Add scripts for managing release process

These are very minorly adapted from the scripts in fontations.

resources/scripts/bump-version.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+# See usage() for usage
+
+source "$(dirname -- "$0";)/rel-common.sh"
+
+# Helpers
+function usage() {
+  echo "Usage: ./bump-version.sh crate1 crate2 crateN bump"
+  echo "       ./bump-version.sh fontbe fontc patch"
+  echo "bump is as defined by cargo release: major minor or patch"
+}
+
+# What is it you want us to do?
+if [ $# -eq 0 ]; then
+  die_with_usage "No arguments provided, must specify crate(s)"
+fi
+
+# bump is the last argument, crate list is everythign else
+bump="${@:$#}"
+set -- "${@:1:$(($#-1))}"
+crates=("$@")
+
+# Validate
+[[ "$bump" =~ ^(major|minor|patch)$ ]] || die_with_usage "Invalid bump, must be major, minor, or patch"
+
+validate_crates "${crates[@]}"
+
+# Do the thing. We set errexit so step failure should break us out.
+for crate in "${crates[@]}"
+do
+  cargo release version "${bump}" -p "${crate}" -x
+done
+
+echo "NEXT STEPS"
+echo "Commit these changes to a new branch, get it approved and merged, and switch to the up-to-date main."

resources/scripts/rel-common.sh

@@ -0,0 +1,19 @@
+set -o nounset
+set -o errexit
+
+# Colors courtesy of https://stackoverflow.com/a/20983251
+TEXT_RESET=$(tput sgr0)
+COLOR_RED=$(tput setaf 1)
+
+function die_with_usage() {
+    >&2 echo "${COLOR_RED}${1}${TEXT_RESET}"
+    usage
+    exit 1
+}
+
+function validate_crates() {
+    for crate in "$@"
+    do
+      [ -d "$crate" ]|| die_with_usage "Invalid crate: ${crate}"
+    done
+}

resources/scripts/release.sh

@@ -0,0 +1,44 @@
+#!/bin/bash
+# See usage() for usage
+
+source "$(dirname -- "$0";)/rel-common.sh"
+
+# Helpers
+function usage() {
+  echo "Usage:"
+  echo "       # release everything changed"
+  echo "       ./release.sh"
+  echo
+  echo "       # release one crate"
+  echo "       ./release.sh fontc"
+  echo
+  echo "Typically you should be running this after bump-version.sh"
+}
+
+# What is it you want us to do?
+if [ $# -gt 1 ]; then
+  die_with_usage "Specify 0 - meaning all - or 1 packages"
+fi
+crate_specifier=""
+if [ $# -eq 1 ]; then
+  crates=("$@")
+  validate_crates "${crates[@]}"
+  crate_specifier="-p ${crates[0]}"
+fi
+
+# Do the thing. We set errexit so step failure should break us out.
+
+echo "Dry run..."
+cargo release publish ${crate_specifier}
+
+echo "Doing the thing; ${COLOR_RED}PRESS CTRL+C if anything looks suspicious${TEXT_RESET}"
+
+echo "Publish to crates.io"
+cargo release publish -x ${crate_specifier}  # this prompts y/N
+echo "Generate tags"
+cargo release tag -x ${crate_specifier}  # this prompts y/N
+echo "Pushing tag to github"
+git push --tags
+
+echo "NEXT STEPS"
+echo "You probably want to create a release on github"