Squashed 'waflib/' content from commit 391d285

git-subtree-dir: waflib
git-subtree-split: 391d2853c6c97efc90e466f187675e8155c866d6

1 files changed, 152 insertions, 0 deletions

diff --git a/extras/cabal.py b/extras/cabal.py
new file mode 100644
index 0000000..e10a0d1
--- /dev/null
+++ b/extras/cabal.py
@@ -0,0 +1,152 @@
+#!/usr/bin/env python

+# encoding: utf-8

+# Anton Feldmann, 2012

+# "Base for cabal"

+

+from waflib import Task, Utils

+from waflib.TaskGen import extension

+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

+

+        self.cmd_and_log(self.env.GHCPKG + ['init', pkgconfd])

+        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}'

+