chore: Prepare 0.9.1 release (#1343)

* Update documentation url in cargo tomls

* Bump versions to 0.9.1

* Update guides

* Add prepare/publish scripts

* Update changelog

prepare-release.sh

@@ -0,0 +1,47 @@
+#!/bin/bash
+
+# Script which automates modifying source version fields, and creating a release
+# commit and tag. The commit and tag are not automatically pushed, nor are the
+# crates published (see publish-release.sh).
+
+set -ex
+
+if [ "$#" -ne 1 ]
+then
+  echo "Usage: $0 <version>"
+  exit 1
+fi
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+VERSION="$1"
+MINOR="$( echo ${VERSION} | cut -d\. -f1-2 )"
+
+VERSION_MATCHER="([a-z0-9\\.-]+)"
+TONIC_CRATE_MATCHER="(tonic|tonic-[a-z]+)"
+
+# Update the README.md.
+sed -i -E "s/${TONIC_CRATE_MATCHER} = \"${VERSION_MATCHER}\"/\1 = \"${MINOR}\"/" "$DIR/examples/helloworld-tutorial.md"
+sed -i -E "s/${TONIC_CRATE_MATCHER} = \"${VERSION_MATCHER}\"/\1 = \"${MINOR}\"/" "$DIR/examples/routeguide-tutorial.md"
+
+CRATES=( \
+  "tonic" \
+  "tonic-build" \
+  "tonic-types" \
+  "tonic-reflection" \
+  "tonic-health" \
+  "tonic-web" \
+)
+
+for CRATE in "${CRATES[@]}"; do
+  # Update html_root_url attributes.
+  sed -i -E "s~html_root_url = \"https://docs\.rs/${TONIC_CRATE_MATCHER}/$VERSION_MATCHER\"~html_root_url = \"https://docs.rs/\1/${VERSION}\"~" \
+    "$DIR/$CRATE/src/lib.rs"
+
+  # Update documentation url in Cargo.toml
+  sed -i -E "s~documentation = \"https://docs\.rs/$CRATE/$VERSION_MATCHER\"~documentation = \"https://docs.rs/${CRATE}/${VERSION}\"~" \
+    "$DIR/$CRATE/Cargo.toml"
+
+  # Update Cargo.toml version fields.
+  sed -i -E "s/^version = \"${VERSION_MATCHER}\"$/version = \"${VERSION}\"/" \
+    "$DIR/$CRATE/Cargo.toml"
+done