mirror of https://gitlab.com/ita1024/waf.git
Refactor bld.install_as/bld.install_files/bld.symlink_as to use actual task objects
This commit is contained in:
Thomas Nagy
parent
09f67a3b3a
commit
1eaa87413d
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@ -0,0 +1,30 @@
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#! /usr/bin/env python
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# encoding: utf-8
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# Thomas Nagy, 2016
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#
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# DESTDIR=/tmp/somedir waf install
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def configure(conf):
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pass
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from waflib import TaskGen, Build
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@TaskGen.feature('ruler')
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@TaskGen.before('process_rule')
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def stuff(self):
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if not self.bld.is_install:
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while self.meths:
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self.meths.pop()
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return
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tg = self.bld.get_tgen_by_name(self.bring_in)
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tg.post() # as a task generator
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assert tg.install_task.outputs
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self.source = tg.install_task.outputs # tg is a task object
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def build(bld):
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bld.install_as('${PREFIX}/bin/foo', 'wscript', chmod = 0555)
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bld.symlink_as('${PREFIX}/bin/bar', 'foo')
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tsk = bld.install_files('${PREFIX}/bin', 'wscript', chmod = 0555, name='cheese')
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bld(rule='ls -l ${SRC}', always=True, bring_in='cheese', features='ruler')
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@ -1,9 +1,6 @@
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#!/usr/bin/env python
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# encoding: ISO8859-1
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# Thomas Nagy, 2005-2016
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#
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# This is waf 1.9 p1, a preview version of waf 1.9
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# The final version will be released in the future
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"""
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Redistribution and use in source and binary forms, with or without
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511
waflib/Build.py
511
waflib/Build.py
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@ -191,18 +191,6 @@ class BuildContext(Context.Context):
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"""Implemented to prevents copies of build contexts (raises an exception)"""
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raise Errors.WafError('build contexts cannot be copied')
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def install_files(self, *k, **kw):
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"""Actual implementation provided by :py:meth:`waflib.Build.InstallContext.install_files`"""
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pass
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def install_as(self, *k, **kw):
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"""Actual implementation provided by :py:meth:`waflib.Build.InstallContext.install_as`"""
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pass
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def symlink_as(self, *k, **kw):
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"""Actual implementation provided by :py:meth:`waflib.Build.InstallContext.symlink_as`"""
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pass
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def load_envs(self):
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"""
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The configuration command creates files of the form ``build/c4che/NAMEcache.py``. This method
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@ -800,221 +788,11 @@ class BuildContext(Context.Context):
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if not tasks: # return something else the build will stop
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continue
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yield tasks
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while 1:
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yield []
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class inst(Task.Task):
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"""
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Special task used for installing files and symlinks, it behaves both like a task
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and like a task generator
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"""
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color = 'CYAN'
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def uid(self):
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lst = [self.dest, self.path] + self.source
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return Utils.h_list(lst)
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def post(self):
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"""
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Same interface as in :py:meth:`waflib.TaskGen.task_gen.post`
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"""
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buf = []
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for x in self.source:
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if isinstance(x, waflib.Node.Node):
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y = x
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else:
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y = self.path.find_resource(x)
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if not y:
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if os.path.isabs(x):
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y = self.bld.root.make_node(x)
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else:
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y = self.path.make_node(x)
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buf.append(y)
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self.inputs = buf
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def runnable_status(self):
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"""
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Installation tasks are always executed, so this method returns either :py:const:`waflib.Task.ASK_LATER` or :py:const:`waflib.Task.RUN_ME`.
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"""
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ret = super(inst, self).runnable_status()
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if ret == Task.SKIP_ME:
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return Task.RUN_ME
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return ret
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def __str__(self):
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"""Return an empty string to disable the display"""
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return ''
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def run(self):
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"""The attribute 'exec_task' holds the method to execute"""
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return self.generator.exec_task()
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def get_install_path(self, destdir=True):
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"""
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Installation path obtained from ``self.dest`` and prefixed by the destdir.
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The variables such as '${PREFIX}/bin' are substituted.
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"""
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dest = Utils.subst_vars(self.dest, self.env)
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dest = dest.replace('/', os.sep)
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if destdir and Options.options.destdir:
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dest = os.path.join(Options.options.destdir, os.path.splitdrive(dest)[1].lstrip(os.sep))
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return dest
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def exec_install_files(self):
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"""
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Predefined method for installing files
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"""
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destpath = self.get_install_path()
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if not destpath:
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raise Errors.WafError('unknown installation path %r' % self.generator)
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for x, y in zip(self.source, self.inputs):
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if self.relative_trick:
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destfile = os.path.join(destpath, y.path_from(self.path))
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else:
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destfile = os.path.join(destpath, y.name)
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self.generator.bld.do_install(y.abspath(), destfile, chmod=self.chmod, tsk=self)
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def exec_install_as(self):
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"""
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Predefined method for installing one file with a given name
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"""
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destfile = self.get_install_path()
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self.generator.bld.do_install(self.inputs[0].abspath(), destfile, chmod=self.chmod, tsk=self)
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def exec_symlink_as(self):
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"""
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Predefined method for installing a symlink
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"""
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destfile = self.get_install_path()
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src = self.link
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if self.relative_trick:
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src = os.path.relpath(src, os.path.dirname(destfile))
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self.generator.bld.do_link(src, destfile, tsk=self)
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class InstallContext(BuildContext):
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'''installs the targets on the system'''
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cmd = 'install'
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def __init__(self, **kw):
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super(InstallContext, self).__init__(**kw)
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# list of targets to uninstall for removing the empty folders after uninstalling
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self.uninstall = []
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self.is_install = INSTALL
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def copy_fun(self, src, tgt, **kw):
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# override this if you want to strip executables
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# kw['tsk'].source is the task that created the files in the build
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if Utils.is_win32 and len(tgt) > 259 and not tgt.startswith('\\\\?\\'):
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tgt = '\\\\?\\' + tgt
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shutil.copy2(src, tgt)
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os.chmod(tgt, kw.get('chmod', Utils.O644))
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def do_install(self, src, tgt, **kw):
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"""
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Copy a file from src to tgt with given file permissions. The actual copy is not performed
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if the source and target file have the same size and the same timestamps. When the copy occurs,
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the file is first removed and then copied (prevent stale inodes).
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This method is overridden in :py:meth:`waflib.Build.UninstallContext.do_install` to remove the file.
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:param src: file name as absolute path
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:type src: string
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:param tgt: file destination, as absolute path
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:type tgt: string
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:param chmod: installation mode
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:type chmod: int
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"""
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d, _ = os.path.split(tgt)
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if not d:
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raise Errors.WafError('Invalid installation given %r->%r' % (src, tgt))
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Utils.check_dir(d)
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srclbl = src.replace(self.srcnode.abspath() + os.sep, '')
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if not Options.options.force:
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# check if the file is already there to avoid a copy
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try:
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st1 = os.stat(tgt)
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st2 = os.stat(src)
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except OSError:
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pass
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else:
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# same size and identical timestamps -> make no copy
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if st1.st_mtime + 2 >= st2.st_mtime and st1.st_size == st2.st_size:
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if not self.progress_bar:
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Logs.info('- install %s (from %s)' % (tgt, srclbl))
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return False
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if not self.progress_bar:
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Logs.info('+ install %s (from %s)' % (tgt, srclbl))
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# Give best attempt at making destination overwritable,
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# like the 'install' utility used by 'make install' does.
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try:
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os.chmod(tgt, Utils.O644 | stat.S_IMODE(os.stat(tgt).st_mode))
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except EnvironmentError:
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pass
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# following is for shared libs and stale inodes (-_-)
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try:
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os.remove(tgt)
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except OSError:
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pass
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try:
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self.copy_fun(src, tgt, **kw)
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except IOError:
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try:
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os.stat(src)
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except EnvironmentError:
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Logs.error('File %r does not exist' % src)
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raise Errors.WafError('Could not install the file %r' % tgt)
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def do_link(self, src, tgt, **kw):
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"""
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Create a symlink from tgt to src.
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This method is overridden in :py:meth:`waflib.Build.UninstallContext.do_link` to remove the symlink.
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:param src: file name as absolute path
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:type src: string
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:param tgt: file destination, as absolute path
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:type tgt: string
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"""
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d, _ = os.path.split(tgt)
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Utils.check_dir(d)
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link = False
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if not os.path.islink(tgt):
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link = True
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elif os.readlink(tgt) != src:
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link = True
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if link:
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try: os.remove(tgt)
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except OSError: pass
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if not self.progress_bar:
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Logs.info('+ symlink %s (to %s)' % (tgt, src))
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os.symlink(src, tgt)
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else:
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if not self.progress_bar:
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Logs.info('- symlink %s (to %s)' % (tgt, src))
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def run_task_now(self, tsk, postpone):
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"""
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This method is called by :py:meth:`waflib.Build.InstallContext.install_files`,
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:py:meth:`waflib.Build.InstallContext.install_as` and :py:meth:`waflib.Build.InstallContext.symlink_as` immediately
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after the installation task is created. Its role is to force the immediate execution if necessary, that is when
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``postpone=False`` was given.
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"""
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tsk.post()
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if not postpone:
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if tsk.runnable_status() == Task.ASK_LATER:
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raise self.WafError('cannot post the task %r' % tsk)
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tsk.run()
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tsk.hasrun = True
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def install_files(self, dest, files, env=None, chmod=Utils.O644, relative_trick=False, cwd=None, add=True, postpone=True, task=None):
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def install_files(self, dest, files, **kw):
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"""
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Create a task to install files on the system::
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@ -1037,23 +815,14 @@ class InstallContext(BuildContext):
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:type postpone: bool
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"""
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assert(dest)
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tsk = inst(env=env or self.env)
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tsk.bld = self
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tsk.path = cwd or self.path
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tsk.chmod = chmod
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tsk.task = task
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if isinstance(files, waflib.Node.Node):
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tsk.source = [files]
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else:
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tsk.source = Utils.to_list(files)
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tsk.dest = dest
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tsk.exec_task = tsk.exec_install_files
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tsk.relative_trick = relative_trick
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if add: self.add_to_group(tsk)
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self.run_task_now(tsk, postpone)
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return tsk
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tg = self(features='install_it', install_path=dest, install_source=files, **kw)
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tg.type = 'install_files'
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# TODO if add: self.add_to_group(tsk)
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if not kw.get('postpone', True):
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tg.post()
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return tg
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def install_as(self, dest, srcfile, env=None, chmod=Utils.O644, cwd=None, add=True, postpone=True, task=None):
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def install_as(self, dest, srcfile, **kw):
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"""
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Create a task to install a file on the system with a different name::
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@ -1074,19 +843,14 @@ class InstallContext(BuildContext):
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:type postpone: bool
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"""
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assert(dest)
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tsk = inst(env=env or self.env)
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tsk.bld = self
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tsk.path = cwd or self.path
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tsk.chmod = chmod
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tsk.source = [srcfile]
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tsk.task = task
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tsk.dest = dest
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tsk.exec_task = tsk.exec_install_as
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if add: self.add_to_group(tsk)
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self.run_task_now(tsk, postpone)
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return tsk
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tg = self(features='install_it', install_path=dest, install_source=srcfile, **kw)
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tg.type = 'install_as'
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# TODO if add: self.add_to_group(tsk)
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if not kw.get('postpone', True):
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tg.post()
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return tg
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def symlink_as(self, dest, src, env=None, cwd=None, add=True, postpone=True, relative_trick=False, task=None, win32_install=False):
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def symlink_as(self, dest, src, **kw):
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"""
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Create a task to install a symlink::
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@ -1106,31 +870,109 @@ class InstallContext(BuildContext):
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:param relative_trick: make the symlink relative (default: ``False``)
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:type relative_trick: bool
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"""
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if Utils.is_win32 and win32_install:
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# symlinks *cannot* work on win32, install the file instead
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# TODO chmod value?
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return self.install_as(dest, src, env=env, cwd=cwd, add=add, postpone=postpone, task=task)
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assert(dest)
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tsk = inst(env=env or self.env)
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tsk.bld = self
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tsk.dest = dest
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tsk.path = cwd or self.path
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tsk.source = []
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tsk.task = task
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tsk.link = src
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tsk.relative_trick = relative_trick
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tsk.exec_task = tsk.exec_symlink_as
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if add: self.add_to_group(tsk)
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self.run_task_now(tsk, postpone)
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return tsk
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tg = self(features='install_it', install_path=dest, install_source=src, **kw)
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tg.type = 'symlink_as'
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tg.link = src
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# TODO if add: self.add_to_group(tsk)
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if not kw.get('postpone', True):
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tg.post()
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return tg
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class UninstallContext(InstallContext):
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'''removes the targets installed'''
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cmd = 'uninstall'
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@TaskGen.feature('install_it')
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@TaskGen.before_method('process_rule', 'process_source')
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def add_install_tasks(self):
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if not self.bld.is_install:
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return
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if not self.install_path:
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return
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def __init__(self, **kw):
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super(UninstallContext, self).__init__(**kw)
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self.is_install = UNINSTALL
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if self.type == 'symlink_as' and Utils.is_win32:
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if getattr(self, 'win32_install'):
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self.type = 'install_as'
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else:
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# just exit
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return
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if self.type == 'symlink_as':
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inputs = []
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else:
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inputs = self.to_nodes(self.install_source)
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if self.type == 'install_as':
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assert len(inputs) == 1
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else:
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pass
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tsk = self.install_task = self.create_task('inst')
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tsk.link = ''
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tsk.chmod = getattr(self, 'chmod', Utils.O644)
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dest = tsk.get_install_path()
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self.relative_trick = getattr(self, 'relative_trick', False)
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outputs = []
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if self.type == 'symlink_as':
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if self.relative_trick:
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tsk.link = os.path.relpath(self.link, os.path.dirname(dest))
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else:
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tsk.link = self.link
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outputs.append(self.bld.root.make_node(dest))
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elif self.type == 'install_as':
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outputs.append(self.bld.root.make_node(dest))
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else:
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for y in inputs:
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if self.relative_trick:
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destfile = os.path.join(dest, y.path_from(self.path))
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else:
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destfile = os.path.join(dest, y.name)
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outputs.append(self.bld.root.make_node(destfile))
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tsk.set_inputs(inputs)
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tsk.set_outputs(outputs)
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if not getattr(self, 'postpone', True):
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status = self.install_task.runnable_status()
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if status not in (Task.RUN_ME, Task.SKIP_ME):
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raise Errors.WafError('Could not process %r (not ready)' % self.install_task)
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self.install_task.run()
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self.install_task.hasrun = Task.SUCCESS
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class inst(Task.Task):
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color = 'CYAN'
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def __str__(self):
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"""Return an empty string to disable the display"""
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return ''
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def uid(self):
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lst = self.inputs + self.outputs + [self.link, self.generator.path.abspath()]
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return Utils.h_list(lst)
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def runnable_status(self):
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"""
|
||||
Installation tasks are always executed, so this method returns either :py:const:`waflib.Task.ASK_LATER` or :py:const:`waflib.Task.RUN_ME`.
|
||||
"""
|
||||
ret = super(inst, self).runnable_status()
|
||||
if ret == Task.SKIP_ME and self.generator.bld.is_install:
|
||||
return Task.RUN_ME
|
||||
return ret
|
||||
|
||||
def post_run(self):
|
||||
pass
|
||||
|
||||
def get_install_path(self, destdir=True):
|
||||
dest = Utils.subst_vars(self.generator.install_path, self.env)
|
||||
if destdir and Options.options.destdir:
|
||||
dest = os.path.join(Options.options.destdir, os.path.splitdrive(dest)[1].lstrip(os.sep))
|
||||
return dest
|
||||
|
||||
def copy_fun(self, src, tgt):
|
||||
# override this if you want to strip executables
|
||||
# kw['tsk'].source is the task that created the files in the build
|
||||
if Utils.is_win32 and len(tgt) > 259 and not tgt.startswith('\\\\?\\'):
|
||||
tgt = '\\\\?\\' + tgt
|
||||
shutil.copy2(src, tgt)
|
||||
os.chmod(tgt, self.chmod)
|
||||
|
||||
def rm_empty_dirs(self, tgt):
|
||||
while tgt:
|
||||
|
|
@ -1140,12 +982,99 @@ class UninstallContext(InstallContext):
|
|||
except OSError:
|
||||
break
|
||||
|
||||
def do_install(self, src, tgt, **kw):
|
||||
"""See :py:meth:`waflib.Build.InstallContext.do_install`"""
|
||||
if not self.progress_bar:
|
||||
def run(self):
|
||||
is_install = self.generator.bld.is_install
|
||||
if not is_install: # unnecessary?
|
||||
return
|
||||
|
||||
for x in self.outputs:
|
||||
if is_install == INSTALL:
|
||||
x.parent.mkdir()
|
||||
if self.generator.type == 'symlink_as':
|
||||
fun = is_install == INSTALL and self.do_link or self.do_unlink
|
||||
fun(self.link, self.outputs[0].abspath())
|
||||
else:
|
||||
fun = is_install == INSTALL and self.do_install or self.do_uninstall
|
||||
launch_node = self.generator.bld.launch_node()
|
||||
for x, y in zip(self.inputs, self.outputs):
|
||||
fun(x.abspath(), y.abspath(), x.path_from(launch_node))
|
||||
|
||||
def do_install(self, src, tgt, lbl, **kw):
|
||||
"""
|
||||
Copy a file from src to tgt with given file permissions. The actual copy is not performed
|
||||
if the source and target file have the same size and the same timestamps. When the copy occurs,
|
||||
the file is first removed and then copied (prevent stale inodes).
|
||||
|
||||
:param src: file name as absolute path
|
||||
:type src: string
|
||||
:param tgt: file destination, as absolute path
|
||||
:type tgt: string
|
||||
:param chmod: installation mode
|
||||
:type chmod: int
|
||||
"""
|
||||
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 + 2 >= st2.st_mtime and st1.st_size == st2.st_size:
|
||||
if not self.generator.bld.progress_bar:
|
||||
Logs.info('- install %s (from %s)' % (tgt, lbl))
|
||||
return False
|
||||
|
||||
if not self.generator.bld.progress_bar:
|
||||
Logs.info('+ install %s (from %s)' % (tgt, lbl))
|
||||
|
||||
# Give best attempt at making destination overwritable,
|
||||
# like the 'install' utility used by 'make install' does.
|
||||
try:
|
||||
os.chmod(tgt, Utils.O644 | stat.S_IMODE(os.stat(tgt).st_mode))
|
||||
except EnvironmentError:
|
||||
pass
|
||||
|
||||
# following is for shared libs and stale inodes (-_-)
|
||||
try:
|
||||
os.remove(tgt)
|
||||
except OSError:
|
||||
pass
|
||||
|
||||
try:
|
||||
self.copy_fun(src, tgt)
|
||||
except IOError:
|
||||
if not src.exists():
|
||||
Logs.error('File %r does not exist' % src)
|
||||
raise Errors.WafError('Could not install the file %r' % tgt)
|
||||
|
||||
def do_link(self, src, tgt, **kw):
|
||||
"""
|
||||
Create a symlink from tgt to src.
|
||||
|
||||
:param src: file name as absolute path
|
||||
:type src: string
|
||||
:param tgt: file destination, as absolute path
|
||||
:type tgt: string
|
||||
"""
|
||||
if not os.path.islink(tgt) or os.readlink(tgt) != src:
|
||||
try:
|
||||
os.remove(tgt)
|
||||
except OSError:
|
||||
pass
|
||||
if not self.generator.bld.progress_bar:
|
||||
Logs.info('+ symlink %s (to %s)' % (tgt, src))
|
||||
os.symlink(src, tgt)
|
||||
else:
|
||||
if not self.generator.bld.progress_bar:
|
||||
Logs.info('- symlink %s (to %s)' % (tgt, src))
|
||||
|
||||
def do_uninstall(self, src, tgt, lbl, **kw):
|
||||
if not self.generator.bld.progress_bar:
|
||||
Logs.info('- remove %s' % tgt)
|
||||
|
||||
self.uninstall.append(tgt)
|
||||
#self.uninstall.append(tgt)
|
||||
try:
|
||||
os.remove(tgt)
|
||||
except OSError as e:
|
||||
|
|
@ -1155,24 +1084,40 @@ class UninstallContext(InstallContext):
|
|||
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))
|
||||
|
||||
self.rm_empty_dirs(tgt)
|
||||
|
||||
def do_link(self, src, tgt, **kw):
|
||||
"""See :py:meth:`waflib.Build.InstallContext.do_link`"""
|
||||
def do_unlink(self, src, tgt, **kw):
|
||||
# TODO do_uninstall with proper amount of args
|
||||
try:
|
||||
if not self.progress_bar:
|
||||
if not self.generator.bld.progress_bar:
|
||||
Logs.info('- remove %s' % tgt)
|
||||
os.remove(tgt)
|
||||
except OSError:
|
||||
pass
|
||||
|
||||
self.rm_empty_dirs(tgt)
|
||||
|
||||
class InstallContext(BuildContext):
|
||||
'''installs the targets on the system'''
|
||||
cmd = 'install'
|
||||
|
||||
def __init__(self, **kw):
|
||||
super(InstallContext, self).__init__(**kw)
|
||||
#self.uninstall = []
|
||||
self.is_install = INSTALL
|
||||
|
||||
class UninstallContext(InstallContext):
|
||||
'''removes the targets installed'''
|
||||
cmd = 'uninstall'
|
||||
|
||||
def __init__(self, **kw):
|
||||
super(UninstallContext, self).__init__(**kw)
|
||||
self.is_install = UNINSTALL
|
||||
|
||||
def execute(self):
|
||||
"""
|
||||
See :py:func:`waflib.Context.Context.execute`
|
||||
"""
|
||||
# TODO just mark the tasks are already run with hasrun=Task.SKIPPED
|
||||
try:
|
||||
# do not execute any tasks
|
||||
def runnable_status(self):
|
||||
|
|
|
|||
Loading…
Reference in New Issue