Ok, I just tested this. I only see this behaviour with go 1.18. I tried
using go mod tidy with go1.17 and it worked as expected.
On Friday, 1 April 2022 at 14:15:14 UTC+2 vaastav...@gmail.com wrote:
> I see this behaviour even in the presence of a main.go file in the same
> directory. This is why I am baffled as to why I am seeing this warning even
> if the source code is present.
> It was working fine until I upgraded from go1.17 to go1.18
>
> On Friday, 1 April 2022 at 11:36:04 UTC+2 Brian Candler wrote:
>
>> Interesting. If I put that go.mod file in an empty directory, then I see
>> the warning:
>>
>> $ go mod tidy
>>
>> go: warning: "all" matched no packages
>> $ go mod tidy
>>
>> go: warning: "all" matched no packages
>> > But when I run `go mod tidy`, it simply prints out the aforementioned
>> warning and the new go.mod file looks like this
>>
>> I see the same behaviour if I create a main.go file. Then the warning
>> vanishes and the go.mod file is tidied:
>>
>> $ mv main.go.x main.go
>> $ cat main.go
>> package main
>>
>> func main() {
>> }
>> $ go mod tidy
>> $ cat go.mod
>> module module_name_obfuscated
>>
>> go 1.17
>> $
>>
>> This of course is expected behaviour: it's the job of go mod tidy to
>> update the go.mod file so that it matches the source code in the module.
>> See "go help mod tidy":
>>
>>
>>
>>
>> *"Tidy makes sure go.mod matches the source code in the module.It adds
>> any missing modules necessary to build the current module'spackages and
>> dependencies, and it removes unused modules thatdon't provide any relevant
>> packages."*
>>
>> So I presume the warning you see is only when go mod tidy can't find any
>> source code in the current directory.
>>
>> On Thursday, 31 March 2022 at 20:18:52 UTC+1 vaastav...@gmail.com wrote:
>>
>>> Here are the contents of the go.mod file
>>>
>>> ```
>>> module module_name_obfuscated
>>>
>>> go 1.18
>>>
>>> require (
>>> github.com/bradfitz/gomemcache v0.0.0-20190913173617-a41fca850d0b
>>> github.com/go-redis/redis/v8 v8.11.4
>>> github.com/go-sql-driver/mysql v1.6.0
>>> github.com/otiai10/copy v1.7.0
>>> github.com/rabbitmq/amqp091-go v1.3.0
>>> github.com/tracingplane/tracingplane-go
>>> v0.0.0-20171025152126-8c4e6f79b148
>>> gitlab.mpi-sws.org/cld/tracing/tracing-framework-go
>>> v0.0.0-20211206181151-6edc754a9f2a
>>> go.mongodb.org/mongo-driver v1.7.4
>>> go.opentelemetry.io/otel/exporters/jaeger v1.2.0
>>> go.opentelemetry.io/otel/exporters/zipkin v1.6.0
>>> go.opentelemetry.io/otel/sdk v1.6.0
>>> go.opentelemetry.io/otel/trace v1.6.0
>>> golang.org/x/mod v0.5.1
>>> )
>>>
>>> require (
>>> github.com/cespare/xxhash/v2 v2.1.2 // indirect
>>> github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f
>>> // indirect
>>> github.com/go-logr/logr v1.2.3 // indirect
>>> github.com/go-logr/stdr v1.2.2 // indirect
>>> github.com/go-stack/stack v1.8.0 // indirect
>>> github.com/golang/protobuf v1.5.2 // indirect
>>> github.com/golang/snappy v0.0.4 // indirect
>>> github.com/klauspost/compress v1.13.6 // indirect
>>> github.com/openzipkin/zipkin-go v0.4.0 // indirect
>>> github.com/pkg/errors v0.9.1 // indirect
>>> github.com/xdg-go/pbkdf2 v1.0.0 // indirect
>>> github.com/xdg-go/scram v1.0.2 // indirect
>>> github.com/xdg-go/stringprep v1.0.2 // indirect
>>> github.com/youmark/pkcs8 v0.0.0-20181117223130-1be2e3e5546d //
>>> indirect
>>> go.opentelemetry.io/otel v1.6.0 // indirect
>>> golang.org/x/crypto v0.0.0-20210920023735-84f357641f63 // indirect
>>> golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9 // indirect
>>> golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1 // indirect
>>> golang.org/x/text v0.3.7 // indirect
>>> golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
>>> google.golang.org/protobuf v1.27.1 // indirect
>>> )
>>> ```
>>>
>>> But when I run `go mod tidy`, it simply prints out the aforementioned
>>> warning and the new go.mod file looks like this:
>>>
>>> ```
>>> module module_name_obfuscated
>>>
>>> go 1.18
>>> ```
>>> On Thursday, 31 March 2022 at 18:30:13 UTC+2 Brian Candler wrote:
>>>
>>>> Can you show the contents of the go.mod file in the directory where you
>>>> run "go mod tidy"?
>>>>
>>>> > I get this error when I run `go list all` as well.
>>>>
>>>> Try "go list" rather than "go list all" (because in that context, "all"
>>>> is interpreted as the name of a package)
>>>>
>>>> On Thursday, 31 March 2022 at 16:12:24 UTC+1 vaastav...@gmail.com
>>>> wrote:
>>>>
>>>>> Hi all,
>>>>> I am encountering this problem where when I run `go mod tidy`, it
>>>>> simply returns `go: warning: "all" matched no packages`. I get this error
>>>>> when I run `go list all` as well.
>>>>> I was hoping someone could help me as to why this is happening since I
>>>>> haven't been able to find an explanation for this.
>>>>>
>>>>> Kind Regards
>>>>> Vaastav
>>>>>
>>>>
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