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#!/usr/bin/env python3
import glob
import os
import os.path
import sys
import argparse
from textwrap import dedent
import subprocess
import re
cwd = os.getcwd()
parser = argparse.ArgumentParser()
parser.add_argument('--validate', action='store_true', help='Run in validate mode')
parser.add_argument('--hadrian', action='store_true', help='Do not assume the make base build system')
args = parser.parse_args()
# Packages whose libraries aren't in the submodule root
EXCEPTIONS = {
'libraries/containers/': 'libraries/containers/containers/'
}
def print_err(s):
print(dedent(s), file=sys.stderr)
def die(mesg):
print_err(mesg)
sys.exit(1)
def check_boot_packages():
# Check that we have all boot packages.
for l in open('packages', 'r'):
if l.startswith('#'):
continue
parts = [part for part in l.split(' ') if part]
if len(parts) != 4:
die("Error: Bad line in packages file: " + l)
dir_ = parts[0]
tag = parts[1]
# If tag is not "-" then it is an optional repository, so its
# absence isn't an error.
if tag == '-':
# We would like to just check for a .git directory here,
# but in an lndir tree we avoid making .git directories,
# so it doesn't exist. We therefore require that every repo
# has a LICENSE file instead.
license_path = os.path.join(EXCEPTIONS.get(dir_+'/', dir_), 'LICENSE')
if not os.path.isfile(license_path):
die("""\
Error: %s doesn't exist
Maybe you haven't run 'git submodule update --init'?
""" % license_path)
# Create libraries/*/{ghc.mk,GNUmakefile}
def boot_pkgs():
library_dirs = []
for package in glob.glob("libraries/*/"):
packages_file = os.path.join(package, 'ghc-packages')
print(package)
if os.path.isfile(packages_file):
for subpkg in open(packages_file, 'r'):
library_dirs.append(os.path.join(package, subpkg.strip()))
elif package in EXCEPTIONS:
library_dirs.append(EXCEPTIONS[package])
else:
library_dirs.append(package)
for package in library_dirs:
if package[-1] == '/':
# drop trailing '/'
package = package[:-1]
dir_ = os.path.relpath(package, 'libraries')
cabals = glob.glob(os.path.join(package, '*.cabal.in'))
if len(cabals) == 0:
cabals = glob.glob(os.path.join(package, '*.cabal'))
if len(cabals) > 1:
die('Too many .cabal files in %s' % package)
elif len(cabals) == 1:
cabal = cabals[0]
if os.path.isfile(cabal):
# strip both .cabal and .in
pkg = os.path.splitext(os.path.splitext(os.path.basename(cabal))[0])[0]
top = os.path.join(*['..'] * len(os.path.normpath(package).split(os.path.sep)))
ghc_mk = os.path.join(package, 'ghc.mk')
if os.path.exists(ghc_mk):
print('Skipping %s which already exists' % ghc_mk)
continue
print('Creating %s' % ghc_mk)
with open(ghc_mk, 'w') as f:
f.write(dedent(
"""\
{package}_PACKAGE = {pkg}
{package}_dist-install_GROUP = libraries
$(if $(filter {dir},$(PACKAGES_STAGE0)),$(eval $(call build-package,{package},dist-boot,0)))
$(if $(filter {dir},$(PACKAGES_STAGE1)),$(eval $(call build-package,{package},dist-install,1)))
$(if $(filter {dir},$(PACKAGES_STAGE2)),$(eval $(call build-package,{package},dist-install,2)))
""".format(package = package,
pkg = pkg,
dir = dir_)))
makefile = os.path.join(package, 'GNUmakefile')
with open(makefile, 'w') as f:
f.write(dedent(
"""\
dir = {package}
TOP = {top}
include $(TOP)/mk/sub-makefile.mk
FAST_MAKE_OPTS += stage=0
""".format(package = package, top = top)
))
def autoreconf():
# Run autoreconf on everything that needs it.
processes = {}
if os.name == 'nt':
# Get the normalized ACLOCAL_PATH for Windows
# This is necessary since on Windows this will be a Windows
# path, which autoreconf doesn't know doesn't know how to handle.
ac_local = os.getenv('ACLOCAL_PATH', '')
ac_local_arg = re.sub(r';', r':', ac_local)
ac_local_arg = re.sub(r'\\', r'/', ac_local_arg)
ac_local_arg = re.sub(r'(\w):/', r'/\1/', ac_local_arg)
reconf_cmd = 'ACLOCAL_PATH=%s autoreconf' % ac_local_arg
else:
reconf_cmd = 'autoreconf'
for dir_ in ['.'] + glob.glob('libraries/*/'):
if os.path.isfile(os.path.join(dir_, 'configure.ac')):
print("Booting %s" % dir_)
processes[dir_] = subprocess.Popen(['sh', '-c', reconf_cmd], cwd=dir_)
# Wait for all child processes to finish.
fail = False
for k,v in processes.items():
code = v.wait()
if code != 0:
print_err('autoreconf in %s failed with exit code %d' % (k, code))
fail = True
if fail:
sys.exit(1)
def check_build_mk():
if not args.validate and not os.path.isfile("mk/build.mk"):
print(dedent(
"""
WARNING: You don't have a mk/build.mk file.
By default a standard GHC build will be done, which uses optimisation
and builds the profiling libraries. This will take a long time, so may
not be what you want if you are developing GHC or the libraries, rather
than simply building it to use it.
For information on creating a mk/build.mk file, please see:
https://gitlab.haskell.org/ghc/ghc/wikis/building/using#build-configuration
"""))
check_boot_packages()
if not args.hadrian:
boot_pkgs()
autoreconf()
if not args.hadrian:
check_build_mk()
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