ci: fix version reading — use --print-version flag instead of inline Python

Author: theomonnom

.github/update_versions.py

@@ -1,5 +1,6 @@
 import pathlib
 import re
+import sys
 import click
 from packaging.version import Version
 
@@ -9,6 +10,12 @@
     "livekit-protocol": "livekit-protocol/livekit/protocol/version.py",
 }
 
+TAG_PREFIXES = {
+    "livekit": "rtc",
+    "livekit-api": "api",
+    "livekit-protocol": "protocol",
+}
+
 
 def _esc(*codes: int) -> str:
     return "\033[" + ";".join(str(c) for c in codes) + "m"
@@ -117,7 +124,22 @@ def do_prerelease(package: str, prerelease_type: str) -> None:
     default="patch",
     help="Type of version bump.",
 )
-def bump(package: str, pre: str, bump_type: str) -> None:
+@click.option(
+    "--print-version",
+    is_flag=True,
+    default=False,
+    help="Print current version and tag prefix, don't bump.",
+)
+def bump(package: str, pre: str, bump_type: str, print_version: bool) -> None:
+    if print_version:
+        vf = pathlib.Path(PACKAGES[package])
+        version = read_version(vf)
+        tag_prefix = TAG_PREFIXES[package]
+        # Output as key=value for easy parsing
+        print(f"version={version}")
+        print(f"tag_prefix={tag_prefix}")
+        return
+
     if pre == "none":
         do_bump(package, bump_type)
     else:

.github/workflows/publish.yml

@@ -40,12 +40,6 @@ permissions:
   pull-requests: write
   id-token: write
 
-env:
-  # Map PyPI package names to tag prefixes
-  # livekit -> rtc, livekit-api -> api, livekit-protocol -> protocol
-  TAG_PREFIX_MAP: '{"livekit":"rtc","livekit-api":"api","livekit-protocol":"protocol"}'
-  VERSION_FILE_MAP: '{"livekit":"livekit-rtc/livekit/rtc/version.py","livekit-api":"livekit-api/livekit/api/version.py","livekit-protocol":"livekit-protocol/livekit/protocol/version.py"}'
-
 jobs:
   # ── Step 1: Create a version bump PR ──────────────────────────
   bump:
@@ -109,17 +103,10 @@ jobs:
         env:
           INPUT_PACKAGE: ${{ inputs.package }}
         run: |
-          pkg="$INPUT_PACKAGE"
-          version_file=$(echo '${{ env.VERSION_FILE_MAP }}' | jq -r --arg pkg "$pkg" '.[$pkg]')
-          version=$(python -c "
-          import re, pathlib
-          m = re.search(r'__version__\s*=\s*[\"'\''](.*?)[\"'\'']', pathlib.Path('${version_file}').read_text())
-          print(m.group(1))
-          ")
-          tag_prefix=$(echo '${{ env.TAG_PREFIX_MAP }}' | jq -r --arg pkg "$pkg" '.[$pkg]')
+          eval "$(python .github/update_versions.py --package "$INPUT_PACKAGE" --print-version)"
           echo "version=$version" >> "$GITHUB_OUTPUT"
           echo "tag_prefix=$tag_prefix" >> "$GITHUB_OUTPUT"
-          echo "Package: $pkg, New version: $version, Tag: ${tag_prefix}-v${version}"
+          echo "Package: $INPUT_PACKAGE, New version: $version, Tag: ${tag_prefix}-v${version}"
 
       - name: Close existing release PRs for this package
         env: