Add android support

.travis.yml

@@ -1,4 +1,6 @@
 language: go
 
 go:
-  - 1.2.1
+  - 1.11.x
+  - 1.12.x
+  - 1.13.x

process_android.go

@@ -0,0 +1,47 @@
+// +build android
+
+package ps
+
+import (
+	"fmt"
+	"io/ioutil"
+	"strings"
+)
+
+// Refresh reloads all the data associated with this process.
+func (p *UnixProcess) Refresh() error {
+	statPath := fmt.Sprintf("/proc/%d/stat", p.pid)
+	dataBytes, err := ioutil.ReadFile(statPath)
+	if err != nil {
+		return err
+	}
+	cmdPath := fmt.Sprintf("/proc/%d/cmdline", p.pid)
+	cmdBytes, err := ioutil.ReadFile(cmdPath)
+	if err != nil {
+		return err
+	}
+
+	// First, parse out the image name
+	cmd  := string(cmdBytes)
+	args := strings.SplitN(cmd, string(0x0), 2)
+	if len(args) > 0 {
+		p.binary = args[0]
+	}
+	data := string(dataBytes)
+	binStart := strings.IndexRune(data, '(') + 1
+	binEnd := strings.IndexRune(data[binStart:], ')')
+	if p.binary == "" {
+		p.binary = data[binStart : binStart+binEnd]
+	}
+
+	// Move past the image name and start parsing the rest
+	data = data[binStart+binEnd+2:]
+	_, err = fmt.Sscanf(data,
+		"%c %d %d %d",
+		&p.state,
+		&p.ppid,
+		&p.pgrp,
+		&p.sid)
+
+	return err
+}

process_linux.go

@@ -1,4 +1,4 @@
-// +build linux
+// +build linux,!android
 
 package ps