migrate to go-modules

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>

vendor/github.com/DataDog/zstd/.travis.yml

@@ -0,0 +1,31 @@
+dist: xenial
+language: go
+
+go:
+  - 1.10.x
+  - 1.11.x
+  - 1.12.x
+
+os:
+  - linux
+  - osx
+
+matrix:
+  include:
+    name: "Go 1.11.x CentOS 32bits"
+    language: go
+    go: 1.11.x
+    os: linux
+    services:
+      - docker
+    script:
+      # Please update Go version in travis_test_32 as needed
+      - "docker run -i -v \"${PWD}:/zstd\" toopher/centos-i386:centos6 /bin/bash -c \"linux32 --32bit i386 /zstd/travis_test_32.sh\""
+
+install:
+  - "wget https://github.com/DataDog/zstd/files/2246767/mr.zip"
+  - "unzip mr.zip"
+script:
+  - "go build"
+  - "PAYLOAD=`pwd`/mr go test -v"
+  - "PAYLOAD=`pwd`/mr go test -bench ."

vendor/github.com/DataDog/zstd/travis_test_32.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+# Get utilities
+yum -y -q -e 0 install wget tar unzip gcc
+
+# Get Go
+wget -q https://dl.google.com/go/go1.11.1.linux-386.tar.gz
+tar -C /usr/local -xzf go1.11.1.linux-386.tar.gz
+export PATH=$PATH:/usr/local/go/bin
+
+# Get payload
+wget -q https://github.com/DataDog/zstd/files/2246767/mr.zip
+unzip mr.zip
+
+# Build and run tests
+cd zstd
+go build
+PAYLOAD=$(pwd)/mr go test -v
+PAYLOAD=$(pwd)/mr go test -bench .

vendor/github.com/DataDog/zstd/update.txt

@@ -0,0 +1,56 @@
+./lib/common/bitstream.h
+./lib/common/compiler.h
+./lib/compress/zstd_compress_internal.h
+./lib/compress/zstd_fast.h
+./lib/compress/zstd_double_fast.h
+./lib/compress/zstd_lazy.h
+./lib/compress/zstd_ldm.h
+./lib/dictBuilder/cover.c
+./lib/dictBuilder/divsufsort.c
+./lib/dictBuilder/divsufsort.h
+./lib/common/entropy_common.c
+./lib/common/error_private.c
+./lib/common/error_private.h
+./lib/compress/fse_compress.c
+./lib/common/fse_decompress.c
+./lib/common/fse.h
+./lib/compress/huf_compress.c
+./lib/decompress/huf_decompress.c
+./lib/common/huf.h
+./lib/common/mem.h
+./lib/common/pool.c
+./lib/common/pool.h
+./lib/common/threading.c
+./lib/common/threading.h
+./lib/common/xxhash.c
+./lib/common/xxhash.h
+./lib/deprecated/zbuff_common.c
+./lib/deprecated/zbuff_compress.c
+./lib/deprecated/zbuff_decompress.c
+./lib/deprecated/zbuff.h
+./lib/dictBuilder/zdict.c
+./lib/dictBuilder/zdict.h
+./lib/common/zstd_common.c
+./lib/compress/zstd_compress.c
+./lib/decompress/zstd_decompress.c
+./lib/common/zstd_errors.h
+./lib/zstd.h
+./lib/common/zstd_internal.h
+./lib/legacy/zstd_legacy.h
+./lib/compress/zstd_opt.c
+./lib/compress/zstd_opt.h
+./lib/legacy/zstd_v01.c
+./lib/legacy/zstd_v01.h
+./lib/legacy/zstd_v02.c
+./lib/legacy/zstd_v02.h
+./lib/legacy/zstd_v03.c
+./lib/legacy/zstd_v03.h
+./lib/legacy/zstd_v04.c
+./lib/legacy/zstd_v04.h
+./lib/legacy/zstd_v05.c
+./lib/legacy/zstd_v05.h
+./lib/legacy/zstd_v06.c
+./lib/legacy/zstd_v06.h
+./lib/legacy/zstd_v07.c
+./lib/legacy/zstd_v07.h
+