chore: add release scripts (#1957)

scripts/release.sh

@@ -0,0 +1,65 @@
+#!/bin/bash
+
+set -e
+
+help() {
+    cat <<- EOF
+Usage: TAG=tag $0
+
+Updates version in go.mod files and pushes a new brash to GitHub.
+
+VARIABLES:
+  TAG        git tag, for example, v1.0.0
+EOF
+    exit 0
+}
+
+if [ -z "$TAG" ]
+then
+    printf "TAG is required\n\n"
+    help
+fi
+
+TAG_REGEX="^v(0|[1-9][0-9]*)\\.(0|[1-9][0-9]*)\\.(0|[1-9][0-9]*)(\\-[0-9A-Za-z-]+(\\.[0-9A-Za-z-]+)*)?(\\+[0-9A-Za-z-]+(\\.[0-9A-Za-z-]+)*)?$"
+if ! [[ "${TAG}" =~ ${TAG_REGEX} ]]; then
+    printf "TAG is not valid: ${TAG}\n\n"
+    exit 1
+fi
+
+TAG_FOUND=`git tag --list ${TAG}`
+if [[ ${TAG_FOUND} = ${TAG} ]] ; then
+    printf "tag ${TAG} already exists\n\n"
+    exit 1
+fi
+
+if ! git diff --quiet
+then
+    printf "working tree is not clean\n\n"
+    git status
+    exit 1
+fi
+
+git checkout v10
+
+PACKAGE_DIRS=$(find . -mindepth 2 -type f -name 'go.mod' -exec dirname {} \; \
+  | sed 's/^\.\///' \
+  | sort)
+
+for dir in $PACKAGE_DIRS
+do
+    sed --in-place \
+      "s/go-pg\/pg\([^ ]*\) v.*/go-pg\/pg\1 ${TAG}/" "${dir}/go.mod"
+done
+
+for dir in $PACKAGE_DIRS
+do
+    printf "${dir}: go get -d && go mod tidy\n"
+    (cd ./${dir} && go get -d && go mod tidy)
+done
+
+sed --in-place "s/\(return \)\"[^\"]*\"/\1\"${TAG#v}\"/" ./version.go
+
+git checkout -b release/${TAG} v10
+git add -u
+git commit -m "Release $TAG (release.sh)"
+git push origin release/${TAG}

scripts/tag.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+
+set -e
+
+help() {
+    cat <<- EOF
+Usage: TAG=tag $0
+
+Creates git tags for public Go packages.
+
+VARIABLES:
+  TAG        git tag, for example, v1.0.0
+EOF
+    exit 0
+}
+
+if [ -z "$TAG" ]
+then
+    printf "TAG env var is required\n\n";
+    help
+fi
+
+if ! grep -Fq "\"${TAG#v}\"" version.go
+then
+    printf "version.go does not contain ${TAG#v}\n"
+    exit 1
+fi
+
+PACKAGE_DIRS=$(find . -mindepth 2 -type f -name 'go.mod' -exec dirname {} \; \
+  | grep -E -v "example|internal" \
+  | sed 's/^\.\///' \
+  | sort)
+
+git tag ${TAG}
+git push origin ${TAG}
+
+for dir in $PACKAGE_DIRS
+do
+    printf "tagging ${dir}/${TAG}\n"
+    git tag ${dir}/${TAG}
+    git push origin ${dir}/${TAG}
+done