build: script for doing a release

release.py

@@ -0,0 +1,36 @@
+#!/usr/bin/env python3
+
+import os
+import sys
+import hashlib
+import subprocess
+
+version = sys.argv[1]
+print("Releasing version v" + version)
+release_file = "rules_jooq_flyway_codegen-v" + version + ".tgz"
+subprocess.run(["git", "tag" , "v"+version], check=True)
+
+subprocess.run(["git", "archive", "--format=tar.gz", "-o", release_file, "HEAD"], check=True)
+with open(release_file, "rb") as f:
+    bytes=f.read()
+    checksum = hashlib.sha256(bytes).hexdigest()
+
+lines = []
+with open("README.md", "r") as f:
+    lines = f.readlines()  
+
+with open("README-new.md", "w") as f:
+    for l in lines:
+        print(l)
+        if "    sha256" in l:
+            f.write("        sha256 = \"" + checksum + "\",\n")
+        elif "urls = [\"https://github.com/richardstephens/rules_jooq_flyway_codegen" in l:
+            f.write("        urls = [\"https://github.com/richardstephens/rules_jooq_flyway_codegen/releases/download"
+            +"v"+version+"/"+release_file+"\"],\n")
+        else:
+            f.write(l)
+
+os.unlink("README.md")
+os.rename("README-new.md", "README.md")
+
+