Add Version Management Tooling

README.md

@@ -17,7 +17,7 @@ projects using [Packer](https://www.packer.io/).
 ```yaml
 repos:
   - repo: https://github.com/cisagov/pre-commit-packer
-    rev: <version> # Version from https://github.com/cisagov/pre-commit-packer/releases
+    rev: v0.0.2
     hooks:
       - id: packer_validate
         args:

bump_version.sh

@@ -0,0 +1,52 @@
+#!/usr/bin/env bash
+
+# bump_version.sh (show|major|minor|patch|prerelease|build|finalize)
+
+set -o nounset
+set -o errexit
+set -o pipefail
+
+VERSION_FILE=config/version.txt
+README_FILE=README.md
+
+HELP_INFORMATION="bump_version.sh (show|major|minor|patch|prerelease|build|finalize)"
+
+old_version=$(<"$VERSION_FILE")
+
+if [ $# -ne 1 ]
+then
+  echo "$HELP_INFORMATION"
+else
+  case $1 in
+    major|minor|patch|prerelease|build)
+      new_version=$(python -c "import semver; print(semver.bump_$1('$old_version'))")
+      echo Changing version from "$old_version" to "$new_version"
+      tmp_file=/tmp/version.$$
+      sed "s/$old_version/$new_version/" $VERSION_FILE > $tmp_file
+      mv $tmp_file $VERSION_FILE
+      sed "s/$old_version/$new_version/" $README_FILE > $tmp_file
+      mv $tmp_file $README_FILE
+      git add $VERSION_FILE $README_FILE
+      git commit -m"Bump version from $old_version to $new_version"
+      git push
+      ;;
+    finalize)
+      new_version=$(python -c "import semver; print(semver.finalize_version('$old_version'))")
+      echo Changing version from "$old_version" to "$new_version"
+      tmp_file=/tmp/version.$$
+      sed "s/$old_version/$new_version/" $VERSION_FILE > $tmp_file
+      mv $tmp_file $VERSION_FILE
+      sed "s/$old_version/$new_version/" $README_FILE > $tmp_file
+      mv $tmp_file $README_FILE
+      git add $VERSION_FILE $README_FILE
+      git commit -m"Bump version from $old_version to $new_version"
+      git push
+      ;;
+    show)
+      echo "$old_version"
+      ;;
+    *)
+      echo "$HELP_INFORMATION"
+      ;;
+  esac
+fi

config/version.txt

@@ -0,0 +1 @@
+0.0.2

requirements-dev.txt

@@ -1,2 +1,3 @@
 --requirement requirements-test.txt
 ipython
+semver

tag.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+set -o nounset
+set -o errexit
+set -o pipefail
+
+version=$(./bump_version.sh show)
+
+git tag "v$version" && git push --tags