New version prompting

Check if there is a new version of the CLI, at most once an hour, and
display a notification to the user if there is a new version.

.mockery.yaml

@@ -22,3 +22,9 @@ packages:
       outpkg: "mock_{{.PackageName}}"
       all: true
       recursive: true
+  github.com/hashicorp/hcp/internal/pkg/api/releasesapi/client:
+    config:
+      dir: "internal/pkg/api/releasesapi/mocks"
+      outpkg: "mock_{{.PackageName}}"
+      all: true
+      recursive: true

Makefile

@@ -5,7 +5,7 @@ ROOT_DIR = $(dir $(abspath $(firstword $(MAKEFILE_LIST))))
 # the mock file is generated in the same package as the actual implementation,
 # store the mock file in MOCKERY_OUTPUT_FILES.
 MOCKERY_DIRS=./ internal/commands/auth/ internal/pkg/api/iampolicy
-MOCKERY_OUTPUT_DIRS=internal/pkg/api/mocks internal/commands/auth/mocks
+MOCKERY_OUTPUT_DIRS=internal/pkg/api/mocks internal/commands/auth/mocks internal/pkg/api/releasesapi/mocks
 MOCKERY_OUTPUT_FILES=internal/pkg/api/iampolicy/mock_setter.go \
 					 internal/pkg/api/iampolicy/mock_resource_updater.go
 

go.mod

@@ -12,6 +12,7 @@ require (
 	github.com/go-openapi/strfmt v0.23.0
 	github.com/hashicorp/go-hclog v1.5.0
 	github.com/hashicorp/go-multierror v1.1.1
+	github.com/hashicorp/go-version v1.6.0
 	github.com/hashicorp/hcl/v2 v2.19.1
 	github.com/hashicorp/hcp-sdk-go v0.92.0
 	github.com/lithammer/dedent v1.1.0

go.sum

@@ -91,6 +91,8 @@ github.com/hashicorp/go-hclog v1.5.0/go.mod h1:W4Qnvbt70Wk/zYJryRzDRU/4r0kIg0PVH
 github.com/hashicorp/go-multierror v1.0.0/go.mod h1:dHtQlpGsu+cZNNAkkCN/P3hoUDHhCYQXV3UM06sGGrk=
 github.com/hashicorp/go-multierror v1.1.1 h1:H5DkEtf6CXdFp0N0Em5UCwQpXMWke8IA0+lD48awMYo=
 github.com/hashicorp/go-multierror v1.1.1/go.mod h1:iw975J/qwKPdAO1clOe2L8331t/9/fmwbPZ6JB6eMoM=
+github.com/hashicorp/go-version v1.6.0 h1:feTTfFNnjP967rlCxM/I9g701jU+RN74YKx2mOkIeek=
+github.com/hashicorp/go-version v1.6.0/go.mod h1:fltr4n8CU8Ke44wwGCBoEymUuxUHl09ZGVZPK5anwXA=
 github.com/hashicorp/hcl/v2 v2.19.1 h1://i05Jqznmb2EXqa39Nsvyan2o5XyMowW5fnCKW5RPI=
 github.com/hashicorp/hcl/v2 v2.19.1/go.mod h1:ThLC89FV4p9MPW804KVbe/cEXoQ8NZEh+JtMeeGErHE=
 github.com/hashicorp/hcp-sdk-go v0.92.0 h1:0D429tlRozQoOjxQOSgaodNUhglhcjTg9n25vWDhkAo=