From: Jeff King <peff@peff.net>
To: Johannes Schindelin <johannes.schindelin@gmx.de>
Cc: git@vger.kernel.org, Junio C Hamano <gitster@pobox.com>
Subject: Re: [PATCH v2 3/8] help: use early config when autocorrecting aliases
Date: Sat, 10 Jun 2017 05:05:36 -0400 [thread overview]
Message-ID: <20170610090536.zqsiqi72ffpqt2ue@sigill.intra.peff.net> (raw)
In-Reply-To: <2be3d75cd3341c1386f97c77cc63bec89c1f6a47.1496951503.git.johannes.schindelin@gmx.de>
On Thu, Jun 08, 2017 at 09:53:38PM +0200, Johannes Schindelin wrote:
> Git has this feature which suggests similar commands (including aliases)
> in case the user specified an unknown command.
>
> This feature currently relies on a side effect of the way we expand
> aliases right now: when a command is not a builtin, we use the regular
> config machinery (meaning: discovering the .git/ directory and
> initializing global state such as the config cache) to see whether the
> command refers to an alias.
>
> However, we will change the way aliases are expanded in the next
> commits, to use the early config instead. That means that the
> autocorrect feature can no longer discover the available aliases by
> looking at the config cache (because it has not yet been initialized).
>
> So let's just use the early config machinery instead.
>
> This is slightly less performant than the previous way, as the early
> config is used *twice*: once to see whether the command refers to an
> alias, and then to see what aliases are most similar. However, this is
> hardly a performance-critical code path, so performance is less important
> here.
Good explanation, and the patch looks obviously correct.
-Peff
next prev parent reply other threads:[~2017-06-10 9:05 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-08 19:53 [PATCH v2 0/8] Avoid problem where git_dir is set after alias expansion Johannes Schindelin
2017-06-08 19:53 ` [PATCH v2 1/8] discover_git_directory(): avoid setting invalid git_dir Johannes Schindelin
2017-06-10 8:40 ` Jeff King
2017-06-08 19:53 ` [PATCH v2 2/8] config: report correct line number upon error Johannes Schindelin
2017-06-10 9:04 ` Jeff King
2017-06-13 11:02 ` Johannes Schindelin
2017-06-13 11:28 ` Jeff King
2017-06-08 19:53 ` [PATCH v2 3/8] help: use early config when autocorrecting aliases Johannes Schindelin
2017-06-10 9:05 ` Jeff King [this message]
2017-06-08 19:53 ` [PATCH v2 4/8] read_early_config(): optionally return the worktree's top-level directory Johannes Schindelin
2017-06-10 9:44 ` Jeff King
2017-06-08 19:53 ` [PATCH v2 5/8] t1308: relax the test verifying that empty alias values are disallowed Johannes Schindelin
2017-06-10 4:29 ` Junio C Hamano
2017-06-13 10:50 ` Johannes Schindelin
2017-06-13 12:59 ` Junio C Hamano
2017-06-08 19:53 ` [PATCH v2 6/8] t7006: demonstrate a problem with aliases in subdirectories Johannes Schindelin
2017-06-08 19:53 ` [PATCH v2 7/8] alias_lookup(): optionally return top-level directory Johannes Schindelin
2017-06-10 10:18 ` Jeff King
2017-06-13 11:21 ` Johannes Schindelin
2017-06-13 11:29 ` Jeff King
2017-06-13 11:42 ` Johannes Schindelin
2017-06-13 11:42 ` Jeff King
2017-06-13 16:40 ` Junio C Hamano
2017-06-14 6:02 ` Jeff King
2017-06-14 10:03 ` Johannes Schindelin
2017-06-08 19:53 ` [PATCH v2 8/8] Use the early config machinery to expand aliases Johannes Schindelin
2017-06-10 10:07 ` Jeff King
2017-06-10 10:10 ` Jeff King
2017-06-12 20:43 ` Junio C Hamano
2017-06-13 11:25 ` Johannes Schindelin
2017-06-13 11:30 ` Jeff King
2017-06-08 22:32 ` [PATCH v2 0/8] Avoid problem where git_dir is set after alias expansion Brandon Williams
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