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cmd/go/internal/generate: error if failed to find a package

Add check for package loader to print error and fail `go generate` command,
if package can not be found.

Fixes #60079

Change-Id: Ib9e730c2b69df6e5ac307c7bdfea0ee993ab6ed8
GitHub-Last-Rev: d93332425a
GitHub-Pull-Request: golang/go#60178
Reviewed-on: https://go-review.googlesource.com/c/go/+/494836
Auto-Submit: Bryan Mills <bcmills@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
This commit is contained in:
Kirill Che 2023-09-08 07:45:12 +00:00 committed by Gopher Robot
parent 267323ef2d
commit ee788dbae0
2 changed files with 14 additions and 1 deletions

View File

@ -210,6 +210,13 @@ func runGenerate(ctx context.Context, cmd *base.Command, args []string) {
continue
}
if pkg.Error != nil && len(pkg.InternalAllGoFiles()) == 0 {
// A directory only contains a Go package if it has at least
// one .go source file, so the fact that there are no files
// implies that the package couldn't be found.
base.Errorf("%v", pkg.Error)
}
for _, file := range pkg.InternalGoFiles() {
if !generate(file) {
break
@ -222,6 +229,7 @@ func runGenerate(ctx context.Context, cmd *base.Command, args []string) {
}
}
}
base.ExitIfErrors()
}
// generate runs the generation directives for a single file.

View File

@ -6,8 +6,13 @@ go install echo.go
env PATH=$GOBIN${:}$PATH
# Test go generate for directory with no go files
go generate ./nogo
! go generate ./nogo
! stdout 'Fail'
stderr 'no Go files'
# Test go generate for module which doesn't exist should fail
! go generate foo.bar/nothing
stderr 'no required module provides package foo.bar/nothing'
# Test go generate for package where all .go files are excluded by build
# constraints