def build()

in build/fbcode_builder/getdeps/builder.py [0:0]


    def build(self, install_dirs, reconfigure: bool) -> None:
        print("Installing %s -> %s" % (self.src_dir, self.inst_dir))
        parent = os.path.dirname(self.inst_dir)
        if not os.path.exists(parent):
            os.makedirs(parent)

        install_files = self.manifest.get_section_as_ordered_pairs(
            "install.files", self.ctx
        )
        if install_files:
            for src_name, dest_name in self.manifest.get_section_as_ordered_pairs(
                "install.files", self.ctx
            ):
                full_dest = os.path.join(self.inst_dir, dest_name)
                full_src = os.path.join(self.src_dir, src_name)

                dest_parent = os.path.dirname(full_dest)
                if not os.path.exists(dest_parent):
                    os.makedirs(dest_parent)
                if os.path.isdir(full_src):
                    if not os.path.exists(full_dest):
                        shutil.copytree(full_src, full_dest)
                else:
                    shutil.copyfile(full_src, full_dest)
                    shutil.copymode(full_src, full_dest)
                    # This is a bit gross, but the mac ninja.zip doesn't
                    # give ninja execute permissions, so force them on
                    # for things that look like they live in a bin dir
                    if os.path.dirname(dest_name) == "bin":
                        st = os.lstat(full_dest)
                        os.chmod(full_dest, st.st_mode | stat.S_IXUSR)
        else:
            if not os.path.exists(self.inst_dir):
                shutil.copytree(self.src_dir, self.inst_dir)