diff options
Diffstat (limited to 'waflib/Task.py')
| -rw-r--r-- | waflib/Task.py | 58 |
1 files changed, 35 insertions, 23 deletions
diff --git a/waflib/Task.py b/waflib/Task.py index 0fc449d..cb49a73 100644 --- a/waflib/Task.py +++ b/waflib/Task.py @@ -50,6 +50,9 @@ def f(tsk): bld = gen.bld cwdx = tsk.get_cwd() p = env.get_flat + def to_list(xx): + if isinstance(xx, str): return [xx] + return xx tsk.last_cmd = cmd = \'\'\' %s \'\'\' % s return tsk.exec_command(cmd, cwd=cwdx, env=env.env or None) ''' @@ -77,7 +80,8 @@ def f(tsk): COMPILE_TEMPLATE_SIG_VARS = ''' def f(tsk): - super(tsk.__class__, tsk).sig_vars() + sig = tsk.generator.bld.hash_env_vars(tsk.env, tsk.vars) + tsk.m.update(sig) env = tsk.env gen = tsk.generator bld = gen.bld @@ -159,10 +163,10 @@ class Task(evil): """File extensions that objects of this task class may create""" before = [] - """List of task class names to execute before instances of this class""" + """The instances of this class are executed before the instances of classes whose names are in this list""" after = [] - """List of task class names to execute after instances of this class""" + """The instances of this class are executed after the instances of classes whose names are in this list""" hcode = Utils.SIG_NIL """String representing an additional hash for the class representation""" @@ -302,25 +306,31 @@ class Task(evil): if hasattr(self, 'stderr'): kw['stderr'] = self.stderr - # workaround for command line length limit: - # http://support.microsoft.com/kb/830473 - if not isinstance(cmd, str) and (len(repr(cmd)) >= 8192 if Utils.is_win32 else len(cmd) > 200000): - cmd, args = self.split_argfile(cmd) - try: - (fd, tmp) = tempfile.mkstemp() - os.write(fd, '\r\n'.join(args).encode()) - os.close(fd) - if Logs.verbose: - Logs.debug('argfile: @%r -> %r', tmp, args) - return self.generator.bld.exec_command(cmd + ['@' + tmp], **kw) - finally: + if not isinstance(cmd, str): + if Utils.is_win32: + # win32 compares the resulting length http://support.microsoft.com/kb/830473 + too_long = sum([len(arg) for arg in cmd]) + len(cmd) > 8192 + else: + # non-win32 counts the amount of arguments (200k) + too_long = len(cmd) > 200000 + + if too_long and getattr(self, 'allow_argsfile', True): + # Shunt arguments to a temporary file if the command is too long. + cmd, args = self.split_argfile(cmd) try: - os.remove(tmp) - except OSError: - # anti-virus and indexers can keep files open -_- - pass - else: - return self.generator.bld.exec_command(cmd, **kw) + (fd, tmp) = tempfile.mkstemp() + os.write(fd, '\r\n'.join(args).encode()) + os.close(fd) + if Logs.verbose: + Logs.debug('argfile: @%r -> %r', tmp, args) + return self.generator.bld.exec_command(cmd + ['@' + tmp], **kw) + finally: + try: + os.remove(tmp) + except OSError: + # anti-virus and indexers can keep files open -_- + pass + return self.generator.bld.exec_command(cmd, **kw) def process(self): """ @@ -776,6 +786,8 @@ class Task(evil): Used by :py:meth:`waflib.Task.Task.signature`; it hashes :py:attr:`waflib.Task.Task.env` variables/values When overriding this method, and if scriptlet expressions are used, make sure to follow the code in :py:meth:`waflib.Task.Task.compile_sig_vars` to enable dependencies on scriptlet results. + + This method may be replaced on subclasses by the metaclass to force dependencies on scriptlet code. """ sig = self.generator.bld.hash_env_vars(self.env, self.vars) self.m.update(sig) @@ -1038,7 +1050,7 @@ def funex(c): exec(c, dc) return dc['f'] -re_cond = re.compile('(?P<var>\w+)|(?P<or>\|)|(?P<and>&)') +re_cond = re.compile(r'(?P<var>\w+)|(?P<or>\|)|(?P<and>&)') re_novar = re.compile(r'^(SRC|TGT)\W+.*?$') reg_act = re.compile(r'(?P<backslash>\\)|(?P<dollar>\$\$)|(?P<subst>\$\{(?P<var>\w+)(?P<code>.*?)\})', re.M) def compile_fun_shell(line): @@ -1193,7 +1205,7 @@ def compile_fun_noshell(line): # plain code such as ${tsk.inputs[0].abspath()} call = '%s%s' % (var, code) add_dvar(call) - app('gen.to_list(%s)' % call) + app('to_list(%s)' % call) else: # a plain variable such as # a plain variable like ${AR} app('to_list(env[%r])' % var) |