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cefpython/src/linux/setup/fix_pyx_files.py at cefpython53 · pythonthings/cefpython · GitHub
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setup
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fix_pyx_files.py
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cefpython
/
src
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linux
/
setup
/
fix_pyx_files.py
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# Copyright (c) 2012-2014 The CEF Python authors. All rights reserved.
# License: New BSD License.
# Website: http://code.google.com/p/cefpython/
# First, it copies all .pyx files from upper directory to setup/.
# Then, fixes repeating of "include" statements in pyx files.
# Only the mainfile needs to have "include" statements,
# but we're using PyCharm and to get rid of "unresolved references"
# and other errors displayed in pycharm we are adding "include"
# statements in all of the pyx files.
# I'm not 100% sure how includes work in Cython, but I suspect that
# a few includes of the same file will include the same content more
# than once, it should work, but function and variable definitions are
# duplicated, it is some kind of overhead and it could lead to some
# problems in the future, better to fix it now.
# It also checks cdef & cpdef functions whether they are not missing "except *",
# it is required to add it when returning non-python type.
import
glob
import
os
import
re
import
shutil
import
sys
def
ExceptAllMissing
(
content
):
# This is not perfect, won't detect C++ custom types, but will find
# the built-in types, templates and pointers.
patterns
=
[]
patterns
.
append
(
r"\bcp?def\s+"
"((int|short|long|double|char|unsigned|float|double|cpp_bool"
"|cpp_string|cpp_wstring|uint64_t|uintptr_t|void"
"|CefString)\s+)+"
"\w+\([^)]*\)\s*(with\s+(gil|nogil))?\s*:"
)
patterns
.
append
(
r"\bcp?def\s+"
# A template ends with bracket: CefRefPtr[CefBrowser]
# or a pointer ends with asterisk: CefBrowser*
"[^\s]+[\]*]\s+"
"\w+\([^)]*\)\s*(with\s+(gil|nogil))?\s*:"
)
patterns
.
append
(
r"\bcp?def\s+"
# A reference, eg. CefString&
"[^\s]+&\s+"
"\w+\([^)]*\)\s*(with\s+(gil|nogil))?\s*:"
)
for
pattern
in
patterns
:
match
=
re
.
search
(
pattern
,
content
)
if
match
:
break
if
match
:
lineNumber
=
(
content
.
count
(
"
\n
"
,
0
,
match
.
start
())
+
1
)
return
lineNumber
print
(
"
\n
"
)
mainfile
=
"cefpython.pyx"
pyxfiles
=
glob
.
glob
(
"../../*.pyx"
)
if
not
len
(
pyxfiles
):
print
(
"ERROR: no .pyx files found in root"
)
sys
.
exit
(
1
)
pyxfiles
=
[
file
for
file
in
pyxfiles
if
file
.
find
(
mainfile
)
==
-
1
]
# Now, pyxfiles contains all pyx files except the mainfile (cefpython.pyx),
# we do not fix includes in mainfile.
pyxfiles2
=
glob
.
glob
(
"../../handlers/*.pyx"
)
if
not
len
(
pyxfiles2
):
print
(
"ERROR: no .pyx files found in handlers/"
)
sys
.
exit
(
1
)
pyxfiles
=
pyxfiles
+
pyxfiles2
# So that this is the right directory we're in.
if
os
.
path
.
exists
(
"setup"
):
print
(
"Wrong directory, we should be inside setup!"
)
sys
.
exit
(
1
)
# Remove old pyx files in setup directory.
oldpyxfiles
=
glob
.
glob
(
"./*.pyx"
)
print
(
"Removing old pyx files in /setup/: %s"
%
oldpyxfiles
)
for
pyxfile
in
oldpyxfiles
:
if
os
.
path
.
exists
(
pyxfile
):
os
.
remove
(
pyxfile
)
# Copying pyxfiles and reading its contents.
print
(
"Copying .pyx files to /setup/: %s"
%
pyxfiles
)
# Copying cefpython.pyx
# and Fix includes in cefpython.pyx
# * include "handlers/focus_handler.pyx" becomes include "focus_handler.pyx"
shutil
.
copy
(
"../../%s"
%
mainfile
,
"./%s"
%
mainfile
)
with
open
(
"./%s"
%
mainfile
,
"r"
)
as
fo
:
content
=
fo
.
read
()
(
content
,
subs
)
=
re
.
subn
(
r"^include \"handlers/"
,
"include
\"
"
,
content
,
flags
=
re
.
MULTILINE
)
with
open
(
"./%s"
%
mainfile
,
"w"
)
as
fo
:
fo
.
write
(
content
)
print
(
"%s includes fixed in %s"
%
(
subs
,
mainfile
))
# Rest of the files will be copied in for loop below.
print
(
"Fixing includes in .pyx files:"
)
for
pyxfile
in
pyxfiles
:
newfile
=
"./%s"
%
os
.
path
.
basename
(
pyxfile
)
shutil
.
copy
(
pyxfile
,
newfile
)
pyxfile
=
newfile
with
open
(
pyxfile
,
"r"
)
as
pyxfileopened
:
content
=
pyxfileopened
.
read
()
lineNumber
=
ExceptAllMissing
(
content
)
if
lineNumber
:
print
(
"WARNING: 'except *' missing in a cdef/cpdef function, "
"in file %s on line %d"
%
(
os
.
path
.
basename
(
pyxfile
),
lineNumber
))
sys
.
exit
(
1
)
# Do not remove the newline - so that line numbers are exact with originals.
(
content
,
subs
)
=
re
.
subn
(
r"^include[\t ]+[\"'][^\"'\n\r]+[\"'][\t ]*"
,
""
,
content
,
flags
=
re
.
MULTILINE
)
if
subs
:
print
(
"%s includes removed in: %s"
%
(
subs
,
os
.
path
.
basename
(
pyxfile
)))
# Reading and writing with the same handle using "r+" mode doesn't work,
# you need to seek(0) and write the same amount of bytes that was in the
# file, otherwise old data from the end of file stays.
with
open
(
pyxfile
,
"w"
)
as
pyxfileopened
:
pyxfileopened
.
write
(
content
)
print
(
"
\n
"
)
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