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65 lines
2.0 KiB
Go
65 lines
2.0 KiB
Go
// -*- Mode: Go; indent-tabs-mode: t -*-
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/*
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* Copyright (C) 2015 Canonical Ltd
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 3 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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package cli
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import (
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"fmt"
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"os"
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"os/exec"
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"strings"
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"gopkg.in/check.v1"
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)
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var execCommand = exec.Command
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// ExecCommand executes a shell command and returns a string with the output
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// of the command. In case of error, it will fail the test.
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func ExecCommand(c *check.C, cmds ...string) string {
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output, err := ExecCommandErr(cmds...)
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c.Assert(err, check.IsNil, check.Commentf("Error: %v", output))
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return output
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}
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// ExecCommandToFile executes a shell command and saves the output of the
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// command to a file. In case of error, it will fail the test.
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func ExecCommandToFile(c *check.C, filename string, cmds ...string) {
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cmd := execCommand(cmds[0], cmds[1:]...)
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outfile, err := os.Create(filename)
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c.Assert(err, check.IsNil, check.Commentf("Error creating output file %s", filename))
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defer outfile.Close()
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cmd.Stdout = outfile
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err = cmd.Run()
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c.Assert(err, check.IsNil, check.Commentf("Error executing command '%v': %v", cmds, err))
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}
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// ExecCommandErr executes a shell command and returns a string with the output
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// of the command and eventually the obtained error
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func ExecCommandErr(cmds ...string) (output string, err error) {
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fmt.Println(strings.Join(cmds, " "))
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cmd := execCommand(cmds[0], cmds[1:]...)
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outputByte, err := cmd.CombinedOutput()
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output = string(outputByte)
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fmt.Print(output)
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return
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}
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