Update publishing instructions

We've got a publish script now!

guide/src/publishing.md

@@ -8,54 +8,29 @@
   git pull origin master
   ```
 
-* [ ] Update `Cargo.toml` versions and dependency versions:
+* [ ] Run `rustc ./publish.rs`
 
-  ```
-  git ls-files | grep Cargo.toml | xargs sed -i '' -e 's/0\.X\.Y/0.X.Z/g'
-  ```
-
-  where "0.X.Y" is the old version and "0.X.Z" is the new version.
+* [ ] Run `./publish bump` - this will update all version numbers
 
 * [ ] Write a "0.X.Z" entry in the CHANGELOG.md
 
-* [ ] Run all the tests for sanity
-
-  ```
-  cargo test
-  cargo test -p js-sys
-  cargo test -p js-sys --target wasm32-unknown-unknown
-  cargo test -p wasm-bindgen-webidl
-  cargo test -p web-sys
-  ```
-
 * [ ] Commit the version bump:
 
   ```
   git commit -m "Bump to version 0.X.Z"
   ```
 
+* [ ] Send a PR to the `wasm-bindgen` repository, get it merged
+
+* [ ] Check out the merge commit of `wasm-bindgen`
+
 * [ ] Comment out the `[patch]` section in the root `Cargo.toml` that only
       exists to make sure that `console_error_panic_hook` in tests is using
       *this* `wasm-bindgen` rather than one from crates.io.
 
-* [ ] Publish the crates in reverse dependency order:
+* [ ] Run `rustc ./publish.rs`
 
-  ```
-  cd crates/shared && cargo publish && cd -
-  cd crates/backend && cargo publish && cd -
-  cd crates/macro && cargo publish && cd -
-  cd crates/cli-support && cargo publish && cd -
-  cd crates/test-macro && cargo publish && cd -
-  cd crates/test && cargo publish --no-verify && cd -
-  cd crates/cli && cargo publish && cd -
-  cargo publish --allow-dirty # because of uncommitted, commented out [patch] section
-  ```
-
-* [ ] Push the commit:
-
-  ```
-  git push origin master
-  ```
+* [ ] Run `./publish publish`
 
 * [ ] Tag the release and push it: