mirror of
https://github.com/gogrlx/snack.git
synced 2026-04-02 05:08:42 -07:00
Tai Groot
0d6c5d9e17
- Add snack.Locker embed for per-provider mutex serialization - Update all providers (pacman, apk, apt, dpkg) to use []Target with version pinning support (pkg=version syntax) - Add lock/unlock to all mutating operations (Install, Remove, Purge, Upgrade, Update) - Add snack.TargetNames helper and formatTargets per provider - apt: add FromRepo (-t) and Reinstall support - dpkg: use Target.Source for .deb file paths in Install
28 lines
847 B
Go
28 lines
847 B
Go
package snack
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import "sync"
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// Locker is an embeddable type that provides per-provider mutex locking.
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// Each package manager backend should embed this in its struct to serialize
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// mutating operations (Install, Remove, Purge, Upgrade, Update).
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//
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// Read-only operations (List, Search, Info, IsInstalled, Version) generally
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// don't need the lock, but backends may choose to lock them if the underlying
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// tool doesn't support concurrent reads.
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//
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// Different providers use independent locks, so an apt Install and a snap
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// Install can run concurrently, but two apt Installs will serialize.
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type Locker struct {
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mu sync.Mutex
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}
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// Lock acquires the provider lock. Call before mutating operations.
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func (l *Locker) Lock() {
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l.mu.Lock()
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}
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// Unlock releases the provider lock. Defer after Lock.
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func (l *Locker) Unlock() {
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l.mu.Unlock()
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}
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