6734083356
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master: 62%

Ran 02 Nov 2023 02:44PM UTC

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Committed 02 Nov 2023 02:36PM UTC coverage: 75.734%. Remained the same

Build # 6734083356

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push

github

Committed by

web-flow

Commit Message

diff: validation for -U and -C

* The -U option accepts the number -1 but perl dies

perl diff -U -1  A B 
--- A	Sat Oct 28 11:49:12 2023
+++ B	Sat Oct 28 11:49:24 2023
@@ -3104,-1 +3104,-1 @@
Modification of non-creatable array value attempted, subscript -1 at diff line 383.

* For -U 0, output matches GNU diff on my Linux system
* OpenBSD diff command also accepts -U 0
* "-U hello" is interpreted as -U 0 but this should be an error
* Looking at the option parser, -C and -U have the same problem
* Standards document doesn't mention -U, but has wording about -C value being a positive integer[1]
* Follow OpenBSD diff and allow -U 0, but raise error for negative values (same treatment for -C)

1. https://pubs.opengroup.org/onlinepubs/009604499/utilities/diff.html

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ID	Job ID	Ran	Files	Coverage
1	6734083356.1	02 Nov 2023 02:44PM UTC	0	75.73	GitHub Action Run

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