Do not overwrite go.mod on make if it exists.

[ro-tex]

What did you implement

Ensures that running make does not overwrite go.mod if it already exists.

Closes #7244

How can we verify it

This is my serverless.yml:

service: golambda
app: go-lambda

frameworkVersion: '>=1.28.0 <2.0.0'

provider:
  name: aws
  runtime: go1.x
  region: eu-west-1

package:
  exclude:
    - ./**
  include:
    - ./bin/**

functions:
  hello:
    handler: bin/hello
    events:
      - http:
          path: hello
          method: get
  docs:
    handler: bin/docs
    environment:
      JWT_SECRET: ${env:JWT_SECRET}
    events:
      - http:
          path: v0/docs
          method: get
      - http:
          path: v0/docs
          method: post
      - http:
          path: v0/docs/{id}
          method: any

plugins:
  - serverless-dotenv-plugin

0. You can run this without any actual go code if you delete all function definitions - this will not change the relevant execution.
1. Run make in order to generate your go.mod file.
2. Edit go.mod - add a dependency, comment, etc.
3. Run make again in order to rebuild your binaries.
4. Verify that your changes to go.mod are still present.

A project using this fix: https://gitlab.com/ro-tex/golambda

Todos

Useful Scripts

• npm run test:ci --> Run all validation checks on proposed changes
• npm run lint:updated --> Lint all the updated files
• npm run lint:fix --> Automatically fix lint problems (if possible)
• npm run prettier-check:updated --> Check if updated files adhere to Prettier config
• npm run prettify:updated --> Prettify all the updated files

• [ x] Write and run all tests
• Write documentation
• [ x] Enable "Allow edits from maintainers" for this PR
• [ x] Update the messages below

Is this ready for review?: YES
Is it a breaking change?: NO

[codecov-io]

Codecov Report

Merging #7245 into master will decrease coverage by 0.33%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #7245      +/-   ##
==========================================
- Coverage   88.48%   88.14%   -0.34%     
==========================================
  Files         229      236       +7     
  Lines        8418     8641     +223     
==========================================
+ Hits         7449     7617     +168     
- Misses        969     1024      +55

Impacted Files	Coverage Δ
...ckage/compile/events/apiGateway/lib/permissions.js	87.5% <0%> (-5.36%)	⬇️
lib/plugins/package/lib/packageService.js	86.06% <0%> (-1.44%)	⬇️
lib/utils/config/index.js	73.07% <0%> (-1.44%)	⬇️
lib/plugins/aws/lib/naming.js	97.81% <0%> (-1.41%)	⬇️
lib/plugins/package/lib/zipService.js	95.49% <0%> (-0.84%)	⬇️
lib/plugins/plugin/lib/utils.js	97.36% <0%> (-0.68%)	⬇️
lib/classes/CLI.js	95.18% <0%> (-0.55%)	⬇️
lib/classes/Variables.js	99.72% <0%> (-0.28%)	⬇️
lib/plugins/aws/customResources/index.js	98.59% <0%> (-0.08%)	⬇️
...kage/compile/events/apiGateway/lib/method/index.js	100% <0%> (ø)	⬆️
... and 37 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update f1d2d00...583febe. Read the comment docs.

[medikoo]

Thank you @ro-tex ! Looks good to me