🚧 Add cool-down command

Taskfile.yml

@@ -25,12 +25,26 @@ tasks:
       - task: cmd-build
         vars:
           CMD: convids
+  build-cool-down:
+    desc: Builds the cool-down command
+    source:
+      - cmd/cool-down/**/*.go
+      - chill/*.go
+      - cli/err/*.go
+      - cli/spin/*.go
+    generates:
+      - build/cool-down
+    cmds:
+      - task: cmd-build
+        vars:
+          CMD: cool-down
   build-all:
     desc: Builds all available commands
     sources:
       - "**/*.go"
     generates:
       - build/convids
+      - build/cool-down
     cmds:
       - task: cmd-build
         vars:

chill/chill.go

@@ -0,0 +1,47 @@
+package chill
+
+import (
+	"bytes"
+	"context"
+	"errors"
+	"os"
+	"strconv"
+	"time"
+)
+
+var TempFile string = "/sys/class/thermal/thermal_zone2/temp"
+var MaxTemp int = 72500
+var Sleep = time.Second * 10
+var ErrChilledOut = errors.New("temperature dropped below threshold")
+
+func Chill(baseCtx context.Context) context.Context {
+	ctx, cancel := context.WithCancelCause(baseCtx)
+
+	go func() {
+		var by []byte
+		var err error
+		current := MaxTemp + 1
+
+		for current >= MaxTemp {
+			by, err = os.ReadFile(TempFile)
+			if err != nil {
+				cancel(err)
+				return
+			}
+
+			by = bytes.TrimSpace(by)
+			current, err = strconv.Atoi(string(by))
+			if err != nil {
+				cancel(err)
+				return
+			}
+			if current < MaxTemp {
+				break
+			}
+			time.Sleep(Sleep)
+		}
+		cancel(ErrChilledOut)
+	}()
+
+	return ctx
+}

cmd/cool-down/main.go

@@ -0,0 +1,16 @@
+package main
+
+import (
+	"context"
+
+	"codeberg.org/danjones000/utils/chill"
+	e "codeberg.org/danjones000/utils/cli/err"
+	"codeberg.org/danjones000/utils/cli/spin"
+)
+
+func main() {
+	ctx := chill.Chill(context.Background())
+	s := spin.Spin(ctx, "Waiting for CPU to cool...")
+	err := s.Wait()
+	e.HandleErr(err)
+}