Add clear images build cache button

Closes: #47

CHANGELOG.md

@@ -19,3 +19,4 @@
 - Add containers prune button to remove all stopped containers
 - Add a way to follow container logs, the logs are now paginated
 - Make container and image ids open their respective page with details
+- Add a button to clear images build cache

src/app/images.rs

@@ -171,6 +171,13 @@ impl App {
                     "Are you sure you want to prune unused images? This will delete all images not in use by a container.",
                 ));
             }
+            if ui.button("clear cache").clicked() {
+                self.popups.push_back(ui::ActionPopup::new(
+                    EventRequest::Image(ImageEvent::ClearCache),
+                    "Clear images cache",
+                    "Are you sure you want to clear image build cache?",
+                ));
+            }
         });
     }
 

src/app/mod.rs

@@ -625,6 +625,30 @@ impl App {
                 }
                 Err(e) => self.add_error(e),
             },
+            ClearCache(res) => match res {
+                Ok(info) => {
+                    let deleted = info
+                        .caches_deleted
+                        .map(|caches| {
+                            caches
+                                .into_iter()
+                                .fold("Deleted:\n".to_string(), |mut acc, c| {
+                                    acc.push_str(" - ");
+                                    acc.push_str(&c);
+                                    acc.push('\n');
+                                    acc
+                                })
+                        })
+                        .unwrap_or_default();
+                    self.add_notification(format!(
+                        "Space reclaimed: {}\n\n{}",
+                        crate::conv_b(info.space_reclaimed as u64),
+                        deleted
+                    ));
+                    self.send_event_notify(EventRequest::SystemDataUsage);
+                }
+                Err(e) => self.add_error(e),
+            },
         }
     }
 

src/event.rs

@@ -1,10 +1,10 @@
 use crate::worker::{Logs, RunningContainerStats};
 
 use docker_api::api::{
-    ContainerCreateOpts, ContainerDetails, ContainerId, ContainerInfo, ContainerListOpts,
-    ContainersPruneInfo, DataUsage, DeleteStatus, DistributionInspectInfo, History,
-    ImageBuildChunk, ImageDetails, ImageId, ImageInfo, ImageListOpts, ImagesPruneInfo, Info,
-    RegistryAuth, SearchResult, Version,
+    ClearCacheInfo, ContainerCreateOpts, ContainerDetails, ContainerId, ContainerInfo,
+    ContainerListOpts, ContainersPruneInfo, DataUsage, DeleteStatus, DistributionInspectInfo,
+    History, ImageBuildChunk, ImageDetails, ImageId, ImageInfo, ImageListOpts, ImagesPruneInfo,
+    Info, RegistryAuth, SearchResult, Version,
 };
 use docker_api::Error;
 use std::path::PathBuf;
@@ -68,6 +68,7 @@ pub enum ImageEvent {
     },
     PullChunks,
     Prune,
+    ClearCache,
 }
 
 #[derive(Debug)]
@@ -110,6 +111,7 @@ pub enum ImageEventResponse {
     ForceDelete(anyhow::Result<DeleteStatus>),
     Import(anyhow::Result<String>),
     Prune(anyhow::Result<ImagesPruneInfo>),
+    ClearCache(anyhow::Result<ClearCacheInfo>),
 }
 
 #[derive(Debug)]

src/worker/mod.rs

@@ -16,7 +16,10 @@ pub use stats::{RunningContainerStats, StatsWorker, StatsWorkerEvent};
 
 use anyhow::{Context, Result};
 use docker_api::{
-    api::{ImageListOpts, ImagePruneOpts, ImagesPruneFilter, RmContainerOpts, RmImageOpts},
+    api::{
+        ClearCacheOpts, ImageListOpts, ImagePruneOpts, ImagesPruneFilter, RmContainerOpts,
+        RmImageOpts,
+    },
     Docker,
 };
 use log::{debug, error, trace};
@@ -466,6 +469,21 @@ impl DockerWorker {
                                     }
                                 }
                             }
+                            ImageEvent::ClearCache => {
+                                match docker
+                                    .images()
+                                    .clear_cache(&ClearCacheOpts::builder().all(true).build())
+                                    .await
+                                    .context("clearing image cache failed")
+                                {
+                                    Ok(info) => EventResponse::Image(
+                                        ImageEventResponse::ClearCache(Ok(info)),
+                                    ),
+                                    Err(e) => {
+                                        EventResponse::Image(ImageEventResponse::ClearCache(Err(e)))
+                                    }
+                                }
+                            }
                         },
                         EventRequest::DockerUriChange { uri } => {
                             if uri == current_uri {