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TensorFlow.NET/src/TensorFlowNET.Core/Data/Utils.cs at master · pathway27/TensorFlow.NET · GitHub
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TensorFlow.NET
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src
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TensorFlowNET.Core
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Data
/
Utils.cs
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TensorFlow.NET
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src
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TensorFlowNET.Core
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Data
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Utils.cs
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using
System
;
using
System
.
IO
;
using
System
.
IO
.
Compression
;
using
System
.
Collections
.
Generic
;
using
System
.
Net
;
using
System
.
Text
;
using
System
.
Threading
;
using
System
.
Threading
.
Tasks
;
namespace
Tensorflow
{
public
static
class
Utils
{
public
static
async
Task
DownloadAsync
<
TDataSet
>
(
this
IModelLoader
<
TDataSet
>
modelLoader
,
string
url
,
string
saveTo
)
where
TDataSet
:
IDataSet
{
var
dir
=
Path
.
GetDirectoryName
(
saveTo
)
;
var
fileName
=
Path
.
GetFileName
(
saveTo
)
;
await
modelLoader
.
DownloadAsync
(
url
,
dir
,
fileName
)
;
}
public
static
async
Task
DownloadAsync
<
TDataSet
>
(
this
IModelLoader
<
TDataSet
>
modelLoader
,
string
url
,
string
dirSaveTo
,
string
fileName
,
bool
showProgressInConsole
=
false
)
where
TDataSet
:
IDataSet
{
if
(
!
Path
.
IsPathRooted
(
dirSaveTo
)
)
dirSaveTo
=
Path
.
Combine
(
AppContext
.
BaseDirectory
,
dirSaveTo
)
;
var
fileSaveTo
=
Path
.
Combine
(
dirSaveTo
,
fileName
)
;
if
(
showProgressInConsole
)
{
Console
.
WriteLine
(
$
"Downloading
{
fileName
}
"
)
;
}
if
(
File
.
Exists
(
fileSaveTo
)
)
{
if
(
showProgressInConsole
)
{
Console
.
WriteLine
(
$
"The file
{
fileName
}
already exists"
)
;
}
return
;
}
Directory
.
CreateDirectory
(
dirSaveTo
)
;
using
(
var
wc
=
new
WebClient
(
)
)
{
await
wc
.
DownloadFileTaskAsync
(
url
,
fileSaveTo
)
.
ConfigureAwait
(
false
)
;
}
}
public
static
async
Task
UnzipAsync
<
TDataSet
>
(
this
IModelLoader
<
TDataSet
>
modelLoader
,
string
zipFile
,
string
saveTo
,
bool
showProgressInConsole
=
false
)
where
TDataSet
:
IDataSet
{
if
(
!
Path
.
IsPathRooted
(
saveTo
)
)
saveTo
=
Path
.
Combine
(
AppContext
.
BaseDirectory
,
saveTo
)
;
Directory
.
CreateDirectory
(
saveTo
)
;
if
(
!
Path
.
IsPathRooted
(
zipFile
)
)
zipFile
=
Path
.
Combine
(
AppContext
.
BaseDirectory
,
zipFile
)
;
var
destFileName
=
Path
.
GetFileNameWithoutExtension
(
zipFile
)
;
var
destFilePath
=
Path
.
Combine
(
saveTo
,
destFileName
)
;
if
(
showProgressInConsole
)
Console
.
WriteLine
(
$
"Unzippinng
{
Path
.
GetFileName
(
zipFile
)
}
"
)
;
if
(
File
.
Exists
(
destFilePath
)
)
{
if
(
showProgressInConsole
)
Console
.
WriteLine
(
$
"The file
{
destFileName
}
already exists"
)
;
}
using
(
GZipStream
unzipStream
=
new
GZipStream
(
File
.
OpenRead
(
zipFile
)
,
CompressionMode
.
Decompress
)
)
{
using
(
var
destStream
=
File
.
Create
(
destFilePath
)
)
{
await
unzipStream
.
CopyToAsync
(
destStream
)
.
ConfigureAwait
(
false
)
;
await
destStream
.
FlushAsync
(
)
.
ConfigureAwait
(
false
)
;
destStream
.
Close
(
)
;
}
unzipStream
.
Close
(
)
;
}
}
public
static
async
Task
ShowProgressInConsole
(
this
Task
task
,
bool
enable
)
{
if
(
!
enable
)
{
await
task
;
return
;
}
var
cts
=
new
CancellationTokenSource
(
)
;
var
showProgressTask
=
ShowProgressInConsole
(
cts
)
;
try
{
await
task
;
}
finally
{
cts
.
Cancel
(
)
;
}
await
showProgressTask
;
Console
.
WriteLine
(
"Done."
)
;
}
private
static
async
Task
ShowProgressInConsole
(
CancellationTokenSource
cts
)
{
var
cols
=
0
;
await
Task
.
Delay
(
100
)
;
while
(
!
cts
.
IsCancellationRequested
)
{
await
Task
.
Delay
(
100
)
;
Console
.
Write
(
"."
)
;
cols
++
;
if
(
cols
%
50
==
0
)
{
Console
.
WriteLine
(
)
;
}
}
if
(
cols
>
0
)
Console
.
WriteLine
(
)
;
}
}
}
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