Restore contract size checks

[ascjones]

Previously the ink-waterfall step reported changes in contract sizes for a PR compared to master. This was useful for preventing regressions and also for PRs which are designed to improve the contract sizes.

This PR restores this check, this time integrated as part of the ink CI itself.

I have split the check into separate script files that can be run locally (apart from contract_sizes_submit.sh) for easy testing and to make it easy to migrate to GHA later.

[codecov-commenter]

Codecov Report

Merging #1916 (233cf2d) into master (062c02d) will decrease coverage by 0.02%.
Report is 1 commits behind head on master.
The diff coverage is n/a.

❗ Current head 233cf2d differs from pull request most recent head fcfd909. Consider uploading reports for the commit fcfd909 to get more accurate results

@@            Coverage Diff             @@
##           master    #1916      +/-   ##
==========================================
- Coverage   52.93%   52.92%   -0.02%     
==========================================
  Files         219      219              
  Lines        6780     6780              
==========================================
- Hits         3589     3588       -1     
- Misses       3191     3192       +1     

see 1 file with indirect coverage changes

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[paritytech-cicd-pr]

🦑 📈 ink! Example Contracts ‒ Changes Report 📉 🦑

⚠️ The ink! master is ahead of your branch, this might skew the comparison data below. ⚠️
These are the results when building the integration-tests/* contracts from this branch with cargo-contract 4.0.0-alpha-acc02b1 and comparing them to ink! master:

Contract	Upstream Size (kB)	PR Size (kB)	Diff (kB)	Diff (%)	Change
basic-contract-caller	2.998	2.998	0	0	➖
basic-contract-caller/other-contract	1.331	1.331	0	0	➖
call-builder-return-value	8.734	8.734	0	0	➖
call-runtime	1.77	1.77	0	0	➖
conditional-compilation	1.204	1.204	0	0	➖
contract-terminate	1.087	1.087	0	0	➖
contract-transfer	1.446	1.446	0	0	➖
custom-allocator	7.39	7.39	0	0	➖
dns	7.313	7.313	0	0	➖
e2e-call-runtime	1.057	1.057	0	0	➖
e2e-runtime-only-backend	1.633	1.633	0	0	➖
erc1155	14.113	14.107	-0.006	-0.042514	📉
erc20	6.572	6.572	0	0	➖
erc721	9.547	9.547	0	0	➖
events	4.816	4.816	0	0	➖
flipper	1.387	1.387	0	0	➖
incrementer	1.217	1.217	0	0	➖
lang-err-integration-tests/call-builder-delegate	2.321	2.321	0	0	➖
lang-err-integration-tests/call-builder	4.875	4.875	0	0	➖
lang-err-integration-tests/constructors-return-value	1.772	1.772	0	0	➖
lang-err-integration-tests/contract-ref	4.363	4.363	0	0	➖
lang-err-integration-tests/integration-flipper	1.565	1.565	0	0	➖
mapping-integration-tests	2.975	2.975	0	0	➖
mother	9.499	9.499	0	0	➖
multi-contract-caller	5.977	5.977	0	0	➖
multi-contract-caller/accumulator	1.09	1.09	0	0	➖
multi-contract-caller/adder	1.672	1.672	0	0	➖
multi-contract-caller/subber	1.693	1.693	0	0	➖
multisig	21.406	21.406	0	0	➖
payment-channel	5.544	5.544	0	0	➖
sr25519-verification	0.865	0.865	0	0	➖
static-buffer	1.411	1.411	0	0	➖
trait-dyn-cross-contract-calls	2.491	2.491	0	0	➖
trait-dyn-cross-contract-calls/contracts/incrementer	1.3	1.3	0	0	➖
trait-erc20	6.956	6.956	0	0	➖
trait-flipper	1.204	1.204	0	0	➖
trait-incrementer	1.365	1.365	0	0	➖
upgradeable-contracts/delegator	2.902	2.902	0	0	➖
upgradeable-contracts/delegator/delegatee	1.368	1.368	0	0	➖
upgradeable-contracts/set-code-hash	1.46	1.46	0	0	➖
upgradeable-contracts/set-code-hash/updated-incrementer	1.439	1.439	0	0	➖
wildcard-selector	2.619	2.619	0	0	➖

Link to the run | Last update: Tue Oct 17 11:53:02 CEST 2023

[ascjones]

Note this whole script to generate a markdown table copied from https://josh.fail/2022/pure-bash-markdown-table-generator/

[cmichi]

🌈