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#!/usr/bin/env python
import sys, os, errno, re, subprocess
DEFAULT_TAG = [0, 0, 0]
DEFAULT_REV = 'unknown'
def is_git_repo():
try:
subprocess.check_output("git rev-parse", shell=True)
return True
except subprocess.CalledProcessError as exc:
return False
def parse_tag(raw_tag):
return map(int, re.sub("[^0-9.]", "", raw_tag).split('.'))
def parse_rev(raw_rev):
return raw_rev[0:8]
def mkdir_p(path):
try:
os.makedirs(path)
except OSError as exc: # Python >2.5
if exc.errno == errno.EEXIST and os.path.isdir(path):
pass
else: raise
output_dir = sys.argv[1]
if is_git_repo():
raw_tag = subprocess.check_output("git describe --tags --always --abbrev=0", shell=True)
raw_rev = subprocess.check_output("git rev-parse HEAD", shell=True)
# When they're identical, the "git describe" can't find a tag and reports the rev instead.
if raw_tag == raw_rev:
tag = DEFAULT_TAG
rev = parse_rev(raw_rev)
else:
tag = parse_tag(raw_tag)
rev = parse_rev(raw_rev)
else:
tag = DEFAULT_TAG
rev = DEFAULT_REV
header = """// NOTE: DO NOT CHANGE THIS FILE. IT IS AUTOMATICALLY GENERATED.
#pragma once
#define MBGL_VERSION 0x{major:02x}{minor:02x}{patch:02x}
#define MBGL_VERSION_STRING "{major}.{minor}.{patch}"
#define MBGL_VERSION_MAJOR {major}
#define MBGL_VERSION_MINOR {minor}
#define MBGL_VERSION_PATCH {patch}
#define MBGL_VERSION_REV "{rev}"
namespace mbgl {{
namespace version {{
extern const int major, minor, patch;
extern const char *revision;
extern const char *string;
extern const unsigned int number;
}} // namespace mbgl
}} // namespace version
""".format(
major = tag[0],
minor = tag[1],
patch = tag[2],
rev = rev
)
header_path = os.path.join(output_dir, 'include/mbgl/util/version.hpp')
mkdir_p(os.path.dirname(header_path))
with open(header_path, 'w') as f: f.write(header)
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