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Bryan Kaperick
erp5
Commits
0698cfe5
Commit
0698cfe5
authored
Jan 16, 2014
by
Arnaud Fontaine
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linecache: Display source code of TALES Expressions and add support for ipdb.
Signed-off-by:
Julien Muchembled
<
jm@nexedi.com
>
parent
6f92189a
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product/ERP5Type/patches/python.py
product/ERP5Type/patches/python.py
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product/ERP5Type/patches/python.py
View file @
0698cfe5
...
...
@@ -26,7 +26,7 @@
#
##############################################################################
import
os
,
sys
import
os
,
re
,
sys
if
sys
.
version_info
<
(
2
,
7
):
...
...
@@ -100,46 +100,75 @@ if 1:
from
docutils
import
utils
utils
.
relative_path
=
lambda
source
,
target
:
os
.
path
.
abspath
(
target
)
import
linecache
linecache_getlines
=
linecache
.
getlines
def
getlines
(
filename
,
module_globals
=
None
):
"""
Patch of linecache module (used in traceback and pdb module) to display ZODB
Components and Python Script source code properly without requiring to
create a temporary file on the filesystem
The filename is always '<string>' for any code executed by exec() (ZODB
Components) and '(FILENAME)?Script
\
(Py
t
hon
\
)
'
for Zope Python Scripts.
linecache.cache filled by linecache.updatecache() called by the original
linecache.getlines() is bypassed for ZODB Components and Python Script to
avoid getting inconsistent source code. Having no cache could be an issue if
performances would be required here but as linecache module is only called
by traceback and pdb modules not used often, this should not be an issue.
"""
if
filename
and
module_globals
:
data
=
None
# Get source code of ZODB Components (following PEP 302)
if
filename
==
'<string>'
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
:
def
patch_linecache
():
import
linecache
from
os.path
import
basename
expr_search
=
re
.
compile
(
'^Python expression "(.+)"$'
).
search
def
get_globals
(
frame
):
"""
ipdb does not pass module_globals to getlines()...
"""
m
=
frame
.
f_globals
[
'__name__'
]
if
m
==
'linecache'
:
frame
=
frame
.
f_back
m
=
frame
.
f_globals
[
'__name__'
]
if
m
==
'IPython.core.debugger'
:
co_name
=
frame
.
f_code
.
co_name
if
co_name
==
'format_stack_entry'
:
return
frame
.
f_locals
[
'frame'
].
f_globals
elif
co_name
==
'print_list_lines'
:
return
frame
.
f_locals
[
'self'
].
curframe
.
f_globals
linecache_getlines
=
linecache
.
getlines
def
getlines
(
filename
,
module_globals
=
None
):
"""
Patch of linecache module (used in traceback, ipdb, and pdb modules) to
display ZODB Components, Python Script source code and TALES Expressions
properly without requiring to create a temporary file on the filesystem
The filename is is always '<string>' for any code executed by exec() (ZODB
Components), '(FILENAME)?Script
\
(Py
t
hon
\
)
'
for Zope Python Scripts and
'Python Expression "CODE"' for TALES expressions.
linecache.cache filled by linecache.updatecache() called by the original
linecache.getlines() is bypassed for Python Script to avoid getting
inconsistent source code. Having no cache could be an issue if performances
would be required here but as linecache module is only called by traceback
and pdb modules not used often, this should not be an issue.
"""
if
filename
:
if
module_globals
is
None
:
module_globals
=
get_globals
(
sys
.
_getframe
(
1
))
# Get source code of ZODB Components (following PEP 302)
if
filename
==
'<string>'
and
'__loader__'
in
module_globals
:
data
=
None
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
return
data
.
splitlines
(
True
)
if
data
is
not
None
else
()
if
basename
(
filename
)
==
'Script (Python)'
:
try
:
data
=
get_source
(
name
)
except
(
ImportError
,
AttributeError
):
script
=
module_globals
[
'script'
]
if
script
.
_p_jar
.
opened
:
return
script
.
body
().
splitlines
(
True
)
except
Exception
:
pass
return
()
x
=
expr_search
(
filename
)
if
x
:
return
x
.
groups
()
return
linecache_getlines
(
filename
,
module_globals
)
# Get source code of Zope Python Script
elif
'Script (Python)'
in
filename
and
'script'
in
module_globals
:
data
=
module_globals
[
'script'
].
body
()
linecache
.
getlines
=
getlines
if
data
is
not
None
:
data
=
[
line
+
'
\
n
'
for
line
in
data
.
splitlines
()]
return
data
return
linecache_getlines
(
filename
,
module_globals
)
linecache
.
getlines
=
getlines
patch_linecache
()
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