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csv_to_wxs.py
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csv_to_wxs.py
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'''
Processes a CSV file containing a list of files into a WXS file with
components for each listed file.
The CSV columns are:
source of file, target for file, group name
Usage::
py txt_to_wxs.py [path to file list .csv] [path to destination .wxs]
This is necessary to handle structures where some directories only
contain other directories. MSBuild is not able to generate the
Directory entries in the WXS file correctly, as it operates on files.
Python, however, can easily fill in the gap.
'''
__author__
=
"Steve Dower <steve.dower@microsoft.com>"
import
csv
import
re
import
sys
from
collections
import
defaultdict
from
itertools
import
chain
,
zip_longest
from
pathlib
import
PureWindowsPath
from
uuid
import
uuid1
ID_CHAR_SUBS
=
{
'-'
:
'_'
,
'+'
:
'_P'
,
}
def
make_id
(
path
):
return
re
.
sub
(
r'[^A-Za-z0-9_.]'
,
lambda
m
:
ID_CHAR_SUBS
.
get
(
m
.
group
(
0
),
'_'
),
str
(
path
).
rstrip
(
'/
\\
'
),
flags
=
re
.
I
)
DIRECTORIES
=
set
()
def
main
(
file_source
,
install_target
):
with
open
(
file_source
,
'r'
,
newline
=
''
)
as
f
:
files
=
list
(
csv
.
reader
(
f
))
assert
len
(
files
)
==
len
(
set
(
make_id
(
f
[
1
])
for
f
in
files
)),
"Duplicate file IDs exist"
directories
=
defaultdict
(
set
)
cache_directories
=
defaultdict
(
set
)
groups
=
defaultdict
(
list
)
for
source
,
target
,
group
,
disk_id
,
condition
in
files
:
target
=
PureWindowsPath
(
target
)
groups
[
group
].
append
((
source
,
target
,
disk_id
,
condition
))
if
target
.
suffix
.
lower
()
in
{
".py"
,
".pyw"
}:
cache_directories
[
group
].
add
(
target
.
parent
)
for
dirname
in
target
.
parents
:
parent
=
make_id
(
dirname
.
parent
)
if
parent
and
parent
!=
'.'
:
directories
[
parent
].
add
(
dirname
.
name
)
lines
=
[
'<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">'
,
' <Fragment>'
,
]
for
dir_parent
in
sorted
(
directories
):
lines
.
append
(
' <DirectoryRef Id="{}">'
.
format
(
dir_parent
))
for
dir_name
in
sorted
(
directories
[
dir_parent
]):
lines
.
append
(
' <Directory Id="{}_{}" Name="{}" />'
.
format
(
dir_parent
,
make_id
(
dir_name
),
dir_name
))
lines
.
append
(
' </DirectoryRef>'
)
for
dir_parent
in
(
make_id
(
d
)
for
group
in
cache_directories
.
values
()
for
d
in
group
):
lines
.
append
(
' <DirectoryRef Id="{}">'
.
format
(
dir_parent
))
lines
.
append
(
' <Directory Id="{}___pycache__" Name="__pycache__" />'
.
format
(
dir_parent
))
lines
.
append
(
' </DirectoryRef>'
)
lines
.
append
(
' </Fragment>'
)
for
group
in
sorted
(
groups
):
lines
.
extend
([
' <Fragment>'
,
' <ComponentGroup Id="{}">'
.
format
(
group
),
])
for
source
,
target
,
disk_id
,
condition
in
groups
[
group
]:
lines
.
append
(
' <Component Id="{}" Directory="{}" Guid="*">'
.
format
(
make_id
(
target
),
make_id
(
target
.
parent
)))
if
condition
:
lines
.
append
(
' <Condition>{}</Condition>'
.
format
(
condition
))
if
disk_id
:
lines
.
append
(
' <File Id="{}" Name="{}" Source="{}" DiskId="{}" />'
.
format
(
make_id
(
target
),
target
.
name
,
source
,
disk_id
))
else
:
lines
.
append
(
' <File Id="{}" Name="{}" Source="{}" />'
.
format
(
make_id
(
target
),
target
.
name
,
source
))
lines
.
append
(
' </Component>'
)
create_folders
=
{
make_id
(
p
)
+
"___pycache__"
for
p
in
cache_directories
[
group
]}
remove_folders
=
{
make_id
(
p2
)
for
p1
in
cache_directories
[
group
]
for
p2
in
chain
((
p1
,),
p1
.
parents
)}
create_folders
.
discard
(
"."
)
remove_folders
.
discard
(
"."
)
if
create_folders
or
remove_folders
:
lines
.
append
(
' <Component Id="{}__pycache__folders" Directory="TARGETDIR" Guid="{}">'
.
format
(
group
,
uuid1
()))
lines
.
extend
(
' <CreateFolder Directory="{}" />'
.
format
(
p
)
for
p
in
create_folders
)
lines
.
extend
(
' <RemoveFile Id="Remove_{0}_files" Name="*" On="uninstall" Directory="{0}" />'
.
format
(
p
)
for
p
in
create_folders
)
lines
.
extend
(
' <RemoveFolder Id="Remove_{0}_folder" On="uninstall" Directory="{0}" />'
.
format
(
p
)
for
p
in
create_folders
|
remove_folders
)
lines
.
append
(
' </Component>'
)
lines
.
extend
([
' </ComponentGroup>'
,
' </Fragment>'
,
])
lines
.
append
(
'</Wix>'
)
# Check if the file matches. If so, we don't want to touch it so
# that we can skip rebuilding.
try
:
with
open
(
install_target
,
'r'
)
as
f
:
if
all
(
x
.
rstrip
(
'
\r
\n
'
)
==
y
for
x
,
y
in
zip_longest
(
f
,
lines
)):
print
(
'File is up to date'
)
return
except
IOError
:
pass
with
open
(
install_target
,
'w'
)
as
f
:
f
.
writelines
(
line
+
'
\n
'
for
line
in
lines
)
print
(
'Wrote {} lines to {}'
.
format
(
len
(
lines
),
install_target
))
if
__name__
==
'__main__'
:
main
(
sys
.
argv
[
1
],
sys
.
argv
[
2
])
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