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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 argparse
import sys
import os
import datetime
import subprocess
def get_version_info_from_git(repo_path):
# 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", "--tags", "--dirty", "--always", "--match", "v[1-9].*"],
cwd=repo_path,
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"],
cwd=repo_path,
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"],
cwd=repo_path,
stderr=subprocess.STDOUT,
)
# Check if there are any staged files.
subprocess.check_call(
["git", "diff-index", "--cached", "--quiet", "HEAD", "--"],
cwd=repo_path,
stderr=subprocess.STDOUT,
)
except subprocess.CalledProcessError:
git_hash += "-dirty"
except OSError:
return None
return git_tag, git_hash
def get_version_info_from_mpconfig(repo_path):
with open(os.path.join(repo_path, "py", "mpconfig.h")) as f:
for line in f:
if line.startswith("#define MICROPY_VERSION_MAJOR "):
ver_major = int(line.strip().split()[2])
elif line.startswith("#define MICROPY_VERSION_MINOR "):
ver_minor = int(line.strip().split()[2])
elif line.startswith("#define MICROPY_VERSION_MICRO "):
ver_micro = int(line.strip().split()[2])
git_tag = "v%d.%d.%d" % (ver_major, ver_minor, ver_micro)
return git_tag, "<no hash>"
return None
def make_version_header(repo_path, filename):
info = None
if "MICROPY_GIT_TAG" in os.environ:
info = [os.environ["MICROPY_GIT_TAG"], os.environ["MICROPY_GIT_HASH"]]
if info is None:
info = get_version_info_from_git(repo_path)
if info is None:
info = get_version_info_from_mpconfig(repo_path)
git_tag, git_hash = info
build_date = datetime.date.today()
if "SOURCE_DATE_EPOCH" in os.environ:
build_date = datetime.datetime.utcfromtimestamp(
int(os.environ["SOURCE_DATE_EPOCH"])
).date()
# 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"
""" % (
git_tag,
git_hash,
build_date.strftime("%Y-%m-%d"),
)
# 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:
print("GEN %s" % filename)
with open(filename, "w") as f:
f.write(file_data)
def main():
parser = argparse.ArgumentParser()
# makeversionheader.py lives in repo/py, so default repo_path to the
# parent of sys.argv[0]'s directory.
parser.add_argument(
"-r",
"--repo-path",
default=os.path.join(os.path.dirname(sys.argv[0]), ".."),
help="path to MicroPython Git repo to query for version",
)
parser.add_argument("dest", nargs=1, help="output file path")
args = parser.parse_args()
make_version_header(args.repo_path, args.dest[0])
if __name__ == "__main__":
main()
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