Added --stdin-data argument

This argument accepts a path to a file. The data contained in the file will be passed to the command via stdin.

Closes sharkdp/hyperfine#541

src/benchmark/executor.rs

@@ -1,7 +1,7 @@
 use std::process::{ExitStatus, Stdio};
 
 use crate::command::Command;
-use crate::options::{CmdFailureAction, CommandOutputPolicy, Options, OutputStyleOption, Shell};
+use crate::options::{CmdFailureAction, CommandInputPolicy, CommandOutputPolicy, Options, OutputStyleOption, Shell};
 use crate::output::progress_bar::get_progress_bar;
 use crate::timer::{execute_and_measure, TimerResult};
 use crate::util::randomized_environment_offset;
@@ -36,11 +36,13 @@ pub trait Executor {
 fn run_command_and_measure_common(
     mut command: std::process::Command,
     command_failure_action: CmdFailureAction,
+    command_input_policy: &CommandInputPolicy,
     command_output_policy: &CommandOutputPolicy,
     command_name: &str,
 ) -> Result<TimerResult> {
     let (stdout, stderr) = command_output_policy.get_stdout_stderr()?;
-    command.stdin(Stdio::null()).stdout(stdout).stderr(stderr);
+    let stdin = command_input_policy.get_stdin()?;
+    command.stdin(stdin).stdout(stdout).stderr(stderr);
 
     command.env(
         "HYPERFINE_RANDOMIZED_ENVIRONMENT_OFFSET",
@@ -83,6 +85,7 @@ impl<'a> Executor for RawExecutor<'a> {
         let result = run_command_and_measure_common(
             command.get_command()?,
             command_failure_action.unwrap_or(self.options.command_failure_action),
+            &self.options.command_input_policy,
             &self.options.command_output_policy,
             &command.get_command_line(),
         )?;
@@ -142,6 +145,7 @@ impl<'a> Executor for ShellExecutor<'a> {
         let mut result = run_command_and_measure_common(
             command_builder,
             command_failure_action.unwrap_or(self.options.command_failure_action),
+            &self.options.command_input_policy,
             &self.options.command_output_policy,
             &command.get_command_line(),
         )?;