Comment by greenthrow

Comment by greenthrow 5 days ago

14 replies

If you are never getting good suggestions on your PRs that's a bad sign. Any team of more than 2 people should have some ideas sometimes for each other. Either this means everybody's too checked out to put in effort on PRs or they think it'll fall on deaf ears.

I've been a software engineer for decades and even so, teammates will have good ideas sometimes. Nobody can think of every good idea every time.

sarchertech 5 days ago

I said very rarely not never. I classify suggested changes in 2 flavors. The first is minor changes where someone suggests "hey this would be easier to read if you used syntax A vs syntax B here".

I get those frequently, and they are usually reasonable suggestions, and I usually graciously accept them. But I say it's not worth bringing up in a PR because 99% of the time it doesn't actually matter in the long run. Both forms will have been used in the code base previously, and which one you think is better really comes down to which one you use more. It's the kind of thing you could change with a sufficiently opinionated linter. And the kind of thing that isn't worth the cost of mandatory PR reviews.

The 2nd is where someone suggests changes to overall architecture or changes to the way the feature or code works large scale.

These are much rarer because of several reasons

1. PR reviews are almost always surface level and so are more likely to catch category 1 than category 2. The incentives at nearly every tech company push for this. 2. Very frequently one person isn't available to review all of the PRs that go into a feature, so the reviewers lack context. 3. It's very unlikely that even if someone wants to dig deeper, that they have the free time to spend even 1% of the time the person who wrote the PR spent on it.

But the biggest reason I personally don't get many of the 2nd category is because I talk through non-trivial problems with other experienced engineers before I get to the PR stage.

  • greenthrow 5 days ago

    You're missing a third category which is "here's another way you could do this..." which isn't just about legibility but more tangible tradeoffs.

    Certainly I agree architectural decisions shouldn't be made in every PR and ideally should be discussed before that point.

    • sarchertech 5 days ago

      I'd consider that to fall under my category 2

      "changes to overall architecture or changes to the way the feature or code works large scale"

      I'm not saying there's never a reason to go back and redesign something after a PR review, but in my mind getting a design to that point and then actually needing to change it is a huge failure.

      Far more common the case where someone wants a big design change with no tangible benefits just different tradeoffs.

      I just don't think the ocassional benefit is worth the cost of the process.

      • greenthrow 5 days ago

        You're lumping big changes with small changes. If you really won't go back and change one function or one class because someone shared a better idea at the PR stage that's unhealthy and you will improve by letting go of that.

        • sarchertech 5 days ago

          I never said I won't go back and change a single function. And I never said I wouldn't change things larger than that if asked. I would lump small requests like that in with category 1 (of which a syntax change wasn't meant to an exhaustive example).

          What I said was those kind of requests usually aren't meaningful or impactful long term. They very very rarely make or save anyone a single dollar. Let alone enough money to justify the time spent on the review process.

          If you've already spent the time to suggest the change, if it's slightly better, sure I'll make it. Even if it's not any better, as long as it's not worse, if you feel strongly about it, there's a good chance I'll go along. I just don't think the process has a positive ROI, and I've yet to see any data to convince me otherwise.

rr808 5 days ago

The problem is the good ideas should come before or while you start coding. By the time the PR is done isn't the right time to rewrite it.

  • greenthrow 5 days ago

    What? This is absolutely incorrect. There's be no point in PRs if it's too late to change anything. Part of the point is to reduce the number of synchronous discussions your team has to have about code before writing it. PRs let you iterate on actual code instead of endlessly discussing hypothetical implementations.

    • agentultra 5 days ago

      This is a huge pet peeve for me.

      You’d kill your teams velocity if you did this for every PR.

      I worked on a team once with… Perfectionist Petra. Petra would jump on an 1200 line refactor that was blocking the team and demand changes that would require it to be rewritten. Not changes that would save the code base from grievous error: Petra didn’t like the pattern used or didn’t approve of the design.

      Sufficient tests? Check. Linted and formatted? Check. Does Petra approve? Big variable. I often wanted to tell Petra if they could just write the code out for me in a ticket so I could copy it for them. Instead I had to try and read Petra’s mind or hope they wouldn’t jump on my PR.

      Sometimes you have to trust your teammate and not let the perfect plan interfere with a good enough one.

      • greenthrow 5 days ago

        I'm not advocating for constant nitpicking or demanding perfection. But somewhere between that and "PRs are too late for changes" is where most good teams operate.

seb1204 5 days ago

OPP mentioned that this is happening but in discussion prior to PR. Makes sense to me.