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Binh
erp5
Commits
4406c9b3
Commit
4406c9b3
authored
Mar 08, 2012
by
Arnaud Fontaine
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Display source code of ZODB Component package for any module using linecache (pdb and traceback).
parent
3d209aa1
Changes
2
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2 changed files
with
77 additions
and
1 deletion
+77
-1
product/ERP5Type/dynamic/component_package.py
product/ERP5Type/dynamic/component_package.py
+24
-1
product/ERP5Type/patches/python.py
product/ERP5Type/patches/python.py
+53
-0
No files found.
product/ERP5Type/dynamic/component_package.py
View file @
4406c9b3
...
@@ -125,6 +125,19 @@ class ComponentDynamicPackage(ModuleType):
...
@@ -125,6 +125,19 @@ class ComponentDynamicPackage(ModuleType):
return
self
.
__registry_dict
return
self
.
__registry_dict
def
get_source
(
self
,
fullname
):
"""
Get the source code of the given module name from the ID defined on the
dynamic module (setting getTextContent() on the module directly may not
work properly upon reset and there is no need for performance there as it
is only used for traceback or pdb anyway)
"""
module
=
__import__
(
fullname
,
fromlist
=
[
fullname
.
rsplit
(
'.'
,
1
)[
0
]],
level
=
0
)
return
getattr
(
getSite
().
portal_components
,
module
.
__file__
[
1
:
-
1
]).
getTextContent
(
validated_only
=
True
)
def
find_module
(
self
,
fullname
,
path
=
None
):
def
find_module
(
self
,
fullname
,
path
=
None
):
# Ignore imports with a path which are filesystem-only and any
# Ignore imports with a path which are filesystem-only and any
# absolute imports which does not start with this package prefix,
# absolute imports which does not start with this package prefix,
...
@@ -240,7 +253,7 @@ class ComponentDynamicPackage(ModuleType):
...
@@ -240,7 +253,7 @@ class ComponentDynamicPackage(ModuleType):
sys
.
modules
[
component_id_alias
]
=
new_module
sys
.
modules
[
component_id_alias
]
=
new_module
# This must be set for imports at least (see PEP 302)
# This must be set for imports at least (see PEP 302)
new_module
.
__file__
=
'<'
+
component
_name
+
'>'
new_module
.
__file__
=
'<'
+
component
.
getId
()
+
'>'
try
:
try
:
component
.
load
(
new_module
.
__dict__
,
validated_only
=
True
)
component
.
load
(
new_module
.
__dict__
,
validated_only
=
True
)
...
@@ -290,4 +303,14 @@ class ComponentDynamicPackage(ModuleType):
...
@@ -290,4 +303,14 @@ class ComponentDynamicPackage(ModuleType):
# The module must be deleted first from sys.modules to avoid imports in
# The module must be deleted first from sys.modules to avoid imports in
# the meantime
# the meantime
del
sys
.
modules
[
module_name
]
del
sys
.
modules
[
module_name
]
# Delete linecache data
import
linecache
try
:
del
linecache
.
cache
[
getattr
(
package
,
name
).
__file__
]
# __file__ may not be defined
except
(
AttributeError
,
KeyError
):
pass
# And finally remove the module
delattr
(
package
,
name
)
delattr
(
package
,
name
)
product/ERP5Type/patches/python.py
View file @
4406c9b3
...
@@ -99,3 +99,56 @@ if 1:
...
@@ -99,3 +99,56 @@ if 1:
# Required by PortalTransforms.transforms.rest
# Required by PortalTransforms.transforms.rest
from
docutils
import
utils
from
docutils
import
utils
utils
.
relative_path
=
lambda
source
,
target
:
os
.
path
.
abspath
(
target
)
utils
.
relative_path
=
lambda
source
,
target
:
os
.
path
.
abspath
(
target
)
# Patch of linecache module (used in traceback and pdb module) to display ZODB
# Components source code properly without requiring to create a temporary file
# on the filesystem
import
linecache
linecache_getlines
=
linecache
.
getlines
def
getlines
(
filename
,
module_globals
=
None
):
"""
The filename is always '<string>' for any code executed by exec(). ZODB
Component modules always set __file__ attribute to <erp5.component...>.
The original getlines() will be called which look into the cache and if not
available, call updatecache.
"""
if
filename
==
'<string>'
and
module_globals
and
'__file__'
in
module_globals
:
filename
=
module_globals
[
'__file__'
]
return
linecache_getlines
(
filename
,
module_globals
)
linecache
.
getlines
=
getlines
linecache_updatecache
=
linecache
.
updatecache
def
updatecache
(
filename
,
module_globals
=
None
):
"""
Original updatecache requires a filename which doesn't match <.*>, which is
strange considering that it then looks whether the module has been loaded
through PEP 302 Loader, but it is perhaps to be more generic. Anyhow, <> is
really needed to differenciate files on the filesystem to the ones only in
memory...
"""
if
(
filename
[
0
]
==
'<'
and
filename
[
-
1
]
==
'>'
and
module_globals
and
'__loader__'
in
module_globals
):
name
=
module_globals
.
get
(
'__name__'
)
loader
=
module_globals
[
'__loader__'
]
get_source
=
getattr
(
loader
,
'get_source'
,
None
)
if
name
and
get_source
:
try
:
data
=
get_source
(
name
)
except
(
ImportError
,
AttributeError
):
pass
else
:
if
data
is
None
:
return
[]
data_len
=
len
(
data
)
data
=
[
line
+
'
\
n
'
for
line
in
data
.
splitlines
()]
linecache
.
cache
[
filename
]
=
(
data_len
,
None
,
data
,
filename
)
return
data
return
linecache_updatecache
(
filename
,
module_globals
)
linecache
.
updatecache
=
updatecache
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