# Fwd: Bug#793884: git: allows nonsensical command 'git checkout -b HEAD' 2 messages from 2015-07-28 to 2015-07-28. Participants: Duy Nguyen, Junio C Hamano. Thread: https://gitlist.dev/t/39954 ## Duy Nguyen, 2015-07-28 14:33 Subject: Fwd: Bug#793884: git: allows nonsensical command 'git checkout -b HEAD' Message-ID: URL: https://gitlist.dev/e/CACsJy8Atx7h8LHQ26rTx2jPUxL-%2BMSLva8njdoUs5%2BAq-Eoj4Q%40mail.gmail.com In-Reply-To: <20150728141858.22342.16605.reportbug@zam581.zam.kfa-juelich.de> ``` This seems like a good thing to fix (i.e. make sure XX is not ambiguous before creating it with "git checkout -b XX") ---------- Forwarded message ---------- From: Andreas Beckmann Date: Tue, Jul 28, 2015 at 9:18 PM Subject: Bug#793884: git: allows nonsensical command 'git checkout -b HEAD' To: Debian Bug Tracking System Package: git Version: 1:2.1.4-2.1 Severity: normal Tags: upstream $ git branch HEAD fatal: it does not make sense to create 'HEAD' manually # OK, special casing prevents this $ git checkout -b HEAD Switched to a new branch 'HEAD' # but not this :-P $ git checkout master Switched to branch 'master' $ git checkout HEAD warning: refname 'HEAD' is ambiguous. Switched to branch 'HEAD' # oops ;-) $ git checkout master Switched to branch 'master' $ git branch -d HEAD Deleted branch HEAD (was 6e54945). # OK, we can easily cleanup this mess again The same works in 1:2.4.6-1 in sid. If there is some special casing for HEAD in git branch, the same should probably be done for git checkout -b, too. Andreas -- Duy ``` ## Junio C Hamano, 2015-07-28 16:32 Subject: Re: Fwd: Bug#793884: git: allows nonsensical command 'git checkout -b HEAD' Message-ID: URL: https://gitlist.dev/e/xmqqmvygfdjs.fsf%40gitster.dls.corp.google.com In-Reply-To: ``` Duy Nguyen writes: > This seems like a good thing to fix (i.e. make sure XX is not > ambiguous before creating it with "git checkout -b XX") Yeah, sounds like an easy lunch-time hack low-hanging fruit :-). ```