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tools/minify-js: Avoid shelling out for mkdir, cp.

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Signed-off-by: Anders Kaseorg <andersk@mit.edu>
This commit is contained in:
Anders Kaseorg
2018-07-18 17:50:16 -04:00
committed by Tim Abbott
parent 2d12b5b3d9
commit 07f5b81406
1 changed files with 4 additions and 2 deletions
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6
tools/minify-js
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@@ -7,6 +7,7 @@ import os
import subprocess import subprocess
import argparse import argparse
import sys import sys
import shutil
parser = argparse.ArgumentParser() parser = argparse.ArgumentParser()
parser.add_argument('--prev-deploy', metavar='DIR', parser.add_argument('--prev-deploy', metavar='DIR',
@@ -97,7 +98,8 @@ if not os.path.exists(CLOSURE_BINARY):
# Where to put minified JS and source maps # Where to put minified JS and source maps
MIN_DIR = os.path.join(STATIC_PATH, 'min/') MIN_DIR = os.path.join(STATIC_PATH, 'min/')
MAP_DIR = os.path.join(STATIC_PATH, 'source-map/') MAP_DIR = os.path.join(STATIC_PATH, 'source-map/')
subprocess.check_call(['mkdir', '-p', MIN_DIR, MAP_DIR]) os.makedirs(MIN_DIR, exist_ok=True)
os.makedirs(MAP_DIR, exist_ok=True)
for js_group_filespec_pair in JS_SPECS.items(): for js_group_filespec_pair in JS_SPECS.items():
# JS_SPECS is not typed, so forcefully type keys and values being read from JS_SPECS # JS_SPECS is not typed, so forcefully type keys and values being read from JS_SPECS
@@ -124,7 +126,7 @@ for js_group_filespec_pair in JS_SPECS.items():
src = os.path.join(prev_deploy, dest) src = os.path.join(prev_deploy, dest)
os.path.getsize(src) # Just to throw error if it doesn't exist. os.path.getsize(src) # Just to throw error if it doesn't exist.
if os.path.abspath(src) != os.path.abspath(dest): if os.path.abspath(src) != os.path.abspath(dest):
subprocess.check_call(['cp', src, dest]) shutil.copyfile(src, dest)
continue # Copy succeeded, so go on to next file. continue # Copy succeeded, so go on to next file.
except (subprocess.CalledProcessError, OSError): except (subprocess.CalledProcessError, OSError):
pass # Copy failed, so fall through to minification instead. pass # Copy failed, so fall through to minification instead.