[lxc-devel] [distrobuilder/master] managers: Add preRefresh hook

[monstermunchkin on Github]

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From 80452e395b66cb42c10041e99442f17b9cc1c0ca Mon Sep 17 00:00:00 2001
From: Thomas Hipp <thomas.hipp at canonical.com>
Date: Thu, 20 Feb 2020 16:04:45 +0100
Subject: [PATCH 1/2] managers: Add preRefresh hook

This adds the preRefresh hook which will run before a refresh.

Signed-off-by: Thomas Hipp <thomas.hipp at canonical.com>
---
 managers/manager.go | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/managers/manager.go b/managers/manager.go
index 09945aaa..274ea724 100644
--- a/managers/manager.go
+++ b/managers/manager.go
@@ -14,7 +14,8 @@ type ManagerFlags struct {
 
 // ManagerHooks represents custom hooks.
 type ManagerHooks struct {
-	clean func() error
+	clean      func() error
+	preRefresh func() error
 }
 
 // ManagerCommands represents all commands.
@@ -139,6 +140,13 @@ func (m Manager) Refresh() error {
 		return nil
 	}
 
+	if m.hooks.preRefresh != nil {
+		err := m.hooks.preRefresh()
+		if err != nil {
+			return err
+		}
+	}
+
 	args := append(m.flags.global, m.flags.refresh...)
 
 	return shared.RunCommand(m.commands.refresh, args...)

From e0005e85bacaaa6397106a7e867c8beabe488baf Mon Sep 17 00:00:00 2001
From: Thomas Hipp <thomas.hipp at canonical.com>
Date: Thu, 20 Feb 2020 16:05:34 +0100
Subject: [PATCH 2/2] managers/opkg: Use preRefresh hook

Signed-off-by: Thomas Hipp <thomas.hipp at canonical.com>
---
 managers/opkg.go | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/managers/opkg.go b/managers/opkg.go
index f185a1a5..25eb8e34 100644
--- a/managers/opkg.go
+++ b/managers/opkg.go
@@ -1,5 +1,7 @@
 package managers
 
+import "os"
+
 // NewOpkg creates a new Manager instance.
 func NewOpkg() *Manager {
 	return &Manager{
@@ -28,5 +30,10 @@ func NewOpkg() *Manager {
 				"Not supported",
 			},
 		},
+		hooks: ManagerHooks{
+			preRefresh: func() error {
+				return os.MkdirAll("/var/lock", 0755)
+			},
+		},
 	}
 }