workflow: allow equal and slash

[nokute78]

This patch allows = and / for commit message.
e.g.

• =
  • build: fix build failure with -DFLB_SHARED_LIB=OFF (#3042) patch
• /
  • build: fix cpack rules and validate flex/bison patch

---

Enter [N/A] in the box, if an item is not applicable to your change.

Testing
Before we can approve your change; please submit the following in a comment:

• [N/A] Example configuration file for the change
• Debug log output from testing the change

• [N/A] Attached Valgrind output that shows no leaks or memory corruption was found

Documentation

• [N/A] Documentation required for this feature

Debug output

equal case.

irb(main):001:0> str = 'build: fix build failure with -DFLB_SHARED_LIB=OFF (#3042)'
irb(main):002:0> str.match /^[a-z0-9\-_]+\:[ ]{0,1}[a-z]+[a-zA-Z0-9 \-\.\:_\#\(\)=\/]+$/
=> #<MatchData "build: fix build failure with -DFLB_SHARED_LIB=OFF (#3042)">

slash case.

irb(main):001:0> str = 'build: fix cpack rules and validate flex/bison'
irb(main):002:0> str.match /^[a-z0-9\-_]+\:[ ]{0,1}[a-z]+[a-zA-Z0-9 \-\.\:_\#\(\)=\/]+$/
=> #<MatchData "build: fix cpack rules and validate flex/bison">

---

Fluent Bit is licensed under Apache 2.0, by submitting this pull request I understand that this code will be released under the terms of that license.

[fujimotos]

Hmm. The commit checker is evidently being too picky. This is the fourth PR
(after #3285, #3281 and #3270) that tries to amend the issue, but the bot
apparently needs a few more tweaks. Using this Python script:

import re
import sys 

pat = re.compile(r'^[a-z0-9\-_]+\:[ ]{0,1}[a-z]+[a-zA-Z0-9 \-\.\:_\#\(\)=\/]+$')
bad = 0 

for n, line in enumerate(sys.stdin):
    line = line.strip()
    if not pat.match(line):
        print("bad commit:", line)
        bad += 1

print("%i/%i rejected (%i%%)" % (bad, n, bad / n * 100))

I can confirm that the checking bot rejects ~1/4 of our historical commits:

$ git log --oneline  --no-merges --decorate=no | cut -d " " -f 2- | python3 a.py
...
bad commit: Core: initialization and 32 bit fixes.
1418/5933 rejected (23%)

Overall, the robot seems to be rejecting tons of valid commits, and actively
making contributors feel miserable.

[nokute78]

@fujimotos nice script!

I modified script and this diff reports 92/6029 rejected (1%)

--- /home/taka/a.py	2021-03-31 11:28:42.256176691 +0900
+++ /home/taka/b.py	2021-03-31 11:28:24.972003619 +0900
@@ -1,7 +1,7 @@
 import re
 import sys 
 
-pat = re.compile(r'^[a-z0-9\-_]+\:[ ]{0,1}[a-z]+[a-zA-Z0-9 \-\.\:_\#\(\)=\/]+$')
+pat = re.compile(r'^[a-z0-9A-Z\-_\s\,\.\/]+\:[ ]{0,1}[a-zA-Z]+[a-zA-Z0-9 \-\.\:_\#\(\)=\/\'\"\,><\+\[\]\!\*\\]+$')
 bad = 0 
 
 for n, line in enumerate(sys.stdin):

[fujimotos]

I modified script and this diff reports 92/6029 rejected (1%)

@nokute78 Great. Can you submit that pattern as a PR with the
script report attached?

Looking over the new pattern, I'm basically fine with your proposal.

[nokute78]

I added commit to respect #3306 (comment).

By the way, It is against this document
We may need to fix CONTRIBUTING.md.

e.g. Your principal commit message (one line subject) must be prefixed with the core section name in lowercase plus a colon
Refer to this, SSL/TLS: add mbedtls encryption library is not allowed.