CODEWITHSUNDEEP
commandperforcep4v
sandeep kamath
sandeep kamath

Reputation: 141

Perforce: find previous submitted changelist number via command line

Suppose I know a changelist that has some issues with the build. I want to know the previously submitted changelist so that I can sync to it.

I know a way to get it from p4v. I want to know how to get it via the p4 command so that I can add it to the bash script.

Ex. Changelist previous to 553682 is 553642

changelist number is managed by perforce across all the code base so i cannot reduce a number and take it.

Upvotes: 1

Views: 235

Answers (1)

Samwise
Samwise

Reputation: 71424

Just subtract 1. If changelist @553682 is the broken one, syncing to @553681 will give you the revisions prior to those in that changelist.

This works even if change 553681 doesn't exist (i.e. the number got skipped), or if it's a changelist that affects a different part of the codebase. When you use a changelist as a revision specifier it defines the upper bound (in changelist terms) of all the revisions that will be affected by the operation; since changelists are strictly increasing, changelist numbers are always comparable in a straightforward way, similar to timestamps (i.e. you can sync to a particular point in time even if nothing was submitted at that precise nanosecond; you'll just get whatever was current as of that point in time).

tl;dr yes, just "reduce the number and take it," it'll work.

Upvotes: 1

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