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9edaa1e0c3
currently if we don't know the shell we just assume posix.
this adds a small test, to ensure it is and fail gracefully before doing weird stuff.
## Test Conf
```yaml
skip_clone: true
steps:
build:
image: "true"
commands:
- echo "building..."
```
106 lines
3.2 KiB
Go
106 lines
3.2 KiB
Go
// Copyright 2023 Woodpecker Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// cSpell:ignore ERRORLEVEL
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package local
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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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"al.essio.dev/pkg/shellescape"
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)
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func (e *local) genCmdByShell(shell string, cmdList []string) (args []string, err error) {
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if len(cmdList) == 0 {
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return nil, ErrNoCmdSet
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}
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script := ""
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for _, cmd := range cmdList {
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script += fmt.Sprintf("echo %s\n%s\n", strings.TrimSpace(shellescape.Quote("+ "+cmd)), cmd)
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}
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script = strings.TrimSpace(script)
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shell = strings.TrimSuffix(strings.ToLower(shell), ".exe")
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switch shell {
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default:
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// assume posix shell
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if err := probeShellIsPosix(shell); err != nil {
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return nil, err
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}
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fallthrough
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// normal posix shells
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case "sh", "bash", "zsh":
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return []string{"-e", "-c", script}, nil
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case "":
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return nil, ErrNoShellSet
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case "cmd":
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script := "@SET PROMPT=$\n"
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for _, cmd := range cmdList {
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quotedCmd := strings.TrimSpace(shellescape.Quote(cmd))
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// As cmd echo does not allow strings with newlines we need to replace them ...
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quotedCmd = strings.ReplaceAll(quotedCmd, "\n", "\\n")
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// Also the shellescape.Quote fail with any | or & char and wrapping them in quotes again can be bypassed
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// by just leaving an string halve quoted we just replace them with symbolic representations
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quotedCmd = strings.ReplaceAll(quotedCmd, "&", "\\AND")
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quotedCmd = strings.ReplaceAll(quotedCmd, "|", "\\OR")
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script += fmt.Sprintf("@echo + %s\n", quotedCmd)
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script += fmt.Sprintf("@%s\n", cmd)
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script += "@IF NOT %ERRORLEVEL% == 0 exit %ERRORLEVEL%\n"
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}
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cmd, err := os.CreateTemp(e.tempDir, "*.cmd")
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if err != nil {
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return nil, err
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}
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defer cmd.Close()
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if _, err := cmd.WriteString(script); err != nil {
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return nil, err
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}
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return []string{"/c", cmd.Name()}, nil
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case "fish":
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script := ""
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for _, cmd := range cmdList {
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script += fmt.Sprintf("echo %s\n%s || exit $status\n", strings.TrimSpace(shellescape.Quote("+ "+cmd)), cmd)
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}
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return []string{"-c", script}, nil
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case "nu":
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return []string{"--commands", script}, nil
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case "powershell", "pwsh":
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// cspell:disable-next-line
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return []string{"-noprofile", "-noninteractive", "-c", "$ErrorActionPreference = \"Stop\"; " + script}, nil
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}
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}
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// before we generate a generic posix shell we test.
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func probeShellIsPosix(shell string) error {
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script := `x=1 && [ "$x" = "1" ] && command -v test >/dev/null && printf ok`
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cmd := exec.Command(shell, "-c", script)
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output, err := cmd.CombinedOutput()
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if err != nil {
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return &ErrNoPosixShell{Shell: shell, Err: err}
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}
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if strings.TrimSpace(string(output)) != "ok" {
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return &ErrNoPosixShell{Shell: shell, Err: fmt.Errorf("unexpected output returned: %q", string(output))}
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}
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return nil
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}
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