Give user a link to create PR after push

[JulienTant]

New Feature

This PR offers a link to create new pull request when we push to a branch which is not the default branch.
If a PR already exists, it just give the link to the existing PR.

Output of a push when no active PR exists:

[branch2/test be40717] test
 1 file changed, 1 deletion(-)
Counting objects: 3, done.
Writing objects: 100% (3/3), 255 bytes | 255.00 KiB/s, done.
Total 3 (delta 0), reused 0 (delta 0)
remote:
remote: Create a new pull request for 'branch2/test':
remote:   http://localhost:3000/test1/test/compare/master...branch2%2Ftest
remote:
To http://localhost:3000/test1/test.git
   0c5683f..be40717  branch2/test -> branch2/test

Output of a push when an active PR exists:

[branch2/test 453d638] test
 1 file changed, 1 insertion(+)
Counting objects: 3, done.
Writing objects: 100% (3/3), 255 bytes | 255.00 KiB/s, done.
Total 3 (delta 0), reused 0 (delta 0)
remote:
remote: Visit the existing pull request:
remote:   http://localhost:3000/test1/test/pulls/6
remote:
To http://localhost:3000/test1/test.git
   be40717..453d638  branch2/test -> branch2/test

[JulienTant]

Now i wanna talk about some technical decision i took :

1. In case of errors, I log but does nothing because I don't want this feature to block anything.
2. I created 2 internal endpoints, but I though about an option where i could make only one that gave me everything I needed : the PR default branch + the PR if it exists.
3. About the fork limitation, If you guys think it's better to create the PR in the "base" repository, then maybe it's better to consider to use what i described above to have the url generation out of the cmd/hook.go file

[codecov-io]

Codecov Report

Merging #4716 into master will decrease coverage by 0.02%.
The diff coverage is 28.33%.

@@            Coverage Diff             @@
##           master    #4716      +/-   ##
==========================================
- Coverage    37.4%   37.38%   -0.03%     
==========================================
  Files         307      308       +1     
  Lines       45545    45605      +60     
==========================================
+ Hits        17038    17050      +12     
- Misses      26052    26097      +45     
- Partials     2455     2458       +3

Impacted Files	Coverage Δ
routers/private/internal.go	62.5% <100%> (+3.4%)	⬆️
routers/private/repository.go	25.86% <25.86%> (ø)
models/repo_indexer.go	50.84% <0%> (-1.28%)	⬇️
models/repo_list.go	62.2% <0%> (-1.17%)	⬇️

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[lunny]

gitea_no_gcc should be removed.
I think the PR should be in base repository.

[lunny]

And you also should check if user has permission to visit and create pull request.

[lafriks]

I also agree that PR should be for base repository as that is default behaviour from UI

[JulienTant]

Ok I will first add the fork thing.

And you also should check if user has permission to visit and create pull request.

I'm not sure how to do that. I took a look at the "web" router to access to PR creation page and I found this :

gitea/routers/repo/issue.go

Lines 79 to 91 in 7781e8c

	// MustAllowPulls check if repository enable pull requests
	func MustAllowPulls(ctx *context.Context) {
	if !ctx.Repo.Repository.AllowsPulls() {
	ctx.NotFound("MustAllowPulls", nil)
	return
	}
	// User can send pull request if owns a forked repository.
	if ctx.IsSigned && ctx.User.HasForkedRepo(ctx.Repo.Repository.ID) {
	ctx.Repo.PullRequest.Allowed = true
	ctx.Repo.PullRequest.HeadInfo = ctx.User.Name + ":" + ctx.Repo.BranchName
	}
	}

Is that what I must us implement ?

[JulienTant]

• Forks are now created for the base repository.
• Ensure that the "target" repository has enabled PR.

[lunny]

comment head

[JulienTant]

I changed my PHPStorm template for the project, thanks.

[JulienTant]

Hi guys, any news on this ?

[lafriks]

@JulienTant it looks good, nice work but I want to test it first before I give my approval

[JulienTant]

Of course. I tried to lot of cases but if you find anything i'll be happy to fix/change things.

[JulienTant]

up?

[lafriks]

We are feature freeze currently so need to wait until v1.6.0-rc1 is released