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Python
Executable File

#!/usr/bin/env python3
#
# Update the Syncthing bundle based on the latest github release
# 1. Loads the latest tag name from github api
# 2. Parses the tag
# 3. Writes the syncthing/Info.plist
# 4. Update the syncthing/Scripts/syncthing-resource.sh
#
###
import os
import sys
import json
import semver
import fileinput
from urllib.request import urlopen
from string import Template
distVersion = 1
latest_url = "https://api.github.com/repos/syncthing/syncthing/releases/latest"
infoPlist = '../../syncthing/Info.plist'
infoPlistTmpl = '../../syncthing/Info.plist.tmpl'
syncthingResourceScript = "../../syncthing/Scripts/syncthing-resource.sh"
###
# Download latest tag from github
###
response = urlopen(latest_url)
body = response.read().decode("utf-8")
data = json.loads(body)
if 'tag_name' not in data:
raise ValueError("tag_name not present in latest_url")
import urllib.request
import json
import semver
def get_latest_v1_tag_name(repo_owner, repo_name, allow_prerelease: bool = False):
"""
Fetches the latest v1 release tag_name from a GitHub repository's releases.
Args:
repo_owner (str): The owner of the GitHub repository (e.g., 'syncthing').
repo_name (str): The name of the GitHub repository (e.g., 'syncthing').
Returns:
str or None: The tag_name of the latest v1 release, or None if not found.
"""
url = f"https://api.github.com/repos/{repo_owner}/{repo_name}/releases"
try:
with urllib.request.urlopen(url) as response:
if response.getcode() == 200:
data = json.loads(response.read().decode('utf-8'))
else:
print(f"Error fetching data: HTTP {response.getcode()}")
return None
except urllib.error.URLError as e:
print(f"Error connecting to GitHub API: {e.reason}")
return None
except json.JSONDecodeError:
print("Error decoding JSON response.")
return None
v1_releases = []
for release in data:
tag_name = release.get('tag_name')
prerelease = release.get('prerelease')
if tag_name:
try:
version = semver.Version.parse(tag_name.lstrip('v')) # Remove 'v' prefix if present
if allow_prerelease and version.major == 1 and version.prerelease:
v1_releases.append(version)
elif version.major == 1:
v1_releases.append(version)
except ValueError:
# Not a valid semver string, skip
continue
if not v1_releases:
return None
# Sort the prereleases to find the latest
latest_v1_release = max(v1_releases)
return f"v{latest_v1_release}" # Re-add the 'v' prefix for consistency
###
# Parse the tag version and generate CFBundleShortVersionString and CFBundleVersion
###
owner = "syncthing"
repo = "syncthing"
latest_tag = get_latest_v1_tag_name(owner, repo)
if latest_tag:
print(f"The latest v1 release tag_name for {owner}/{repo} is: {latest_tag}")
else:
print(f"No v1 release found for {owner}/{repo}.")
# Ugly hack because of https://github.com/python-semver/python-semver/issues/137
tag_name = latest_tag.replace('v', '')
version = semver.VersionInfo.parse(tag_name)
CFBundleShortVersionString = "{}-{:d}".format(
str(version),
distVersion)
CFBundleVersion = "{:d}{:03d}{:03d}{:02d}".format(
version.major,
version.minor,
version.patch,
distVersion)
###
# Update Info.plist from template
###
infoPlistTmplVars = {
'CFBundleShortVersionString' : CFBundleShortVersionString,
'CFBundleVersion' : CFBundleVersion
}
f = open(infoPlistTmpl, 'r')
tmpl = Template(f.read())
f.close()
result = tmpl.substitute(infoPlistTmplVars)
f = open(infoPlist, 'w')
f.write(result)
f.close()
###
# Update syncthing/Scripts/syncthing-resource.sh
###
for line in fileinput.input(syncthingResourceScript, inplace=True):
linePrefix = 'SYNCTHING_VERSION='
if line.startswith(linePrefix):
line = '{}"{}"\n'.format(linePrefix, str(version))
sys.stdout.write(line)
print(f"Found latest tag from github: {tag_name}")
print(f"CFBundleShortVersionString={CFBundleShortVersionString}")
print(f"CFBundleVersion={CFBundleVersion}")