1 /*
2  * Copyright 2024 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package bench.flame.diff.command
17 
18 import bench.flame.diff.config.Paths
19 import bench.flame.diff.interop.FileWithId
20 import bench.flame.diff.interop.withId
21 import bench.flame.diff.ui.printFileTable
22 import com.github.ajalt.clikt.core.CliktCommand
23 import com.github.ajalt.mordant.markdown.Markdown
24 import java.io.File
25 import kotlin.collections.List
26 
27 class List : CliktCommand(help = "List all saved trace files.") {
runnull28     override fun run() {
29         val savedTracesDir = Paths.savedTracesDir.toFile()
30         val traces = savedTraces(savedTracesDir)
31 
32         if (traces.isEmpty()) {
33             echo(
34                 Markdown(
35                     "No trace files saved. Run the **${Save().commandName}** command" +
36                             " to save traces for future comparison."
37                 )
38             )
39             return
40         }
41 
42         printFileTable(traces, savedTracesDir)
43     }
44 
45     companion object {
46         /** Returns a list of saved traces sorted by 'most recently modified first' */
savedTracesnull47         internal fun savedTraces(savedTracesDir: File): List<FileWithId> =
48             savedTracesDir
49                 .listFiles()
50                 .let { it ?: return emptyList() }
<lambda>null51                 .filter { !it.name.lowercase().endsWith(".json") }
<lambda>null52                 .sortedBy { -it.lastModified() }
53                 .asSequence()
54                 .withId()
55                 .toList()
56     }
57 }
58