Jan Lindemann
3f47abb29a
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App.get_projects_refs() is a versatile tool, but what it does isn't
obvious. Use the simpler method .get_value() instead for
get_libname(), and return None if a project doesn't provide a
linkable library.
This is similar to fix aadcdfb5f.
Signed-off-by: Jan Lindemann <jan@janware.com>
81 lines
2.4 KiB
Python
81 lines
2.4 KiB
Python
from __future__ import annotations
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from ...App import Scope
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from .Cmd import Cmd, Parent
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from typing import TYPE_CHECKING
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if TYPE_CHECKING:
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from argparse import ArgumentParser, Namespace
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class CmdLdflags(Cmd): # export
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def __init__(self, parent: Parent) -> None:
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super().__init__(parent, 'ldflags', help = 'ldflags')
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def add_arguments(self, parser: ArgumentParser) -> None:
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super().add_arguments(parser)
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parser.add_argument('module', nargs = '*', help = 'Modules')
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parser.add_argument(
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'--exclude', action = 'append', help = 'Exclude Modules', default = []
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)
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parser.add_argument(
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'-s',
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'--add-self',
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action = 'store_true',
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default = False,
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help = (
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'Include libflags of specified modules, too, '
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'not only their dependencies'
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),
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)
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# -L needs to contain more paths than libs linked with -l would require
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def __get_ldpathflags(
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self, names: list[str], exclude: list[str] = []
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) -> str | None:
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deps = self.app.get_project_refs(
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names,
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['pkg.requires.jw'],
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'build',
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scope = Scope.Subtree,
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add_self = True,
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names_only = True,
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)
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ret = []
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for m in deps:
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if m in exclude:
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continue
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libname = self.app.get_libname(m)
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if libname is None:
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continue
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path = self.app.find_dir(m, ['/lib'])
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if not path:
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continue
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ret.append('-L' + path)
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if not ret:
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return None
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return ' '.join(ret)
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async def _run(self, args: Namespace) -> None:
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deps = self.app.get_project_refs(
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args.module,
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['pkg.requires.jw'],
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'build',
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scope = Scope.One,
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add_self = args.add_self,
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names_only = True,
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)
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out = []
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for m in reversed(deps):
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if m in args.exclude:
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continue
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libname = self.app.get_libname(m)
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if libname is None:
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continue
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out.append('-l' + libname)
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if not out:
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return
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ldpathflags = self.__get_ldpathflags(args.module, args.exclude)
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if ldpathflags is not None:
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out.insert(0, ldpathflags)
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print(' '.join(out))
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