| // Copyright 2020 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| package main |
| |
| import ( |
| "context" |
| |
| "github.com/maruel/subcommands" |
| ) |
| |
| var cmdCacheTrim = &subcommands.Command{ |
| Advanced: true, |
| UsageLine: "cache-trim [...]", |
| ShortDesc: "trims the local cache of unpacked tarballs", |
| LongDesc: `Trims the local cache of unpacked tarballs. |
| |
| Sorts cache entries by last access time and removes oldest ones until only |
| the amount specified by -keep remain. |
| `, |
| |
| CommandRun: func() subcommands.CommandRun { |
| c := &cmdCacheTrimRun{} |
| c.init() |
| return c |
| }, |
| } |
| |
| type cmdCacheTrimRun struct { |
| commandBase |
| |
| keep int // -keep flag |
| } |
| |
| func (c *cmdCacheTrimRun) init() { |
| c.commandBase.init(c.exec, extraFlags{ |
| cacheDir: true, |
| }) |
| c.Flags.IntVar(&c.keep, "keep", 50, "How many cache entries to keep (default is 50).") |
| } |
| |
| func (c *cmdCacheTrimRun) exec(ctx context.Context) error { |
| if c.keep < 0 { |
| return errBadFlag("-keep", "must be non-negative") |
| } |
| return c.cache.Trim(ctx, c.keep) |
| } |
