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comparison mx/mx_graal.py @ 16197:97a10428ff2c

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mx: added support for SYMLINK_GRAAL_JAR env var which controls use of symlinks instead of copying when installing graal.jar into the local JDK(s) (disabled by default)
author Doug Simon <doug.simon@oracle.com>
date Fri, 20 Jun 2014 15:23:12 +0200
parents 3b4690ddd92e
children 6140fd60abe9
comparison
equal deleted inserted replaced
16196:8bf243c2c87b 16197:97a10428ff2c
503 if exists(jdks): 503 if exists(jdks):
504 for e in os.listdir(jdks): 504 for e in os.listdir(jdks):
505 jreLibDir = join(jdks, e, 'jre', 'lib') 505 jreLibDir = join(jdks, e, 'jre', 'lib')
506 if exists(jreLibDir): 506 if exists(jreLibDir):
507 def install(srcJar, dstDir): 507 def install(srcJar, dstDir):
508 # do a copy and then a move to get atomic updating (on Unix)
509 name = os.path.basename(srcJar) 508 name = os.path.basename(srcJar)
510 fd, tmp = tempfile.mkstemp(suffix='', prefix=name, dir=dstDir)
511 shutil.copyfile(srcJar, tmp)
512 os.close(fd)
513 dstJar = join(dstDir, name) 509 dstJar = join(dstDir, name)
514 shutil.move(tmp, dstJar) 510 if mx.get_env('SYMLINK_GRAAL_JAR', None) == 'true':
515 os.chmod(dstJar, JDK_UNIX_PERMISSIONS) 511 # Using symlinks is much faster than copying but may
512 # cause issues if graal.jar is being updated while
513 # the VM is running.
514 if not os.path.islink(dstJar) or not os.path.realpath(dstJar) == srcJar:
515 if exists(dstJar):
516 os.remove(dstJar)
517 os.symlink(srcJar, dstJar)
518 else:
519 # do a copy and then a move to get atomic updating (on Unix)
520 fd, tmp = tempfile.mkstemp(suffix='', prefix=name, dir=dstDir)
521 shutil.copyfile(srcJar, tmp)
522 os.close(fd)
523 shutil.move(tmp, dstJar)
524 os.chmod(dstJar, JDK_UNIX_PERMISSIONS)
516 525
517 install(graalJar, jreLibDir) 526 install(graalJar, jreLibDir)
518 if graalDist.sourcesPath: 527 if graalDist.sourcesPath:
519 install(graalDist.sourcesPath, join(jdks, e)) 528 install(graalDist.sourcesPath, join(jdks, e))
520 529