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P4 Server Administration Documentation | 2025.1

# Set up a server for Unicode

When you set up a server for Unicode, be aware that:

- A P4 server that is in Unicode mode cannot be changed to non-Unicode mode.

- 1,024 bytes is the limit for the length of strings used to index job descriptions, to specify filenames and view mappings, and to identify objects such as such as client workspaces, labels, users, depots, servers, streams, branches, extensions.

## Configuring a new server for Unicode

To configure a new server for Unicode, start the server:

    $ p4d -xi -r server_root [other options]

This command verifies that all existing metadata is valid UTF8, and sets the protected counter `unicode` to indicate that the server now runs in Unicode mode. If you stop and restart the server, it remains in Unicode mode.

When a client connects to the server, it attempts to discover what the server’s setting is, and it sets the `P4_`port`_CHARSET` variable to reflect that setting. If the server is not in unicode mode, the variable is set to `none`. If the server is set to Unicode, the variable is set to `auto`. Likewise, the client sets the `P4CHARSET` variable to `auto`. The client then examines its environment to figure out what character set it needs to select.

The `P4_`port`_CHARSET` variable is stored in a file called `.p4enviro`. By default, this file is stored in the user’s home directory. To change the file location, the user must set the `P4ENVIRO` variable to the desired path.

## Configuring an existing server for Unicode

To convert an existing server to Unicode mode, perform the following steps:

1. Stop the server by issuing the `p4 admin stop` command.
2. Create a server checkpoint, as described in Backup and recovery.

3. Convert the server to Unicode mode by invoking the server (`p4d`) and specifying the `-xi` flag, for example:

   `p4d -xi -r `server_root``

   The server verifies that its existing metadata contains only valid UTF-8 characters, then creates and sets a protected configurable called `unicode` that is used as a flag to ensure that the next time you start the server, it runs in Unicode mode. After validating metadata and setting the configurable, `p4d` exits and displays the following message:

       Server switched to Unicode mode.

   If the server detects invalid characters in its metadata, it displays error messages like the following:

       Table db.job has 7 rows with invalid UTF8.

   In case of such errors, contact Perforce Technical Support for instructions on locating and correcting the invalid characters.

4. Restart `p4d`, specifying server root and port as you normally do. The server now runs in Unicode mode.

When a client connects to the server, it attempts to discover what the server’s setting is, and it sets the `P4_`port`_CHARSET` variable to reflect that setting:

- If the server is not in Unicode mode, the variable is set to `none`.
- If the server is set to Unicode, the variable is set to `auto`. Likewise, the client sets the `P4CHARSET` variable to `auto`. The client then examines its environment to figure out which character set it needs to select.

The default location of the `P4_`port`_CHARSET` variable depends on your operating system:

- On UNIX or on the Mac, the `P4_`port`_CHARSET` variable is stored in a file called `.p4enviro`. By default, this file is stored in the user’s home directory. To change the file location, the user must set the `P4ENVIRO` variable to the desired path.
- On Windows, the `P4_`port`_CHARSET` variable is stored in the registry. To store it in a file, use the `p4 set P4ENVIRO` command and specify the path of the file where you want to store the value.

## Localizing server error messages

By default, informational and error messages are in English. You can localize P4 Server messages. To ensure best results, contact Perforce Technical Support. The following overview explains the localization process.

To localize P4 Server messages:

1. Obtain the message file from Perforce Technical Support.

2. Edit the message file, translating messages to the target language. Each message includes a two-character language code. Change the language code from `en` (English) to the code for the target language. Do not translate any of the key parameters or named parameters (which are specified between percent signs and single quotes, for example, `%depot%`). You can change the order in which the parameters appear in the message.

   Original English:

       @en@ 0 @db.message@ @en@ 822220833 @Depot '%depot%' unknown - use 'depot' to create it.@

   Correct translation to Portuguese (note reordered parameters):

       @pt@ 0 @db.message@ @pt@ 822220833 @Depot '%depot' inexistente - use o comando 'depot' para criar-lo.@

   Although you are free to use any two-letter language code to designate the target language (so long as it’s not "en," you might want to use a standard convention, such as the one described here:

   http://www.w3schools.com/tags/ref_language_codes.asp

   Many messages use P4 Server command names. It is important to distinguish the word as a command name from the word as a description. For example:

       @Depot '%depot%' unknown - use 'depot' to create it.@

   In this case, `depot` and `%depot%` should not be translated.

3. Load the translated messages into the server by issuing the following command:

       $ p4d -jr /fullpath/message.txt

   This command creates a `db.message` file in the server root. The Perforce service uses this database file when it displays error messages. The proxy can also use this `db.message` file. See Localize P4P.

4. The character set of the resulting translation needs to be UTF-8 for unicode mode servers. That file should not have a leading Byte-order-mark (BOM).

   If the target server is not in Unicode mode, the translation file does not need to be in UTF-8. In this case you might want multiple instances of the translated messages in multiple character sets. You can effect this by combining the language code field with a character set name. For example, `@ru_koi8-r@` to indicate Russian with a `koi8-r` encoding versus `@ru_iso8859-5@` to indicate Russian with an ISQ encoding.

5. You can load translated message files into a p4d server by recovering them with the server’s journal recovery command:

       $ p4d -r server_root -jr translated_message_file

To view localized messages, set the `P4LANGUAGE` environment variable on user workstations to the language code you assigned to the messages in the translated message file. For example, to have your messages returned in Portuguese, set `P4LANGUAGE` to `pt`.

To view localized messages using P4V, you must set the `LANG` environment variable to the language code that you use in the messages file.

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