From 0b6350d463ae19a2ef923971157e2088f2f99b00 Mon Sep 17 00:00:00 2001
From: Evgenii Stratonikov <evgeniy@nspcc.ru>
Date: Thu, 21 Oct 2021 18:32:01 +0300
Subject: [PATCH] [#733] neofs-adm: fetch contracts release from Github

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
---
 .../internal/modules/morph/download.go        |  50 ++++++++++++++++++
 .../internal/modules/morph/initialize.go      |   8 +++
 go.mod                                        |   1 +
 go.sum                                        | Bin 98463 -> 99026 bytes
 4 files changed, 59 insertions(+)
 create mode 100644 cmd/neofs-adm/internal/modules/morph/download.go

diff --git a/cmd/neofs-adm/internal/modules/morph/download.go b/cmd/neofs-adm/internal/modules/morph/download.go
new file mode 100644
index 000000000..a8e72ce2d
--- /dev/null
+++ b/cmd/neofs-adm/internal/modules/morph/download.go
@@ -0,0 +1,50 @@
+package morph
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"strings"
+
+	"github.com/google/go-github/v39/github"
+	"github.com/spf13/cobra"
+)
+
+func downloadContractsFromGithub(cmd *cobra.Command) (string, error) {
+	gcl := github.NewClient(nil)
+	release, _, err := gcl.Repositories.GetLatestRelease(context.Background(), "nspcc-dev", "neofs-contract")
+	if err != nil {
+		return "", fmt.Errorf("can't fetch release info: %w", err)
+	}
+
+	cmd.Printf("Found %s (%s), downloading...\n", release.GetTagName(), release.GetName())
+
+	var url string
+	for _, a := range release.Assets {
+		if strings.HasPrefix(a.GetName(), "neofs-contract") {
+			url = a.GetBrowserDownloadURL()
+			break
+		}
+	}
+	if url == "" {
+		return "", errors.New("can't find contracts archive in release assets")
+	}
+
+	resp, err := http.Get(url)
+	if err != nil {
+		return "", fmt.Errorf("can't fetch contracts archive: %w", err)
+	}
+	defer resp.Body.Close()
+
+	f, err := os.CreateTemp("", "neofs-contract-*.tar.gz")
+	if err != nil {
+		return "", fmt.Errorf("can't allocate temporary file: %w", err)
+	}
+	defer f.Close()
+
+	_, err = io.Copy(f, resp.Body)
+	return f.Name(), err
+}
diff --git a/cmd/neofs-adm/internal/modules/morph/initialize.go b/cmd/neofs-adm/internal/modules/morph/initialize.go
index 1ca762ff8..34d178e0b 100644
--- a/cmd/neofs-adm/internal/modules/morph/initialize.go
+++ b/cmd/neofs-adm/internal/modules/morph/initialize.go
@@ -127,6 +127,14 @@ func newInitializeContext(cmd *cobra.Command, v *viper.Viper) (*initializeContex
 		if err != nil {
 			return nil, fmt.Errorf("missing contracts path: %w", err)
 		}
+		if ctrPath == "" {
+			cmd.Println("Contracts flag is missing, latest release will be fetched from Github.")
+			ctrPath, err = downloadContractsFromGithub(cmd)
+			if err != nil {
+				return nil, err
+			}
+			cmd.Printf("Saved to %s\n", ctrPath)
+		}
 	}
 
 	ns, err := c.GetNativeContracts()
diff --git a/go.mod b/go.mod
index 4bb5b853b..ca87ae54d 100644
--- a/go.mod
+++ b/go.mod
@@ -3,6 +3,7 @@ module github.com/nspcc-dev/neofs-node
 go 1.16
 
 require (
+	github.com/google/go-github/v39 v39.2.0
 	github.com/google/uuid v1.2.0
 	github.com/hashicorp/golang-lru v0.5.4
 	github.com/klauspost/compress v1.13.1
diff --git a/go.sum b/go.sum
index b010e8b46308ffaba1812b1197a48ab27fec8317..e7f1556a5f03cec6164f72b9b48caab7cdc648b5 100644
GIT binary patch
delta 496
zcmZ|Kv2L3{0LF23$xwBP)Jhq>wowcR92}hr=YRoYCvm`MZ(wS$Q*-t~u<24|h}5ma
zJwRTeRkplDl|De~4t<XXb*U6}_|~8P-_6zDkL$g!Uq<}rsK-Br&jq!Wfw!g?dw5-)
zsLml<THR7qC(HV@tW2~uE=Eaa)l8fO{mFF8zYSmU@4<^_D*qMw@6vghUB*Hs>#fJN
zrMB2`tl#%#07!W<_y}1iDO_T#B#JCmBf6EJ4aj*_QaKvt4d<rx=&2*5w7sNB!(mV$
z3?q#7-l0pJ@yhj~J+8}yK&iqY?p57m3pkm{_<nd`tS{fQx+vK^Pg@megTGBijv3A5
zS*1+OG<0Ub*_5<O7tuzr=blTEkLr#v%W4<#d-BqIjCu<F6Xi`4CUs2Zf=2aPBWSfW
zY^CViP#;pD&8KI>L7+<VhrkRP@Afr$^O@i6j`{9k-v%NA8c-Dx%15%4#G0<C2t}}Y
y+Z`>0?ZWBK7UKZsAz7XKVj=6Uj^kdg;VFzX2Sc_g{8N7a&^q{^b$hq_ee(xwR-}#q

delta 138
zcmccA$~M1|Z9{*!zCwnfm3Kykd2v~hb3txJMTv(~p=p*;Zh?M9SXObSMMj`+nx9XZ
zmz!fwk$ZaRWWy+t$>&3PCijK=ZvGId(V+)2KtI$!w=}#eFs-5@-!il$C&IV9G%(b{
p**87iFf}ToFeIovJ2=oQ+}nRL<2{AR{~yLpmVd^(+5Yk5`2hD`HCzAy