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slapos.buildout
Commit c83448d1 authored by Kazuhiko Shiozaki's avatar Kazuhiko Shiozaki
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Write .installed.cfg only once, in safe way and only if there's any change. 

Also, updating a part does not put it anymore at the end of the list of
installed parts, that was making .installed.cfg too big.
parent 0d34d45e
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Showing with 157 additions and 79 deletions
src/zc/buildout/buildout.py
View file @ c83448d1
......@@ -36,6 +36,7 @@ import zc.buildout.configparser
import copy
import datetime
import distutils.errors
import errno
import glob
import itertools
import logging
......@@ -177,6 +178,12 @@ def _print_annotate(data):
line = ' '
print_()
def _remove_ignore_missing(path):
try:
os.remove(path)
except OSError as e:
if e.errno != errno.ENOENT:
raise
def _unannotate_section(section):
for key in section:
......@@ -619,6 +626,15 @@ class Buildout(DictMixin):
self.install(())
def install(self, install_args):
try:
self._install_parts(install_args)
finally:
self._save_installed_options()
if self.show_picked_versions or self.update_versions_file:
self._print_picked_versions()
self._unload_extensions()
def _install_parts(self, install_args):
__doing__ = 'Installing.'
self._load_extensions()
......@@ -632,28 +648,23 @@ class Buildout(DictMixin):
self._maybe_upgrade()
# load installed data
(installed_part_options, installed_exists
)= self._read_installed_part_options()
self.installed_part_options = self._read_installed_part_options()
# Remove old develop eggs
self._uninstall(
installed_part_options['buildout'].get(
self.installed_part_options['buildout'].get(
'installed_develop_eggs', '')
)
# Build develop eggs
installed_develop_eggs = self._develop()
installed_part_options['buildout']['installed_develop_eggs'
self.installed_part_options['buildout']['installed_develop_eggs'
] = installed_develop_eggs
if installed_exists:
self._update_installed(
installed_develop_eggs=installed_develop_eggs)
# get configured and installed part lists
conf_parts = self['buildout']['parts']
conf_parts = conf_parts and conf_parts.split() or []
installed_parts = installed_part_options['buildout']['parts']
installed_parts = self.installed_part_options['buildout']['parts']
installed_parts = installed_parts and installed_parts.split() or []
if install_args:
......@@ -685,7 +696,7 @@ class Buildout(DictMixin):
# have changed
for part in reversed(installed_parts):
if part in install_parts:
old_options = installed_part_options[part].copy()
old_options = self.installed_part_options[part].copy()
installed_files = old_options.pop('__buildout_installed__')
new_options = self.get(part)
if old_options == new_options:
......@@ -718,12 +729,9 @@ class Buildout(DictMixin):
elif not uninstall_missing:
continue
self._uninstall_part(part, installed_part_options)
self._uninstall_part(part, self.installed_part_options)
installed_parts = [p for p in installed_parts if p != part]
if installed_exists:
self._update_installed(parts=' '.join(installed_parts))
# Check for unused buildout options:
_check_for_unused_options_in_section(self, 'buildout')
......@@ -733,10 +741,9 @@ class Buildout(DictMixin):
saved_options = self[part].copy()
recipe = self[part].recipe
if part in installed_parts: # update
need_to_save_installed = False
__doing__ = 'Updating %s.', part
self._logger.info(*__doing__)
old_options = installed_part_options[part]
old_options = self.installed_part_options[part]
old_installed_files = old_options['__buildout_installed__']
try:
......@@ -753,9 +760,8 @@ class Buildout(DictMixin):
except:
installed_parts.remove(part)
self._uninstall(old_installed_files)
if installed_exists:
self._update_installed(
parts=' '.join(installed_parts))
self.installed_part_options['buildout']['parts'] = (
' '.join(installed_parts))
raise
old_installed_files = old_installed_files.split('\n')
......@@ -776,10 +782,14 @@ class Buildout(DictMixin):
+ need_to_save_installed)
else: # install
need_to_save_installed = True
__doing__ = 'Installing %s.', part
self._logger.info(*__doing__)
installed_files = self[part]._call(recipe.install)
try:
installed_files = self[part]._call(recipe.install)
except:
self.installed_part_options['buildout']['parts'] = (
' '.join(installed_parts))
raise
if installed_files is None:
self._logger.warning(
"The %s install returned None. A path or "
......@@ -791,7 +801,7 @@ class Buildout(DictMixin):
else:
installed_files = list(installed_files)
installed_part_options[part] = saved_options
self.installed_part_options[part] = saved_options
saved_options['__buildout_installed__'
] = '\n'.join(installed_files)
saved_options['__buildout_signature__'] = signature
......@@ -800,32 +810,11 @@ class Buildout(DictMixin):
installed_parts.append(part)
_check_for_unused_options_in_section(self, part)
if need_to_save_installed:
installed_part_options['buildout']['parts'] = (
' '.join(installed_parts))
self._save_installed_options(installed_part_options)
installed_exists = True
else:
assert installed_exists
self._update_installed(parts=' '.join(installed_parts))
self.installed_part_options['buildout']['parts'] = (
' '.join(installed_parts))
if installed_develop_eggs:
if not installed_exists:
self._save_installed_options(installed_part_options)
elif (not installed_parts) and installed_exists:
os.remove(self['buildout']['installed'])
if self.show_picked_versions or self.update_versions_file:
self._print_picked_versions()
self._unload_extensions()
def _update_installed(self, **buildout_options):
installed = self['buildout']['installed']
f = open(installed, 'a')
f.write('\n[buildout]\n')
for option, value in list(buildout_options.items()):
_save_option(option, value, f)
f.close()
self.installed_part_options['buildout']['parts'] = (
' '.join(installed_parts))
def _uninstall_part(self, part, installed_part_options):
# uninstall part
......@@ -947,11 +936,9 @@ class Buildout(DictMixin):
options[option] = value
result[section] = self.Options(self, section, options)
return result, True
return result
else:
return ({'buildout': self.Options(self, 'buildout', {'parts': ''})},
False,
)
return {'buildout': self.Options(self, 'buildout', {'parts': ''})}
def _uninstall(self, installed):
for f in installed.split('\n'):
......@@ -992,16 +979,40 @@ class Buildout(DictMixin):
return ' '.join(installed)
def _save_installed_options(self, installed_options):
def _save_installed_options(self):
installed_options = getattr(self, 'installed_part_options', None)
installed = self['buildout']['installed']
if not installed:
if not installed_options or not installed:
return
f = open(installed, 'w')
_save_options('buildout', installed_options['buildout'], f)
for part in installed_options['buildout']['parts'].split():
print_(file=f)
_save_options(part, installed_options[part], f)
f.close()
buildout = installed_options['buildout']
installed_parts = buildout['parts'].split()
if installed_parts or buildout['installed_develop_eggs']:
new = StringIO()
buildout['parts'] = ' '.join(installed_parts)
_save_options('buildout', buildout, new)
for part in installed_parts:
new.write('\n')
_save_options(part, installed_options[part], new)
new = new.getvalue()
try:
with open(installed) as f:
save = f.read(1+len(new)) != new
except IOError as e:
if e.errno != errno.ENOENT:
raise
save = True
if save:
installed_tmp = installed + ".tmp"
try:
with open(installed_tmp, "w") as f:
f.write(new)
f.flush()
os.fsync(f.fileno())
os.rename(installed_tmp, installed)
finally:
_remove_ignore_missing(installed_tmp)
else:
_remove_ignore_missing(installed)
def _error(self, message, *args):
raise zc.buildout.UserError(message % args)
......@@ -1397,12 +1408,16 @@ class Options(DictMixin):
def _dosub(self, option, v):
__doing__ = 'Getting option %s:%s.', self.name, option
seen = [(self.name, option)]
v = '$$'.join([self._sub(s, seen) for s in v.split('$$')])
v = '$$'.join([self._sub(s, seen, last=False)
for s in v.split('$$')])
self._cooked[option] = v
def get(self, option, default=None, seen=None):
def get(self, option, default=None, seen=None, last=True):
try:
return self._data[option]
if last:
return self._data[option].replace('$${', '${')
else:
return self._data[option]
except KeyError:
pass
......@@ -1424,16 +1439,20 @@ class Options(DictMixin):
)
else:
seen.append(key)
v = '$$'.join([self._sub(s, seen) for s in v.split('$$')])
v = '$$'.join([self._sub(s, seen, last=False)
for s in v.split('$$')])
seen.pop()
self._data[option] = v
return v
if last:
return v.replace('$${', '${')
else:
return v
_template_split = re.compile('([$]{[^}]*})').split
_simple = re.compile('[-a-zA-Z0-9 ._]+$').match
_valid = re.compile('\${[-a-zA-Z0-9 ._]*:[-a-zA-Z0-9 ._]+}$').match
def _sub(self, template, seen):
def _sub(self, template, seen, last=True):
value = self._template_split(template)
subs = []
for ref in value[1::2]:
......@@ -1463,7 +1482,7 @@ class Options(DictMixin):
section = self.name
elif section != 'buildout':
self._dependency.add(section)
v = self.buildout[section].get(option, None, seen)
v = self.buildout[section].get(option, None, seen, last=last)
if v is None:
if option == '_buildout_section_name_':
v = self.name
......@@ -1476,14 +1495,6 @@ class Options(DictMixin):
return ''.join([''.join(v) for v in zip(value[::2], subs)])
def __getitem__(self, key):
try:
v = self._data[key]
if v.startswith(SERIALISED_VALUE_MAGIC):
v = loads(v)
return v
except KeyError:
pass
v = self.get(key)
if v is None:
raise MissingOption("Missing option: %s:%s" % (self.name, key))
......
src/zc/buildout/debugging.txt
View file @ c83448d1
......@@ -85,6 +85,8 @@ supply some input:
File "/zc/buildout/buildout.py", line 1352, in main
getattr(buildout, command)(args)
File "/zc/buildout/buildout.py", line 383, in install
self._install_parts(install_args)
File buildout.py", line 791, in _install_parts
installed_files = self[part]._call(recipe.install)
File "/zc/buildout/buildout.py", line 961, in _call
return f()
......
src/zc/buildout/tests.py
View file @ c83448d1
......@@ -1492,7 +1492,7 @@ some evil recipes that exit uncleanly:
>>> mkdir('recipes')
>>> write('recipes', 'recipes.py',
... '''
... import os
... import sys
...
... class Clean:
... def __init__(*_): pass
......@@ -1500,10 +1500,10 @@ some evil recipes that exit uncleanly:
... def update(_): pass
...
... class EvilInstall(Clean):
... def install(_): os._exit(1)
... def install(_): sys.exit(1)
...
... class EvilUpdate(Clean):
... def update(_): os._exit(1)
... def update(_): sys.exit(1)
... ''')
>>> write('recipes', 'setup.py',
......@@ -1600,7 +1600,6 @@ Now let's look at 3 cases:
Uninstalling p2.
Uninstalling p1.
Uninstalling p4.
Uninstalling p3.
3. We exit while installing or updating after uninstalling:
......@@ -1676,7 +1675,6 @@ Now let's look at 3 cases:
>>> print_(system(buildout), end='')
Develop: '/sample-buildout/recipes'
Uninstalling p1.
Installing p1.
Updating p2.
Updating p3.
......@@ -2736,6 +2734,73 @@ def increment_on_command_line():
recipe='zc.buildout:debug'
"""
def bug_664539_simple_buildout():
r"""
>>> write('buildout.cfg', '''
... [buildout]
... parts = escape
...
... [escape]
... recipe = zc.buildout:debug
... foo = $${nonexistent:option}
... ''')
>>> print_(system(buildout), end='')
Installing escape.
foo='${nonexistent:option}'
recipe='zc.buildout:debug'
"""
def bug_664539_reference():
r"""
>>> write('buildout.cfg', '''
... [buildout]
... parts = escape
...
... [escape]
... recipe = zc.buildout:debug
... foo = ${:bar}
... bar = $${nonexistent:option}
... ''')
>>> print_(system(buildout), end='')
Installing escape.
bar='${nonexistent:option}'
foo='${nonexistent:option}'
recipe='zc.buildout:debug'
"""
def bug_664539_complex_buildout():
r"""
>>> write('buildout.cfg', '''
... [buildout]
... parts = escape
...
... [escape]
... recipe = zc.buildout:debug
... foo = ${level1:foo}
...
... [level1]
... recipe = zc.buildout:debug
... foo = ${level2:foo}
...
... [level2]
... recipe = zc.buildout:debug
... foo = $${nonexistent:option}
... ''')
>>> print_(system(buildout), end='')
Installing level2.
foo='${nonexistent:option}'
recipe='zc.buildout:debug'
Installing level1.
foo='${nonexistent:option}'
recipe='zc.buildout:debug'
Installing escape.
foo='${nonexistent:option}'
recipe='zc.buildout:debug'
"""
def test_constrained_requirement():
"""
zc.buildout.easy_install._constrained_requirement(constraint, requirement)
......
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