Use contextlib to safely delete dirs in importtasks

This commit is contained in:
rubenwardy 2020-12-03 21:07:42 +00:00
parent 7a584e1a6e
commit 6841a295ff
2 changed files with 135 additions and 130 deletions

@ -15,7 +15,7 @@
# along with this program. If not, see <https://www.gnu.org/licenses/>.
import flask, json, os, git, tempfile, shutil, gitdb
import flask, json, os, git, tempfile, shutil, gitdb, contextlib
from git import GitCommandError
from git_archive_all import GitArchiver
from flask_sqlalchemy import SQLAlchemy
@ -30,68 +30,7 @@ from app.tasks import celery, TaskError
from app.utils import randomString, getExtension
from .minetestcheck import build_tree, MinetestCheckError, ContentType
from .minetestcheck.config import parse_conf
krock_list_cache = None
krock_list_cache_by_name = None
def getKrockList():
global krock_list_cache
global krock_list_cache_by_name
if krock_list_cache is None:
contents = urllib.request.urlopen("https://krock-works.uk.to/minetest/modList.php").read().decode("utf-8")
list = json.loads(contents)
def h(x):
if not ("title" in x and "author" in x and \
"topicId" in x and "link" in x and x["link"] != ""):
return False
import re
m = re.search("\[([A-Za-z0-9_]+)\]", x["title"])
if m is None:
return False
x["name"] = m.group(1)
return True
def g(x):
return {
"title": x["title"],
"author": x["author"],
"name": x["name"],
"topicId": x["topicId"],
"link": x["link"],
}
krock_list_cache = [g(x) for x in list if h(x)]
krock_list_cache_by_name = {}
for x in krock_list_cache:
if not x["name"] in krock_list_cache_by_name:
krock_list_cache_by_name[x["name"]] = []
krock_list_cache_by_name[x["name"]].append(x)
return krock_list_cache, krock_list_cache_by_name
def findModInfo(author, name, link):
list, lookup = getKrockList()
if name is not None and name in lookup:
if len(lookup[name]) == 1:
return lookup[name][0]
for x in lookup[name]:
if x["author"] == author:
return x
if link is not None and len(link) > 15:
for x in list:
if link in x["link"]:
return x
return None
from .krocklist import getKrockList, findModInfo
def generateGitURL(urlstr):
@ -100,16 +39,20 @@ def generateGitURL(urlstr):
return "http://:@" + netloc + path + query
@contextlib.contextmanager
def getTempDir():
return os.path.join(tempfile.gettempdir(), randomString(10))
temp = os.path.join(tempfile.gettempdir(), randomString(10))
yield temp
shutil.rmtree(temp)
# Clones a repo from an unvalidated URL.
# Returns a tuple of path and repo on sucess.
# Throws `TaskError` on failure.
# Caller is responsible for deleting returned directory.
@contextlib.contextmanager
def cloneRepo(urlstr, ref=None, recursive=False):
gitDir = getTempDir()
gitDir = os.path.join(tempfile.gettempdir(), randomString(10))
err = None
try:
@ -129,7 +72,9 @@ def cloneRepo(urlstr, ref=None, recursive=False):
for submodule in repo.submodules:
submodule.update(init=True)
return gitDir, repo
yield repo
shutil.rmtree(gitDir)
return
except GitCommandError as e:
# This is needed to stop the backtrace being weird
@ -145,15 +90,12 @@ def cloneRepo(urlstr, ref=None, recursive=False):
@celery.task()
def getMeta(urlstr, author):
gitDir, _ = cloneRepo(urlstr, recursive=True)
with cloneRepo(urlstr, recursive=True) as repo:
try:
tree = build_tree(gitDir, author=author, repo=urlstr)
tree = build_tree(repo.working_tree_dir, author=author, repo=urlstr)
except MinetestCheckError as err:
raise TaskError(str(err))
shutil.rmtree(gitDir)
result = {}
result["name"] = tree.name
result["provides"] = tree.getModNames()
@ -249,17 +191,13 @@ def updateMetaFromRelease(self, id, path):
print("updateMetaFromRelease: {} for {}/{}" \
.format(id, release.package.author.display_name, release.package.name))
temp = getTempDir()
try:
with getTempDir() as temp:
with ZipFile(path, 'r') as zip_ref:
zip_ref.extractall(temp)
postReleaseCheckUpdate(self, release, temp)
db.session.commit()
finally:
shutil.rmtree(temp)
@celery.task(bind=True)
def checkZipRelease(self, id, path):
@ -269,8 +207,7 @@ def checkZipRelease(self, id, path):
elif release.package is None:
raise TaskError("No package attached to release")
temp = getTempDir()
try:
with getTempDir() as temp:
with ZipFile(path, 'r') as zip_ref:
zip_ref.extractall(temp)
@ -280,9 +217,6 @@ def checkZipRelease(self, id, path):
release.approve(release.package.author)
db.session.commit()
finally:
shutil.rmtree(temp)
@celery.task(bind=True)
def makeVCSRelease(self, id, branch):
@ -292,16 +226,14 @@ def makeVCSRelease(self, id, branch):
elif release.package is None:
raise TaskError("No package attached to release")
gitDir, repo = cloneRepo(release.package.repo, ref=branch, recursive=True)
with cloneRepo(release.package.repo, ref=branch, recursive=True) as repo:
postReleaseCheckUpdate(self, release, repo.working_tree_dir)
postReleaseCheckUpdate(self, release, gitDir)
try:
filename = randomString(10) + ".zip"
destPath = os.path.join(app.config["UPLOAD_DIR"], filename)
assert(not os.path.isfile(destPath))
archiver = GitArchiver(force_sub=True, main_repo_abspath=gitDir)
archiver = GitArchiver(force_sub=True, main_repo_abspath=repo.working_tree_dir)
archiver.create(destPath)
assert(os.path.isfile(destPath))
@ -314,8 +246,6 @@ def makeVCSRelease(self, id, branch):
updateMetaFromRelease.delay(release.id, destPath)
return release.url
finally:
shutil.rmtree(gitDir)
@celery.task()
@ -324,18 +254,10 @@ def importRepoScreenshot(id):
if package is None or package.state == PackageState.DELETED:
raise Exception("Unexpected none package")
# Get URL Maker
try:
gitDir, _ = cloneRepo(package.repo)
except TaskError as e:
# ignore download errors
print(e)
return None
# Find and import screenshot
try:
with cloneRepo(package.repo) as repo:
for ext in ["png", "jpg", "jpeg"]:
sourcePath = gitDir + "/screenshot." + ext
sourcePath = repo.working_tree_dir + "/screenshot." + ext
if os.path.isfile(sourcePath):
filename = randomString(10) + "." + ext
destPath = os.path.join(app.config["UPLOAD_DIR"], filename)
@ -350,8 +272,11 @@ def importRepoScreenshot(id):
db.session.commit()
return "/uploads/" + filename
finally:
shutil.rmtree(gitDir)
except TaskError as e:
# ignore download errors
print(e)
pass
print("screenshot.png does not exist")
return None

80
app/tasks/krocklist.py Normal file

@ -0,0 +1,80 @@
# ContentDB
# Copyright (C) 2018-20 rubenwardy
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
import json
import urllib.request
krock_list_cache = None
krock_list_cache_by_name = None
def getKrockList():
global krock_list_cache
global krock_list_cache_by_name
if krock_list_cache is None:
contents = urllib.request.urlopen("https://krock-works.uk.to/minetest/modList.php").read().decode("utf-8")
list = json.loads(contents)
def h(x):
if not ("title" in x and "author" in x and \
"topicId" in x and "link" in x and x["link"] != ""):
return False
import re
m = re.search(r"\[([A-Za-z0-9_]+)\]", x["title"])
if m is None:
return False
x["name"] = m.group(1)
return True
def g(x):
return {
"title": x["title"],
"author": x["author"],
"name": x["name"],
"topicId": x["topicId"],
"link": x["link"],
}
krock_list_cache = [g(x) for x in list if h(x)]
krock_list_cache_by_name = {}
for x in krock_list_cache:
if not x["name"] in krock_list_cache_by_name:
krock_list_cache_by_name[x["name"]] = []
krock_list_cache_by_name[x["name"]].append(x)
return krock_list_cache, krock_list_cache_by_name
def findModInfo(author, name, link):
list, lookup = getKrockList()
if name is not None and name in lookup:
if len(lookup[name]) == 1:
return lookup[name][0]
for x in lookup[name]:
if x["author"] == author:
return x
if link is not None and len(link) > 15:
for x in list:
if link in x["link"]:
return x
return None