Merge pull request #26 from Deric-W/compiler-subsystem

Compiler subsystem

Author: Deric-W

.github/workflows/Tests.yaml

@@ -10,7 +10,7 @@ jobs:
   Test:
     strategy:
       matrix:
-        python-version: ["3.5", "3.6", "3.7","3.8", "3.9", "3.10.0-alpha.4", "pypy3"]
+        python-version: ["3.7", "3.8", "3.9", "3.10.0-alpha.4", "pypy-3.7"]
         os: [ubuntu-latest, windows-latest]
 
     runs-on: ${{ matrix.os }}
@@ -50,34 +50,29 @@ jobs:
       uses: codecov/codecov-action@v1
       with:
         flags: ${{ runner.os }}
+  
+  Typecheck:
+    runs-on: ubuntu-latest
+    steps:
+    # setup
+    - name: Checkout Repository
+      uses: actions/checkout@v2
+
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: "3.9"
 
+    # dependencies
+    - name: Restore pip cache
+      uses: actions/cache@v2
+      with:
+        path: ~/.cache/pip
+        key: ${{ runner.os }}-pip-${{ hashFiles('setup.cfg') }}
+
+    - name: Install test dependencies
+      run: python -m pip --cache-dir ~/.cache/pip install --quiet mypy
 
-#  Typecheck:  # disabled until we have type hints
-#    runs-on: ubuntu-latest
-#    strategy:
-#      matrix:
-#        python-version: ["3.5", "3.6", "3.7", "3.8", "3.9", "3.10.0-alpha.4", "pypy3"]
-#
-#    steps:
-#    # setup
-#    - name: Checkout Repository
-#      uses: actions/checkout@v2
-#    
-#    - name: Set up Python ${{ matrix.python-version }}
-#      uses: actions/setup-python@v2
-#      with:
-#        python-version: ${{ matrix.python-version }}
-#
-#    # dependencies
-#    - name: Restore pip cache
-#      uses: actions/cache@v2
-#      with:
-#        path: ~/.cache/pip
-#        key: ${{ runner.os }}-pip-${{ hashFiles('setup.cfg') }}
-#
-#    - name: Install lint dependencies
-#      run: python -m pip --cache-dir ~/.cache/pip install --quiet mypy
-#    
-#    # lint
-#    - name: run MyPy
-#      run: python -m mypy --config-file setupg.cfg .
+    # check
+    - name: run MyPy
+      run: python -m mypy --config-file setup.cfg -p pyhp

.gitignore

@@ -1,5 +1,6 @@
 */__pycache__
+*.pyc
+.coverage
+.htmlcov
 dist
-notes.txt
-Test.html
-
+**/.vscode/**

README.md

@@ -44,10 +44,10 @@ The script is called either by the configuration of the web server or a shebang
    initialization parameters and provides the following methods:
      - `is_available`, wich returns a boolean indicating if the handler can be used
      - `is_outdated`, wich returns a boolean indicating if the cache needs to be renewed
-     - `save`, wich takes an iterator as argument and saves it in the cache
-     - `load`, wich loads an iterator from the cache
-     - `close`, wich does cleanup tasks
-  - note that the iterator may contain code objects which can't be pickled
+     - `save`, wich takes an code object as an argument and saves it in the cache
+     - `load`, wich loads an code object from the cache
+     - `close`, wich does cleanup tasks and gets called when used as a context manager
+  - note that code objects have to support the pickle protocol
   - examples are available in the *cache_handlers* directory
 
   ## Installation

cache_handlers/files_mtime.py

@@ -2,7 +2,7 @@
 
 """PyHP cache handler (files with modification time)"""
 
-import marshal  # not pickle because only marshal supports code objects
+import pickle
 import os.path
 from os import makedirs
 from time import time
@@ -16,6 +16,12 @@ def __init__(self, cache_path, file_path, config):
         self.ttl = config.getint("ttl")
         self.max_size = config.getint("max_size")
 
+    def __enter__(self):
+        return self
+
+    def __exit__(self, type, value, traceback):
+        self.close()
+
     def get_cachedir_size(self):        # get size of cache directory (with all sub directories) in Mbytes
         size = 0
         for dirpath, dirnames, filenames in os.walk(self.cache_prefix, followlinks=False):
@@ -40,14 +46,13 @@ def is_outdated(self):      # return True if cache is not created or needs refre
 
     def load(self):  # load sections
         with open(self.cache_path, "rb") as cache:
-            code = marshal.load(cache)
-        return code
+            return pickle.load(cache)
 
     def save(self, code):   # save sections
         if not os.path.isdir(os.path.dirname(self.cache_path)):     # directories not already created
             makedirs(os.path.dirname(self.cache_path), exist_ok=True)   # ignore already created directories
         with open(self.cache_path, "wb") as cache:
-            marshal.dump(code, cache)
+            pickle.dump(code, cache)
 
     def close(self):
         pass    # nothing to do

debian/changelog

@@ -1,3 +1,15 @@
+pyhp (2.1-1) stable; urgency=low
+
+  * fifth release
+  * add bytecode code object implementation
+  * change CacheHandlers to support the context manager protocol
+  * change CacheHandlers to work with code objects directly
+  * replace pyhp.embed with pyhp.compiler
+  * fix errors during compilation and execution having wrong line numbers
+  * fix code objects lacking proper module constants
+
+ -- Eric Wolf <[email protected]>  Wed, 27 Jan 2021 19:17:00 +0100
+
 pyhp (2.0-1) stable; urgency=low
 
   * fourth release

debian/control

@@ -3,7 +3,7 @@ Version: {0}
 Architecture: all
 Maintainer: Eric Wolf <[email protected]>
 Installed-Size: {1}
-Depends: python3:any (>= 3.5)
+Depends: python3:any (>= 3.7)
 Suggests: apache2
 Section: web
 Priority: optional

debian/copyright

@@ -2,9 +2,9 @@ Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
 Upstream-Name: pyhp
 Upstream-Contact: Eric Wolf <[email protected]>
 Source: https://github.com/Deric-W/PyHP
-Copyright: 2019 Eric Wolf
-License: Expat
+Copyright: 2021 Eric Wolf
+License: GPLv3
 
 Files: *
-Copyright: 2019 Eric Wolf
-License: Expat
+Copyright: 2021 Eric Wolf
+License: GPLv3

debian/pyhp

@@ -1,12 +1,28 @@
 #!/usr/bin/python3
 
-# script to support the pyhp command
+"""Script to support the pyhp command"""
+# This script is part of PyHP (https://github.com/Deric-W/PyHP)
+# Copyright (C) 2021  Eric Wolf
+
+# 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, version 3.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+# SPDX-License-Identifier: GPL-3.0-only
 
 import sys
-from pyhp.main import main, get_args
+from pyhp.main import main, argparser
 
 # get cli arguments
-args = get_args()
+args = argparser.parse_args()
 
-# execute main with file_path as normal argument and the rest as keyword arguments
-sys.exit(main(args.pop("file_path"), **args))
+# execute main
+sys.exit(
+    main(
+        args.file,
+        args.caching,
+        args.config
+    )
+)

pyhp.conf

@@ -2,9 +2,18 @@
 # This file uses the INI syntax
 
 [parser]
-# regex to isolate the code
-# escape sequences are processed
-regex = \\<\\?pyhp[\\s](.*?)[\\s]\\?\\>
+# regex matching the start and end of a code section
+# escape sequences are processed (at the cost of missing unicode support)
+start = <\\?pyhp\\s
+end = \\s\\?>
+
+# if python code should be stripped of a starting indentation
+dedent = True
+
+[compiler]
+# optimization level to be used with the builtin compile()
+# all levels: https://docs.python.org/3/library/functions.html#compile
+optimization_level = -1
 
 [request]
 # order to fill up REQUEST, starting left and missing methods are not filled in
@@ -40,39 +49,3 @@ path = ~/.cache/pyhp
 
 # path to handler	
 handler_path = /lib/pyhp/cache_handlers/files_mtime.py
-
-[sessions]
-enable = True
-auto_start = False
-
-# path argument for handler
-path = ~/.pyhp/sessions
-
-# session handler + directory containing the session handler
-handler = files
-handler_path = /lib/pyhp/session_handlers
-
-# lenght of the session id
-sid_length = 32
-
-# how to serialize/unserialize session data, pickle or json
-serialize_handler = pickle
-
-# config for session cookie
-name = PyHPSESSID
-cookie_lifetime = 0
-cookie_path = /
-cookie_domain =
-cookie_secure = True
-cookie_httponly = False
-cookie_samesite = 
-
-# probability/divisor = probability for carrying out a garbage collection at startup
-gc_probability = 1
-gc_divisor = 100
-
-# max lifetime of session since last use
-gc_maxlifetime = 1440
-
-# write only if data has changed
-lazy_write = True

pyhp/__init__.py

@@ -13,14 +13,15 @@
 
 # package metadata
 # needs to be defined before .main is imported
-__version__ = "2.0"
+__version__ = "2.1"
 __author__ = "Eric Wolf"
 __maintainer__ = "Eric Wolf"
-__license__ = "MIT"
+__license__ = "GPLv3"
 __email__ = "[email protected]"  # please dont use for spam :(
 __contact__ = "https://github.com/Deric-W/PyHP"
 
-# import all submodules
-from . import embed
-from . import libpyhp
-from . import main
+__all__ = (
+    "compiler",
+    "libpyhp",
+    "main"
+)