Merge branch 'v4.0.2' into master

8 files changed, 46 insertions, 5 deletions

diff --git a/README.md b/README.md
index b8be2df..6956921 100644
--- a/README.md
+++ b/README.md
@@ -62,7 +62,11 @@ gotop should build with most versions of Go.  If you have a version other than 1
 git clone https://github.com/xxxserxxx/gotop.git
 cd gotop
 sed -i '/^go/d' go.mod          # Do this if you have go != 1.14
-go build -o gotop ./cmd/gotop
+VERS="$(git tag -l --sort=-v:refname | sed 's/v\([^-].*\)/\1/g' | head -1 | tr -d '-' ).$(git describe --long --tags | sed 's/\([^-].*\)-\([0-9]*\)-\(g.*\)/r\2.\3/g' | tr -d '-')"
+DAT=$(date +%Y%m%dT%H%M%S)
+go build -o gotop \
+	-ldflags "-X main.Version=v${VERS} -X main.BuildDate=${DAT}" \
+	./cmd/gotop
 ```
 
 Move `gotop` to somewhere in your `$PATH`.
diff --git a/devices/cpu_cpu.go b/devices/cpu_cpu.go
index 1ee50f7..9847572 100644
--- a/devices/cpu_cpu.go
+++ b/devices/cpu_cpu.go
@@ -8,7 +8,7 @@ import (
 
 func init() {
 	f := func(cpus map[string]int, l bool) map[string]error {
-		cpuCount, err := psCpu.Counts(l)
+		cpuCount, err := CpuCount()
 		if err != nil {
 			return nil
 		}
diff --git a/devices/cpu_linux.go b/devices/cpu_linux.go
new file mode 100644
index 0000000..4e836d5
--- /dev/null
+++ b/devices/cpu_linux.go
@@ -0,0 +1,23 @@
+// +build linux
+
+package devices
+
+import "github.com/shirou/gopsutil/cpu"
+
+func CpuCount() (int, error) {
+	cpuCount, err := cpu.Counts(false)
+	if err != nil {
+		return 0, err
+	}
+	if cpuCount == 0 {
+		is, err := cpu.Info()
+		if err != nil {
+			return 0, err
+		}
+		if is[0].Cores > 0 {
+			return len(is) / 2, nil
+		}
+		return len(is), nil
+	}
+	return cpuCount, nil
+}
diff --git a/devices/cpu_other.go b/devices/cpu_other.go
new file mode 100644
index 0000000..95d183f
--- /dev/null
+++ b/devices/cpu_other.go
@@ -0,0 +1,9 @@
+// +build !linux
+
+package devices
+
+import "github.com/shirou/gopsutil/cpu"
+
+func CpuCount() (int, error) {
+	return cpu.Counts(false)
+}
diff --git a/devices/temp_linux.go b/devices/temp_linux.go
index 6967232..0bd480f 100644
--- a/devices/temp_linux.go
+++ b/devices/temp_linux.go
@@ -15,6 +15,7 @@ func devs() []string {
 	}
 	sensors, err := host.SensorsTemperatures()
 	if err != nil {
+		// FIXME report the error
 		return []string{}
 	}
 	rv := make([]string, 0, len(sensors))
diff --git a/widgets/batterygauge.go b/widgets/batterygauge.go
index 135f223..02a8866 100644
--- a/widgets/batterygauge.go
+++ b/widgets/batterygauge.go
@@ -51,6 +51,10 @@ func (b *BatteryGauge) update() {
 		}
 		return
 	}
+	if len(bats) < 1 {
+		b.Label = fmt.Sprintf("N/A")
+		return
+	}
 	mx := 0.0
 	cu := 0.0
 	charging := "%d%% ⚡%s"
diff --git a/widgets/proc.go b/widgets/proc.go
index f47f646..218ba63 100644
--- a/widgets/proc.go
+++ b/widgets/proc.go
@@ -9,9 +9,8 @@ import (
 	"strings"
 	"time"
 
-	psCPU "github.com/shirou/gopsutil/cpu"
-
 	tui "github.com/gizak/termui/v3"
+	"github.com/xxxserxxx/gotop/v4/devices"
 	ui "github.com/xxxserxxx/gotop/v4/termui"
 	"github.com/xxxserxxx/gotop/v4/utils"
 )
@@ -49,7 +48,7 @@ type ProcWidget struct {
 }
 
 func NewProcWidget() *ProcWidget {
-	cpuCount, err := psCPU.Counts(false)
+	cpuCount, err := devices.CpuCount()
 	if err != nil {
 		log.Printf("failed to get CPU count from gopsutil: %v", err)
 	}
diff --git a/widgets/proc_linux.go b/widgets/proc_linux.go
index 164319d..8fb53a0 100644
--- a/widgets/proc_linux.go
+++ b/widgets/proc_linux.go
@@ -19,6 +19,7 @@ func getProcs() ([]Proc, error) {
 
 	procs := []Proc{}
 	for _, line := range linesOfProcStrings {
+		log.Printf("line is '%s', pid is '%s', cpu is '%s', mem is '%s'", line, strings.TrimSpace(line[0:10]), strings.TrimSpace(line[63:68]), strings.TrimSpace(line[69:74]))
 		pid, err := strconv.Atoi(strings.TrimSpace(line[0:10]))
 		if err != nil {
 			log.Printf("failed to convert PID to int: %v. line: %v", err, line)