Add multi-module release launcher example

examples/multi-module/release.sh

@@ -0,0 +1,48 @@
+#!/bin/sh
+set -eu
+
+usage() {
+  echo "usage: release.sh SELECTOR VERSION" >&2
+  exit 2
+}
+
+[ "$#" -eq 2 ] || usage
+selector=$1
+version=$2
+script_dir=$(CDPATH= cd "$(dirname "$0")" && pwd)
+repository_dir=$(git -C "$script_dir" rev-parse --show-toplevel)
+
+bootstrap_dir=$(mktemp -d "$(dirname "$repository_dir")/.releasekit-bootstrap.XXXXXX")
+selection_file=$bootstrap_dir/module-selection.tsv
+trap 'rm -rf "$bootstrap_dir"' EXIT
+"$script_dir/select-module.sh" selector "$selector" > "$selection_file"
+
+tab=$(printf '\t')
+IFS="$tab" read -r selected_selector tag_pattern module_dir profile_path < "$selection_file"
+module_path=$repository_dir
+if [ "$module_dir" != . ]; then
+  module_path=$repository_dir/$module_dir
+fi
+
+cp "$module_path/go.mod" "$bootstrap_dir/releasekit.mod"
+if [ -f "$module_path/go.sum" ]; then
+  cp "$module_path/go.sum" "$bootstrap_dir/releasekit.sum"
+else
+  : > "$bootstrap_dir/releasekit.sum"
+fi
+
+releasekit_module=gitea.maximumdirect.net/eric/ReleaseKit
+(
+  cd "$module_path"
+  export GOWORK=off
+  export GOTOOLCHAIN=local
+  go list -mod=mod -modfile="$bootstrap_dir/releasekit.mod" -m "$releasekit_module"
+  go build -mod=mod -modfile="$bootstrap_dir/releasekit.mod" \
+    -o "$bootstrap_dir/releasekit" "$releasekit_module/cmd/releasekit"
+)
+
+"$bootstrap_dir/releasekit" publish \
+  --repo "$repository_dir" \
+  --config "$profile_path" \
+  --expected-module "$module_dir" \
+  "$version"