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cmd/go: go work use panics when given a file #51749

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JohnAnthony opened this issue Mar 17, 2022 · 8 comments
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cmd/go: go work use panics when given a file #51749

JohnAnthony opened this issue Mar 17, 2022 · 8 comments
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FrozenDueToAge GoCommand cmd/go NeedsFix The path to resolution is known, but the work has not been done. Suggested Issues that may be good for new contributors looking for work to do.

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@JohnAnthony
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JohnAnthony commented Mar 17, 2022 •
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What version of Go are you using (go version)?

$ go version
1.18

Does this issue reproduce with the latest release?

Yes

What operating system and processor architecture are you using (go env)?

go env Output
$ go env
GO111MODULE=""
GOARCH="amd64"
GOBIN="/home/ja/go/bin"
GOCACHE="/home/ja/.cache/go-build"
GOENV="/home/ja/.config/go/env"
GOEXE=""
GOEXPERIMENT=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/home/ja/go/pkg/mod"
GONOPROXY="*"
GONOSUMDB="*"
GOOS="linux"
GOPATH="/home/ja/go"
GOPRIVATE="*"
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/home/ja/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/home/ja/go/pkg/tool/linux_amd64"
GOVCS=""
GOVERSION="go1.18"
GCCGO="gccgo"
GOAMD64="v1"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD="/dev/null"
GOWORK=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build4125566826=/tmp/go-build -gno-record-gcc-switches"

What did you do?

$ mkdir work
$ cd work
$ go work init
$ touch iamafile
$ go work use iamafile

What did you expect to see?

A graceful error around having been provided a file instead of a folder

What did you see instead?

go: stat /home/ja/work/iamafile/go.mod: not a directory
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x28 pc=0x81d565]

goroutine 1 [running]:
cmd/go/internal/workcmd.runUse.func1({0x7ffc8a10a7ed?, 0x0?})
        /usr/local/go/src/cmd/go/internal/workcmd/use.go:97 +0x165
cmd/go/internal/workcmd.runUse({0xadc718?, 0xc000122000?}, 0xc00014c510?, {0xc00013a030, 0x1, 0x2?})
        /usr/local/go/src/cmd/go/internal/workcmd/use.go:112 +0xa8a
main.invoke(0xdb7660, {0xc00013a020, 0x2, 0x2})
        /usr/local/go/src/cmd/go/main.go:218 +0x2ee
main.main()
        /usr/local/go/src/cmd/go/main.go:175 +0x78e
@seankhliao seankhliao changed the title cmd/go: go work use has segmentation violation when given a file rather than a folder cmd/go: go work use panics when given a file Mar 17, 2022
@seankhliao seankhliao added NeedsFix The path to resolution is known, but the work has not been done. GoCommand cmd/go labels Mar 17, 2022
@seankhliao
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cc @bcmills @matloob

@mvdan mvdan added the Suggested Issues that may be good for new contributors looking for work to do. label Mar 17, 2022
@mvdan
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mvdan commented Mar 17, 2022

This seems like a good candidate for someone's first contribution, by the way. Just make sure to look at how recent bugfixes in go work were implemented, read https://go.dev/doc/contribute, and include a test case.

@JohnAnthony
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I'd be interested in working on this as a first contribution

@gopherbot
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Change https://go.dev/cl/393615 mentions this issue: cmd/go: prevent go work use panic when given a file

@bcmills
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bcmills commented Mar 17, 2022

@gopherbot, please backport to Go 1.18. (This is a user-facing panic in go work use.)

@gopherbot gopherbot mentioned this issue Mar 17, 2022
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@gopherbot
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Backport issue(s) opened: #51764 (for 1.18).

Remember to create the cherry-pick CL(s) as soon as the patch is submitted to master, according to https://go.dev/wiki/MinorReleases.

@mvdan mvdan mentioned this issue Mar 21, 2022
Closed
@notfilippo notfilippo mentioned this issue Mar 21, 2022
Closed
notfilippo added a commit to notfilippo/go that referenced this issue Mar 21, 2022
@notfilippo
cmd/go: prevent panic in go work use
5bfdc9d 
Check if paths passed as arguments are existing directories.

Fixes golang#51841 golang#51749
@gopherbot
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Change https://go.dev/cl/394154 mentions this issue: cmd/go: prevent panic in go work use

notfilippo pushed a commit to notfilippo/go that referenced this issue Mar 21, 2022
cmd/go: prevent panic in go work use
d256fca 
Check if paths passed as arguments are existing directories.

Fixes golang#51841 golang#51749
notfilippo pushed a commit to notfilippo/go that referenced this issue Mar 31, 2022
cmd/go: prevent panic in go work use
b65de24 
Check if paths passed as arguments are existing directories.

Fixes golang#51841 golang#51749
notfilippo pushed a commit to notfilippo/go that referenced this issue Apr 4, 2022
cmd/go: prevent panic in go work use
2de0bc1 
Check if paths passed as arguments are existing directories.

Fixes golang#51841
Fixes golang#51749
gopherbot pushed a commit that referenced this issue Apr 4, 2022
@odeke-em
cmd/go: prevent panic in go work use
492c85a 
Check if paths passed as arguments are existing directories.

Fixes #51841
Fixes #51749

Change-Id: Icfd148627e6f2c4651d6f923a37d413e68c67f6c
GitHub-Last-Rev: 77fffa7
GitHub-Pull-Request: #51845
Reviewed-on: https://go-review.googlesource.com/c/go/+/394154
Trust: Bryan Mills <bcmills@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Trust: Emmanuel Odeke <emmanuel@orijtech.com>
Run-TryBot: Emmanuel Odeke <emmanuel@orijtech.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
@gopherbot
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Change https://go.dev/cl/397994 mentions this issue: [release-branch.go1.18] cmd/go: prevent go work use panic when given a file

gopherbot pushed a commit that referenced this issue Apr 5, 2022
@cherrymui
[release-branch.go1.18] cmd/go: prevent go work use panic when given …
c6ba470 
…a file

The current implementation fails to identify that an argument to go work
use is a file when expecting a directory, and panics when attempting to
access it as a directory. This change checks arguments are directories
and generates an error otherwise.

Fixes #51764
Updates #51749

Change-Id: If8f69d233409e93fcf391a8774bace74c031c986
Reviewed-on: https://go-review.googlesource.com/c/go/+/393615
Reviewed-by: Bryan Mills <bcmills@google.com>
Trust: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Trust: Ian Lance Taylor <iant@golang.org>
(cherry picked from commit a84ef50)
Reviewed-on: https://go-review.googlesource.com/c/go/+/397994
Reviewed-by: Cherry Mui <cherryyz@google.com>
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cmd/go: prevent panic in go work use notfilippo/go
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@JohnAnthony @mvdan @bcmills @gopherbot @seankhliao