Merge pull request #96 from felix-seifert/future-versions

ci: add ability to determine future versions

ci/version_determiner.py

@@ -0,0 +1,114 @@
+#!/usr/bin/python3
+
+import re
+import sys
+import version_retriever
+
+
+def get_arg(arg_idx) -> str:
+    return sys.argv[arg_idx]
+
+
+def get_release_version(release_type: str, current_version: str) -> str:
+    major, minor, patch = determine_new_version(current_version, release_type)
+    return str(major) + "." + str(minor) + "." + str(patch)
+
+
+def get_snapshot_version(release_type: str, current_version: str) -> str:
+    major, minor, patch = determine_new_version(current_version, release_type)
+    patch += 1
+    return str(major) + "." + str(minor) + "." + str(patch) + "-SNAPSHOT"
+
+
+def get_version_tag(release_type: str, current_version: str) -> str:
+    major, minor, patch = determine_new_version(current_version, release_type)
+    return "v" + str(major) + "." + str(minor) + "." + str(patch)
+
+
+def determine_new_version(current_version, release_type):
+    major, minor, patch, is_prerelease = dissect_version(current_version)
+
+    match release_type:
+        case "MAJOR":
+            major, minor, patch = get_major_release_version(major)
+        case "MINOR":
+            major, minor, patch = get_minor_release_version(major, minor)
+        case "PATCH":
+            major, minor, patch = get_patch_release_version(major, minor, patch,
+                                                            is_prerelease)
+        case _:
+            print("Second arg has to be `MAJOR`, `MINOR` or `PATCH`")
+            sys.exit()
+
+    return major, minor, patch
+
+
+def dissect_version(current_version) -> (int, int, int):
+    version_regex = get_regex()
+    regex_match = version_regex.search(current_version)
+    major: int = int(regex_match.groupdict().get("major"))
+    minor: int = int(regex_match.groupdict().get("minor"))
+    patch: int = int(regex_match.groupdict().get("patch"))
+    is_prerelease: bool = True if regex_match.groupdict().get(
+        "prerelease") else False
+    return major, minor, patch, is_prerelease
+
+
+def get_regex():
+    # Following REGEX is suggested on semver.org
+    # https://semver.org/#is-there-a-suggested-regular-expression-regex-to-check-a-semver-string
+    return re.compile(
+        r'^'
+        r'(?P<major>0|[1-9]\d*)'
+        r'\.'
+        r'(?P<minor>0|[1-9]\d*)'
+        r'\.'
+        r'(?P<patch>0|[1-9]\d*)'
+        r'(?:-(?P<prerelease>(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?'
+        r'(?:\+(?P<buildmetadata>[0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$')
+
+
+def get_major_release_version(major):
+    major += 1
+    minor = 0
+    patch = 0
+    return major, minor, patch
+
+
+def get_minor_release_version(major, minor):
+    minor += 1
+    patch = 0
+    return major, minor, patch
+
+
+def get_patch_release_version(major, minor, patch, is_prerelease):
+    if is_prerelease:
+        # Leave values as is because current version without `prerelease` is new patch version
+        return major, minor, patch
+    return major, minor, patch + 1
+
+
+if __name__ == "__main__":
+
+    if len(sys.argv) != 3:
+        print("First argument has to be requested version type. Second argument has to specify type of version bump.")
+        sys.exit()
+
+    version_type = get_arg(1)
+    release_type = get_arg(2)
+
+    current_version = version_retriever.get_current_version()
+
+    match version_type:
+        case "release-version":
+            new_version = get_release_version(release_type, current_version)
+        case "version-tag":
+            new_version = get_version_tag(release_type, current_version)
+        case "snapshot-version":
+            new_version = get_snapshot_version(release_type, current_version)
+        case _:
+            print(
+                "First arg has to be `release-version`, `version-tag` or `snapshot-version`.")
+            sys.exit()
+
+    print(new_version)