Source code for nsist.nsiswriter

import itertools
from operator import itemgetter
import os
import ntpath
import re
import sys

import jinja2

_PKGDIR = os.path.abspath(os.path.dirname(__file__))

PY2 = sys.version_info[0] == 2

[docs]class NSISFileWriter(object): """Write an .nsi script file by filling in a template. """
[docs] def __init__(self, template_file, installerbuilder, definitions=None): """Instantiate an NSISFileWriter :param str template_file: Path to the .nsi template :param dict definitions: Mapping of name to value (values will be quoted) """ env = jinja2.Environment(loader=jinja2.FileSystemLoader([ _PKGDIR, os.getcwd() ]), # Change template markers from {}, which NSIS uses, to [], which it # doesn't much, so it's easier to distinguishing our templating from # NSIS preprocessor variables. block_start_string="[%", block_end_string="%]", variable_start_string="[[", variable_end_string="]]", comment_start_string="[#", comment_end_string="#]", # Trim whitespace around block tags, so formatting works as I expect trim_blocks=True, lstrip_blocks=True, ) self.template = env.get_template(template_file) self.installerbuilder = installerbuilder # Group files by their destination directory grouped_files = [(dest, [x[0] for x in group]) for (dest, group) in itertools.groupby(self.installerbuilder.install_files, itemgetter(1)) ] self.namespace = { 'ib': installerbuilder, 'grouped_files': grouped_files, 'icon': os.path.basename(installerbuilder.icon), 'arch_tag': '.amd64' if (installerbuilder.py_bitness==64) else '', 'pjoin': ntpath.join, 'single_shortcut': len(installerbuilder.shortcuts) == 1, 'pynsist_pkg_dir': _PKGDIR, 'has_commands': len(installerbuilder.commands) > 0, } if installerbuilder.py_format == 'bundled': self.namespace['python'] = '"$INSTDIR\\Python\\python"' else: self.namespace['python'] = 'py -{}'.format(installerbuilder.py_qualifier)
[docs] def write(self, target): """Fill out the template and write the result to 'target'. :param str target: Path to the file to be written """ with open(target, 'w') as fout: fout.write(self.template.render(self.namespace))