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emar
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executable file
·56 lines (48 loc) · 1.6 KB
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#!/usr/bin/env python2
'''
emar - ar helper script
=======================
This script acts as a frontend replacement for ar. See emcc.
'''
import os, subprocess, sys
from tools import shared
DEBUG = os.environ.get('EMCC_DEBUG')
if DEBUG == "0":
DEBUG = None
newargs = [shared.LLVM_AR] + sys.argv[1:]
if DEBUG:
print >> sys.stderr, 'emar:', sys.argv, ' ==> ', newargs
if len(newargs) > 2:
to_delete = []
if 'r' in newargs[1]:
# we are adding files to the archive.
# find the .a; everything after it is an input file.
# we add a hash to each input, to make them unique as
# possible, as llvm-ar cannot extract duplicate names
# (and only the basename is used!)
i = 1
while i < len(newargs):
if newargs[i].endswith('.a'):
import hashlib, shutil
for j in range(i+1, len(newargs)):
orig_name = newargs[j]
full_name = os.path.abspath(orig_name)
dir_name = os.path.dirname(full_name)
base_name = os.path.basename(full_name)
h = hashlib.md5(full_name).hexdigest()[:8]
parts = base_name.split('.')
parts[0] += '_' + h
newname = '.'.join(parts)
full_newname = os.path.join(dir_name, newname)
if not os.path.exists(full_newname):
try: # it is ok to fail here, we just don't get hashing
shutil.copyfile(orig_name, full_newname)
newargs[j] = full_newname
to_delete.append(full_newname)
except:
pass
break
i += 1
subprocess.call(newargs)
for d in to_delete:
shared.try_delete(d)