Fix make exec-hash script

[SidestreamStrongStrawberry]

Closes #425

Context

• Running script currently returns error on mac

date: illegal option -- d
usage: date [-jnRu] [-I[date|hours|minutes|seconds]] [-f input_fmt]
            [-r filename|seconds] [-v[+|-]val[y|m|w|d|H|M|S]]
            [[[[mm]dd]HH]MM[[cc]yy][.SS] | new_date] [+output_fmt]

• Inconsistent exec-doc name
  • Executive Vote in exec doc name will make the script fail (Error: Executive vote not found) as the script was develop to work with Executive vote
• Tool for platform-independent hash generation (spell retro from 2024-08-12)

[amusingaxl]

Left a couple of suggestions.

[SidestreamColdMelon]

@SidestreamStrongStrawberry Could you please provide 4 command examples to test those 4 edge cases (as I assume you did it yourself)?

[SidestreamStrongStrawberry]

Date	script command	bash command	Hashes match	Comment
2024-03-06	make exec-hash date="2024-03-06"	cast keccak -- "$(wget 'https://raw.githubusercontent.com/makerdao/community/17c96c446ac3339c1f0b3081f6afffad26b7c508/governance/votes/Executive%20Vote%20-%20March%206,%202024.md' -q -O - 2>/dev/null)"	✅	Exec doc title: Executive Vote - March 6, 2024.md
2024-05-06	make exec-hash date="2024-05-06"	cast keccak -- "$(wget 'https://raw.githubusercontent.com/makerdao/community/be059e35221d04f91d7e2ed978175784e2f45607/governance/votes/Executive%20vote%20-%20May%2006,%202024.md' -q -O - 2>/dev/null)"	✅	Exec doc title: Executive vote - May 06, 2024.md
2024-05-30	make exec-hash date="2024-05-30"	cast keccak -- "$(wget 'https://raw.githubusercontent.com/makerdao/community/16588abd76fefe0e1276ab630033facc541f954d/governance/votes/Executive%20vote%20-%20May%2030,%202024.md' -q -O - 2>/dev/null)"	✅	Exec doc title: Executive vote - May 30, 2024.md
2023-02-08	make exec-hash date="2023-02-08"	cast keccak -- "$(wget 'https://raw.githubusercontent.com/makerdao/community/856ebe853b251537c4bfddb7daa92f9f2800260f/governance/votes/Executive%20vote%20-%20February%208,%202023.md' -q -O - 2>/dev/null)"	✅	Exec doc title: Executive vote - February 8, 2023.md

[amusingaxl]

LGTM

[amusingaxl]

Actually, it seems to not work with the latest spell:

Here's the URL for it:
https://github.com/makerdao/community/blob/master/governance/votes/templates/Executive%20vote%20-%20September%2013%2C%202024.md

[amusingaxl]

I believe you need to URL-encode the formatted date for this to work prolerly.

[SidestreamStrongStrawberry]

I believe you need to URL-encode the formatted date for this to work prolerly.

This can be improved but I don't think it affects the result.
It looks like the doc was uploaded in the wrong folder and moved it now.

The hash results matches with url: https://raw.githubusercontent.com/makerdao/community/23d01e9ea8e102d959e7b9bd1586cb4c31a8b812/governance/votes/Executive%20vote%20-%20September%2013,%202024.md

[amusingaxl]

Reapproving.