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git: use signed loop counters when comparing with signed vars

Open AZero13 opened this issue 1 year ago • 14 comments

The compiler (at least LLVM) treats them better anyway because of the C standard not defining signed overflow.

AZero13 avatar Dec 15 '24 03:12 AZero13

Welcome to GitGitGadget

Hi @AreaZR, and welcome to GitGitGadget, the GitHub App to send patch series to the Git mailing list from GitHub Pull Requests.

Please make sure that either:

  • Your Pull Request has a good description, if it consists of multiple commits, as it will be used as cover letter.
  • Your Pull Request description is empty, if it consists of a single commit, as the commit message should be descriptive enough by itself.

You can CC potential reviewers by adding a footer to the PR description with the following syntax:

CC: Revi Ewer <[email protected]>, Ill Takalook <[email protected]>

NOTE: DO NOT copy/paste your CC list from a previous GGG PR's description, because it will result in a malformed CC list on the mailing list. See example.

Also, it is a good idea to review the commit messages one last time, as the Git project expects them in a quite specific form:

  • the lines should not exceed 76 columns,
  • the first line should be like a header and typically start with a prefix like "tests:" or "revisions:" to state which subsystem the change is about, and
  • the commit messages' body should be describing the "why?" of the change.
  • Finally, the commit messages should end in a Signed-off-by: line matching the commits' author.

It is in general a good idea to await the automated test ("Checks") in this Pull Request before contributing the patches, e.g. to avoid trivial issues such as unportable code.

Contributing the patches

Before you can contribute the patches, your GitHub username needs to be added to the list of permitted users. Any already-permitted user can do that, by adding a comment to your PR of the form /allow. A good way to find other contributors is to locate recent pull requests where someone has been /allowed:

Both the person who commented /allow and the PR author are able to /allow you.

An alternative is the channel #git-devel on the Libera Chat IRC network:

<newcontributor> I've just created my first PR, could someone please /allow me? https://github.com/gitgitgadget/git/pull/12345
<veteran> newcontributor: it is done
<newcontributor> thanks!

Once on the list of permitted usernames, you can contribute the patches to the Git mailing list by adding a PR comment /submit.

If you want to see what email(s) would be sent for a /submit request, add a PR comment /preview to have the email(s) sent to you. You must have a public GitHub email address for this. Note that any reviewers CC'd via the list in the PR description will not actually be sent emails.

After you submit, GitGitGadget will respond with another comment that contains the link to the cover letter mail in the Git mailing list archive. Please make sure to monitor the discussion in that thread and to address comments and suggestions (while the comments and suggestions will be mirrored into the PR by GitGitGadget, you will still want to reply via mail).

If you do not want to subscribe to the Git mailing list just to be able to respond to a mail, you can download the mbox from the Git mailing list archive (click the (raw) link), then import it into your mail program. If you use GMail, you can do this via:

curl -g --user "<EMailAddress>:<Password>" \
    --url "imaps://imap.gmail.com/INBOX" -T /path/to/raw.txt

To iterate on your change, i.e. send a revised patch or patch series, you will first want to (force-)push to the same branch. You probably also want to modify your Pull Request description (or title). It is a good idea to summarize the revision by adding something like this to the cover letter (read: by editing the first comment on the PR, i.e. the PR description):

Changes since v1:
- Fixed a typo in the commit message (found by ...)
- Added a code comment to ... as suggested by ...
...

To send a new iteration, just add another PR comment with the contents: /submit.

Need help?

New contributors who want advice are encouraged to join [email protected], where volunteers who regularly contribute to Git are willing to answer newbie questions, give advice, or otherwise provide mentoring to interested contributors. You must join in order to post or view messages, but anyone can join.

You may also be able to find help in real time in the developer IRC channel, #git-devel on Libera Chat. Remember that IRC does not support offline messaging, so if you send someone a private message and log out, they cannot respond to you. The scrollback of #git-devel is archived, though.

gitgitgadget-git[bot] avatar Dec 15 '24 03:12 gitgitgadget-git[bot]

There are issues in commit d91ddf41391fa074542aa573abc2908c27bf75b2: git: Use signed counters when comparing with signed vars Prefixed commit message must be in lower case

gitgitgadget-git[bot] avatar Dec 15 '24 03:12 gitgitgadget-git[bot]

Error: User DTeachs is not yet permitted to use GitGitGadget

gitgitgadget-git[bot] avatar Dec 15 '24 03:12 gitgitgadget-git[bot]

/allow

dscho avatar Dec 16 '24 07:12 dscho

User AreaZR is now allowed to use GitGitGadget.

WARNING: AreaZR has no public email address set on GitHub; GitGitGadget needs an email address to Cc: you on your contribution, so that you receive any feedback on the Git mailing list. Go to https://github.com/settings/profile to make your preferred email public to let GitGitGadget know which email address to use.

gitgitgadget-git[bot] avatar Dec 16 '24 07:12 gitgitgadget-git[bot]

@AreaZR I also edited out the welcome message from the PR description: this description is sent as cover letter, and leaving in this message would not be well-received on the Git mailing list.

dscho avatar Dec 16 '24 07:12 dscho

Submitted as [email protected]

To fetch this version into FETCH_HEAD:

git fetch https://github.com/gitgitgadget/git/ pr-git-1843/AreaZR/one-more-time-v1

To fetch this version to local tag pr-git-1843/AreaZR/one-more-time-v1:

git fetch --no-tags https://github.com/gitgitgadget/git/ tag pr-git-1843/AreaZR/one-more-time-v1

gitgitgadget-git[bot] avatar Dec 18 '24 00:12 gitgitgadget-git[bot]

Submitted as [email protected]

To fetch this version into FETCH_HEAD:

git fetch https://github.com/gitgitgadget/git/ pr-git-1843/AreaZR/one-more-time-v2

To fetch this version to local tag pr-git-1843/AreaZR/one-more-time-v2:

git fetch --no-tags https://github.com/gitgitgadget/git/ tag pr-git-1843/AreaZR/one-more-time-v2

gitgitgadget-git[bot] avatar Dec 18 '24 01:12 gitgitgadget-git[bot]

Submitted as [email protected]

To fetch this version into FETCH_HEAD:

git fetch https://github.com/gitgitgadget/git/ pr-git-1843/AreaZR/one-more-time-v3

To fetch this version to local tag pr-git-1843/AreaZR/one-more-time-v3:

git fetch --no-tags https://github.com/gitgitgadget/git/ tag pr-git-1843/AreaZR/one-more-time-v3

gitgitgadget-git[bot] avatar Dec 18 '24 03:12 gitgitgadget-git[bot]

User AreaZR is now allowed to use GitGitGadget.

WARNING: AreaZR has no public email address set on GitHub; GitGitGadget needs an email address to Cc: you on your contribution, so that you receive any feedback on the Git mailing list. Go to https://github.com/settings/profile to make your preferred email public to let GitGitGadget know which email address to use.

@AZero13 just how often do you change your GitHub handle?!?

dscho avatar Jan 24 '25 13:01 dscho

User AreaZR is now allowed to use GitGitGadget.

WARNING: AreaZR has no public email address set on GitHub; GitGitGadget needs an email address to Cc: you on your contribution, so that you receive any feedback on the Git mailing list. Go to https://github.com/settings/profile to make your preferred email public to let GitGitGadget know which email address to use.

@AZero13 just how often do you change your GitHub handle?!?

I've only ever changed it 2 times in the last 5 years.

AZero13 avatar Jan 24 '25 15:01 AZero13

I'm not planning on changing it again anytime soon

AZero13 avatar Jan 24 '25 15:01 AZero13

/allow

dscho avatar Mar 21 '25 20:03 dscho

User AZero13 is now allowed to use GitGitGadget.

WARNING: AZero13 has no public email address set on GitHub; GitGitGadget needs an email address to Cc: you on your contribution, so that you receive any feedback on the Git mailing list. Go to https://github.com/settings/profile to make your preferred email public to let GitGitGadget know which email address to use.

gitgitgadget-git[bot] avatar Mar 21 '25 20:03 gitgitgadget-git[bot]