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Merge "sbox: report the script path instead of the full command line"

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This commit is contained in:
Colin Cross
2022-04-06 20:11:20 +00:00
committed by Gerrit Code Review
parent 07907127b9 40cade4b5b
commit 70b9a7e493
1 changed files with 12 additions and 13 deletions
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25
cmd/sbox/sbox.go
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@@ -203,23 +203,19 @@ func run() error {
// createCommandScript will create and return an exec.Cmd that runs rawCommand.
//
// rawCommand is executed via a script in the sandbox.
// tempDir is the temporary where the script is created.
// toDirInSandBox is the path containing the script in the sbox environment.
// toDirInSandBox is the path containing the script in the sbox environment.
// seed is a unique integer used to distinguish different scripts that might be at location.
// scriptPath is the temporary where the script is created.
// scriptPathInSandbox is the path to the script in the sbox environment.
//
// returns an exec.Cmd that can be ran from within sbox context if no error, or nil if error.
// caller must ensure script is cleaned up if function succeeds.
//
func createCommandScript(rawCommand string, tempDir, toDirInSandbox string, seed int) (*exec.Cmd, error) {
scriptName := fmt.Sprintf("sbox_command.%d.bash", seed)
scriptPathAndName := joinPath(tempDir, scriptName)
err := os.WriteFile(scriptPathAndName, []byte(rawCommand), 0644)
func createCommandScript(rawCommand, scriptPath, scriptPathInSandbox string) (*exec.Cmd, error) {
err := os.WriteFile(scriptPath, []byte(rawCommand), 0644)
if err != nil {
return nil, fmt.Errorf("failed to write command %s... to %s",
rawCommand[0:40], scriptPathAndName)
rawCommand[0:40], scriptPath)
}
return exec.Command("bash", joinPath(toDirInSandbox, filepath.Base(scriptName))), nil
return exec.Command("bash", scriptPathInSandbox), nil
}
// readManifest reads an sbox manifest from a textproto file.
@@ -289,7 +285,10 @@ func runCommand(command *sbox_proto.Command, tempDir string, commandIndex int) (
return "", err
}
cmd, err := createCommandScript(rawCommand, tempDir, pathToTempDirInSbox, commandIndex)
scriptName := fmt.Sprintf("sbox_command.%d.bash", commandIndex)
scriptPath := joinPath(tempDir, scriptName)
scriptPathInSandbox := joinPath(pathToTempDirInSbox, scriptName)
cmd, err := createCommandScript(rawCommand, scriptPath, scriptPathInSandbox)
if err != nil {
return "", err
}
@@ -327,9 +326,9 @@ func runCommand(command *sbox_proto.Command, tempDir string, commandIndex int) (
fmt.Fprintf(os.Stderr,
"The failing command was run inside an sbox sandbox in temporary directory\n"+
"%s\n"+
"The failing command line was:\n"+
"The failing command line can be found in\n"+
"%s\n",
tempDir, rawCommand)
tempDir, scriptPath)
}
// Write the command's combined stdout/stderr.