version.py - mozsearch

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#!/usr/bin/env python3

# cairo version.py

# Extracts the version from cairo-version.h for the meson build files.

import os

import re

import sys

MAJOR_RE = re.compile(

    r'^\s*#\s*define\s+CAIRO_VERSION_MAJOR\s+(?P<number>[0-9]+)\s*$',

    re.UNICODE)

MINOR_RE = re.compile(

    r'^\s*#\s*define\s+CAIRO_VERSION_MINOR\s+(?P<number>[0-9]+)\s*$',

    re.UNICODE)

MICRO_RE = re.compile(

    r'^\s*#\s*define\s+CAIRO_VERSION_MICRO\s+(?P<number>[0-9]+)\s*$',

    re.UNICODE)

version_major = None

version_minor = None

version_micro = None

srcroot = os.path.dirname(__file__)

version_h = os.path.join(srcroot, "src", "cairo-version.h")

with open(version_h, "r", encoding="utf-8") as f:

    for line in f:

        res = MAJOR_RE.match(line)

        if res:

            assert version_major is None

            version_major = res.group('number')

            continue

        res = MINOR_RE.match(line)

        if res:

            assert version_minor is None

            version_minor = res.group('number')

            continue

        res = MICRO_RE.match(line)

        if res:

            assert version_micro is None

            version_micro = res.group('number')

            continue

if not (version_major and version_minor and version_micro):

    print(f"ERROR: Could not extract version from cairo-version.h in {srcroot}", file=sys.stderr)  # noqa

    sys.exit(-1)

print(f"{version_major}.{version_minor}.{version_micro}")