libgocryptfs/build.bash
Jakob Unterwurzacher e4fdb42496 build.bash: implement "you need Go 1.5" lockout in pure Go
As noticed by @riking, the logic in the bash script will break
when Go 1 version numbers reach double-digits.

Instead, use a build tag "!go1.5" to cause a syntax error:

  $ /opt/go1.4.3/bin/go build
  can't load package: package github.com/rfjakob/gocryptfs:
  go1.4.go:5:1: expected 'package', found 'STRING' "You need Go 1.5 or higher to compile gocryptfs!"

Fixes https://github.com/rfjakob/gocryptfs/issues/133
2017-08-02 23:41:20 +02:00

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#!/bin/bash
set -eu
cd "$(dirname "$0")"
MYDIR=$PWD
# GOPATH may contain multiple paths separated by ":"
GOPATH1=$(go env GOPATH | cut -f1 -d:)
# gocryptfs version according to git
GITVERSION=$(git describe --tags --dirty)
# go-fuse version according to git
# Note: git in CentOS 7 does not have "git -C" yet, so we use plain "cd".
FAIL=0
cd $GOPATH1/src/github.com/hanwen/go-fuse
OUT=$(git describe --tags --dirty 2>&1) || FAIL=1
if [[ $FAIL -ne 0 ]]; then
echo "$PWD: git describe: $OUT"
echo "Hint: are you missing git tags?"
exit 1
fi
GITVERSIONFUSE=$OUT
cd "$MYDIR"
# Build Unix timestamp, something like 1467554204.
BUILDTIME=$(date +%s)
# Make sure we have the go binary
go version > /dev/null
LDFLAGS="-X main.GitVersion=$GITVERSION -X main.GitVersionFuse=$GITVERSIONFUSE -X main.BuildTime=$BUILDTIME"
go build "-ldflags=$LDFLAGS" $@
(cd gocryptfs-xray; go build $@)
./gocryptfs -version
mkdir -p $GOPATH1/bin
cp -af gocryptfs $GOPATH1/bin