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Revert "Auto merge of #105058 - Nilstrieb:no-merge-commits, r=jyn514" #106320

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merged 1 commit into from
Dec 31, 2022

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@jyn514 jyn514 commented Dec 31, 2022

This reverts commit 4839886, reversing changes made to ce85c98.

Fixes #106232 (comment).

r? @jyn514

…or-you-only-bors-is-allowed-to-do-that, r=jyn514"

This reverts commit 4839886, reversing
changes made to ce85c98.
@rustbot rustbot added T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) A-testsuite Area: The testsuite used to check the correctness of rustc S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-infra Relevant to the infrastructure team, which will review and decide on the PR/issue. labels Dec 31, 2022
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jyn514 commented Dec 31, 2022

@bors r+ p=1000

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bors commented Dec 31, 2022

📌 Commit 90a10ca has been approved by jyn514

It is now in the queue for this repository.

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bors commented Dec 31, 2022

🌲 The tree is currently closed for pull requests below priority 500. This pull request will be tested once the tree is reopened.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Dec 31, 2022
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bors commented Dec 31, 2022

⌛ Testing commit 90a10ca with merge 5570cda...

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bors commented Dec 31, 2022

☀️ Test successful - checks-actions
Approved by: jyn514
Pushing 5570cda to master...

@bors bors added the merged-by-bors This PR was explicitly merged by bors. label Dec 31, 2022
@bors bors merged commit 5570cda into rust-lang:master Dec 31, 2022
@rustbot rustbot added this to the 1.68.0 milestone Dec 31, 2022
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Finished benchmarking commit (5570cda): comparison URL.

Overall result: no relevant changes - no action needed

@rustbot label: -perf-regression

Instruction count

This benchmark run did not return any relevant results for this metric.

Max RSS (memory usage)

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

mean range count
Regressions ❌
(primary)
2.2% [2.2%, 2.2%] 1
Regressions ❌
(secondary)
- - 0
Improvements ✅
(primary)
- - 0
Improvements ✅
(secondary)
- - 0
All ❌✅ (primary) 2.2% [2.2%, 2.2%] 1

Cycles

This benchmark run did not return any relevant results for this metric.

@jyn514 jyn514 deleted the revert-merge-check branch February 25, 2023 18:32
matthiaskrgr added a commit to matthiaskrgr/rust that referenced this pull request Oct 16, 2023
Enable triagebot no-merges check

Follow-up on rust-lang/triagebot#1704

### Motivation

Occasionally, a merge commit like rust-lang@cb5c011 makes it past manual review and gets merged into master.

At one point, we tried adding a check to CI to prevent this from happening (rust-lang#105058), but that ended up [problematic](rust-lang#106319 (comment)) and was [reverted](rust-lang#106320). This kind of check is simply too fragile for CI, and there must be a way for a human to override the bot's decision.

The capability to detect and warn about merge commits has been present in triagebot for quite some time, but was never enabled at rust-lang/rust, possibly due to concerns about false positives on rollup and subtree sync PRs. This PR intends to alleviate those concerns.

### Configuration

This configuration will exclude rollup PRs and subtree sync PRs from merge commit detection, and it will post the default warning message and add the `has-merge-commits` and `S-waiting-on-author` labels when merge commits are detected on other PRs.

The eventual vision is to have bors refuse to merge if the `has-merge-commits` label is present. A reviewer can still force the merge by removing that label if they so wish.

### Note for contributors

The rollup tool should add that label automatically, but anyone performing subtree updates should begin including "subtree update" in the titles of those PRs, to avoid false positives.

r? infra

## Open Questions

1. This configuration uses the default message that's built into triagebot:

> There are merge commits (commits with multiple parents) in your changes. We have a [no merge policy](https://rustc-dev-guide.rust-lang.org/git.html#no-merge-policy) so these commits will need to be removed for this pull request to be merged.
>
> You can start a rebase with the following commands:
> ```shell-session
> $ # rebase
> $ git rebase -i master
> $ # delete any merge commits in the editor that appears
> $ git push --force-with-lease
> ```

Any changes to this are easy, I'll just have to add a `message` option. Should we mention the excluded titles in the message?
rust-timer added a commit to rust-lang-ci/rust that referenced this pull request Oct 16, 2023
Rollup merge of rust-lang#114157 - pitaj:triagebot_no-merges, r=ehuss

Enable triagebot no-merges check

Follow-up on rust-lang/triagebot#1704

### Motivation

Occasionally, a merge commit like rust-lang@cb5c011 makes it past manual review and gets merged into master.

At one point, we tried adding a check to CI to prevent this from happening (rust-lang#105058), but that ended up [problematic](rust-lang#106319 (comment)) and was [reverted](rust-lang#106320). This kind of check is simply too fragile for CI, and there must be a way for a human to override the bot's decision.

The capability to detect and warn about merge commits has been present in triagebot for quite some time, but was never enabled at rust-lang/rust, possibly due to concerns about false positives on rollup and subtree sync PRs. This PR intends to alleviate those concerns.

### Configuration

This configuration will exclude rollup PRs and subtree sync PRs from merge commit detection, and it will post the default warning message and add the `has-merge-commits` and `S-waiting-on-author` labels when merge commits are detected on other PRs.

The eventual vision is to have bors refuse to merge if the `has-merge-commits` label is present. A reviewer can still force the merge by removing that label if they so wish.

### Note for contributors

The rollup tool should add that label automatically, but anyone performing subtree updates should begin including "subtree update" in the titles of those PRs, to avoid false positives.

r? infra

## Open Questions

1. This configuration uses the default message that's built into triagebot:

> There are merge commits (commits with multiple parents) in your changes. We have a [no merge policy](https://rustc-dev-guide.rust-lang.org/git.html#no-merge-policy) so these commits will need to be removed for this pull request to be merged.
>
> You can start a rebase with the following commands:
> ```shell-session
> $ # rebase
> $ git rebase -i master
> $ # delete any merge commits in the editor that appears
> $ git push --force-with-lease
> ```

Any changes to this are easy, I'll just have to add a `message` option. Should we mention the excluded titles in the message?
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4 participants