Update vendor using docker vendor script

Signed-off-by: Vincent Demeester <vincent@sbr.pm>

hack/.vendor-helpers.sh

@@ -0,0 +1,100 @@
+#!/usr/bin/env bash
+
+PROJECT=github.com/runcom/skopeo
+
+# Downloads dependencies into vendor/ directory
+mkdir -p vendor
+
+export GOPATH="$GOPATH:${PWD}/vendor"
+
+find="/usr/bin/find"
+
+clone() {
+	local vcs="$1"
+	local pkg="$2"
+	local rev="$3"
+	local url="$4"
+
+	: ${url:=https://$pkg}
+	local target="vendor/src/$pkg"
+
+	echo -n "$pkg @ $rev: "
+
+	if [ -d "$target" ]; then
+		echo -n 'rm old, '
+		rm -rf "$target"
+	fi
+
+	echo -n 'clone, '
+	case "$vcs" in
+		git)
+			git clone --quiet --no-checkout "$url" "$target"
+			( cd "$target" && git checkout --quiet "$rev" && git reset --quiet --hard "$rev" )
+			;;
+		hg)
+			hg clone --quiet --updaterev "$rev" "$url" "$target"
+			;;
+	esac
+
+	echo -n 'rm VCS, '
+	( cd "$target" && rm -rf .{git,hg} )
+
+	echo -n 'rm vendor, '
+	( cd "$target" && rm -rf vendor Godeps/_workspace )
+
+	echo done
+}
+
+clean() {
+	local packages=(
+		"${PROJECT}" # package main
+	)
+	local platforms=( linux/amd64 linux/386 )
+
+	echo
+
+	echo -n 'collecting import graph, '
+	local IFS=$'\n'
+	local imports=( $(
+		for platform in "${platforms[@]}"; do
+			export GOOS="${platform%/*}";
+			export GOARCH="${platform##*/}";
+			go list -e -tags "$buildTags" -f '{{join .Deps "\n"}}' "${packages[@]}"
+			go list -e -tags "$buildTags" -f '{{join .TestImports "\n"}}' "${packages[@]}"
+		done | grep -vE "^${PROJECT}" | sort -u
+	) )
+	imports=( $(go list -e -f '{{if not .Standard}}{{.ImportPath}}{{end}}' "${imports[@]}") )
+	unset IFS
+
+	echo -n 'pruning unused packages, '
+	findArgs=(
+		# This directory contains only .c and .h files which are necessary
+		# -path vendor/src/github.com/mattn/go-sqlite3/code
+	)
+	for import in "${imports[@]}"; do
+		[ "${#findArgs[@]}" -eq 0 ] || findArgs+=( -or )
+		findArgs+=( -path "vendor/src/$import" )
+	done
+	local IFS=$'\n'
+	local prune=( $($find vendor -depth -type d -not '(' "${findArgs[@]}" ')') )
+	unset IFS
+	for dir in "${prune[@]}"; do
+		$find "$dir" -maxdepth 1 -not -type d -not -name 'LICENSE*' -not -name 'COPYING*' -exec rm -v -f '{}' ';'
+		rmdir "$dir" 2>/dev/null || true
+	done
+
+	echo -n 'pruning unused files, '
+	$find vendor -type f -name '*_test.go' -exec rm -v '{}' ';'
+
+	echo done
+}
+
+# Fix up hard-coded imports that refer to Godeps paths so they'll work with our vendoring
+fix_rewritten_imports () {
+       local pkg="$1"
+       local remove="${pkg}/Godeps/_workspace/src/"
+       local target="vendor/src/$pkg"
+
+       echo "$pkg: fixing rewritten imports"
+       $find "$target" -name \*.go -exec sed -i -e "s|\"${remove}|\"|g" {} \;
+}

hack/vendor.sh

@@ -0,0 +1,28 @@
+#!/usr/bin/env bash
+set -e
+
+cd "$(dirname "$BASH_SOURCE")/.."
+rm -rf vendor/
+source 'hack/.vendor-helpers.sh'
+
+clone git github.com/codegangsta/cli c31a7975863e7810c92e2e288a9ab074f9a88f29
+clone git github.com/Azure/go-ansiterm 70b2c90b260171e829f1ebd7c17f600c11858dbe
+clone git github.com/Sirupsen/logrus v0.8.7 # logrus is a common dependency among multiple deps
+clone git github.com/docker/docker v1.10.0-rc1
+clone git github.com/docker/libtrust 9cbd2a1374f46905c68a4eb3694a130610adc62a
+clone git github.com/gorilla/context 14f550f51a
+clone git github.com/gorilla/mux e444e69cbd
+clone git golang.org/x/net 47990a1ba55743e6ef1affd3a14e5bac8553615d https://github.com/golang/net.git
+clone git github.com/docker/go-units 651fc226e7441360384da338d0fd37f2440ffbe3
+clone git github.com/docker/go-connections v0.1.2
+clone git github.com/docker/engine-api v0.2.2
+
+# get graph and distribution packages
+clone git github.com/docker/distribution 47a064d4195a9b56133891bbb13620c3ac83a827
+clone git github.com/vbatts/tar-split v0.9.11
+
+clone git github.com/opencontainers/runc 47e3f834d73e76bc2a6a585b48d2a93325b34979 # libcontainer
+
+clean
+
+mv vendor/src/* vendor/