node/tools/wafadmin/Build.py at https · reado/node · GitHub

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#!/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:

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 its name or its target name

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 listed in compile_targets')

# 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():

obj = self.name_to_obj(target_name, env)

if obj:

target_objects[target_name].append(obj)

if not target_name in target_objects and all:

raise Utils.WafError("target '%s' does not exist" % target_name)

to_compile = []

for x in target_objects.values():

for y in x:

to_compile.append(id(y))

# tasks must be posted in order of declaration

# we merely apply a filter to discard the ones we are not interested in

for i in xrange(len(self.task_manager.groups)):

g = self.task_manager.groups[i]

self.task_manager.current_group = i

if Logs.verbose:

Logs.debug('group: group %s' % ([x for x in self.task_manager.groups_names if id(self.task_manager.groups_names[x]) == id(g)][0]))

for tg in g.tasks_gen:

if id(tg) in to_compile:

if Logs.verbose:

Logs.debug('group: %s' % tg)

tg.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:

Logs.debug('group: group %s' % ([x for x in self.task_manager.groups_names if id(self.task_manager.groups_names[x]) == id(g)][0]))

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):

View remainder of file in raw view

node/tools/wafadmin/Build.py at https · reado/node · GitHub

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