CODEWITHSUNDEEP
visual-studioxcopypost-build-event
Junior Mayhe
Junior Mayhe

Reputation: 16411

How to use xcopy to only copy files if they are newer?

I have many web applications in a Visual Studio solution.

All have the same post build command:

xcopy "$(TargetDir)*.dll" "D:\Project\bin" /i /d /y

It would be useful to avoid replacing newer files with old ones (e.g. someone could accidentally add a reference to an old version of a DLL).

How can I use xcopy to replace old files only with newer DLL files generated by Visual Studio?

Upvotes: 30

Views: 44071

Answers (3)

AKS
AKS

Reputation: 220

User following command to copy all new and modified file from source to destination

xcopy c:\source d:\destination /D /I /E /Y

/D to check any modified file are there
/I If the destination does not exist and copying more than one file, assumes that destination must be a directory.
/E To copy directory and sub directories
/Y to suppress any over write prompt.

Upvotes: 6

Jim
Jim

Reputation: 19

Not tested, but I use a similar command script for these sorts of tasks.

set DIR_DEST=D:\Project\bin
pushd "$(TargetDir)"

::
:: Move Files matching pattern and delete them
::
for %%g in (*.dll) do (xcopy "%%g" "%DIR_DEST%" /D /Y & del "%%g")

::
:: Move Files matching pattern
::
:: for %%g in (*.dll) do (xcopy "%%g" "%DIR_DEST%" /D /Y )

popd

Upvotes: 1

JAB
JAB

Reputation: 21089

From typing "help xcopy" at the command line:

/D:m-d-y     Copies files changed on or after the specified date.
             If no date is given, copies only those files whose
             source time is newer than the destination time.

So you already are using xcopy to only replace old files with new ones. If that's not happening, you may have to swap the positions of the /i and /d switches.

Upvotes: 33

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