Use cargo-release to handle release automation (#82)

Author: sd2k

Diff for: CHANGELOG.md

@@ -27,6 +27,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   This should speed up build times and remove the dependency on `protoc` since we no longer need to compile proto definitions.
 - Bump tonic to 0.8.0 and remove tonic-build dependency.
 - Bump serde_with dependency to 2.0.0
+- Use cargo-release to automate release process
 
 ## [0.3.0] - 2022-04-14
 

Diff for: README.md

@@ -16,6 +16,18 @@ This SDK is still in development. The protocol between the Grafana server and th
 
 The [grafana-sample-backend-plugin-rust][sample-plugin] repository contains a sample backend plugin with a backend written in Rust, along with a docker-compose setup with automatic plugin reloading.
 
+## Developing
+
+### Releasing
+
+Releases are handled using [cargo-release][]. Run the following to dry-run release a new version of all crates:
+
+```bash
+cargo release <major|minor|patch> --workspace
+```
+
+If everything looks OK, add the `--execute` flag to go through with the release.
+
 ## License
 
 The Rust SDK is licensed under either of the following, at your option:
@@ -24,6 +36,7 @@ The Rust SDK is licensed under either of the following, at your option:
 - MIT License (LICENSE-MIT or https://opensource.org/licenses/MIT)
 
 [backend plugins]: https://grafana.com/docs/grafana/latest/developers/plugins/backend/
+[cargo-release]: https://crates.io/crates/cargo-release
 [go]: https://pkg.go.dev/github.com/grafana/grafana-plugin-sdk-go
 [grafana-rs-datasource]: https://github.com/toddtreece/grafana-rs-datasource
 [sample-plugin]: https://github.com/sd2k/grafana-sample-backend-plugin-rust/

Diff for: crates/grafana-plugin-sdk-macros/release.toml

@@ -0,0 +1 @@
+tag-prefix = "grafana-plugin-sdk-macros-"

Diff for: crates/grafana-plugin-sdk/release.toml

@@ -0,0 +1,7 @@
+pre-release-replacements = [
+  {file="../../CHANGELOG.md", search="Unreleased", replace="{{version}}"},
+  {file="../../CHANGELOG.md", search="\\.\\.\\.HEAD", replace="...{{tag_name}}", exactly=1},
+  {file="../../CHANGELOG.md", search="ReleaseDate", replace="{{date}}"},
+  {file="../../CHANGELOG.md", search="<!-- next-header -->", replace="<!-- next-header -->\n\n## [Unreleased] - ReleaseDate", exactly=1},
+  {file="../../CHANGELOG.md", search="<!-- next-url -->", replace="<!-- next-url -->\n[Unreleased]: https://github.com/assert-rs/predicates-rs/compare/{{tag_name}}...HEAD", exactly=1},
+]

Diff for: release.toml

@@ -0,0 +1,3 @@
+tag-prefix = ""
+sign-commit = true
+sign-tag = true