paster create dies on project names with "-" characters (revisited)

[pjenvey@…]

This is very similar to #53, but it's a separate issue

pjenvey@bob:~/tmp$ paster create --template=pylons pylons-test
Selected and implied templates:
  Pylons#pylons  Pylons application template

Variables:
  package:  pylonstest
  project:  pylons-test
Creating template pylons
Creating directory ./pylons-test
  Recursing into +package+
    Creating ./pylons-test/pylonstest/
    Copying __init__.py_tmpl to ./pylons-test/pylonstest/__init__.py
    Recursing into components
      Creating ./pylons-test/pylonstest/components/
      Copying empty.myt to ./pylons-test/pylonstest/components/empty.myt
    Recursing into config
      Creating ./pylons-test/pylonstest/config/
      Copying __init__.py_tmpl to ./pylons-test/pylonstest/config/__init__.py
      Copying environment.py_tmpl to ./pylons-test/pylonstest/config/environment.py
      Copying environment.py_tmpl__ to ./pylons-test/pylonstest/config/environment.py_tmpl__
      Copying middleware.py_tmpl to ./pylons-test/pylonstest/config/middleware.py
      Copying routing.py_tmpl to ./pylons-test/pylonstest/config/routing.py
    Recursing into controllers
      Creating ./pylons-test/pylonstest/controllers/
      Copying __init__.py_tmpl to ./pylons-test/pylonstest/controllers/__init__.py
      Copying error.py_tmpl to ./pylons-test/pylonstest/controllers/error.py
      Copying template.py_tmpl to ./pylons-test/pylonstest/controllers/template.py
    Recursing into docs
      Creating ./pylons-test/pylonstest/docs/
      Copying index.txt_tmpl to ./pylons-test/pylonstest/docs/index.txt
    Recursing into i18n
      Creating ./pylons-test/pylonstest/i18n/
      Copying __init__.py_tmpl to ./pylons-test/pylonstest/i18n/__init__.py
    Recursing into lib
      Creating ./pylons-test/pylonstest/lib/
      Copying __init__.py_tmpl to ./pylons-test/pylonstest/lib/__init__.py
      Copying app_globals.py_tmpl to ./pylons-test/pylonstest/lib/app_globals.py
      Copying base.py_tmpl to ./pylons-test/pylonstest/lib/base.py
      Copying helpers.py_tmpl to ./pylons-test/pylonstest/lib/helpers.py
    Recursing into models
      Creating ./pylons-test/pylonstest/models/
      Copying __init__.py_tmpl to ./pylons-test/pylonstest/models/__init__.py
    Recursing into public
      Creating ./pylons-test/pylonstest/public/
      Copying index.html_tmpl to ./pylons-test/pylonstest/public/index.html
    Recursing into templates
      Creating ./pylons-test/pylonstest/templates/
      Copying autohandler to ./pylons-test/pylonstest/templates/autohandler
    Recursing into tests
      Creating ./pylons-test/pylonstest/tests/
      Copying __init__.py_tmpl to ./pylons-test/pylonstest/tests/__init__.py
      Recursing into functional
        Creating ./pylons-test/pylonstest/tests/functional/
        Copying __init__.py_tmpl to ./pylons-test/pylonstest/tests/functional/__init__.py
      Copying test_models.py_tmpl to ./pylons-test/pylonstest/tests/test_models.py
    Copying websetup.py_tmpl to ./pylons-test/pylonstest/websetup.py
  Recursing into +project+.egg-info
    Creating ./pylons-test/pylons-test.egg-info/
    Copying paste_deploy_config.ini_tmpl_tmpl to ./pylons-test/pylons-test.egg-info/paste_deploy_config.ini_tmpl
  Copying README.txt_tmpl to ./pylons-test/README.txt
  Copying development.ini_tmpl to ./pylons-test/development.ini
  Copying setup.cfg_tmpl to ./pylons-test/setup.cfg
  Copying setup.py_tmpl to ./pylons-test/setup.py
Running /usr/local/bin/python setup.py egg_info
Adding Pylons to paster_plugins.txt
Traceback (most recent call last):
  File "/usr/local/bin/paster", line 7, in ?
    execfile(__file__)
  File "/usr/home/pjenvey/src/python/paste/PasteScript/scripts/paster", line 18, in ?
    command.run()
  File "/usr/home/pjenvey/src/python/paste/PasteScript/paste/script/command.py", line 70, in run
    invoke(command, command_name, options, args[1:])
  File "/usr/home/pjenvey/src/python/paste/PasteScript/paste/script/command.py", line 110, in invoke
    exit_code = runner.run(args)
  File "/usr/home/pjenvey/src/python/paste/PasteScript/paste/script/command.py", line 205, in run
    result = self.command()
  File "/usr/home/pjenvey/src/python/paste/PasteScript/paste/script/create_distro.py", line 129, in command
    pluginlib.add_plugin(egg_info_dir, spec)
  File "/usr/home/pjenvey/src/python/paste/PasteScript/paste/script/pluginlib.py", line 20, in add_plugin
    f = open(fn, 'w')
IOError: [Errno 2] No such file or directory: './pylons-test/pylons_test.egg-info/paster_plugins.txt'

#53's exception is (notice the hyphen):

IOError: [Errno 2] No such file or directory: './pylons-test/pylons-test.egg-info/paster_plugins.txt'

This one's is (notice the hyphen replaced with an underscore):

IOError: [Errno 2] No such file or directory: './pylons-test/pylons_test.egg-info/paster_plugins.txt'

#53 was partly resolved by using paste.script.pluginlib.egg_info_dir to determine the safe .egg-info dir name (replaces the hyphen with the underscore)

The new issue lies the standard for templating .egg-info directories. The standard is to use the '+project+' var (which allows hyphens). Pylons has had this '+project+.egg-info' dir for a while, and just recently PasteScript?'s basic_package template now has the same directory:

pjenvey@bob:~/src/python/pylons/pylons/templates$ ls -ald paster_template/+*
drwxr-xr-x   13 pjenvey  g13           512 Mar  7 14:05 paster_template/+package+/
drwxr-xr-x    3 pjenvey  g13           512 Mar 27 15:21 paster_template/+project+.egg-info/

pjenvey@bob:~/src/python/paste/PasteScript/paste/script/templates$ ls -lad basic_package/+*
drwxr-xr-x    3 pjenvey  g13           512 Apr 28 09:42 basic_package/+package+/
drwxr-xr-x    3 pjenvey  g13           512 Apr 28 09:42 basic_package/+project+.egg-info/

During 'paster create', these templates are interpreted, and my example 'pylons-test' project ends up with an egg-info directory that contains a hyphen: 'pylons-test.egg-info'

Obviously this is bad (as you already know setuptools discourages hyphens). When 'paster create' runs 'python setup.py egg_info' after our badly named .egg-info template is interpreted, we get the following warning:

------------------------------------------------------------------------------
Note: Your current .egg-info directory has a '-' in its name;
this will not work correctly with "setup.py develop".

Please rename pylons-test.egg-info to pylons_test.egg-info to correct this problem.
------------------------------------------------------------------------------

('paster create' hides this message from the user)

The egg_info command would have created a properly named .egg-info dir: 'pylons_test.egg-info', if the .egg-info dir created from the template didn't already exist. Since it does exist, it uses it and issues the warning

Then when paste.script.create_distro expects to encounter that properly named .egg-info dir without the hyphen, the exception is raised

The possible solutions I see:

o Have a proper egg-info template var. Then everyone has to rename their egg-info template dir to '+egg-info-name+.egg-info', or better yet have the var handle the entire name: '+project-egg-info+' or '+egg-info+'

o '+package+' appears to be safe (but I don't know this for sure). Use '+package+.egg-info' instead of '+project+.egg-info'. This might break setuptools if it's ever expecting the normal .egg-info name (maybe not, if it's automatically picking up our badly named dir). Nonetheless, this would give us a less correct egg-info dir name than the first solution (possibly correct enough)

o Implement a hack that detects the '+project+.egg-info' filename, and use a clean egg-info name instead of '+project+'. Nobody would have to change anything, but it's a kludge

Here's an output of PasteScript? trunk's basic template breaking as pylons does, now that it includes the '+project+.egg-info' dir:

pjenvey@bob:~/tmp$ paster create paste-test
Selected and implied templates:
  PasteScript#basic_package  A basic setuptools-enabled package

Variables:
  package:  pastetest
  project:  paste-test
Creating template basic_package
Creating directory ./paste-test
  Recursing into +package+
    Creating ./paste-test/pastetest/
    Copying __init__.py to ./paste-test/pastetest/__init__.py
  Recursing into +project+.egg-info
    Creating ./paste-test/paste-test.egg-info/
  Recursing into docs
    Creating ./paste-test/docs/
  Copying setup.cfg to ./paste-test/setup.cfg
  Copying setup.py_tmpl to ./paste-test/setup.py
Running /usr/local/bin/python setup.py egg_info
Traceback (most recent call last):
  File "/usr/local/bin/paster", line 7, in ?
    execfile(__file__)
  File "/usr/home/pjenvey/src/python/paste/PasteScript/scripts/paster", line 18, in ?
    command.run()
  File "/usr/home/pjenvey/src/python/paste/PasteScript/paste/script/command.py", line 70, in run
    invoke(command, command_name, options, args[1:])
  File "/usr/home/pjenvey/src/python/paste/PasteScript/paste/script/command.py", line 110, in invoke
    exit_code = runner.run(args)
  File "/usr/home/pjenvey/src/python/paste/PasteScript/paste/script/command.py", line 205, in run
    result = self.command()
  File "/usr/home/pjenvey/src/python/paste/PasteScript/paste/script/create_distro.py", line 133, in command
    pluginlib.add_plugin(egg_info_dir, 'PasteScript')
  File "/usr/home/pjenvey/src/python/paste/PasteScript/paste/script/pluginlib.py", line 20, in add_plugin
    f = open(fn, 'w')
IOError: [Errno 2] No such file or directory: './paste-test/paste_test.egg-info/paster_plugins.txt'

[kkkkoaaa]

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[pjenvey@…]

This is solved by using the new explicit egg_info_dir variable (Added in r5387)

Any templates using the +project+.egg-info directory name should rename it to +egg_info_dir+

[anonymous]

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[anonymous]

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