waf/waflib/extras/cabal.py

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2012-09-23 10:19:44 +02:00
#!/usr/bin/env python
# encoding: utf-8
# Anton Feldmann, 2012
# "Base for cabal"
from waflib import Task, Utils
from waflib.TaskGen import extension
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from waflib.Utils import threading
from shutil import rmtree
lock = threading.Lock()
registering = False
def configure(self):
self.find_program('cabal', var='CABAL')
self.find_program('ghc-pkg', var='GHCPKG')
pkgconfd = self.bldnode.abspath() + '/package.conf.d'
self.env.PREFIX = self.bldnode.abspath() + '/dist'
self.env.PKGCONFD = pkgconfd
if self.root.find_node(pkgconfd + '/package.cache'):
self.msg('Using existing package database', pkgconfd, color='CYAN')
else:
pkgdir = self.root.find_dir(pkgconfd)
if pkgdir:
self.msg('Deleting corrupt package database', pkgdir.abspath(), color ='RED')
rmtree(pkgdir.abspath())
pkgdir = None
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self.cmd_and_log(self.env.GHCPKG + ['init', pkgconfd])
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self.msg('Created package database', pkgconfd, color = 'YELLOW' if pkgdir else 'GREEN')
@extension('.cabal')
def process_cabal(self, node):
out_dir_node = self.bld.root.find_dir(self.bld.out_dir)
package_node = node.change_ext('.package')
package_node = out_dir_node.find_or_declare(package_node.name)
build_node = node.parent.get_bld()
build_path = build_node.abspath()
config_node = build_node.find_or_declare('setup-config')
inplace_node = build_node.find_or_declare('package.conf.inplace')
config_task = self.create_task('cabal_configure', node)
config_task.cwd = node.parent.abspath()
config_task.depends_on = getattr(self, 'depends_on', '')
config_task.build_path = build_path
config_task.set_outputs(config_node)
build_task = self.create_task('cabal_build', config_node)
build_task.cwd = node.parent.abspath()
build_task.build_path = build_path
build_task.set_outputs(inplace_node)
copy_task = self.create_task('cabal_copy', inplace_node)
copy_task.cwd = node.parent.abspath()
copy_task.depends_on = getattr(self, 'depends_on', '')
copy_task.build_path = build_path
last_task = copy_task
task_list = [config_task, build_task, copy_task]
if (getattr(self, 'register', False)):
register_task = self.create_task('cabal_register', inplace_node)
register_task.cwd = node.parent.abspath()
register_task.set_run_after(copy_task)
register_task.build_path = build_path
pkgreg_task = self.create_task('ghcpkg_register', inplace_node)
pkgreg_task.cwd = node.parent.abspath()
pkgreg_task.set_run_after(register_task)
pkgreg_task.build_path = build_path
last_task = pkgreg_task
task_list += [register_task, pkgreg_task]
touch_task = self.create_task('cabal_touch', inplace_node)
touch_task.set_run_after(last_task)
touch_task.set_outputs(package_node)
touch_task.build_path = build_path
task_list += [touch_task]
return task_list
def get_all_src_deps(node):
hs_deps = node.ant_glob('**/*.hs')
hsc_deps = node.ant_glob('**/*.hsc')
lhs_deps = node.ant_glob('**/*.lhs')
c_deps = node.ant_glob('**/*.c')
cpp_deps = node.ant_glob('**/*.cpp')
proto_deps = node.ant_glob('**/*.proto')
return sum([hs_deps, hsc_deps, lhs_deps, c_deps, cpp_deps, proto_deps], [])
class Cabal(Task.Task):
def scan(self):
return (get_all_src_deps(self.generator.path), ())
class cabal_configure(Cabal):
run_str = '${CABAL} configure -v0 --prefix=${PREFIX} --global --user --package-db=${PKGCONFD} --builddir=${tsk.build_path}'
shell = True
def scan(self):
out_node = self.generator.bld.root.find_dir(self.generator.bld.out_dir)
deps = [out_node.find_or_declare(dep).change_ext('.package') for dep in Utils.to_list(self.depends_on)]
return (deps, ())
class cabal_build(Cabal):
run_str = '${CABAL} build -v1 --builddir=${tsk.build_path}/'
shell = True
class cabal_copy(Cabal):
run_str = '${CABAL} copy -v0 --builddir=${tsk.build_path}'
shell = True
class cabal_register(Cabal):
run_str = '${CABAL} register -v0 --gen-pkg-config=${tsk.build_path}/pkg.config --builddir=${tsk.build_path}'
shell = True
class ghcpkg_register(Cabal):
run_str = '${GHCPKG} update -v0 --global --user --package-conf=${PKGCONFD} ${tsk.build_path}/pkg.config'
shell = True
def runnable_status(self):
global lock, registering
val = False
lock.acquire()
val = registering
lock.release()
if val:
return Task.ASK_LATER
ret = Task.Task.runnable_status(self)
if ret == Task.RUN_ME:
lock.acquire()
registering = True
lock.release()
return ret
def post_run(self):
global lock, registering
lock.acquire()
registering = False
lock.release()
return Task.Task.post_run(self)
class cabal_touch(Cabal):
run_str = 'touch ${TGT}'