[PATCH] fileset: perform membership test against set for status queries

[Ryan McElroy]

On 3/28/17 10:41 PM, Gregory Szorc wrote:
> # HG changeset patch
> # User Gregory Szorc <gregory.szorc at gmail.com>
> # Date 1490737213 25200
> #      Tue Mar 28 14:40:13 2017 -0700
> # Node ID cf6393b6a3503f8885b704407e5bd58a89b96dfe
> # Parent  e86eb75e74ce1b0803c26d86a229b9b711f6d76a
> fileset: perform membership test against set for status queries
>
> Previously, fileset functions operating on status items performed
> membership tests against a list of items. When there are thousands
> of items having a specific status, that test can be extremely
> slow. Changing the membership test to a set makes this operation
> substantially faster.
>
> On the mozilla-central repo:
>
> $ hg files -r d14cac631ecc 'set:added()'
> before: 28.120s
> after:   0.860s
>
> $ hg status --change d14cac631ecc --added
> 0.690s

Awesome wins!

>
> diff --git a/mercurial/fileset.py b/mercurial/fileset.py
> --- a/mercurial/fileset.py
> +++ b/mercurial/fileset.py
> @@ -154,7 +154,7 @@ def modified(mctx, x):
>       """
>       # i18n: "modified" is a keyword
>       getargs(x, 0, 0, _("modified takes no arguments"))
> -    s = mctx.status().modified
> +    s = set(mctx.status().modified)
>       return [f for f in mctx.subset if f in s]
>   
>   @predicate('added()', callstatus=True)
> @@ -163,7 +163,7 @@ def added(mctx, x):
>       """
>       # i18n: "added" is a keyword
>       getargs(x, 0, 0, _("added takes no arguments"))
> -    s = mctx.status().added
> +    s = set(mctx.status().added)
>       return [f for f in mctx.subset if f in s]
>   
>   @predicate('removed()', callstatus=True)
> @@ -172,7 +172,7 @@ def removed(mctx, x):
>       """
>       # i18n: "removed" is a keyword
>       getargs(x, 0, 0, _("removed takes no arguments"))
> -    s = mctx.status().removed
> +    s = set(mctx.status().removed)
>       return [f for f in mctx.subset if f in s]
>   
>   @predicate('deleted()', callstatus=True)
> @@ -181,7 +181,7 @@ def deleted(mctx, x):
>       """
>       # i18n: "deleted" is a keyword
>       getargs(x, 0, 0, _("deleted takes no arguments"))
> -    s = mctx.status().deleted
> +    s = set(mctx.status().deleted)
>       return [f for f in mctx.subset if f in s]
>   
>   @predicate('missing()', callstatus=True)
> @@ -190,7 +190,7 @@ def missing(mctx, x):
>       """
>       # i18n: "missing" is a keyword
>       getargs(x, 0, 0, _("missing takes no arguments"))
> -    s = mctx.status().deleted
> +    s = set(mctx.status().deleted)
>       return [f for f in mctx.subset if f in s]
>   
>   @predicate('unknown()', callstatus=True)
> @@ -200,7 +200,7 @@ def unknown(mctx, x):
>       """
>       # i18n: "unknown" is a keyword
>       getargs(x, 0, 0, _("unknown takes no arguments"))
> -    s = mctx.status().unknown
> +    s = set(mctx.status().unknown)
>       return [f for f in mctx.subset if f in s]
>   
>   @predicate('ignored()', callstatus=True)
> @@ -210,7 +210,7 @@ def ignored(mctx, x):
>       """
>       # i18n: "ignored" is a keyword
>       getargs(x, 0, 0, _("ignored takes no arguments"))
> -    s = mctx.status().ignored
> +    s = set(mctx.status().ignored)
>       return [f for f in mctx.subset if f in s]
>   
>   @predicate('clean()', callstatus=True)
> @@ -219,7 +219,7 @@ def clean(mctx, x):
>       """
>       # i18n: "clean" is a keyword
>       getargs(x, 0, 0, _("clean takes no arguments"))
> -    s = mctx.status().clean
> +    s = set(mctx.status().clean)
>       return [f for f in mctx.subset if f in s]
>   
>   def func(mctx, a, b):
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