Mercurial > p > roundup > code
annotate roundup/dist/command/build_scripts.py @ 5543:bc3e00a3d24b
MySQL backend fixes for Python 3.
With Python 2, text sent to and from MySQL is treated as bytes in
Python. The database may be recorded by MySQL as having some other
encoding (latin1 being the default in some MySQL versions - Roundup
does not set an encoding explicitly, unlike in back_postgresql), but
as long as MySQL's notion of the connection encoding agrees with its
notion of the database encoding, no conversions actually take place
and the bytes are stored and returned as-is.
With Python 3, text sent to and from MySQL is treated as Python
Unicode strings. When the database and connection encoding is latin1,
that means the bytes stored in the database under Python 2 are
interpreted as latin1 and converted from that to Unicode, producing
incorrect results for any non-ASCII characters; furthermore, if trying
to store new non-ASCII data in the database under Python 3, any
non-latin1 characters produce errors.
This patch arranges for both the connection and database character
sets to be UTF-8 when using Python 3, and documents a need to export
and import the database when moving from Python 2 to Python 3 with
this backend.
| author | Joseph Myers <jsm@polyomino.org.uk> |
|---|---|
| date | Sun, 16 Sep 2018 16:19:20 +0000 |
| parents | 12baa5b9b597 |
| children |
| rev | line source |
|---|---|
| 4068 | 1 # |
| 2 # Copyright (C) 2009 Stefan Seefeld | |
| 3 # All rights reserved. | |
| 4 # For license terms see the file COPYING.txt. | |
| 5 # | |
| 6 from distutils.command.build_scripts import build_scripts as base | |
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7 from distutils import log |
| 4068 | 8 import sys, os, string |
| 9 | |
| 10 class build_scripts(base): | |
| 11 """ Overload the build_scripts command and create the scripts | |
| 12 from scratch, depending on the target platform. | |
| 13 | |
| 14 You have to define the name of your package in an inherited | |
| 15 class (due to the delayed instantiation of command classes | |
| 16 in distutils, this cannot be passed to __init__). | |
| 17 | |
| 18 The scripts are created in an uniform scheme: they start the | |
| 19 run() function in the module | |
| 20 | |
| 21 <packagename>.scripts.<mangled_scriptname> | |
| 22 | |
| 23 The mangling of script names replaces '-' and '/' characters | |
| 24 with '-' and '.', so that they are valid module paths. | |
| 25 | |
| 26 If the target platform is win32, create .bat files instead of | |
| 27 *nix shell scripts. Target platform is set to "win32" if main | |
| 28 command is 'bdist_wininst' or if the command is 'bdist' and | |
| 29 it has the list of formats (from command line or config file) | |
| 30 and the first item on that list is wininst. Otherwise | |
| 31 target platform is set to current (build) platform. | |
| 32 """ | |
| 33 package_name = 'roundup' | |
| 34 | |
| 35 def initialize_options(self): | |
| 36 base.initialize_options(self) | |
| 37 self.script_preamble = None | |
| 38 self.target_platform = None | |
| 39 self.python_executable = None | |
| 40 | |
| 41 def finalize_options(self): | |
| 42 base.finalize_options(self) | |
| 43 cmdopt=self.distribution.command_options | |
| 44 | |
| 45 # find the target platform | |
| 46 if self.target_platform: | |
| 47 # TODO? allow explicit setting from command line | |
| 48 target = self.target_platform | |
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49 if "bdist_wininst" in cmdopt: |
| 4068 | 50 target = "win32" |
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51 elif "formats" in cmdopt.get("bdist", {}): |
| 4068 | 52 formats = cmdopt["bdist"]["formats"][1].split(",") |
| 53 if formats[0] == "wininst": | |
| 54 target = "win32" | |
| 55 else: | |
| 56 target = sys.platform | |
| 57 if len(formats) > 1: | |
| 58 self.warn( | |
| 59 "Scripts are built for %s only (requested formats: %s)" | |
| 60 % (target, ",".join(formats))) | |
| 61 else: | |
| 62 # default to current platform | |
| 63 target = sys.platform | |
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64 self.target_platform = target |
| 4068 | 65 |
| 66 # for native builds, use current python executable path; | |
| 67 # for cross-platform builds, use default executable name | |
| 68 if self.python_executable: | |
| 69 # TODO? allow command-line option | |
| 70 pass | |
| 71 if target == sys.platform: | |
| 72 self.python_executable = os.path.normpath(sys.executable) | |
| 73 else: | |
| 74 self.python_executable = "python" | |
| 75 | |
| 76 # for windows builds, add ".bat" extension | |
| 77 if target == "win32": | |
| 78 # *nix-like scripts may be useful also on win32 (cygwin) | |
| 79 # to build both script versions, use: | |
| 80 #self.scripts = list(self.scripts) + [script + ".bat" | |
| 81 # for script in self.scripts] | |
| 82 self.scripts = [script + ".bat" for script in self.scripts] | |
| 83 | |
| 84 # tweak python path for installations outside main python library | |
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85 if "prefix" in cmdopt.get("install", {}): |
| 4068 | 86 prefix = os.path.expanduser(cmdopt['install']['prefix'][1]) |
| 87 version = '%d.%d'%sys.version_info[:2] | |
| 88 self.script_preamble = """ | |
| 89 import sys | |
| 90 sys.path.insert(1, "%s/lib/python%s/site-packages") | |
| 91 """%(prefix, version) | |
| 92 else: | |
| 93 self.script_preamble = '' | |
| 94 | |
| 95 def copy_scripts(self): | |
| 96 """ Create each script listed in 'self.scripts' | |
| 97 """ | |
| 98 | |
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99 try: |
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100 # Python 3. |
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101 maketrans = str.maketrans |
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102 except AttributeError: |
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103 # Python 2. |
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parents:
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104 maketrans = string.maketrans |
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12baa5b9b597
Python 3 preparation: avoid string.translate() and string.maketrans().
Joseph Myers <jsm@polyomino.org.uk>
parents:
5381
diff
changeset
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105 to_module = maketrans('-/', '_.') |
| 4068 | 106 |
| 107 self.mkpath(self.build_dir) | |
| 108 for script in self.scripts: | |
| 109 outfile = os.path.join(self.build_dir, os.path.basename(script)) | |
| 110 | |
| 111 #if not self.force and not newer(script, outfile): | |
| 112 # self.announce("not copying %s (up-to-date)" % script) | |
| 113 # continue | |
| 114 | |
| 115 if self.dry_run: | |
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parents:
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116 log.info("would create %s" % outfile) |
| 4068 | 117 continue |
| 118 | |
| 119 module = os.path.splitext(os.path.basename(script))[0] | |
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Joseph Myers <jsm@polyomino.org.uk>
parents:
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diff
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120 module = module.translate(to_module) |
| 4068 | 121 script_vars = { |
| 122 'python': self.python_executable, | |
| 123 'package': self.package_name, | |
| 124 'module': module, | |
| 125 'prefix': self.script_preamble, | |
| 126 } | |
| 127 | |
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5e2888db6c48
build_scripts: self.announce --> log.info because it is visible
anatoly techtonik <techtonik@gmail.com>
parents:
5022
diff
changeset
|
128 log.info("writing %s" % outfile) |
| 4068 | 129 file = open(outfile, 'w') |
| 130 | |
| 131 try: | |
| 132 # could just check self.target_platform, | |
| 133 # but looking at the script extension | |
| 134 # makes it possible to build both *nix-like | |
| 135 # and windows-like scripts on win32. | |
| 136 # may be useful for cygwin. | |
| 137 if os.path.splitext(outfile)[1] == ".bat": | |
| 138 file.write('@echo off\n' | |
| 139 'if NOT "%%_4ver%%" == "" "%(python)s" -c "from %(package)s.scripts.%(module)s import run; run()" %%$\n' | |
| 140 'if "%%_4ver%%" == "" "%(python)s" -c "from %(package)s.scripts.%(module)s import run; run()" %%*\n' | |
| 141 % script_vars) | |
| 142 else: | |
| 143 file.write('#! %(python)s\n%(prefix)s' | |
| 144 'from %(package)s.scripts.%(module)s import run\n' | |
| 145 'run()\n' | |
| 146 % script_vars) | |
| 147 finally: | |
| 148 file.close() | |
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149 os.chmod(outfile, 0o755) |