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powershell.go
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powershell.go
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package shells
import (
"bufio"
"bytes"
"fmt"
"io"
"path"
"path/filepath"
"strings"
"gitlab.com/gitlab-org/gitlab-runner/common"
"gitlab.com/gitlab-org/gitlab-runner/helpers"
)
type PowerShell struct {
AbstractShell
}
type PsWriter struct {
bytes.Buffer
TemporaryPath string
indent int
}
func psQuote(text string) string {
// taken from: http://www.robvanderwoude.com/escapechars.php
text = strings.Replace(text, "`", "``", -1)
// text = strings.Replace(text, "\0", "`0", -1)
text = strings.Replace(text, "\a", "`a", -1)
text = strings.Replace(text, "\b", "`b", -1)
text = strings.Replace(text, "\f", "^f", -1)
text = strings.Replace(text, "\r", "`r", -1)
text = strings.Replace(text, "\n", "`n", -1)
text = strings.Replace(text, "\t", "^t", -1)
text = strings.Replace(text, "\v", "^v", -1)
text = strings.Replace(text, "#", "`#", -1)
text = strings.Replace(text, "'", "`'", -1)
text = strings.Replace(text, "\"", "`\"", -1)
return "\"" + text + "\""
}
func psQuoteVariable(text string) string {
text = psQuote(text)
text = strings.Replace(text, "$", "`$", -1)
return text
}
func (b *PsWriter) GetTemporaryPath() string {
return b.TemporaryPath
}
func (b *PsWriter) Line(text string) {
b.WriteString(strings.Repeat(" ", b.indent) + text + "\r\n")
}
func (b *PsWriter) CheckForErrors() {
b.checkErrorLevel()
}
func (b *PsWriter) Indent() {
b.indent++
}
func (b *PsWriter) Unindent() {
b.indent--
}
func (b *PsWriter) checkErrorLevel() {
b.Line("if(!$?) { Exit $LASTEXITCODE }")
b.Line("")
}
func (b *PsWriter) Command(command string, arguments ...string) {
b.Line(b.buildCommand(command, arguments...))
b.checkErrorLevel()
}
func (b *PsWriter) buildCommand(command string, arguments ...string) string {
list := []string{
psQuote(command),
}
for _, argument := range arguments {
list = append(list, psQuote(argument))
}
return "& " + strings.Join(list, " ")
}
func (b *PsWriter) TmpFile(name string) string {
filePath := b.Absolute(path.Join(b.TemporaryPath, name))
return helpers.ToBackslash(filePath)
}
func (b *PsWriter) EnvVariableKey(name string) string {
return fmt.Sprintf("$%s", name)
}
func (b *PsWriter) Variable(variable common.JobVariable) {
if variable.File {
variableFile := b.TmpFile(variable.Key)
b.Line(fmt.Sprintf("md %s -Force | out-null", psQuote(helpers.ToBackslash(b.TemporaryPath))))
b.Line(fmt.Sprintf("Set-Content %s -Value %s -Encoding UTF8 -Force", psQuote(variableFile), psQuoteVariable(variable.Value)))
b.Line("$" + variable.Key + "=" + psQuote(variableFile))
} else {
b.Line("$" + variable.Key + "=" + psQuoteVariable(variable.Value))
}
b.Line("$env:" + variable.Key + "=$" + variable.Key)
}
func (b *PsWriter) IfDirectory(path string) {
b.Line("if(Test-Path " + psQuote(helpers.ToBackslash(path)) + " -PathType Container) {")
b.Indent()
}
func (b *PsWriter) IfFile(path string) {
b.Line("if(Test-Path " + psQuote(helpers.ToBackslash(path)) + " -PathType Leaf) {")
b.Indent()
}
func (b *PsWriter) IfCmd(cmd string, arguments ...string) {
b.Line(b.buildCommand(cmd, arguments...) + " 2>$null")
b.Line("if($?) {")
b.Indent()
}
func (b *PsWriter) IfCmdWithOutput(cmd string, arguments ...string) {
b.Line(b.buildCommand(cmd, arguments...))
b.Line("if($?) {")
b.Indent()
}
func (b *PsWriter) Else() {
b.Unindent()
b.Line("} else {")
b.Indent()
}
func (b *PsWriter) EndIf() {
b.Unindent()
b.Line("}")
}
func (b *PsWriter) Cd(path string) {
b.Line("cd " + psQuote(helpers.ToBackslash(path)))
b.checkErrorLevel()
}
func (b *PsWriter) MkDir(path string) {
b.Line(fmt.Sprintf("md %s -Force | out-null", psQuote(helpers.ToBackslash(path))))
}
func (b *PsWriter) MkTmpDir(name string) string {
path := helpers.ToBackslash(path.Join(b.TemporaryPath, name))
b.MkDir(path)
return path
}
func (b *PsWriter) RmDir(path string) {
path = psQuote(helpers.ToBackslash(path))
b.Line("if( (Get-Command -Name Remove-Item2 -Module NTFSSecurity -ErrorAction SilentlyContinue) -and (Test-Path " + path + " -PathType Container) ) {")
b.Indent()
b.Line("Remove-Item2 -Force -Recurse " + path)
b.Unindent()
b.Line("} elseif(Test-Path " + path + ") {")
b.Indent()
b.Line("Remove-Item -Force -Recurse " + path)
b.Unindent()
b.Line("}")
b.Line("")
}
func (b *PsWriter) RmFile(path string) {
path = psQuote(helpers.ToBackslash(path))
b.Line("if( (Get-Command -Name Remove-Item2 -Module NTFSSecurity -ErrorAction SilentlyContinue) -and (Test-Path " + path + " -PathType Leaf) ) {")
b.Indent()
b.Line("Remove-Item2 -Force " + path)
b.Unindent()
b.Line("} elseif(Test-Path " + path + ") {")
b.Indent()
b.Line("Remove-Item -Force " + path)
b.Unindent()
b.Line("}")
b.Line("")
}
func (b *PsWriter) Print(format string, arguments ...interface{}) {
coloredText := helpers.ANSI_RESET + fmt.Sprintf(format, arguments...)
b.Line("echo " + psQuoteVariable(coloredText))
}
func (b *PsWriter) Notice(format string, arguments ...interface{}) {
coloredText := helpers.ANSI_BOLD_GREEN + fmt.Sprintf(format, arguments...) + helpers.ANSI_RESET
b.Line("echo " + psQuoteVariable(coloredText))
}
func (b *PsWriter) Warning(format string, arguments ...interface{}) {
coloredText := helpers.ANSI_YELLOW + fmt.Sprintf(format, arguments...) + helpers.ANSI_RESET
b.Line("echo " + psQuoteVariable(coloredText))
}
func (b *PsWriter) Error(format string, arguments ...interface{}) {
coloredText := helpers.ANSI_BOLD_RED + fmt.Sprintf(format, arguments...) + helpers.ANSI_RESET
b.Line("echo " + psQuoteVariable(coloredText))
}
func (b *PsWriter) EmptyLine() {
b.Line("echo \"\"")
}
func (b *PsWriter) Absolute(dir string) string {
if filepath.IsAbs(dir) {
return dir
}
b.Line("$CurrentDirectory = (Resolve-Path .\\).Path")
return filepath.Join("$CurrentDirectory", dir)
}
func (b *PsWriter) Finish(trace bool) string {
var buffer bytes.Buffer
w := bufio.NewWriter(&buffer)
// write BOM
io.WriteString(w, "\xef\xbb\xbf")
if trace {
io.WriteString(w, "Set-PSDebug -Trace 2\r\n")
}
io.WriteString(w, b.String())
w.Flush()
return buffer.String()
}
func (b *PowerShell) GetName() string {
return "powershell"
}
func (b *PowerShell) GetConfiguration(info common.ShellScriptInfo) (script *common.ShellConfiguration, err error) {
script = &common.ShellConfiguration{
Command: "powershell",
Arguments: []string{"-noprofile", "-noninteractive", "-executionpolicy", "Bypass", "-command"},
PassFile: true,
Extension: "ps1",
}
return
}
func (b *PowerShell) GenerateScript(buildStage common.BuildStage, info common.ShellScriptInfo) (script string, err error) {
w := &PsWriter{
TemporaryPath: info.Build.FullProjectDir() + ".tmp",
}
if buildStage == common.BuildStagePrepare {
if len(info.Build.Hostname) != 0 {
w.Line("echo \"Running on $env:computername via " + psQuoteVariable(info.Build.Hostname) + "...\"")
} else {
w.Line("echo \"Running on $env:computername...\"")
}
}
err = b.writeScript(w, buildStage, info)
script = w.Finish(info.Build.IsDebugTraceEnabled())
return
}
func (b *PowerShell) IsDefault() bool {
return false
}
func init() {
common.RegisterShell(&PowerShell{})
}