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Updated require-jira-issue.sh #295

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@sandeeprayala sandeeprayala commented Feb 11, 2020

'-' is a special character in regex when you use inside character class [], it stands for range when it appears anywhere else except

As the first character in class or after [^]
At the end of character class
so your regex should be -- 'JIRA-[0-9]+'

- is a special character in regex when you use inside character class [], it stands for range when it appears anywhere else except

As the first character in class or after [^]
At the end of character class
so your regex should be -- 'JIRA-[0-9]+'
@@ -15,7 +15,7 @@
set -e

zero_commit='0000000000000000000000000000000000000000'
msg_regex='[JIRA\-[0-9]+\]'
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@sandeeprayala: as you noticed, minus is a special character, so we escaped it to match it as a literal. Your suggested change is to remove that escaping. Have you tested your change? Are you saying that the script did not work for you before?

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Yes, I have tested and it worked for me, my suggestion is to remove the " [ ] "'.

once you remove the square brackets the regex would be as below.
msg_regex= 'JIRA-[0-9]+'

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I agree; this regex is a mess. The first [ is unescaped, which makes the rest act as a set that goes up to the closing ] after the 9.

I set up an example here with a full explanation - https://regex101.com/r/R6kCL6/1

This broken regex will incorrectly match:

  • JIRA-99]
  • 0]
  • -]

The outer brackets should be escaped or totally removed depending on the author's intent.

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