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Configure file compression

Set up the compression settings to reduce file sizes.
Read time 1 minuteLast updated a month ago
Use compression to reduce the size of files in your Unity Version Control (UVCS) system, save storage space, and speed up data transfer. You can use the 
compression.conf
file on the UVCS client to select the compression type. Find the 
compression.conf
file in the following locations:
  • On Linux or macOS: 
    $HOME/.plastic4
    .
  • On WIndows: 
    C:\Users\user\AppData\Local\plastic4
    .
  • The root directory of your workspace.

Compression methods

You can select the type of compression that UVCS uses to store a new revision of a file in your database. The following operations create new changesets, which may contain new revisions that the compression rules affect:
  • check-in
  • fast import
  • sync replication
The 
compression.conf
file supports the following compression options:
  • None
  • .zip
If the compression.conf file doesn't exist then the compression type of any file is 
.zip
. 

compression.conf
file configuration

Each line of the 
compression.conf
file defines a compression type followed by a whitespace and a rule to match the file path. For example: 
none .jpgzip .txt
This example 
compression.conf
file ensures that UVCS compresses all 
.txt
files as 
.zip
files but doesn't compress any 
.jpeg
files.

Compression rules

You can specify different types of rules, and the following is the order of application:
  1. File path rule
  2. File name rule
  3. File extension rule
  4. Wildcard rule
For example: 
  1. /dir/foo.png
  2. foo.png
  3. .png
  4. /**/foo*.???
If a file path matches with a path rule, that rule defines the compression type. If not, UVCS tries to match the file with a file name rule. For example, if you have the following 
compression.conf
file under the 
wkstest
workspace and you perform a checkin on the 
main-test.png
, 
user1-test.png
and 
test-result.png
files, UVCS checks in all the 
.png
files but the 
/test01/main-test.png
file with the 
.zip
compression method: 
zip .pngnone /test01/main-test.png