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"""
Generate header file with macros defining MicroPython version info.
This script works with Python 2.6, 2.7, 3.3 and 3.4.
"""
from __future__ import print_function
import sys
import os
import datetime
import subprocess
def get_version_info_from_git():
# Python 2.6 doesn't have check_output, so check for that
try:
subprocess.check_output
subprocess.check_call
except AttributeError:
return None
# Note: git describe doesn't work if no tag is available
try:
git_tag = subprocess.check_output(["git", "describe", "--dirty", "--always", "--tags"], stderr=subprocess.STDOUT, universal_newlines=True).strip()
except subprocess.CalledProcessError as er:
if er.returncode == 128:
# git exit code of 128 means no repository found
return None
git_tag = ""
except OSError:
return None
try:
git_hash = subprocess.check_output(["git", "rev-parse", "--short", "HEAD"], stderr=subprocess.STDOUT, universal_newlines=True).strip()
except subprocess.CalledProcessError:
git_hash = "unknown"
except OSError:
return None
try:
# Check if there are any modified files.
subprocess.check_call(["git", "diff", "--no-ext-diff", "--quiet", "--exit-code"], stderr=subprocess.STDOUT)
# Check if there are any staged files.
subprocess.check_call(["git", "diff-index", "--cached", "--quiet", "HEAD", "--"], stderr=subprocess.STDOUT)
except subprocess.CalledProcessError:
git_hash += "-dirty"
except OSError:
return None
# Try to extract MicroPython version from git tag
ver = git_tag.split("-")[0].split(".")
return git_tag, git_hash, ver
def get_version_info_from_docs_conf():
with open(os.path.join(os.path.dirname(sys.argv[0]), "..", "conf.py")) as f:
for line in f:
if line.startswith("version = release = '"):
ver = line.strip().split(" = ")[2].strip("'")
git_tag = "v" + ver
ver = ver.split(".")
if len(ver) == 2:
ver.append("0")
return git_tag, "<no hash>", ver
return None
def make_version_header(filename):
# Get version info using git, with fallback to docs/conf.py
info = get_version_info_from_git()
if info is None:
info = get_version_info_from_docs_conf()
git_tag, git_hash, ver = info
if len(ver) < 3:
ver = ("0", "0", "0")
version_string = git_hash
else:
version_string = ".".join(ver)
# Generate the file with the git and version info
file_data = """\
// This file was generated by py/makeversionhdr.py
#define MICROPY_GIT_TAG "%s"
#define MICROPY_GIT_HASH "%s"
#define MICROPY_BUILD_DATE "%s"
#define MICROPY_VERSION_MAJOR (%s)
#define MICROPY_VERSION_MINOR (%s)
#define MICROPY_VERSION_MICRO (%s)
#define MICROPY_VERSION_STRING "%s"
#define MICROPY_FULL_VERSION_INFO ("Adafruit CircuitPython " MICROPY_GIT_TAG " on " MICROPY_BUILD_DATE "; " MICROPY_HW_BOARD_NAME " with " MICROPY_HW_MCU_NAME)
""" % (git_tag, git_hash, datetime.date.today().strftime("%Y-%m-%d"),
ver[0].replace('v', ''), ver[1], ver[2], version_string)
# Check if the file contents changed from last time
write_file = True
if os.path.isfile(filename):
with open(filename, 'r') as f:
existing_data = f.read()
if existing_data == file_data:
write_file = False
# Only write the file if we need to
if write_file:
with open(filename, 'w') as f:
f.write(file_data)
if __name__ == "__main__":
make_version_header(sys.argv[1])