source-engine/scripts/waifulib/strip_on_install.py

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2021-04-28 05:36:34 +00:00
#! /usr/bin/env python
# Modified: Alibek Omarov <a1ba.omarov@gmail.com>
# Originally taken from Thomas Nagy's blogpost
"""
Strip executables upon installation
"""
import shutil, os
from waflib import Build, Utils, Context, Errors, Logs
def options(opt):
grp = opt.option_groups['install/uninstall options']
grp.add_option('--strip', dest='strip', action='store_true', default=False,
help='strip binaries. You must pass this flag to install command [default: %default]')
grp.add_option('--strip-to-file', dest='strip_to_file', action='store_true', default=False,
help='strip debug information to file *.debug. Implies --strip. You must pass this flag to install command [default: %default]')
def configure(conf):
if conf.env.DEST_BINFMT in ['elf', 'mac-o']:
conf.find_program('strip', var='STRIP')
if not conf.env.STRIPFLAGS:
conf.env.STRIPFLAGS = os.environ['STRIPFLAGS'] if 'STRIPFLAGS' in os.environ else []
# a1ba: I am lazy to add `export OBJCOPY=` everywhere in my scripts
# so just try to deduce which objcopy we have
try:
k = conf.env.STRIP[0].rfind('-')
if k >= 0:
objcopy_name = conf.env.STRIP[0][:k] + '-objcopy'
try: conf.find_program(objcopy_name, var='OBJCOPY')
except: conf.find_program('objcopy', var='OBJCOPY')
else:
conf.find_program('objcopy', var='OBJCOPY')
except:
conf.find_program('objcopy', var='OBJCOPY')
def copy_fun(self, src, tgt):
inst_copy_fun(self, src, tgt)
if not self.generator.bld.options.strip and not self.generator.bld.options.strip_to_file:
return
if self.env.DEST_BINFMT not in ['elf', 'mac-o']: # don't strip unknown formats or PE
return
if getattr(self.generator, 'link_task', None) and self.generator.link_task.outputs[0] in self.inputs:
tgt_debug = tgt + '.debug'
strip_cmd = self.env.STRIP + self.env.STRIPFLAGS + [tgt]
ocopy_cmd = self.env.OBJCOPY + ['--only-keep-debug', tgt, tgt_debug]
ocopy_debuglink_cmd = self.env.OBJCOPY + ['--add-gnu-debuglink=%s' % tgt_debug, tgt]
c1 = Logs.colors.NORMAL
c2 = Logs.colors.CYAN
c3 = Logs.colors.YELLOW
c4 = Logs.colors.BLUE
try:
if self.generator.bld.options.strip_to_file:
self.generator.bld.cmd_and_log(ocopy_cmd, output=Context.BOTH, quiet=Context.BOTH)
if not self.generator.bld.progress_bar:
Logs.info('%s+ objcopy --only-keep-debug %s%s%s %s%s%s', c1, c4, tgt, c1, c3, tgt_debug, c1)
self.generator.bld.cmd_and_log(strip_cmd, output=Context.BOTH, quiet=Context.BOTH)
if not self.generator.bld.progress_bar:
f1 = os.path.getsize(src)
f2 = os.path.getsize(tgt)
Logs.info('%s+ strip %s%s%s (%d bytes change)', c1, c2, tgt, c1, f2 - f1)
if self.generator.bld.options.strip_to_file:
self.generator.bld.cmd_and_log(ocopy_debuglink_cmd, output=Context.BOTH, quiet=Context.BOTH)
if not self.generator.bld.progress_bar:
Logs.info('%s+ objcopy --add-gnu-debuglink=%s%s%s %s%s%s', c1, c3, tgt_debug, c1, c2, tgt, c1)
except Errors.WafError as e:
print(e.stdout, e.stderr)
inst_copy_fun = Build.inst.copy_fun
Build.inst.copy_fun = copy_fun