#!/usr/bin/env python
# encoding: utf-8
# Thomas Nagy, 2005 (ita)
"""
Dependency tree holder
The class Build holds all the info related to a build:
* file system representation (tree of Node instances)
* various cached objects (task signatures, file scan results, ..)
There is only one Build object at a time (bld singleton)
"""
import os, sys, errno, re, glob, gc, datetime, shutil
try: import cPickle
except: import pickle as cPickle
import Runner, TaskGen, Node, Scripting, Utils, Environment, Task, Logs, Options
from Logs import debug,error,info
from Constants import *
SAVED_ATTRS = 'root srcnode bldnode node_sigs node_deps raw_deps task_sigs id_nodes'.split()
"Build class members to save"
bld = None
"singleton - safe to use when Waf is not used as a library"
class BuildError(Utils.WafError):
def __init__(self, b=None, t=[]):
self.bld = b
self.tasks = t
self.ret = 1
Utils.WafError.__init__(self, self.format_error())
def format_error(self):
lst = ['Build failed:']
for tsk in self.tasks:
txt = tsk.format_error()
if txt: lst.append(txt)
sep = ' '
if len(lst) > 2:
sep = '\n'
return sep.join(lst)
def group_method(fun):
"""
sets a build context method to execute after the current group has finished executing
this is useful for installing build files:
* calling install_files/install_as will fail if called too early
* people do not want to define install method in their task classes
TODO: try it
"""
def f(*k, **kw):
if not k[0].is_install:
return False
postpone = True
if 'postpone' in kw:
postpone = kw['postpone']
del kw['postpone']
# TODO waf 1.6 in theory there should be no reference to the TaskManager internals here
if postpone:
m = k[0].task_manager
if not m.groups: m.add_group()
m.groups[m.current_group].post_funs.append((fun, k, kw))
if not 'cwd' in kw:
kw['cwd'] = k[0].path
else:
fun(*k, **kw)
return f
class BuildContext(Utils.Context):
"holds the dependency tree"
def __init__(self):
# not a singleton, but provided for compatibility
global bld
bld = self
self.task_manager = Task.TaskManager()
# instead of hashing the nodes, we assign them a unique id when they are created
self.id_nodes = 0
self.idx = {}
# map names to environments, the 'default' must be defined
self.all_envs = {}
# ======================================= #
# code for reading the scripts
# project build directory - do not reset() from load_dirs()
self.bdir = ''
# the current directory from which the code is run
# the folder changes everytime a wscript is read
self.path = None
# Manual dependencies.
self.deps_man = Utils.DefaultDict(list)
# ======================================= #
# cache variables
# local cache for absolute paths - cache_node_abspath[variant][node]
self.cache_node_abspath = {}
# list of folders that are already scanned
# so that we do not need to stat them one more time
self.cache_scanned_folders = {}
# list of targets to uninstall for removing the empty folders after uninstalling
self.uninstall = []
# ======================================= #
# tasks and objects
# build dir variants (release, debug, ..)
for v in 'cache_node_abspath task_sigs node_deps raw_deps node_sigs'.split():
var = {}
setattr(self, v, var)
self.cache_dir_contents = {}
self.all_task_gen = []
self.task_gen_cache_names = {}
self.cache_sig_vars = {}
self.log = None
self.root = None
self.srcnode = None
self.bldnode = None
# bind the build context to the nodes in use
# this means better encapsulation and no build context singleton
class node_class(Node.Node):
pass
self.node_class = node_class
self.node_class.__module__ = "Node"
self.node_class.__name__ = "Nodu"
self.node_class.bld = self
self.is_install = None
def __copy__(self):
"nodes are not supposed to be copied"
raise Utils.WafError('build contexts are not supposed to be cloned')
def load(self):
"load the cache from the disk"
try:
env = Environment.Environment(os.path.join(self.cachedir, 'build.config.py'))
except (IOError, OSError):
pass
else:
if env['version'] < HEXVERSION:
raise Utils.WafError('Version mismatch! reconfigure the project')
for t in env['tools']:
self.setup(**t)
try:
gc.disable()
f = data = None
Node.Nodu = self.node_class
try:
f = open(os.path.join(self.bdir, DBFILE), 'rb')
except (IOError, EOFError):
# handle missing file/empty file
pass
try:
if f: data = cPickle.load(f)
except AttributeError:
# handle file of an old Waf version
# that has an attribute which no longer exist
# (e.g. AttributeError: 'module' object has no attribute 'BuildDTO')
if Logs.verbose > 1: raise
if data:
for x in SAVED_ATTRS: setattr(self, x, data[x])
else:
debug('build: Build cache loading failed')
finally:
if f: f.close()
gc.enable()
def save(self):
"store the cache on disk, see self.load"
gc.disable()
self.root.__class__.bld = None
# some people are very nervous with ctrl+c so we have to make a temporary file
Node.Nodu = self.node_class
db = os.path.join(self.bdir, DBFILE)
file = open(db + '.tmp', 'wb')
data = {}
for x in SAVED_ATTRS: data[x] = getattr(self, x)
cPickle.dump(data, file, -1)
file.close()
# do not use shutil.move
try: os.unlink(db)
except OSError: pass
os.rename(db + '.tmp', db)
self.root.__class__.bld = self
gc.enable()
# ======================================= #
def clean(self):
debug('build: clean called')
# does not clean files created during the configuration
precious = set([])
for env in self.all_envs.values():
for x in env[CFG_FILES]:
node = self.srcnode.find_resource(x)
if node:
precious.add(node.id)
def clean_rec(node):
for x in list(node.childs.keys()):
nd = node.childs[x]
tp = nd.id & 3
if tp == Node.DIR:
clean_rec(nd)
elif tp == Node.BUILD:
if nd.id in precious: continue
for env in self.all_envs.values():
try: os.remove(nd.abspath(env))
except OSError: pass
node.childs.__delitem__(x)
clean_rec(self.srcnode)
for v in 'node_sigs node_deps task_sigs raw_deps cache_node_abspath'.split():
setattr(self, v, {})
def compile(self):
"""The cache file is not written if nothing was build at all (build is up to date)"""
debug('build: compile called')
"""
import cProfile, pstats
cProfile.run("import Build\nBuild.bld.flush()", 'profi.txt')
p = pstats.Stats('profi.txt')
p.sort_stats('cumulative').print_stats(80)
"""
self.flush()
#"""
self.generator = Runner.Parallel(self, Options.options.jobs)
def dw(on=True):
if Options.options.progress_bar:
if on: sys.stderr.write(Logs.colors.cursor_on)
else: sys.stderr.write(Logs.colors.cursor_off)
debug('build: executor starting')
back = os.getcwd()
os.chdir(self.bldnode.abspath())
try:
try:
dw(on=False)
self.generator.start()
except KeyboardInterrupt:
dw()
if Runner.TaskConsumer.consumers:
self.save()
raise
except Exception:
dw()
# do not store anything, for something bad happened
raise
else:
dw()
if Runner.TaskConsumer.consumers:
self.save()
if self.generator.error:
raise BuildError(self, self.task_manager.tasks_done)
finally:
os.chdir(back)
def install(self):
"this function is called for both install and uninstall"
debug('build: install called')
self.flush()
# remove empty folders after uninstalling
if self.is_install < 0:
lst = []
for x in self.uninstall:
dir = os.path.dirname(x)
if not dir in lst: lst.append(dir)
lst.sort()
lst.reverse()
nlst = []
for y in lst:
x = y
while len(x) > 4:
if not x in nlst: nlst.append(x)
x = os.path.dirname(x)
nlst.sort()
nlst.reverse()
for x in nlst:
try: os.rmdir(x)
except OSError: pass
def new_task_gen(self, *k, **kw):
if self.task_gen_cache_names:
self.task_gen_cache_names = {}
kw['bld'] = self
if len(k) == 0:
ret = TaskGen.task_gen(*k, **kw)
else:
cls_name = k[0]
try: cls = TaskGen.task_gen.classes[cls_name]
except KeyError: raise Utils.WscriptError('%s is not a valid task generator -> %s' %
(cls_name, [x for x in TaskGen.task_gen.classes]))
ret = cls(*k, **kw)
return ret
def __call__(self, *k, **kw):
if self.task_gen_cache_names:
self.task_gen_cache_names = {}
kw['bld'] = self
return TaskGen.task_gen(*k, **kw)
def load_envs(self):
try:
lst = Utils.listdir(self.cachedir)
except OSError, e:
if e.errno == errno.ENOENT:
raise Utils.WafError('The project was not configured: run "waf configure" first!')
else:
raise
if not lst:
raise Utils.WafError('The cache directory is empty: reconfigure the project')
for file in lst:
if file.endswith(CACHE_SUFFIX):
env = Environment.Environment(os.path.join(self.cachedir, file))
name = file[:-len(CACHE_SUFFIX)]
self.all_envs[name] = env
self.init_variants()
for env in self.all_envs.values():
for f in env[CFG_FILES]:
newnode = self.path.find_or_declare(f)
try:
hash = Utils.h_file(newnode.abspath(env))
except (IOError, AttributeError):
error("cannot find "+f)
hash = SIG_NIL
self.node_sigs[env.variant()][newnode.id] = hash
# TODO: hmmm, these nodes are removed from the tree when calling rescan()
self.bldnode = self.root.find_dir(self.bldnode.abspath())
self.path = self.srcnode = self.root.find_dir(self.srcnode.abspath())
self.cwd = self.bldnode.abspath()
def setup(self, tool, tooldir=None, funs=None):
"setup tools for build process"
if isinstance(tool, list):
for i in tool: self.setup(i, tooldir)
return
if not tooldir: tooldir = Options.tooldir
module = Utils.load_tool(tool, tooldir)
if hasattr(module, "setup"): module.setup(self)
def init_variants(self):
debug('build: init variants')
lstvariants = []
for env in self.all_envs.values():
if not env.variant() in lstvariants:
lstvariants.append(env.variant())
self.lst_variants = lstvariants
debug('build: list of variants is %r', lstvariants)
for name in lstvariants+[0]:
for v in 'node_sigs cache_node_abspath'.split():
var = getattr(self, v)
if not name in var:
var[name] = {}
# ======================================= #
# node and folder handling
# this should be the main entry point
def load_dirs(self, srcdir, blddir, load_cache=1):
"this functions should be the start of everything"
assert(os.path.isabs(srcdir))
assert(os.path.isabs(blddir))
self.cachedir = os.path.join(blddir, CACHE_DIR)
if srcdir == blddir:
raise Utils.WafError("build dir must be different from srcdir: %s <-> %s " % (srcdir, blddir))
self.bdir = blddir
# try to load the cache file, if it does not exist, nothing happens
self.load()
if not self.root:
Node.Nodu = self.node_class
self.root = Node.Nodu('', None, Node.DIR)
if not self.srcnode:
self.srcnode = self.root.ensure_dir_node_from_path(srcdir)
debug('build: srcnode is %s and srcdir %s', self.srcnode.name, srcdir)
self.path = self.srcnode
# create this build dir if necessary
try: os.makedirs(blddir)
except OSError: pass
if not self.bldnode:
self.bldnode = self.root.ensure_dir_node_from_path(blddir)
self.init_variants()
def rescan(self, src_dir_node):
"""
look the contents of a (folder)node and update its list of childs
The intent is to perform the following steps
* remove the nodes for the files that have disappeared
* remove the signatures for the build files that have disappeared
* cache the results of os.listdir
* create the build folder equivalent (mkdir) for each variant
src/bar -> build/default/src/bar, build/release/src/bar
when a folder in the source directory is removed, we do not check recursively
to remove the unused nodes. To do that, call 'waf clean' and build again.
"""
# do not rescan over and over again
# TODO use a single variable in waf 1.6
if self.cache_scanned_folders.get(src_dir_node.id, None): return
self.cache_scanned_folders[src_dir_node.id] = True
# TODO remove in waf 1.6
if hasattr(self, 'repository'): self.repository(src_dir_node)
if not src_dir_node.name and sys.platform == 'win32':
# the root has no name, contains drive letters, and cannot be listed
return
# first, take the case of the source directory
parent_path = src_dir_node.abspath()
try:
lst = set(Utils.listdir(parent_path))
except OSError:
lst = set([])
# TODO move this at the bottom
self.cache_dir_contents[src_dir_node.id] = lst
# hash the existing source files, remove the others
cache = self.node_sigs[0]
for x in src_dir_node.childs.values():
if x.id & 3 != Node.FILE: continue
if x.name in lst:
try:
cache[x.id] = Utils.h_file(x.abspath())
except IOError:
raise Utils.WafError('The file %s is not readable or has become a dir' % x.abspath())
else:
try: del cache[x.id]
except KeyError: pass
del src_dir_node.childs[x.name]
# first obtain the differences between srcnode and src_dir_node
h1 = self.srcnode.height()
h2 = src_dir_node.height()
lst = []
child = src_dir_node
while h2 > h1:
lst.append(child.name)
child = child.parent
h2 -= 1
lst.reverse()
# list the files in the build dirs
try:
for variant in self.lst_variants:
sub_path = os.path.join(self.bldnode.abspath(), variant , *lst)
self.listdir_bld(src_dir_node, sub_path, variant)
except OSError:
# listdir failed, remove the build node signatures for all variants
for node in src_dir_node.childs.values():
if node.id & 3 != Node.BUILD:
continue
for dct in self.node_sigs.values():
if node.id in dct:
dct.__delitem__(node.id)
# the policy is to avoid removing nodes representing directories
src_dir_node.childs.__delitem__(node.name)
for variant in self.lst_variants:
sub_path = os.path.join(self.bldnode.abspath(), variant , *lst)
try:
os.makedirs(sub_path)
except OSError:
pass
# ======================================= #
def listdir_src(self, parent_node):
"""do not use, kept for compatibility"""
pass
def remove_node(self, node):
"""do not use, kept for compatibility"""
pass
def listdir_bld(self, parent_node, path, variant):
"""in this method we do not add timestamps but we remove them
when the files no longer exist (file removed in the build dir)"""
i_existing_nodes = [x for x in parent_node.childs.values() if x.id & 3 == Node.BUILD]
lst = set(Utils.listdir(path))
node_names = set([x.name for x in i_existing_nodes])
remove_names = node_names - lst
# remove the stamps of the build nodes that no longer exist on the filesystem
ids_to_remove = [x.id for x in i_existing_nodes if x.name in remove_names]
cache = self.node_sigs[variant]
for nid in ids_to_remove:
if nid in cache:
cache.__delitem__(nid)
def get_env(self):
return self.env_of_name('default')
def set_env(self, name, val):
self.all_envs[name] = val
env = property(get_env, set_env)
def add_manual_dependency(self, path, value):
if isinstance(path, Node.Node):
node = path
elif os.path.isabs(path):
node = self.root.find_resource(path)
else:
node = self.path.find_resource(path)
self.deps_man[node.id].append(value)
def launch_node(self):
"""return the launch directory as a node"""
# p_ln is kind of private, but public in case if
try:
return self.p_ln
except AttributeError:
self.p_ln = self.root.find_dir(Options.launch_dir)
return self.p_ln
def glob(self, pattern, relative=True):
"files matching the pattern, seen from the current folder"
path = self.path.abspath()
files = [self.root.find_resource(x) for x in glob.glob(path+os.sep+pattern)]
if relative:
files = [x.path_to_parent(self.path) for x in files if x]
else:
files = [x.abspath() for x in files if x]
return files
## the following methods are candidates for the stable apis ##
def add_group(self, *k):
self.task_manager.add_group(*k)
def set_group(self, *k, **kw):
self.task_manager.set_group(*k, **kw)
def hash_env_vars(self, env, vars_lst):
"""hash environment variables
['CXX', ..] -> [env['CXX'], ..] -> md5()"""
# ccroot objects use the same environment for building the .o at once
# the same environment and the same variables are used
idx = str(id(env)) + str(vars_lst)
try: return self.cache_sig_vars[idx]
except KeyError: pass
lst = [str(env[a]) for a in vars_lst]
ret = Utils.h_list(lst)
debug('envhash: %r %r', ret, lst)
# next time
self.cache_sig_vars[idx] = ret
return ret
def name_to_obj(self, name, env):
"""retrieve a task generator from itsnameitstargetname import
remember that names must be unique"""
cache = self.task_gen_cache_names
if not cache:
# create the index lazily
for x in self.all_task_gen:
vt = x.env.variant() + '_'
if x.name:
cache[vt + x.name] = x
else:
if isinstance(x.target, str):
target = x.target
else:
target = ' '.join(x.target)
v = vt + target
if not cache.get(v, None):
cache[v] = x
return cache.get(env.variant() + '_' + name, None)
def flush(self, all=1):
"""tell the task generators to create the tasks"""
self.ini = datetime.datetime.now()
# force the initialization of the mapping name->object in flush
# name_to_obj can be used in userland scripts, in that case beware of incomplete mapping
self.task_gen_cache_names = {}
self.name_to_obj('', self.env)
debug('build: delayed operation TaskGen.flush() called')
if Options.options.compile_targets:
debug('task_gen: posting objects %r listed in compile_targets', Options.options.compile_targets)
mana = self.task_manager
to_post = []
min_grp = 0
# ensure the target names exist, fail before any post()
target_objects = Utils.DefaultDict(list)
for target_name in Options.options.compile_targets.split(','):
# trim target_name (handle cases when the user added spaces to targets)
target_name = target_name.strip()
for env in self.all_envs.values():
tg = self.name_to_obj(target_name, env)
if tg:
target_objects[target_name].append(tg)
m = mana.group_idx(tg)
if m > min_grp:
min_grp = m
to_post = [tg]
elif m == min_grp:
to_post.append(tg)
if not target_name in target_objects and all:
raise Utils.WafError("target '%s' does not exist" % target_name)
debug('group: Forcing up to group %s for target %s', mana.group_name(min_grp), Options.options.compile_targets)
# post all the task generators in previous groups
for i in xrange(len(mana.groups)):
mana.current_group = i
if i == min_grp:
break
g = mana.groups[i]
debug('group: Forcing group %s', mana.group_name(g))
for t in g.tasks_gen:
debug('group: Posting %s', t.name or t.target)
t.post()
# then post the task generators listed in compile_targets in the last group
for t in to_post:
t.post()
else:
debug('task_gen: posting objects (normal)')
ln = self.launch_node()
# if the build is started from the build directory, do as if it was started from the top-level
# for the pretty-printing (Node.py), the two lines below cannot be moved to Build::launch_node
if ln.is_child_of(self.bldnode) or not ln.is_child_of(self.srcnode):
ln = self.srcnode
# if the project file is located under the source directory, build all targets by default
# else 'waf configure build' does nothing
proj_node = self.root.find_dir(os.path.split(Utils.g_module.root_path)[0])
if proj_node.id != self.srcnode.id:
ln = self.srcnode
for i in xrange(len(self.task_manager.groups)):
g = self.task_manager.groups[i]
self.task_manager.current_group = i
if Logs.verbose:
groups = [x for x in self.task_manager.groups_names if id(self.task_manager.groups_names[x]) == id(g)]
name = groups and groups[0] or 'unnamed'
Logs.debug('group: group', name)
for tg in g.tasks_gen:
if not tg.path.is_child_of(ln):
continue
if Logs.verbose:
Logs.debug('group: %s' % tg)
tg.post()
def env_of_name(self, name):
try:
return self.all_envs[name]
except KeyError:
error('no such environment: '+name)
return None
def progress_line(self, state, total, col1, col2):
n = len(str(total))
Utils.rot_idx += 1
ind = Utils.rot_chr[Utils.rot_idx % 4]
ini = self.ini
pc = (100.*state)/total
eta = Utils.get_elapsed_time(ini)
fs = "[%%%dd/%%%dd][%%s%%2d%%%%%%s][%s][" % (n, n, ind)
left = fs % (state, total, col1, pc, col2)
right = '][%s%s%s]' % (col1, eta, col2)
cols = Utils.get_term_cols() - len(left) - len(right) + 2*len(col1) + 2*len(col2)
if cols < 7: cols = 7
ratio = int((cols*state)/total) - 1
bar = ('='*ratio+'>').ljust(cols)
msg = Utils.indicator % (left, bar, right)
return msg
# do_install is not used anywhere
def do_install(self, src, tgt, chmod=O644):
"""returns true if the file was effectively installed or uninstalled, false otherwise"""
if self.is_install > 0:
if not Options.options.force:
# check if the file is already there to avoid a copy
try:
st1 = os.stat(tgt)
st2 = os.stat(src)
except OSError:
pass
else:
# same size and identical timestamps -> make no copy
if st1.st_mtime >= st2.st_mtime and st1.st_size == st2.st_size:
return False
srclbl = src.replace(self.srcnode.abspath(None)+os.sep, '')
info("* installing %s as %s" % (srclbl, tgt))
# following is for shared libs and stale inodes (-_-)
try: os.remove(tgt)
except OSError: pass
try:
shutil.copy2(src, tgt)
os.chmod(tgt, chmod)
except IOError:
try:
os.stat(src)
except (OSError, IOError):
error('File %r does not exist' % src)
raise Utils.WafError('Could not install the file %r' % tgt)
return True
elif self.is_install < 0:
info("* uninstalling %s" % tgt)
self.uninstall.append(tgt)
try:
os.remove(tgt)
except OSError, e:
if e.errno != errno.ENOENT:
if not getattr(self, 'uninstall_error', None):
self.uninstall_error = True
Logs.warn('build: some files could not be uninstalled (retry with -vv to list them)')
if Logs.verbose > 1:
Logs.warn('could not remove %s (error code %r)' % (e.filename, e.errno))
return True
red = re.compile(r"^([A-Za-z]:)?[/\\\\]*")
def get_install_path(self, path, env=None):
"installation path prefixed by the destdir, the variables like in '${PREFIX}/bin' are substituted"
if not env: env = self.env
destdir = env.get_destdir()
path = path.replace('/', os.sep)
destpath = Utils.subst_vars(path, env)
if destdir:
destpath = os.path.join(destdir, self.red.sub('', destpath))
return destpath
def install_dir(self, path, env=None):
"""
create empty folders for the installation (very rarely used)
"""
if env:
assert isinstance(env, Environment.Environment), "invalid parameter"
else:
env = self.env
if not path:
return []
destpath = self.get_install_path(path, env)
if self.is_install > 0:
info('* creating %s' % destpath)
Utils.check_dir(destpath)
elif self.is_install < 0:
info('* removing %s' % destpath)
self.uninstall.append(destpath + '/xxx') # yes, ugly
def install_files(self, path, files, env=None, chmod=O644, relative_trick=False, cwd=None):
"""To install files only after they have been built, put the calls in a method named
post_build on the top-level wscript
The files must be a list and contain paths as strings or as Nodes
The relative_trick flag can be set to install folders, use bld.path.ant_glob() with it
"""
if env:
assert isinstance(env, Environment.Environment), "invalid parameter"
else:
env = self.env
if not path: return []
if not cwd:
cwd = self.path
if isinstance(files, str) and '*' in files:
gl = cwd.abspath() + os.sep + files
lst = glob.glob(gl)
else:
lst = Utils.to_list(files)
if not getattr(lst, '__iter__', False):
lst = [lst]
destpath = self.get_install_path(path, env)
Utils.check_dir(destpath)
installed_files = []
for filename in lst:
if isinstance(filename, str) and os.path.isabs(filename):
alst = Utils.split_path(filename)
destfile = os.path.join(destpath, alst[-1])
else:
if isinstance(filename, Node.Node):
nd = filename
else:
nd = cwd.find_resource(filename)
if not nd:
raise Utils.WafError("Unable to install the file %r (not found in %s)" % (filename, cwd))
if relative_trick:
destfile = os.path.join(destpath, filename)
Utils.check_dir(os.path.dirname(destfile))
else:
destfile = os.path.join(destpath, nd.name)
filename = nd.abspath(env)
if self.do_install(filename, destfile, chmod):
installed_files.append(destfile)
return installed_files
def install_as(self, path, srcfile, env=None, chmod=O644, cwd=None):
"""
srcfile may be a string or a Node representing the file to install
returns True if the file was effectively installed, False otherwise
"""
if env:
assert isinstance(env, Environment.Environment), "invalid parameter"
else:
env = self.env
if not path:
raise Utils.WafError("where do you want to install %r? (%r?)" % (srcfile, path))
if not cwd:
cwd = self.path
destpath = self.get_install_path(path, env)
dir, name = os.path.split(destpath)
Utils.check_dir(dir)
# the source path
if isinstance(srcfile, Node.Node):
src = srcfile.abspath(env)
else:
src = srcfile
if not os.path.isabs(srcfile):
node = cwd.find_resource(srcfile)
if not node:
raise Utils.WafError("Unable to install the file %r (not found in %s)" % (srcfile, cwd))
src = node.abspath(env)
return self.do_install(src, destpath, chmod)
def symlink_as(self, path, src, env=None, cwd=None):
"""example: bld.symlink_as('${PREFIX}/lib/libfoo.so', 'libfoo.so.1.2.3') """
if sys.platform == 'win32':
# well, this *cannot* work
return
if not path:
raise Utils.WafError("where do you want to install %r? (%r?)" % (src, path))
tgt = self.get_install_path(path, env)
dir, name = os.path.split(tgt)
Utils.check_dir(dir)
if self.is_install > 0:
link = False
if not os.path.islink(tgt):
link = True
elif os.readlink(tgt) != src:
link = True
if link:
try: os.remove(tgt)
except OSError: pass
info('* symlink %s (-> %s)' % (tgt, src))
os.symlink(src, tgt)
return 0
else: # UNINSTALL
try:
info('* removing %s' % (tgt))
os.remove(tgt)
return 0
except OSError:
return 1
def exec_command(self, cmd, **kw):
# 'runner' zone is printed out for waf -v, see wafadmin/Options.py
debug('runner: system command -> %s', cmd)
if self.log:
self.log.write('%s\n' % cmd)
kw['log'] = self.log
try:
if not kw.get('cwd', None):
kw['cwd'] = self.cwd
except AttributeError:
self.cwd = kw['cwd'] = self.bldnode.abspath()
return Utils.exec_command(cmd, **kw)
def printout(self, s):
f = self.log or sys.stderr
f.write(s)
f.flush()
def add_subdirs(self, dirs):
self.recurse(dirs, 'build')
def pre_recurse(self, name_or_mod, path, nexdir):
if not hasattr(self, 'oldpath'):
self.oldpath = []
self.oldpath.append(self.path)
self.path = self.root.find_dir(nexdir)
return {'bld': self, 'ctx': self}
def post_recurse(self, name_or_mod, path, nexdir):
self.path = self.oldpath.pop()
###### user-defined behaviour
def pre_build(self):
if hasattr(self, 'pre_funs'):
for m in self.pre_funs:
m(self)
def post_build(self):
if hasattr(self, 'post_funs'):
for m in self.post_funs:
m(self)
def add_pre_fun(self, meth):
try: self.pre_funs.append(meth)
except AttributeError: self.pre_funs = [meth]
def add_post_fun(self, meth):
try: self.post_funs.append(meth)
except AttributeError: self.post_funs = [meth]
def use_the_magic(self):
Task.algotype = Task.MAXPARALLEL
Task.file_deps = Task.extract_deps
self.magic = True
install_as = group_method(install_as)
install_files = group_method(install_files)
symlink_as = group_method(symlink_as)
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