From f25cbd633bf3f06b33c3a0be893503cfdbcd58c0 Mon Sep 17 00:00:00 2001
From: Nicholas Wiltsie <nwiltsie@mednet.ucla.edu>
Date: Mon, 29 Jul 2024 16:06:17 -0700
Subject: [PATCH] Get the next version

---
 .github/workflows/create-release-pr.yaml |  8 +++++-
 get_next_version.py                      | 34 ++++++++++++++++++++++++
 2 files changed, 41 insertions(+), 1 deletion(-)
 create mode 100644 get_next_version.py

diff --git a/.github/workflows/create-release-pr.yaml b/.github/workflows/create-release-pr.yaml
index 909cac5..5f0fcb6 100644
--- a/.github/workflows/create-release-pr.yaml
+++ b/.github/workflows/create-release-pr.yaml
@@ -30,7 +30,6 @@ jobs:
       # sidecar scripts
       - id: workflow-parsing
         name: Get SHA of reusuable workflow
-        shell: bash
         env:
           REPO: ${{ github.repository }}
           RUN_ID: ${{ github.run_id }}
@@ -53,6 +52,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           path: caller
+          fetch-tags: true
 
       - name: Set up python
         uses: actions/setup-python@v5
@@ -61,3 +61,9 @@ jobs:
 
       # Install the semver package
       - run: pip install semver==3.0.2
+
+      - run: python reusable/get_next_version.py
+        env:
+          REPO_DIR: caller
+          BUMP_TYPE: ${{ inputs.bump_type }}
+          EXACT_VERSION: ${{ inputs.exact_version }}
diff --git a/get_next_version.py b/get_next_version.py
new file mode 100644
index 0000000..c34e66b
--- /dev/null
+++ b/get_next_version.py
@@ -0,0 +1,34 @@
+"Get the next tag version."
+
+import os
+import subprocess
+from pathlib import Path
+
+import semver
+
+
+def get_next_tag():
+    "Return the next tag after the appropriate bump type."
+    repo_dir = os.environ["REPO_DIR"]
+    bump_type = os.environ["BUMP_TYPE"]
+    exact_version = os.environ["EXACT_VERSION"]
+    output_file = Path(os.environ["GITHUB_OUTPUT"])
+
+    if bump_type == "exact":
+        return exact_version
+
+    # Get the most recent ancestor tag
+    last_tag = subprocess.check_output(
+        ["git", "describe", "--tags", "--abbrev=0"],
+        cwd=repo_dir
+    ).decode("utf-8")
+
+    last_version = semver.Version.parse(last_tag)
+    next_version = last_version.next_version(part=bump_type)
+    print(f"{last_version} -> {bump_type} -> {next_version}")
+
+    with output_file.open(mode="w", encoding="utf-8") as outfile:
+        outfile.write(f"next_version={next_version}\n")
+
+if __name__ == "__main__":
+    get_next_tag()