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x/pkgsite/cmd/pkgsite: search not working in -cache mode #73877

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@katiehockman

Description

@katiehockman

Go version

go version go1.24.0 darwin/arm64

Output of go env in your module/workspace:

AR='ar'
CC='clang'
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_ENABLED='1'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
CXX='clang++'
GCCGO='gccgo'
GO111MODULE=''
GOARCH='arm64'
GOARM64='v8.0'
GOAUTH='netrc'
GOBIN=''
GOCACHE='/Users/kmh/Library/Caches/go-build'
GOCACHEPROG=''
GODEBUG=''
GOENV='/Users/kmh/Library/Application Support/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFIPS140='off'
GOFLAGS=''
GOGCCFLAGS='-fPIC -arch arm64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -ffile-prefix-map=/var/folders/vf/f7sq853n33lbw99s6ltplw_00000gp/T/go-build1093759142=/tmp/go-build -gno-record-gcc-switches -fno-common'
GOHOSTARCH='arm64'
GOHOSTOS='darwin'
GOINSECURE=''
GOMOD='/dev/null'
GOMODCACHE='/Users/kmh/go/pkg/mod'
GONOPROXY='github.com/kouzoh,github.com/kouzoh-mercoin'
GONOSUMDB='github.com/kouzoh,github.com/kouzoh-mercoin'
GOOS='darwin'
GOPATH='/Users/kmh/go'
GOPRIVATE='github.com/kouzoh,github.com/kouzoh-mercoin'
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/usr/local/go'
GOSUMDB='sum.golang.org'
GOTELEMETRY='local'
GOTELEMETRYDIR='/Users/kmh/Library/Application Support/go/telemetry'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/darwin_arm64'
GOVCS=''
GOVERSION='go1.24.0'
GOWORK=''

What did you do?

I have a Dockerfile that looks like this:

FROM golang:1.24-alpine

ENV GOPRIVATE=github.com/<my-org>
ENV GOMODCACHE=/go/pkg/mod

# Set working directory inside the container
WORKDIR /app

# Copy host files to the container
COPY . /app

# Install tools
RUN apk add --no-cache git
RUN go install golang.org/x/pkgsite/cmd/pkgsite@latest

# Download modules to the Go module cache
RUN go mod download github.com/<my-org>/<my-private-repo>@v0.67.2

# Expose the port that pkgsite will use
EXPOSE 8080

# Run pkgsite in cache mode
CMD ["pkgsite", "-http", "0.0.0.0:8080", "-cache"]

What did you see happen?

When running binary, it can load the homepage and I can see that the module did in fact get downloaded if I manually type it into the URL. However, the search doesn't work (nothing appears) and when clicking around I sometimes see errors like this:

2025/05/27 08:04:34 Error: goTagForVersion(""): TagForVersion(""): invalid argument: requested version is not a valid semantic version: "" 

What did you expect to see?

The search should work similar to pkg.go.dev today when running in "cache" mode.

Does there need to be another binary within golang.org/x/pkgsite/cmd in order for this to work, or is just the pkgsite binary with the -cache flag sufficient?

Thanks so much ❤

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    BugReportIssues describing a possible bug in the Go implementation.NeedsInvestigationSomeone must examine and confirm this is a valid issue and not a duplicate of an existing one.

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