support subdirectory config for go-get since go 1.25

[a1012112796]

ref: golang/go@835e36f

close #35135

example view:

---

---

go get test result:

# get https://private.zhao1012112796.top/?go-get=1
# get https://private.zhao1012112796.top/testg?go-get=1
# get https://private.zhao1012112796.top/testg/test_repo?go-get=1
# get https://private.zhao1012112796.top/testg/test_repo?go-get=1: 200 OK (0.027s)
# get https://private.zhao1012112796.top/?go-get=1: 200 OK (0.029s)
get "private.zhao1012112796.top/testg/test_repo": found meta tag vcs.metaImport{Prefix:"private.zhao1012112796.top/testg/test_repo", VCS:"git", RepoRoot:"https://private.zhao1012112796.top/testg/test_repo.git", SubDir:"haha"} at //private.zhao1012112796.top/testg/test_repo?go-get=1
mkdir -p C:\Users\zzc\go\pkg\mod\cache\vcs # git3 https://private.zhao1012112796.top/testg/test_repo.git
# lock C:\Users\zzc\go\pkg\mod\cache\vcs\77054afae63cbb57d438e03e37c62470cbdab339bba361937e2b4fdc7de818a3.lock
# C:\Users\zzc\go\pkg\mod\cache\vcs\77054afae63cbb57d438e03e37c62470cbdab339bba361937e2b4fdc7de818a3 for git3 https://private.zhao1012112796.top/testg/test_repo.git
cd C:\Users\zzc\go\pkg\mod\cache\vcs\77054afae63cbb57d438e03e37c62470cbdab339bba361937e2b4fdc7de818a3; git config extensions.objectformat
# get https://private.zhao1012112796.top/testg?go-get=1: 200 OK (0.030s)
0.016s # cd C:\Users\zzc\go\pkg\mod\cache\vcs\77054afae63cbb57d438e03e37c62470cbdab339bba361937e2b4fdc7de818a3; git config extensions.objectformat
cd C:\Users\zzc\go\pkg\mod\cache\vcs\77054afae63cbb57d438e03e37c62470cbdab339bba361937e2b4fdc7de818a3; git ls-remote -q origin
0.060s # cd C:\Users\zzc\go\pkg\mod\cache\vcs\77054afae63cbb57d438e03e37c62470cbdab339bba361937e2b4fdc7de818a3; git ls-remote -q origin
cd C:\Users\zzc\go\pkg\mod\cache\vcs\77054afae63cbb57d438e03e37c62470cbdab339bba361937e2b4fdc7de818a3; git -c log.showsignature=false log --no-decorate -n1 '--format=format:%H %ct %D' 140fbb298455c311df6f8242316f406308fa3ffe --
0.017s # cd C:\Users\zzc\go\pkg\mod\cache\vcs\77054afae63cbb57d438e03e37c62470cbdab339bba361937e2b4fdc7de818a3; git -c log.showsignature=false log --no-decorate -n1 '--format=format:%H %ct %D' 140fbb298455c311df6f8242316f406308fa3ffe --
cd C:\Users\zzc\go\pkg\mod\cache\vcs\77054afae63cbb57d438e03e37c62470cbdab339bba361937e2b4fdc7de818a3; git for-each-ref --format %(refname) refs/tags --merged 140fbb298455c311df6f8242316f406308fa3ffe
0.016s # cd C:\Users\zzc\go\pkg\mod\cache\vcs\77054afae63cbb57d438e03e37c62470cbdab339bba361937e2b4fdc7de818a3; git for-each-ref --format %(refname) refs/tags --merged 140fbb298455c311df6f8242316f406308fa3ffe
cd C:\Users\zzc\go\pkg\mod\cache\vcs\77054afae63cbb57d438e03e37c62470cbdab339bba361937e2b4fdc7de818a3; git -c log.showsignature=false log --no-decorate -n1 '--format=format:%H %ct %D' 140fbb298455 --
0.015s # cd C:\Users\zzc\go\pkg\mod\cache\vcs\77054afae63cbb57d438e03e37c62470cbdab339bba361937e2b4fdc7de818a3; git -c log.showsignature=false log --no-decorate -n1 '--format=format:%H %ct %D' 140fbb298455 --
cd C:\Users\zzc\go\pkg\mod\cache\vcs\77054afae63cbb57d438e03e37c62470cbdab339bba361937e2b4fdc7de818a3; git cat-file blob 140fbb298455c311df6f8242316f406308fa3ffe:haha/go.mod
0.016s # cd C:\Users\zzc\go\pkg\mod\cache\vcs\77054afae63cbb57d438e03e37c62470cbdab339bba361937e2b4fdc7de818a3; git cat-file blob 140fbb298455c311df6f8242316f406308fa3ffe:haha/go.mod

[techknowlogick]

I'm unsure if the package code should be involved, as the meta import tag also exists for regular repositories.

[a1012112796]

I'm unsure if the package code should be involved, as the meta import tag also exists for regular repositories.

Or maybe add maybe add a special unit named as misc to sore these special repo level configs? in my view store config in units is a better way than others since #22500 was closed.