Error occurred when executing gf gen service

[windvalley]

1. What version of Go and system type/arch are you using?

go version go1.20.4 darwin/amd64

2. What version of GoFrame are you using?

goframe: v2.4.4

gf cli: v2.4.4

3. Can this issue be re-produced with the latest release?

yes

4. What did you do?

$ gf gen service

报错如下:

not dirty, ignore generating service go file: internal/service/demo.go
not dirty, ignore generating service go file: internal/service/middleware.go
logicPackageName: logic, logicFilePath: internal/logic/logic.go, importPath: gf2-demo/internal/logic, importStr: _ "gf2-demo/internal/logic", mailFilePath: , mainFileContent:
exception recovered: runtime error: index out of range [1] with length 0
1. exception recovered: runtime error: index out of range [1] with length 0
   1).  github.com/gogf/gf/v2/os/gcmd.(*Command).doRun.func1
        /Users/xg/github/gf/os/gcmd/gcmd_command_run.go:111
   2).  go.opentelemetry.io/otel/sdk/trace.(*recordingSpan).End.func1
        /Users/xg/go/pkg/mod/go.opentelemetry.io/otel/sdk@v1.7.0/trace/span.go:359
   3).  go.opentelemetry.io/otel/sdk/trace.(*recordingSpan).End
        /Users/xg/go/pkg/mod/go.opentelemetry.io/otel/sdk@v1.7.0/trace/span.go:398
   4).  github.com/gogf/gf/cmd/gf/v2/internal/cmd/genservice.CGenService.checkAndUpdateMain
        /Users/xg/github/gf/cmd/gf/internal/cmd/genservice/genservice.go:337
   5).  github.com/gogf/gf/cmd/gf/v2/internal/cmd/genservice.CGenService.Service
        /Users/xg/github/gf/cmd/gf/internal/cmd/genservice/genservice.go:310
   6).  github.com/gogf/gf/v2/os/gcmd.newCommandFromMethod.func1
        /Users/xg/github/gf/os/gcmd/gcmd_command_object.go:324
   7).  github.com/gogf/gf/v2/os/gcmd.(*Command).doRun
        /Users/xg/github/gf/os/gcmd/gcmd_command_run.go:152
   8).  github.com/gogf/gf/v2/os/gcmd.(*Command).RunWithValueError
        /Users/xg/github/gf/os/gcmd/gcmd_command_run.go:91
   9).  github.com/gogf/gf/v2/os/gcmd.(*Command).RunWithError
        /Users/xg/github/gf/os/gcmd/gcmd_command_run.go:69
   10). github.com/gogf/gf/cmd/gf/v2/gfcmd.(*Command).Run
        /Users/xg/github/gf/cmd/gf/gfcmd/gfcmd.go:62
   11). main.main
        /Users/xg/github/gf/cmd/gf/main.go:27

查看gf最新版源码发现https://github.com/gogf/gf/blob/master/cmd/gf/internal/cmd/genservice/genservice.go的checkAndUpdateMain函数, 将项目程序入口文件默认为了项目根路径下的main.go, 而我的项目的入口文件是cmd/gf2-demo-api/gf2-demo-api.go, 从而导致后续代码报错.

不知道能否考虑兼容一下入口文件在cmd/下的这种使用方式, 目前看这种应该还算比较主流.

我这边想到的最简单的兼容方法是在生成完service代码文件进入checkAndUpdateMain后, 如果发现项目跟路径下没有main.go文件, 就忽略后续处理, 提前返回即可.