package_linter/package_linter.py
2017-08-31 02:01:29 +02:00

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#!/usr/bin/env python3
# -*- coding: utf8 -*-
import sys
import os
import re
import json
import shlex
import urllib.request
import codecs
reader = codecs.getreader("utf-8")
return_code = 0
class c:
HEADER = '\033[95m'
OKBLUE = '\033[94m'
OKGREEN = '\033[92m'
WARNING = '\033[93m'
MAYBE_FAIL = '\033[96m'
FAIL = '\033[91m'
END = '\033[0m'
BOLD = '\033[1m'
UNDERLINE = '\033[4m'
def header(app_path):
print(c.UNDERLINE + c.HEADER + c.BOLD +
"YUNOHOST APP PACKAGE LINTER\n", c.END,
"App packaging documentation: https://yunohost.org/#/packaging_apps\n",
"App package example: https://github.com/YunoHost/example_ynh\n",
"Checking " + c.BOLD + app_path + c.END + " package\n")
def print_right(str):
print(c.OKGREEN + "", str, c.END)
def print_warning(str):
print(c.WARNING + "!", str, c.END)
def print_wrong(str, reliable=True):
if reliable:
global return_code
return_code = 1
print(c.FAIL + "", str, c.END)
else:
print(c.MAYBE_FAIL + "?", str, c.END)
def urlopen(url):
try:
conn = urllib.request.urlopen(url)
except urllib.error.HTTPError as e:
return {'content': '', 'code': e.code}
except urllib.error.URLError as e:
print('URLError')
return {'content': conn.read().decode('UTF8'), 'code': 200}
def check_files_exist(app_path):
"""
Check files exist
'backup' and 'restore' scripts are mandatory
"""
print(c.BOLD + c.HEADER + ">>>> MISSING FILES <<<<" + c.END)
fnames = ("manifest.json", "scripts/install", "scripts/remove",
"scripts/upgrade", "scripts/backup", "scripts/restore", "LICENSE",
"README.md")
for nbr, fname in enumerate(fnames):
if not check_file_exist(app_path + "/" + fname):
if nbr != 4 and nbr != 5:
print_wrong(fname)
else:
print_warning(fname)
def check_file_exist(file_path):
return 1 if os.path.isfile(file_path) and os.stat(file_path).st_size > 0 else 0
def read_file(file_path):
f = open(file_path)
# remove every comments and empty lines from the file content to avoid
# false positives
file = shlex.shlex(f, False)
#file = filter(None, re.sub("#.*[^\n]", "", f.read()).splitlines())
return file
def check_source_management(app_path):
print(c.BOLD + c.HEADER + "\n>>>> SOURCES MANAGEMENT <<<<" + c.END)
DIR = os.path.join(app_path, "sources")
# Check if there is more than six files on 'sources' folder
if os.path.exists(os.path.join(app_path, "sources")) and \
len([name for name in os.listdir(DIR) if os.path.isfile(os.path.join(DIR, name))]) > 5:
print_warning("[YEP-3.3] Upstream app sources shouldn't be stored on this "
"'sources' folder of this git repository as a copy/paste."
"\nAt installation, the package should download sources "
"from upstream via 'ynh_setup_source'.\nSee "
"https://dev.yunohost.org/issues/201#Conclusion-chart")
def is_license_mention_in_readme(path):
readme_path = os.path.join(path, 'README.md')
if os.path.isfile(readme_path):
return "LICENSE" in open(readme_path).read()
return False
def check_manifest(path):
manifest = os.path.join(path, 'manifest.json')
if not os.path.exists(manifest):
return
print(c.BOLD + c.HEADER + "\n>>>> MANIFEST <<<<" + c.END)
"""
Check if there is no comma syntax issue
"""
try:
with open(manifest, encoding='utf-8') as data_file:
manifest = json.loads(data_file.read())
except:
print_wrong("[YEP-2.1] Syntax (comma) or encoding issue with manifest.json. "
"Can't check file.")
fields = ("name", "id", "packaging_format", "description", "url", "version",
"license", "maintainer", "requirements", "multi_instance",
"services", "arguments")
for field in fields:
if field not in manifest:
print_warning("[YEP-2.1] \"" + field + "\" field is missing")
"""
Check values in keys
"""
if "packaging_format" not in manifest:
print_wrong("[YEP-2.1] \"packaging_format\" key is missing")
elif not isinstance(manifest["packaging_format"], int):
print_wrong("[YEP-2.1] \"packaging_format\": value isn't an integer type")
elif manifest["packaging_format"] != 1:
print_wrong("[YEP-2.1] \"packaging_format\" field: current format value is '1'")
# YEP 1.1 Name is app
if "id" in manifest:
if not re.match('^[a-z1-9]((_|-)?[a-z1-9])+$', manifest["id"]):
print_wrong("[YEP-1.1] 'id' field '%s' should respect this regex "
"'^[a-z1-9]((_|-)?[a-z1-9])+$'")
if "name" in manifest:
if len(manifest["name"]) > 22 :
print_warning("[YEP-1.1] The 'name' field shouldn't be too long to be"
" able to be with one line in the app list. The most "
"current bigger name is actually compound of 22 characters.")
# YEP 1.2 Put the app in a weel known repo
if "id" in manifest:
official_list_url = "https://raw.githubusercontent.com/YunoHost/apps/master/official.json"
official_list = json.loads(urlopen(official_list_url)['content'])
community_list_url = "https://raw.githubusercontent.com/YunoHost/apps/master/community.json"
community_list = json.loads(urlopen(community_list_url)['content'])
if manifest["id"] not in official_list and manifest["id"] not in community_list:
print_warning("[YEP-1.2] This app is not registered in official or community applications")
# YEP 1.3 License
if "license" in manifest:
for license in manifest['license'].replace('&', ',').split(','):
code_license = '<code property="spdx:licenseId">' + license + '</code>'
link = "https://spdx.org/licenses/"
if license == "nonfree":
print_warning("[YEP-1.3] The correct value for non free license in license"
" field is 'non-free' and not 'nonfree'")
license = "non-free"
if license in ["free", "non-free", "dep-non-free"]:
if not is_license_mention_in_readme(path):
print_warning("[YEP-1.3] The use of '%s' in license field implies to "
"write something about the license in your "
"README.md" % (license))
if license == "non-free" or "dep-non-free":
print_warning("[YEP-1.3] 'non-free' apps can't be officialised."
"The way to integrate them or not is always "
"in discussion notably about apps with non "
"free dependencies")
elif code_license not in urlopen(link)['content']:
print_warning("[YEP-1.3] The license '%s' is not registered in "
"https://spdx.org/licenses/ . It can be a typo error."
"If no, you should write free or non-free in place and"
" gice more explanation in README.md" % (license))
# YEP 1.4 Inform if we continue to maintain the app
# YEP 1.5 Update regularly the app status
# YEP 1.6 Check regularly the evolution of the upstream
# YEP 1.7 - Add an app to the YunoHost-Apps organization
if "id" in manifest:
repo = "https://github.com/YunoHost-Apps/%s_ynh" % (manifest["id"])
is_not_added_to_org = urlopen(repo)['code'] == 404
if is_not_added_to_org:
print_warning("[YEP-1.7] You should add your app in the "
"YunoHost-Apps organisation.")
# YEP 1.8 Publish test request
# YEP 1.9 Document app
if "description" in manifest and "name" in manifest:
if manifest["description"] == manifest["name"]:
print_warning("[YEP-1.9] You should write a good description of the"
"app (1 line is enough).")
#TODO test a specific template in README.md
# YEP 1.10 Garder un historique de version propre
# YEP 1.11 Cancelled
# YEP 2.1
if "multi_instance" in manifest and manifest["multi_instance"] != 1 and manifest["multi_instance"] != 0:
print_wrong(
"[YEP-2.1] \"multi_instance\" field must be boolean type values 'true' or 'false' and not string type")
if "services" in manifest:
services = ("nginx", "php5-fpm", "mysql", "uwsgi", "metronome",
"postfix", "dovecot") # , "rspamd", "rmilter")
for service in manifest["services"]:
if service not in services:
print_warning("[YEP-2.1]" + service + " service may not exist")
if "install" in manifest["arguments"]:
types = ("domain", "path", "password", "user", "admin")
for nbr, typ in enumerate(types):
for install_arg in manifest["arguments"]["install"]:
if typ == install_arg["name"]:
if "type" not in install_arg:
print_wrong("[YEP-2.1] You should specify the type of the key with %s" % (typ))
def check_script(path, script_name, script_nbr):
script_path = path + "/scripts/" + script_name
if check_file_exist(script_path) == 0:
return
print(c.BOLD + c.HEADER + "\n>>>>",
script_name.upper(), "SCRIPT <<<<" + c.END)
check_non_helpers_usage(read_file(script_path))
if script_nbr < 5:
check_verifications_done_before_modifying_system(read_file(script_path))
check_set_usage(script_name, read_file(script_path))
#check_arg_retrieval(script.copy())
def check_verifications_done_before_modifying_system(script):
"""
Check if verifications are done before modifying the system
"""
ok = True
modify_cmd = ''
cmds = ("cp", "mkdir", "rm", "chown", "chmod", "apt-get", "apt", "service",
"find", "sed", "mysql", "swapon", "mount", "dd", "mkswap", "useradd")
cmds_before_exit = []
is_exit = False
for cmd in script:
if "ynh_die" == cmd or "exit " == cmd:
is_exit = True
break
cmds_before_exit.append(cmd)
if not is_exit:
return
for cmd in cmds_before_exit:
if "ynh_die" == cmd or "exit " == cmd:
break
if not ok or cmd in cmds:
modify_cmd = cmd
ok = False
break
if not ok:
print_wrong("[YEP-2.4] 'ynh_die' or 'exit' command is executed with system modification before (cmd '%s').\n"
"This system modification is an issue if a verification exit the script.\n"
"You should move this verification before any system modification." % (modify_cmd) , False)
def check_non_helpers_usage(script):
"""
check if deprecated commands are used and propose helpers:
- 'yunohost app setting' > ynh_app_setting_(set,get,delete)
- 'exit' > 'ynh_die'
"""
ok = True
#TODO
#for line_nbr, cmd in script:
# if "yunohost app setting" in cmd:
# print_wrong("[YEP-2.11] Line {}: 'yunohost app setting' command is deprecated,"
# " please use helpers ynh_app_setting_(set,get,delete)."
# .format(line_nbr + 1))
# ok = False
if not ok:
print("Helpers documentation: "
"https://yunohost.org/#/packaging_apps_helpers\n"
"code: https://github.com/YunoHost/yunohost/…helpers")
if "exit" in script:
print_wrong("[YEP-2.4] 'exit' command shouldn't be used."
"Use 'ynh_die' helper instead.")
def check_set_usage(script_name, script):
present = False
if script_name in ["backup", "remove"]:
present = "ynh_abort_if_errors" in script or "set -eu" in script
else:
present = "ynh_abort_if_errors" in script
if script_name == "remove":
# Remove script shouldn't use set -eu or ynh_abort_if_errors
if present:
print_wrong("[YEP-2.4] set -eu or ynh_abort_if_errors is present. "
"If there is a crash it could put yunohost system in "
"invalidated states. For details, look at "
"https://dev.yunohost.org/issues/419")
else:
if not present:
print_wrong("[YEP-2.4] ynh_abort_if_errors is missing. For details,"
"look at https://dev.yunohost.org/issues/419")
def check_arg_retrieval(script):
"""
Check arguments retrival from manifest is done with env var $YNH_APP_ARG_* and not with arg $1
env var was found till line ~30 on scripts. Stop file checking at L30: This could avoid wrong positives
Check only from '$1' to '$10' as 10 arg retrieval is already a lot.
"""
present = False
for cmd in script:
if cmd =='$' and script.get_token() in [str(x) for x in range(1, 10)]:
present = True
break
if present:
print_wrong("Argument retrieval from manifest with $1 is deprecated. You may use $YNH_APP_ARG_*")
print_wrong("For more details see: https://yunohost.org/#/packaging_apps_arguments_management_en")
if __name__ == '__main__':
os.system("clear")
if len(sys.argv) != 2:
print("Give one app package path.")
exit()
# "or" trick to always be 1 if 1 is present:
# 1 or 0 = 1
# 1 or 1 = 1
# 0 or 1 = 1
# 0 or 0 = 0
app_path = sys.argv[1]
header(app_path)
check_files_exist(app_path)
check_source_management(app_path)
check_manifest(app_path) # + "/manifest.json")
scripts = ["install", "remove", "upgrade", "backup", "restore"]
for (dirpath, dirnames, filenames) in os.walk(os.path.join(app_path, "scripts")):
for filename in filenames:
if filename not in scripts and filename[-4:] != ".swp":
scripts.append(filename)
for script_nbr, script in enumerate(scripts):
check_script(app_path, script, script_nbr)
sys.exit(return_code)