CODEWITHSUNDEEP
perforce
Chang Zhao
Chang Zhao

Reputation: 631

How can we checkout a specific revsion of a file in perforce?

I want to checkout an older specific version from the command line, How can I do that ? couldn't find any help in documentation in p4 docs.

Upvotes: 0

Views: 3196

Answers (1)

Samwise
Samwise

Reputation: 71574

The word "checkout" isn't standard terminology in Perforce; if you're coming from git then what you call "checkout" is "sync" (and also "revert" and "switch" because of how badly "git checkout" is overloaded), but "checkout" is also sometimes used to refer to "opening" a file in Perforce, which is sort of like "staging" in git but not exactly.

I'll describe how to both "sync" and "open" a file and you can figure out which operation corresponds to whatever you're trying to do.

To sync a file from the depot into your workspace, use the p4 sync command:

p4 sync FILE#VERSION

If no VERSION is specified, the default is #head (the latest). If no FILE is specified, the entire workspace is synced.

After a file is synced, it is read-only in your workspace; you can view the file, build, test, etc, but the file itself may not be modified until it's opened.

To open a file for edit (so that you can make changes to it and then submit those changes to the depot), use the p4 edit command:

p4 edit FILE

Whatever version has been synced to your workspace is the one that is opened for edit by this command. If you want to submit your change, you will need to resolve the later changes first, but you have the option when resolving of discarding those changes. (If your primary intent is to discard specific changes, you can do this more directly with the undo command.)

You can view currently-synced files with the p4 have command, and currently-open files with the p4 opened command.

Upvotes: 1

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