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127 lines
4.9 KiB
Python
127 lines
4.9 KiB
Python
'''
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Processes a CSV file containing a list of files into a WXS file with
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components for each listed file.
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The CSV columns are:
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source of file, target for file, group name
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Usage::
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py txt_to_wxs.py [path to file list .csv] [path to destination .wxs]
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This is necessary to handle structures where some directories only
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contain other directories. MSBuild is not able to generate the
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Directory entries in the WXS file correctly, as it operates on files.
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Python, however, can easily fill in the gap.
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'''
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__author__ = "Steve Dower <steve.dower@microsoft.com>"
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import csv
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import re
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import sys
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from collections import defaultdict
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from itertools import chain, zip_longest
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from pathlib import PureWindowsPath
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from uuid import uuid1
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ID_CHAR_SUBS = {
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'-': '_',
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'+': '_P',
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}
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def make_id(path):
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return re.sub(
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r'[^A-Za-z0-9_.]',
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lambda m: ID_CHAR_SUBS.get(m.group(0), '_'),
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str(path).rstrip('/\\'),
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flags=re.I
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)
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DIRECTORIES = set()
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def main(file_source, install_target):
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with open(file_source, 'r', newline='') as f:
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files = list(csv.reader(f))
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assert len(files) == len(set(make_id(f[1]) for f in files)), "Duplicate file IDs exist"
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directories = defaultdict(set)
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cache_directories = defaultdict(set)
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groups = defaultdict(list)
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for source, target, group, disk_id, condition in files:
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target = PureWindowsPath(target)
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groups[group].append((source, target, disk_id, condition))
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if target.suffix.lower() in {".py", ".pyw"}:
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cache_directories[group].add(target.parent)
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for dirname in target.parents:
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parent = make_id(dirname.parent)
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if parent and parent != '.':
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directories[parent].add(dirname.name)
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lines = [
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'<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">',
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' <Fragment>',
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]
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for dir_parent in sorted(directories):
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lines.append(' <DirectoryRef Id="{}">'.format(dir_parent))
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for dir_name in sorted(directories[dir_parent]):
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lines.append(' <Directory Id="{}_{}" Name="{}" />'.format(dir_parent, make_id(dir_name), dir_name))
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lines.append(' </DirectoryRef>')
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for dir_parent in (make_id(d) for group in cache_directories.values() for d in group):
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lines.append(' <DirectoryRef Id="{}">'.format(dir_parent))
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lines.append(' <Directory Id="{}___pycache__" Name="__pycache__" />'.format(dir_parent))
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lines.append(' </DirectoryRef>')
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lines.append(' </Fragment>')
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for group in sorted(groups):
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lines.extend([
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' <Fragment>',
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' <ComponentGroup Id="{}">'.format(group),
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])
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for source, target, disk_id, condition in groups[group]:
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lines.append(' <Component Id="{}" Directory="{}" Guid="*">'.format(make_id(target), make_id(target.parent)))
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if condition:
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lines.append(' <Condition>{}</Condition>'.format(condition))
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if disk_id:
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lines.append(' <File Id="{}" Name="{}" Source="{}" DiskId="{}" />'.format(make_id(target), target.name, source, disk_id))
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else:
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lines.append(' <File Id="{}" Name="{}" Source="{}" />'.format(make_id(target), target.name, source))
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lines.append(' </Component>')
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create_folders = {make_id(p) + "___pycache__" for p in cache_directories[group]}
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remove_folders = {make_id(p2) for p1 in cache_directories[group] for p2 in chain((p1,), p1.parents)}
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create_folders.discard(".")
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remove_folders.discard(".")
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if create_folders or remove_folders:
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lines.append(' <Component Id="{}__pycache__folders" Directory="TARGETDIR" Guid="{}">'.format(group, uuid1()))
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lines.extend(' <CreateFolder Directory="{}" />'.format(p) for p in create_folders)
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lines.extend(' <RemoveFile Id="Remove_{0}_files" Name="*" On="uninstall" Directory="{0}" />'.format(p) for p in create_folders)
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lines.extend(' <RemoveFolder Id="Remove_{0}_folder" On="uninstall" Directory="{0}" />'.format(p) for p in create_folders | remove_folders)
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lines.append(' </Component>')
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lines.extend([
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' </ComponentGroup>',
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' </Fragment>',
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])
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lines.append('</Wix>')
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# Check if the file matches. If so, we don't want to touch it so
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# that we can skip rebuilding.
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try:
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with open(install_target, 'r') as f:
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if all(x.rstrip('\r\n') == y for x, y in zip_longest(f, lines)):
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print('File is up to date')
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return
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except IOError:
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pass
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with open(install_target, 'w') as f:
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f.writelines(line + '\n' for line in lines)
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print('Wrote {} lines to {}'.format(len(lines), install_target))
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if __name__ == '__main__':
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main(sys.argv[1], sys.argv[2])
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