fixing merge conflict

funcs.go

@@ -1,10 +1,16 @@
 package sysutils
 
 import (
+	`bytes`
+	`errors`
+	`fmt`
+	`io/ioutil`
 	`os`
 	`runtime`
 	`strconv`
 	`strings`
+
+	`r00t2.io/sysutils/paths`
 )
 
 /*
@@ -206,3 +212,53 @@ func getArrStr(s string) (a []string, ok bool) {
 
 	return
 }
+
+/*
+	GetEnvPid will only work on *NIX-like systems with procfs.
+	It gets the environment variables of a given process' PID.
+*/
+func GetEnvPid(pid uint32) (env map[string]string, err error) {
+
+	var envBytes []byte
+	var envArr [][]byte
+	var procPath string
+	var exists bool
+
+	env = make(map[string]string, 0)
+
+	procPath = fmt.Sprintf("/proc/%v/environ", pid)
+
+	if exists, err = paths.RealPathExists(&procPath); err != nil {
+		return
+	}
+	if !exists {
+		err = errors.New(fmt.Sprintf("information for pid %v does not exist", pid))
+		return
+	}
+
+	if envBytes, err = ioutil.ReadFile(procPath); err != nil {
+		return
+	}
+
+	envArr = bytes.Split(envBytes, []byte{0x0})
+
+	for _, b := range envArr {
+
+		// s := strings.TrimSpace(string(b))
+		s := string(b)
+		e := strings.SplitN(s, "=", 2)
+
+		for _, i := range e {
+
+			if len(i) != 2 {
+				env[string(i[0])] = ""
+				continue
+			}
+
+			env[string(i[0])] = string(i[1])
+
+		}
+	}
+
+	return
+}

terminal/funcs.go

@@ -0,0 +1,40 @@
+/*
+   SysUtils - a library to assist with various system-related functions
+   Copyright (C) 2020  Brent Saner
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+
+package terminal
+
+import (
+	"os"
+	"fmt"
+)
+
+// IsShell returns true if the program is running inside an interactive shell (interactive invocation, sudo, etc.), and false if not (cron, ssh exec, pipe, etc.).
+// Thanks to https://rosettacode.org/wiki/Check_output_device_is_a_terminal#Go
+func IsShell() (interactive bool) {
+
+	var stdoutStat os.FileInfo
+
+	stdoutStat, _ = os.Stdout.Stat()
+
+	if (stdoutStaf.Mode() & os.ModeCharDevice) != 0 {
+		interactive = True
+	}
+
+	return
+}