08:00
module.go config: Allow module authors to specify validation rules for variables 2020-01-10 15:23:25 -08:00
module_call.go vendor: switch to HCL 2.0 in the HCL repository 2019-10-02 15:10:21 -07:00
module_call_test.go vendor: switch to HCL 2.0 in the HCL repository 2019-10-02 15:10:21 -07:00
module_merge.go vendor: switch to HCL 2.0 in the HCL repository 2019-10-02 15:10:21 -07:00
module_merge_body.go vendor: switch to HCL 2.0 in the HCL repository 2019-10-02 15:10:21 -07:00
module_merge_test.go vendor: switch to HCL 2.0 in the HCL repository 2019-10-02 15:10:21 -07:00
named_values.go config: Allow module authors to specify validation rules for variables 2020-01-10 15:23:25 -08:00
parser.go vendor: switch to HCL 2.0 in the HCL repository 2019-10-02 15:10:21 -07:00
parser_config.go experiments: a mechanism for opt-in experimental language features 2019-12-10 09:27:05 -08:00
parser_config_dir.go fix diagnostics handling 2019-11-21 09:14:50 -05:00
parser_config_dir_test.go move IsEmptyDir to configs package 2019-07-18 13:07:10 -04:00
parser_config_test.go configs: Emit warnings for deprecated quoted references/keywords 2019-11-11 10:17:34 -08:00
parser_test.go vendor: switch to HCL 2.0 in the HCL repository 2019-10-02 15:10:21 -07:00
parser_values.go vendor: switch to HCL 2.0 in the HCL repository 2019-10-02 15:10:21 -07:00
parser_values_test.go configs: update values file invalid syntax test for new HCL behavior 2018-03-08 11:17:39 -08:00
provider.go configs: move ProviderConfigCompact[Str] from addrs to configs 2019-12-09 08:30:08 -05:00
provider_requirements.go Mildwonkey/tfconfig upgrade (#23670) 2020-01-10 11:54:53 -05:00
provider_test.go configs: move ProviderConfigCompact[Str] from addrs to configs 2019-12-09 08:30:08 -05:00
provisioner.go update destroy provisioner warning text 2019-12-06 10:20:23 -05:00
provisioneronfailure_string.go stringer: Regenerate files with latest version 2019-05-13 15:34:27 +01:00
provisionerwhen_string.go stringer: Regenerate files with latest version 2019-05-13 15:34:27 +01:00
resource.go addrs: replace "Type string" with "Type Provider" in ProviderConfig 2019-12-06 08:00:18 -05:00
synth_body.go vendor: switch to HCL 2.0 in the HCL repository 2019-10-02 15:10:21 -07:00
synth_body_test.go vendor: switch to HCL 2.0 in the HCL repository 2019-10-02 15:10:21 -07:00
util.go vendor: switch to HCL 2.0 in the HCL repository 2019-10-02 15:10:21 -07:00
variable_type_hint.go Version tools per Go convention under tools.go 2019-10-17 22:23:39 +02:00
variabletypehint_string.go stringer: Regenerate files with latest version 2019-05-13 15:34:27 +01:00
version_constraint.go vendor: switch to HCL 2.0 in the HCL repository 2019-10-02 15:10:21 -07:00