From 9cd9054cdb825a2078dc8114801127e71526227d Mon Sep 17 00:00:00 2001
From: Ainar Garipov <a.garipov@adguard.com>
Date: Tue, 2 Feb 2021 20:32:44 +0300
Subject: [PATCH] Pull request: updater: fix pkg unpacking

Merge in DNS/adguard-home from 2630-updates to master

Updates #2630.

Squashed commit of the following:

commit 6dab69d2ed11bdf735df2d3acd5afa77a7d7b1c0
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Tue Feb 2 20:00:59 2021 +0300

    all: changelog

commit 63720bb5cb821bf68774e45836dd1daf9d0fc8f1
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Tue Feb 2 19:54:28 2021 +0300

    updater: fix pkg unpacking
---
 CHANGELOG.md                |  6 ++++--
 internal/updater/updater.go | 18 ++++++++++++++++++
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2328d259..b4af0e4a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -70,13 +70,14 @@ and this project adheres to
 
 ### Deprecated
 
-- _Go_ 1.14 support.  v0.106.0 will require at least _Go_ 1.15 to build.
+- Go 1.14 support.  v0.106.0 will require at least Go 1.15 to build.
 - The `darwin/386` port.  It will be removed in v0.106.0.
 - The `"rule"` and `"filter_id"` fields in `GET /filtering/check_host` and
   `GET /querylog` responses.  They will be removed in v0.106.0 ([#2102]).
 
 ### Fixed
 
+- Autoupdate bug in the Darwin (macOS) version ([#2630]).
 - Unnecessary conversions from `string` to `net.IP`, and vice versa ([#2508]).
 - Inability to set DNS cache TTL limits ([#2459]).
 - Possible freezes on slower machines ([#2225]).
@@ -92,6 +93,7 @@ and this project adheres to
 [#2355]: https://github.com/AdguardTeam/AdGuardHome/issues/2355
 [#2459]: https://github.com/AdguardTeam/AdGuardHome/issues/2459
 [#2508]: https://github.com/AdguardTeam/AdGuardHome/issues/2508
+[#2630]: https://github.com/AdguardTeam/AdGuardHome/issues/2630
 
 ### Removed
 
@@ -127,7 +129,7 @@ and this project adheres to
 
 - Query logs from file not loading after the ones buffered in memory ([#2325]).
 - Unnecessary errors in query logs when switching between log files ([#2324]).
-- `404 Not Found` errors on the DHCP settings page on *Windows*.  The page now
+- `404 Not Found` errors on the DHCP settings page on Windows.  The page now
   correctly shows that DHCP is not currently available on that OS ([#2295]).
 - Infinite loop in `/dhcp/find_active_dhcp` ([#2301]).
 
diff --git a/internal/updater/updater.go b/internal/updater/updater.go
index 8d0bee5f..73a2f7cb 100644
--- a/internal/updater/updater.go
+++ b/internal/updater/updater.go
@@ -355,6 +355,16 @@ func tarGzFileUnpack(tarfile, outdir string) ([]string, error) {
 		outputName := filepath.Join(outdir, inputNameOnly)
 
 		if header.Typeflag == tar.TypeDir {
+			if inputNameOnly == "AdGuardHome" {
+				// Top-level AdGuardHome/.  Skip it.
+				//
+				// TODO(a.garipov): This whole package needs to
+				// be rewritten and covered in more integration
+				// tests.  It has weird assumptions and file
+				// mode issues.
+				continue
+			}
+
 			err = os.Mkdir(outputName, os.FileMode(header.Mode&0o777))
 			if err != nil && !os.IsExist(err) {
 				err2 = fmt.Errorf("os.Mkdir(%s): %w", outputName, err)
@@ -422,6 +432,14 @@ func zipFileUnpack(zipfile, outdir string) ([]string, error) {
 		outputName := filepath.Join(outdir, inputNameOnly)
 
 		if fi.IsDir() {
+			if inputNameOnly == "AdGuardHome" {
+				// Top-level AdGuardHome/.  Skip it.
+				//
+				// TODO(a.garipov): See the similar todo in
+				// tarGzFileUnpack.
+				continue
+			}
+
 			err = os.Mkdir(outputName, fi.Mode())
 			if err != nil && !os.IsExist(err) {
 				err2 = fmt.Errorf("os.Mkdir(): %w", err)