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Update build script to use GOFLAGS and CGO_LDFLAGS #460

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Update build script to use GOFLAGS and CGO_LDFLAGS #460

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8c34f54
Update build script to use GOFLAGS and CGO_LDFLAGS
maximbaz Mar 15, 2020
a29b6f5
Allow to override default values from outside, if necessary
maximbaz Mar 15, 2020
f195449
Fix when LDFLAGS is unbound
maximbaz Mar 15, 2020
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26 changes: 5 additions & 21 deletions build.bash
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Original file line number Diff line number Diff line change
Expand Up @@ -67,31 +67,15 @@ if [[ -n ${SOURCE_DATE_EPOCH:-} ]] ; then
BUILDDATE=$(date --utc --date="@${SOURCE_DATE_EPOCH}" +%Y-%m-%d)
fi

# For reproducible builds, we get rid of $HOME references in the binary
# using "-trimpath".
# Note: we have to set both -gcflags and -asmflags because otherwise
# "$HOME/go/src/golang.org/x/sys/unix/asm_linux_amd64.s" stays in the binary.
GV=$(go version)
if [[ $GV == *"1.7"* ]] || [[ $GV == *"1.8"* ]] || [[ $GV == *"1.9"* ]] ; then
TRIM="-trimpath=${GOPATH1}/src"
else
# Go 1.10 changed the syntax. You now have to prefix "all=" to affect
# all compiled packages.
TRIM="all=-trimpath=${GOPATH1}/src"
fi

export GOFLAGS="${GOFLAGS:--buildmode=pie -trimpath}"
export CGO_LDFLAGS="${CGO_LDFLAGS:-${LDFLAGS:-}}"
GO_LDFLAGS="-X main.GitVersion=$GITVERSION -X main.GitVersionFuse=$GITVERSIONFUSE -X main.BuildDate=$BUILDDATE"

# If LDFLAGS is set, add it as "-extldflags".
if [[ -n ${LDFLAGS:-} ]] ; then
GO_LDFLAGS="$GO_LDFLAGS \"-extldflags=$LDFLAGS\""
fi

# Actual "go build" call for gocryptfs
go build "-ldflags=$GO_LDFLAGS" "-gcflags=$TRIM" "-asmflags=$TRIM" "$@"
go build "-ldflags=$GO_LDFLAGS" "$@"
# Additional binaries
(cd gocryptfs-xray; go build "-ldflags=$GO_LDFLAGS" "-gcflags=$TRIM" "-asmflags=$TRIM" "$@")
(cd contrib/statfs; go build "-ldflags=$GO_LDFLAGS" "-gcflags=$TRIM" "-asmflags=$TRIM" "$@")
(cd gocryptfs-xray; go build "-ldflags=$GO_LDFLAGS" "$@")
(cd contrib/statfs; go build "-ldflags=$GO_LDFLAGS" "$@")

./gocryptfs -version

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