GNU bug report logs - #44675
guix lint: support for spellchecker or basic grammar

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From: Vagrant Cascadian <vagrant <at> debian.org>
To: zimoun <zimon.toutoune <at> gmail.com>
Cc: Ludovic Courtès <ludo <at> gnu.org>, 44675 <at> debbugs.gnu.org
Subject: bug#44675: guix lint: support for spellchecker or basic grammar
Date: Sun, 24 Oct 2021 04:22:14 -0700

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On 2021-10-22, zimoun wrote:
> On Thu, 21 Oct 2021 at 16:18, Vagrant Cascadian <vagrant <at> debian.org> wrote:
>
>> It has been rewritten to easily add new typo checks, but this one so far
>> only addresses pluralized "This packages". Would be easy enough to add
>> "allows to" but hard to add a suggested fix...
>
> If I remember correctly the previous discussion, Debian uses an external
> tool for spellchecking.  Here, the patch uses a list of “common”
> mistakes.  It is seems an easy good start. :-)

Yes, I definitely went for "catch some useful things" rather than trying
to be comprehensive... these checks should catch the majority of
historical ones I've noticed, but I didn't bother adding one-off typos.


> Instead, I would use a list of alist ’typo-corrections’ as argument.
> For instance,
>
> --8<---------------cut here---------------start------------->8---
> (define (check-description-typo description typo-corrections)
>   (for-each
>    (match-lambda
>      ((typo . correction)
>       (if (string-contains description typo)
>           (list
>            (make-warning ...))
>           '())))
>    typo-corrections))
> --8<---------------cut here---------------end--------------->8---

So close! Ludo spotted that the for-each needed to be replaced with
append-map, and that basically did it!


>             (check-description-typo description '(("This packages" . "This package")))
>
> which allows easily to add new pattern; such as,
>
>         '(("This packages" . "This package")
>           ("this packages" . "this package")
>           ("This modules" . "This module"))
>
> Then, as a second step, depending on the patterns listed, let see if
> there is a pattern inside these patterns. ;-) (Check both capitalize and
> lower-case, etc.)

I haven't seen case issues in practice for these.

I've added "This packages", "This modules", "allows to" and "permits to"
to the list while I was at it. I only added tests for "This packages"
and "allows to" as the others are so similar I'm not sure it's worth
testing...

Here's to hoping for a guix with fewer glaring typos with which to craft
guix poetry. :)


New patch attached!


live well,
  vagrant

[0001-lint-Add-description-check-for-common-typos.patch (text/x-diff, inline)]

From a171769da0f737468e06866164eadf1e720764ba Mon Sep 17 00:00:00 2001
From: Vagrant Cascadian <vagrant <at> debian.org>
Date: Sun, 24 Oct 2021 04:00:15 -0700
Subject: [PATCH] lint: Add description check for common typos.

Fixes: https://issues.guix.gnu.org/44675

* guix/lint.scm (check-description-typo): Add check for occurances of
  "This packages", "This modules", "allows to" and "permits to" in package
  descriptions.
* tests/lint.scm: Add tests for "This packages" and "allows to".
---
 guix/lint.scm  | 19 +++++++++++++++++++
 tests/lint.scm | 14 ++++++++++++++
 2 files changed, 33 insertions(+)

diff --git a/guix/lint.scm b/guix/lint.scm
index 7b02b9cec0..ac2e7b3841 100644
--- a/guix/lint.scm
+++ b/guix/lint.scm
@@ -321,6 +321,21 @@ markup is valid return a plain-text version of DESCRIPTION, otherwise #f."
                       (G_ "Texinfo markup in description is invalid")
                       #:field 'description))))
 
+  (define (check-description-typo description typo-corrections)
+    "Check that DESCRIPTION does not contain typo, with optional correction"
+    (append-map
+     (match-lambda
+      ((typo . correction)
+       (if (string-contains description typo)
+           (list
+            (make-warning package
+                          (G_
+                           (format #false
+                                   "description contains typo '~a'~@[, should be '~a'~]"
+                                   typo correction))))
+           '())))
+     typo-corrections))
+
   (define (check-trademarks description)
     "Check that DESCRIPTION does not contain '™' or '®' characters.  See
 http://www.gnu.org/prep/standards/html_node/Trademarks.html."
@@ -401,6 +416,10 @@ by two spaces; possible infraction~p at ~{~a~^, ~}")
          (check-not-empty description)
          (check-quotes description)
          (check-trademarks description)
+         (check-description-typo description '(("This packages" . "This package")
+                                               ("This modules" . "This module")
+                                               ("allows to" . #f)
+                                               ("permits to" . #f)))
          ;; Use raw description for this because Texinfo rendering
          ;; automatically fixes end of sentence space.
          (check-end-of-sentence-space description)
diff --git a/tests/lint.scm b/tests/lint.scm
index 699a750eb9..6a7eed02e0 100644
--- a/tests/lint.scm
+++ b/tests/lint.scm
@@ -177,6 +177,20 @@
                               (description "Whitespace. "))))
      (check-description-style pkg))))
 
+(test-equal "description: pluralized 'This package'"
+  "description contains typo 'This packages', should be 'This package'"
+  (single-lint-warning-message
+   (let ((pkg (dummy-package "x"
+                             (description "This packages is a typo."))))
+     (check-description-style pkg))))
+
+(test-equal "description: grammar 'allows to'"
+  "description contains typo 'allows to'"
+  (single-lint-warning-message
+   (let ((pkg (dummy-package "x"
+                             (description "This package allows to do stuff."))))
+     (check-description-style pkg))))
+
 (test-equal "synopsis: not a string"
   "invalid synopsis: #f"
   (single-lint-warning-message
-- 
2.30.2

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