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package oscommands
import (
"os/exec"
)
// A command object is a general way to represent a command to be run on the
// command line.
type ICmdObj interface {
GetCmd() *exec.Cmd
// outputs string representation of command. Note that if the command was built
// using NewFromArgs, the output won't be quite the same as what you would type
// into a terminal e.g. 'sh -c git commit' as opposed to 'sh -c "git commit"'
ToString() string
AddEnvVars(...string) ICmdObj
GetEnvVars() []string
// runs the command and returns an error if any
Run() error
// runs the command and returns the output as a string, and an error if any
RunWithOutput() (string, error)
// runs the command and runs a callback function on each line of the output. If the callback returns true for the boolean value, we kill the process and return.
RunAndProcessLines(onLine func(line string) (bool, error)) error
// logs command
Log() ICmdObj
}
type CmdObj struct {
cmdStr string
cmd *exec.Cmd
runner ICmdObjRunner
logCommand func(ICmdObj)
}
func (self *CmdObj) GetCmd() *exec.Cmd {
return self.cmd
}
func (self *CmdObj) ToString() string {
return self.cmdStr
}
func (self *CmdObj) AddEnvVars(vars ...string) ICmdObj {
self.cmd.Env = append(self.cmd.Env, vars...)
return self
}
func (self *CmdObj) GetEnvVars() []string {
return self.cmd.Env
}
func (self *CmdObj) Log() ICmdObj {
self.logCommand(self)
return self
}
func (self *CmdObj) Run() error {
return self.runner.Run(self)
}
func (self *CmdObj) RunWithOutput() (string, error) {
return self.runner.RunWithOutput(self)
}
func (self *CmdObj) RunAndProcessLines(onLine func(line string) (bool, error)) error {
return self.runner.RunAndProcessLines(self, onLine)
}
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