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fgmeta/catalog/catalog.py
Edward d'Auvergne b8c05410e3 Catalogs: Rewrite of the craft zip creation using the Python zipfile module.
If a 'zip-excludes.lst' file is found in the craft's base directory, that will
overwrite the global catalog exclusion list.

Three new unit tests have been created to test the functionality.
2019-11-13 22:25:49 +01:00

395 lines
13 KiB
Python

#!/usr/bin/python
import argparse
import datetime
from fnmatch import fnmatch, translate
import lxml.etree as ET
import os
from os.path import exists, join, relpath
from os import walk
import re
import sgprops
import sys
import catalogTags
import zipfile
CATALOG_VERSION = 4
quiet = False
verbose = False
def warning(msg):
if not quiet:
print(msg)
def log(msg):
if verbose:
print(msg)
# xml node (robust) get text helper
def get_xml_text(e):
if e != None and e.text != None:
return e.text
else:
return ''
# return all available aircraft information from the set file as a
# dict
def scan_set_file(aircraft_dir, set_file, includes):
base_file = os.path.basename(set_file)
base_id = base_file[:-8]
set_path = os.path.join(aircraft_dir, set_file)
includes.append(aircraft_dir)
root_node = sgprops.readProps(set_path, includePaths = includes)
if not root_node.hasChild("sim"):
return None
sim_node = root_node.getChild("sim")
if sim_node == None:
return None
# allow -set.xml files to specifcially exclude themselves from
# the creation process, by setting <exclude-from-catalog>true</>
if (sim_node.getValue("exclude-from-catalog", False) == True):
return None
variant = {}
name = sim_node.getValue("description", None)
if (name == None or len(name) == 0):
warning("Set file " + set_file + " is missing a <description>, skipping")
return None
variant['name'] = name
variant['status'] = sim_node.getValue("status", None)
if sim_node.hasChild('authors'):
# aircraft has structured authors data, handle that
variant['authors'] = sim_node.getChild('authors')
# can have legacy author tag alongside new strucutred data for
# backwards FG compatability
if sim_node.hasChild('author'):
variant['author'] = sim_node.getValue("author", None)
if sim_node.hasChild('maintainers'):
variant['maintainers'] = sim_node.getChild('maintainers')
if sim_node.hasChild('urls'):
variant['urls'] = sim_node.getChild('urls')
if sim_node.hasChild('long-description'):
variant['description'] = sim_node.getValue("long-description", None)
variant['id'] = base_id
# allow -set.xml files to declare themselves as primary.
# we use this avoid needing a variant-of in every other -set.xml
variant['primary-set'] = sim_node.getValue('primary-set', False)
# extract and record previews for each variant
if sim_node.hasChild('previews'):
variant['previews'] = extract_previews(sim_node.getChild('previews'), aircraft_dir)
if sim_node.hasChild('rating'):
variant['rating'] = sim_node.getChild("rating")
if sim_node.hasChild('tags'):
variant['tags'] = extract_tags(sim_node.getChild('tags'), set_file)
if sim_node.hasChild('thumbnail'):
variant['thumbnail'] = sim_node.getValue("thumbnail", None)
variant['variant-of'] = sim_node.getValue("variant-of", None)
if sim_node.hasChild('minimum-fg-version'):
variant['minimum-fg-version'] = sim_node.getValue('minimum-fg-version', None)
#print ' ', variant
return variant
def extract_previews(previews_node, aircraft_dir):
result = []
for node in previews_node.getChildren("preview"):
previewType = node.getValue("type", None)
previewPath = node.getValue("path", None)
# check path exists in base-name-dir
fullPath = os.path.join(aircraft_dir, previewPath)
if not os.path.isfile(fullPath):
warning("Bad preview path, skipping:" + fullPath)
continue
result.append({'type':previewType, 'path':previewPath})
return result
def extract_tags(tags_node, set_path):
result = []
for node in tags_node.getChildren("tag"):
tag = node.value
# check tag is in the allowed list
if not catalogTags.isValidTag(tag):
warning("Unknown tag value:" + tag + " in " + set_path)
result.append(tag)
return result
# scan all the -set.xml files in an aircraft directory. Returns a
# package dict and a list of variants.
def scan_aircraft_dir(aircraft_dir, includes):
setDicts = []
primaryAircraft = []
package = None
files = os.listdir(aircraft_dir)
for file in sorted(files, key=lambda s: s.lower()):
if file.endswith('-set.xml'):
# print 'trying:', file
try:
d = scan_set_file(aircraft_dir, file, includes)
if d == None:
continue
except:
print "Skipping set file since couldn't be parsed:", os.path.join(aircraft_dir, file), sys.exc_info()[0]
continue
setDicts.append(d)
if d['primary-set']:
# ensure explicit primary-set aircraft goes first
primaryAircraft.insert(0, d)
elif d['variant-of'] == None:
primaryAircraft.append(d)
# print setDicts
if len(setDicts) == 0:
return None, None
# use the first one
if len(primaryAircraft) == 0:
print "Aircraft has no primary aircraft at all:", aircraft_dir
primaryAircraft = [setDicts[0]]
package = primaryAircraft[0]
if not 'thumbnail' in package:
if (os.path.exists(os.path.join(aircraft_dir, "thumbnail.jpg"))):
package['thumbnail'] = "thumbnail.jpg"
# variants is just all the set dicts except the first one
variants = setDicts
variants.remove(package)
return (package, variants)
# create an xml node with text content
def make_xml_leaf(name, text):
leaf = ET.Element(name)
if text != None:
if isinstance(text, (int, long)):
leaf.text = str(text)
else:
leaf.text = text
else:
leaf.text = ''
return leaf
def append_preview_nodes(node, variant, download_base, package_name):
if not 'previews' in variant:
return
for preview in variant['previews']:
preview_node = ET.Element('preview')
preview_url = download_base + 'previews/' + package_name + '_' + preview['path']
preview_node.append( make_xml_leaf('type', preview['type']) )
preview_node.append( make_xml_leaf('url', preview_url) )
preview_node.append( make_xml_leaf('path', preview['path']) )
node.append(preview_node)
def append_tag_nodes(node, variant):
if not 'tags' in variant:
return
for tag in variant['tags']:
node.append(make_xml_leaf('tag', tag))
def append_author_nodes(node, info):
if 'authors' in info:
node.append(info['authors']._createXMLElement())
if 'author' in info:
# traditional single author string
node.append( make_xml_leaf('author', info['author']) )
def make_aircraft_node(aircraftDirName, package, variants, downloadBase, mirrors):
#print "package:", package
#print "variants:", variants
package_node = ET.Element('package')
package_node.append( make_xml_leaf('name', package['name']) )
package_node.append( make_xml_leaf('status', package['status']) )
append_author_nodes(package_node, package)
if 'description' in package:
package_node.append( make_xml_leaf('description', package['description']) )
if 'minimum-fg-version' in package:
package_node.append( make_xml_leaf('minimum-fg-version', package['minimum-fg-version']) )
if 'rating' in package:
package_node.append(package['rating']._createXMLElement())
package_node.append( make_xml_leaf('id', package['id']) )
for variant in variants:
variant_node = ET.Element('variant')
package_node.append(variant_node)
variant_node.append( make_xml_leaf('id', variant['id']) )
variant_node.append( make_xml_leaf('name', variant['name']) )
if 'description' in variant:
variant_node.append( make_xml_leaf('description', variant['description']) )
if 'author' in variant:
variant_node.append( make_xml_leaf('author', variant['author']) )
if 'thumbnail' in variant:
# note here we prefix with the package name, since the thumbnail path
# is assumed to be unique within the package
thumbUrl = downloadBase + "thumbnails/" + aircraftDirName + '_' + variant['thumbnail']
variant_node.append(make_xml_leaf('thumbnail', thumbUrl))
variant_node.append(make_xml_leaf('thumbnail-path', variant['thumbnail']))
variantOf = variant['variant-of']
if variantOf is None:
variant_node.append(make_xml_leaf('variant-of', '_primary_'))
else:
variant_node.append(make_xml_leaf('variant-of', variantOf))
append_preview_nodes(variant_node, variant, downloadBase, aircraftDirName)
append_tag_nodes(variant_node, variant)
append_author_nodes(variant_node, variant)
package_node.append( make_xml_leaf('dir', aircraftDirName) )
# primary URL is first
download_url = downloadBase + aircraftDirName + '.zip'
package_node.append( make_xml_leaf('url', download_url) )
for m in mirrors:
mu = m + aircraftDirName + '.zip'
package_node.append( make_xml_leaf('url', mu) )
if 'thumbnail' in package:
thumbnail_url = downloadBase + 'thumbnails/' + aircraftDirName + '_' + package['thumbnail']
package_node.append( make_xml_leaf('thumbnail', thumbnail_url) )
package_node.append( make_xml_leaf('thumbnail-path', package['thumbnail']))
append_preview_nodes(package_node, package, downloadBase, aircraftDirName)
append_tag_nodes(package_node, package)
if 'maintainers' in package:
package_node.append(package['maintainers']._createXMLElement())
if 'urls' in package:
package_node.append(package['urls']._createXMLElement())
return package_node
def make_aircraft_zip(repo_path, craft_name, zip_file, global_zip_excludes, verbose=True):
"""Create a zip archive of the given aircraft."""
# Printout.
if verbose:
print("Zip file creation: %s.zip" % craft_name)
# Go to the directory of crafts to catalog.
savedir = os.getcwd()
os.chdir(repo_path)
# Clear out the old file.
if exists(zip_file):
os.remove(zip_file)
# Use the Python zipfile module to create the zip file.
zip_handle = zipfile.ZipFile(zip_file, 'w', zipfile.ZIP_DEFLATED)
# Find a per-craft exclude list.
craft_path = join(repo_path, craft_name)
exclude_file = join(craft_path, 'zip-excludes.lst')
if exists(exclude_file):
if verbose:
print("Found the craft specific exclusion list '%s'" % exclude_file)
# Otherwise use the catalog default exclusion list.
else:
exclude_file = global_zip_excludes
# Process the exclusion list and find all matching file names.
blacklist = fetch_zip_exclude_list(craft_name, craft_path, exclude_file)
# Walk over all craft files.
print_format = " %-30s '%s'"
for root, dirs, files in walk(craft_path):
# Loop over the files.
for file in files:
# The directory and relative and absolute paths.
dir = relpath(root, start=repo_path)
full_path = join(root, file)
rel_path = relpath(full_path, start=repo_path)
# Skip blacklist files or directories.
skip = False
if file == 'zip-excludes.lst':
if verbose:
print(print_format % ("Skipping the file:", join(dir, 'zip-excludes.lst')))
skip = True
if dir in blacklist:
if verbose:
print(print_format % ("Skipping the file:", join(dir, file)))
skip = True
for name in blacklist:
if fnmatch(rel_path, name):
if verbose:
print(print_format % ("Skipping the file:", rel_path))
skip = True
break
if skip:
continue
# Otherwise add the file.
zip_handle.write(rel_path)
# Clean up.
os.chdir(savedir)
zip_handle.close()
def fetch_zip_exclude_list(name, path, exclude_path):
"""Use Unix style path regular expression to find all files to exclude."""
# Init.
blacklist = []
file = open(exclude_path)
exclude_list = file.readlines()
file.close()
old_path = os.getcwd()
os.chdir(path)
# Process each exclusion path or regular expression, converting to Python RE objects.
reobj_list = []
for i in range(len(exclude_list)):
reobj_list.append(re.compile(translate(exclude_list[i].strip())))
# Recursively loop over all files, finding the ones to exclude.
for root, dirs, files in walk(path):
for file in files:
full_path = join(root, file)
rel_path = join(name, relpath(full_path, start=path))
# Skip Unix shell-style wildcard matches
for i in range(len(reobj_list)):
if reobj_list[i].match(rel_path):
blacklist.append(rel_path)
break
# Return to the original path.
os.chdir(old_path)
# Return the list.
return blacklist