664 lines
22 KiB
Rust
664 lines
22 KiB
Rust
use process_control::{ChildExt, Timeout};
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use starship_cache::{Cache, CachedOutput};
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use std::convert::TryInto;
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use std::fmt::Debug;
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use std::fs::read_to_string;
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use std::io::Result;
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use std::path::{Path, PathBuf};
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use std::process::{Command, Stdio};
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use std::time::{Duration, Instant};
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use crate::context::Shell;
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/// Return the string contents of a file
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pub fn read_file<P: AsRef<Path> + Debug>(file_name: P) -> Result<String> {
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log::trace!("Trying to read from {:?}", file_name);
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let result = read_to_string(file_name);
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if result.is_err() {
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log::debug!("Error reading file: {:?}", result);
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} else {
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log::trace!("File read sucessfully");
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};
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result
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}
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#[derive(Debug, Clone)]
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pub struct CommandOutput {
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pub stdout: String,
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pub stderr: String,
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}
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impl PartialEq for CommandOutput {
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fn eq(&self, other: &Self) -> bool {
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self.stdout == other.stdout && self.stderr == other.stderr
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}
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}
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impl From<CommandOutput> for CachedOutput {
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fn from(output: CommandOutput) -> Self {
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Self {
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stdout: output.stdout.into_bytes(),
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stderr: output.stderr.into_bytes(),
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status: Some(0),
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}
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}
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}
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/// Execute a command and return the output on stdout and stderr if successful
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#[cfg(not(test))]
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pub fn exec_cmd(cmd: &str, args: &[&str], time_limit: Duration) -> Option<CommandOutput> {
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internal_exec_cmd(&cmd, &args, time_limit)
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}
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#[cfg(test)]
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pub fn exec_cmd(cmd: &str, args: &[&str], time_limit: Duration) -> Option<CommandOutput> {
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let command = match args.len() {
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0 => String::from(cmd),
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_ => format!("{} {}", cmd, args.join(" ")),
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};
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match command.as_str() {
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"crystal --version" => Some(CommandOutput {
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stdout: String::from(
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"\
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Crystal 0.35.1 (2020-06-19)
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LLVM: 10.0.0
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Default target: x86_64-apple-macosx\n",
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),
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stderr: String::default(),
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}),
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"dart --version" => Some(CommandOutput {
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stdout: String::default(),
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stderr: String::from(
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"Dart VM version: 2.8.4 (stable) (Wed Jun 3 12:26:04 2020 +0200) on \"macos_x64\"",
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),
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}),
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"deno -V" => Some(CommandOutput {
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stdout: String::from("deno 1.8.3\n"),
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stderr: String::default()
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}),
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"dummy_command" => Some(CommandOutput {
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stdout: String::from("stdout ok!\n"),
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stderr: String::from("stderr ok!\n"),
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}),
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"elixir --version" => Some(CommandOutput {
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stdout: String::from(
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"\
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Erlang/OTP 22 [erts-10.6.4] [source] [64-bit] [smp:8:8] [ds:8:8:10] [async-threads:1] [hipe]
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Elixir 1.10 (compiled with Erlang/OTP 22)\n",
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),
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stderr: String::default(),
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}),
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"elm --version" => Some(CommandOutput {
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stdout: String::from("0.19.1\n"),
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stderr: String::default(),
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}),
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"go version" => Some(CommandOutput {
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stdout: String::from("go version go1.12.1 linux/amd64\n"),
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stderr: String::default(),
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}),
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"helm version --short --client" => Some(CommandOutput {
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stdout: String::from("v3.1.1+gafe7058\n"),
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stderr: String::default(),
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}),
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s if s.ends_with("java -Xinternalversion") => Some(CommandOutput {
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stdout: String::from("OpenJDK 64-Bit Server VM (13.0.2+8) for bsd-amd64 JRE (13.0.2+8), built on Feb 6 2020 02:07:52 by \"brew\" with clang 4.2.1 Compatible Apple LLVM 11.0.0 (clang-1100.0.33.17)"),
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stderr: String::default(),
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}),
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"scalac -version" => Some(CommandOutput {
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stdout: String::from("Scala compiler version 2.13.5 -- Copyright 2002-2020, LAMP/EPFL and Lightbend, Inc."),
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stderr: String::default(),
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}),
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"julia --version" => Some(CommandOutput {
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stdout: String::from("julia version 1.4.0\n"),
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stderr: String::default(),
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}),
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"kotlin -version" => Some(CommandOutput {
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stdout: String::from("Kotlin version 1.4.21-release-411 (JRE 14.0.1+7)\n"),
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stderr: String::default(),
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}),
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"kotlinc -version" => Some(CommandOutput {
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stdout: String::from("info: kotlinc-jvm 1.4.21 (JRE 14.0.1+7)\n"),
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stderr: String::default(),
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}),
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"lua -v" => Some(CommandOutput{
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stdout: String::from("Lua 5.4.0 Copyright (C) 1994-2020 Lua.org, PUC-Rio\n"),
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stderr: String::default(),
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}),
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"luajit -v" => Some(CommandOutput{
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stdout: String::from("LuaJIT 2.0.5 -- Copyright (C) 2005-2017 Mike Pall. http://luajit.org/\n"),
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stderr: String::default(),
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}),
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"nim --version" => Some(CommandOutput {
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stdout: String::from(
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"\
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Nim Compiler Version 1.2.0 [Linux: amd64]
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Compiled at 2020-04-03
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Copyright (c) 2006-2020 by Andreas Rumpf
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git hash: 7e83adff84be5d0c401a213eccb61e321a3fb1ff
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active boot switches: -d:release\n",
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),
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stderr: String::default(),
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}),
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"node --version" => Some(CommandOutput {
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stdout: String::from("v12.0.0\n"),
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stderr: String::default(),
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}),
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"ocaml -vnum" => Some(CommandOutput {
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stdout: String::from("4.10.0\n"),
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stderr: String::default(),
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}),
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"opam switch show --safe" => Some(CommandOutput {
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stdout: String::from("default\n"),
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stderr: String::default(),
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}),
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"esy ocaml -vnum" => Some(CommandOutput {
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stdout: String::from("4.08.1\n"),
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stderr: String::default(),
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}),
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"perl -e printf q#%vd#,$^V;" => Some(CommandOutput {
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stdout: String::from("5.26.1"),
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stderr: String::default(),
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}),
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"php -nr echo PHP_MAJOR_VERSION.\".\".PHP_MINOR_VERSION.\".\".PHP_RELEASE_VERSION;" => {
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Some(CommandOutput {
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stdout: String::from("7.3.8"),
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stderr: String::default(),
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})
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}
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"purs --version" => Some(CommandOutput {
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stdout: String::from("0.13.5\n"),
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stderr: String::default(),
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}),
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"pyenv version-name" => Some(CommandOutput {
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stdout: String::from("system\n"),
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stderr: String::default(),
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}),
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"python --version" => None,
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"python2 --version" => Some(CommandOutput {
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stdout: String::default(),
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stderr: String::from("Python 2.7.17\n"),
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}),
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"python3 --version" => Some(CommandOutput {
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stdout: String::from("Python 3.8.0\n"),
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stderr: String::default(),
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}),
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"R --version" => Some(CommandOutput {
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stdout: String::default(),
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stderr: String::from(
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r#"R version 4.1.0 (2021-05-18) -- "Camp Pontanezen"
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Copyright (C) 2021 The R Foundation for Statistical Computing
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Platform: x86_64-w64-mingw32/x64 (64-bit)\n
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R is free software and comes with ABSOLUTELY NO WARRANTY.
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You are welcome to redistribute it under the terms of the
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GNU General Public License versions 2 or 3.
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For more information about these matters see
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https://www.gnu.org/licenses/."#
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),
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}),
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"red --version" => Some(CommandOutput {
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stdout: String::from("0.6.4\n"),
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stderr: String::default()
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}),
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"ruby -v" => Some(CommandOutput {
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stdout: String::from("ruby 2.5.1p57 (2018-03-29 revision 63029) [x86_64-linux-gnu]\n"),
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stderr: String::default(),
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}),
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"swift --version" => Some(CommandOutput {
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stdout: String::from(
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"\
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Apple Swift version 5.2.2 (swiftlang-1103.0.32.6 clang-1103.0.32.51)
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Target: x86_64-apple-darwin19.4.0\n",
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),
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stderr: String::default(),
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}),
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"vagrant --version" => Some(CommandOutput {
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stdout: String::from("Vagrant 2.2.10\n"),
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stderr: String::default(),
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}),
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"v version" => Some(CommandOutput {
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stdout: String::from("V 0.2 30c0659"),
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stderr: String::default()
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}),
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"zig version" => Some(CommandOutput {
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stdout: String::from("0.6.0\n"),
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stderr: String::default(),
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}),
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"cmake --version" => Some(CommandOutput {
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stdout: String::from(
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"\
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cmake version 3.17.3
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CMake suite maintained and supported by Kitware (kitware.com/cmake).\n",
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),
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stderr: String::default(),
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}),
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"dotnet --version" => Some(CommandOutput {
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stdout: String::from("3.1.103"),
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stderr: String::default(),
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}),
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"dotnet --list-sdks" => Some(CommandOutput {
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stdout: String::from("3.1.103 [/usr/share/dotnet/sdk]"),
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stderr: String::default(),
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}),
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"terraform version" => Some(CommandOutput {
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stdout: String::from("Terraform v0.12.14\n"),
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stderr: String::default(),
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}),
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s if s.starts_with("erl -noshell -eval") => Some(CommandOutput {
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stdout: String::from("22.1.3\n"),
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stderr: String::default(),
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}),
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// If we don't have a mocked command fall back to executing the command
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_ => internal_exec_cmd(&cmd, &args, time_limit),
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}
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}
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/// Wraps ANSI color escape sequences in the shell-appropriate wrappers.
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pub fn wrap_colorseq_for_shell(mut ansi: String, shell: Shell) -> String {
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// Bash might interepret baskslashes, backticks and $
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// see #658 for more details
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if shell == Shell::Bash {
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ansi = ansi.replace('\\', r"\\");
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ansi = ansi.replace('$', r"\$");
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ansi = ansi.replace('`', r"\`");
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}
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const ESCAPE_BEGIN: char = '\u{1b}';
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const ESCAPE_END: char = 'm';
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wrap_seq_for_shell(ansi, shell, ESCAPE_BEGIN, ESCAPE_END)
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}
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/// Many shells cannot deal with raw unprintable characters and miscompute the cursor position,
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/// leading to strange visual bugs like duplicated/missing chars. This function wraps a specified
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/// sequence in shell-specific escapes to avoid these problems.
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pub fn wrap_seq_for_shell(
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ansi: String,
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shell: Shell,
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escape_begin: char,
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escape_end: char,
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) -> String {
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const BASH_BEG: &str = "\u{5c}\u{5b}"; // \[
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const BASH_END: &str = "\u{5c}\u{5d}"; // \]
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const ZSH_BEG: &str = "\u{25}\u{7b}"; // %{
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const ZSH_END: &str = "\u{25}\u{7d}"; // %}
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const TCSH_BEG: &str = "\u{25}\u{7b}"; // %{
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const TCSH_END: &str = "\u{25}\u{7d}"; // %}
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// ANSI escape codes cannot be nested, so we can keep track of whether we're
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// in an escape or not with a single boolean variable
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let mut escaped = false;
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let final_string: String = ansi
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.chars()
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.map(|x| {
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if x == escape_begin && !escaped {
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escaped = true;
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match shell {
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Shell::Bash => format!("{}{}", BASH_BEG, escape_begin),
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Shell::Zsh => format!("{}{}", ZSH_BEG, escape_begin),
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Shell::Tcsh => format!("{}{}", TCSH_BEG, escape_begin),
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_ => x.to_string(),
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}
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} else if x == escape_end && escaped {
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escaped = false;
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match shell {
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Shell::Bash => format!("{}{}", escape_end, BASH_END),
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Shell::Zsh => format!("{}{}", escape_end, ZSH_END),
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Shell::Tcsh => format!("{}{}", escape_end, TCSH_END),
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_ => x.to_string(),
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}
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} else {
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x.to_string()
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}
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})
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.collect();
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final_string
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}
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fn internal_exec_cmd(cmd: &str, args: &[&str], time_limit: Duration) -> Option<CommandOutput> {
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log::trace!("Executing command {:?} with args {:?}", cmd, args);
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let cache_dir = std::env::var_os("STARSHIP_CACHE")
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.map(PathBuf::from)
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.unwrap_or_else(|| {
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dirs_next::home_dir()
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.expect("Unable to find home directory")
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.join(".cache/starship")
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});
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let mut cache = Cache::new(&cache_dir.join("bin-cache")).ok()?;
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log::debug!("Cache initialized: {:?}", &cache_dir);
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let full_path = match which::which(cmd) {
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Ok(full_path) => {
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log::trace!("Using {:?} as {:?}", full_path, cmd);
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full_path
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}
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Err(error) => {
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log::trace!("Unable to find {:?} in PATH, {:?}", cmd, error);
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return None;
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}
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};
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let start = Instant::now();
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let full_command = format!("{} {}", cmd, args.join(" "));
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if let Some(output) = cache.get(&full_path, &full_command) {
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log::info!("Retreived {:?} from cache: {:?}", full_command, output);
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let stdout_string = match String::from_utf8(output.stdout.clone()) {
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Ok(stdout) => stdout,
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Err(error) => {
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log::warn!("Unable to decode stdout: {:?}", error);
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return None;
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}
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};
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let stderr_string = match String::from_utf8(output.stderr.clone()) {
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Ok(stderr) => stderr,
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Err(error) => {
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log::warn!("Unable to decode stderr: {:?}", error);
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return None;
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}
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};
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return Some(CommandOutput {
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stdout: stdout_string,
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stderr: stderr_string,
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});
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}
|
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let process = match Command::new(&full_path)
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.args(args)
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.stderr(Stdio::piped())
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.stdout(Stdio::piped())
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.stdin(Stdio::null())
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.spawn()
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{
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Ok(process) => process,
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Err(error) => {
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log::info!("Unable to run {:?}, {:?}", cmd, error);
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return None;
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}
|
|
};
|
|
|
|
match process.with_output_timeout(time_limit).terminating().wait() {
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|
Ok(Some(output)) => {
|
|
let stdout_string = match String::from_utf8(output.stdout.clone()) {
|
|
Ok(stdout) => stdout,
|
|
Err(error) => {
|
|
log::warn!("Unable to decode stdout: {:?}", error);
|
|
return None;
|
|
}
|
|
};
|
|
let stderr_string = match String::from_utf8(output.stderr.clone()) {
|
|
Ok(stderr) => stderr,
|
|
Err(error) => {
|
|
log::warn!("Unable to decode stderr: {:?}", error);
|
|
return None;
|
|
}
|
|
};
|
|
|
|
cache.set(
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&full_path,
|
|
&full_command,
|
|
CachedOutput {
|
|
stdout: output.stdout,
|
|
stderr: output.stderr,
|
|
status: output
|
|
.status
|
|
.code()
|
|
.map(|i| i.try_into().unwrap_or_default()),
|
|
},
|
|
);
|
|
cache.write().unwrap_or_else(|e| {
|
|
log::warn!("Unable to write to binary cache: {}", e);
|
|
});
|
|
|
|
log::trace!(
|
|
"stdout: {:?}, stderr: {:?}, exit code: \"{:?}\", took {:?}",
|
|
stdout_string,
|
|
stderr_string,
|
|
output.status.code(),
|
|
start.elapsed()
|
|
);
|
|
|
|
if !output.status.success() {
|
|
return None;
|
|
}
|
|
|
|
Some(CommandOutput {
|
|
stdout: stdout_string,
|
|
stderr: stderr_string,
|
|
})
|
|
}
|
|
Ok(None) => {
|
|
log::warn!("Executing command {:?} timed out.", cmd);
|
|
log::warn!("You can set command_timeout in your config to a higher value to allow longer-running commands to keep executing.");
|
|
None
|
|
}
|
|
Err(error) => {
|
|
log::info!("Executing command {:?} failed by: {:?}", cmd, error);
|
|
None
|
|
}
|
|
}
|
|
}
|
|
|
|
// Render the time into a nice human-readable string
|
|
pub fn render_time(raw_millis: u128, show_millis: bool) -> String {
|
|
// Calculate a simple breakdown into days/hours/minutes/seconds/milliseconds
|
|
let (millis, raw_seconds) = (raw_millis % 1000, raw_millis / 1000);
|
|
let (seconds, raw_minutes) = (raw_seconds % 60, raw_seconds / 60);
|
|
let (minutes, raw_hours) = (raw_minutes % 60, raw_minutes / 60);
|
|
let (hours, days) = (raw_hours % 24, raw_hours / 24);
|
|
|
|
let components = [days, hours, minutes, seconds];
|
|
let suffixes = ["d", "h", "m", "s"];
|
|
|
|
let mut rendered_components: Vec<String> = components
|
|
.iter()
|
|
.zip(&suffixes)
|
|
.map(render_time_component)
|
|
.collect();
|
|
if show_millis || raw_millis < 1000 {
|
|
rendered_components.push(render_time_component((&millis, &"ms")));
|
|
}
|
|
rendered_components.join("")
|
|
}
|
|
|
|
/// Render a single component of the time string, giving an empty string if component is zero
|
|
fn render_time_component((component, suffix): (&u128, &&str)) -> String {
|
|
match component {
|
|
0 => String::new(),
|
|
n => format!("{}{}", n, suffix),
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::*;
|
|
|
|
#[test]
|
|
fn test_500ms() {
|
|
assert_eq!(render_time(500_u128, true), "500ms")
|
|
}
|
|
#[test]
|
|
fn test_10s() {
|
|
assert_eq!(render_time(10_000_u128, true), "10s")
|
|
}
|
|
#[test]
|
|
fn test_90s() {
|
|
assert_eq!(render_time(90_000_u128, true), "1m30s")
|
|
}
|
|
#[test]
|
|
fn test_10110s() {
|
|
assert_eq!(render_time(10_110_000_u128, true), "2h48m30s")
|
|
}
|
|
#[test]
|
|
fn test_1d() {
|
|
assert_eq!(render_time(86_400_000_u128, true), "1d")
|
|
}
|
|
|
|
#[test]
|
|
fn exec_mocked_command() {
|
|
let result = exec_cmd("dummy_command", &[], Duration::from_millis(500));
|
|
let expected = Some(CommandOutput {
|
|
stdout: String::from("stdout ok!\n"),
|
|
stderr: String::from("stderr ok!\n"),
|
|
});
|
|
|
|
assert_eq!(result, expected)
|
|
}
|
|
|
|
// While the exec_cmd should work on Windows some of these tests assume a Unix-like
|
|
// environment.
|
|
|
|
#[test]
|
|
#[cfg(not(windows))]
|
|
fn exec_no_output() {
|
|
let result = internal_exec_cmd("true", &[], Duration::from_millis(500));
|
|
let expected = Some(CommandOutput {
|
|
stdout: String::from(""),
|
|
stderr: String::from(""),
|
|
});
|
|
|
|
assert_eq!(result, expected)
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(not(windows))]
|
|
fn exec_with_output_stdout() {
|
|
let result =
|
|
internal_exec_cmd("/bin/sh", &["-c", "echo hello"], Duration::from_millis(500));
|
|
let expected = Some(CommandOutput {
|
|
stdout: String::from("hello\n"),
|
|
stderr: String::from(""),
|
|
});
|
|
|
|
assert_eq!(result, expected)
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(not(windows))]
|
|
fn exec_with_output_stderr() {
|
|
let result = internal_exec_cmd(
|
|
"/bin/sh",
|
|
&["-c", "echo hello >&2"],
|
|
Duration::from_millis(500),
|
|
);
|
|
let expected = Some(CommandOutput {
|
|
stdout: String::from(""),
|
|
stderr: String::from("hello\n"),
|
|
});
|
|
|
|
assert_eq!(result, expected)
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(not(windows))]
|
|
fn exec_with_output_both() {
|
|
let result = internal_exec_cmd(
|
|
"/bin/sh",
|
|
&["-c", "echo hello; echo world >&2"],
|
|
Duration::from_millis(500),
|
|
);
|
|
let expected = Some(CommandOutput {
|
|
stdout: String::from("hello\n"),
|
|
stderr: String::from("world\n"),
|
|
});
|
|
|
|
assert_eq!(result, expected)
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(not(windows))]
|
|
fn exec_with_non_zero_exit_code() {
|
|
let result = internal_exec_cmd("false", &[], Duration::from_millis(500));
|
|
let expected = None;
|
|
|
|
assert_eq!(result, expected)
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(not(windows))]
|
|
fn exec_slow_command() {
|
|
let result = internal_exec_cmd("sleep", &["500"], Duration::from_millis(500));
|
|
let expected = None;
|
|
|
|
assert_eq!(result, expected)
|
|
}
|
|
|
|
#[test]
|
|
fn test_color_sequence_wrappers() {
|
|
let test0 = "\x1b2mhellomynamekeyes\x1b2m"; // BEGIN: \x1b END: m
|
|
let test1 = "\x1b]330;mlol\x1b]0m"; // BEGIN: \x1b END: m
|
|
let test2 = "\u{1b}J"; // BEGIN: \x1b END: J
|
|
let test3 = "OH NO"; // BEGIN: O END: O
|
|
let test4 = "herpaderp";
|
|
let test5 = "";
|
|
|
|
let zresult0 = wrap_seq_for_shell(test0.to_string(), Shell::Zsh, '\x1b', 'm');
|
|
let zresult1 = wrap_seq_for_shell(test1.to_string(), Shell::Zsh, '\x1b', 'm');
|
|
let zresult2 = wrap_seq_for_shell(test2.to_string(), Shell::Zsh, '\x1b', 'J');
|
|
let zresult3 = wrap_seq_for_shell(test3.to_string(), Shell::Zsh, 'O', 'O');
|
|
let zresult4 = wrap_seq_for_shell(test4.to_string(), Shell::Zsh, '\x1b', 'm');
|
|
let zresult5 = wrap_seq_for_shell(test5.to_string(), Shell::Zsh, '\x1b', 'm');
|
|
|
|
assert_eq!(&zresult0, "%{\x1b2m%}hellomynamekeyes%{\x1b2m%}");
|
|
assert_eq!(&zresult1, "%{\x1b]330;m%}lol%{\x1b]0m%}");
|
|
assert_eq!(&zresult2, "%{\x1bJ%}");
|
|
assert_eq!(&zresult3, "%{OH NO%}");
|
|
assert_eq!(&zresult4, "herpaderp");
|
|
assert_eq!(&zresult5, "");
|
|
|
|
let bresult0 = wrap_seq_for_shell(test0.to_string(), Shell::Bash, '\x1b', 'm');
|
|
let bresult1 = wrap_seq_for_shell(test1.to_string(), Shell::Bash, '\x1b', 'm');
|
|
let bresult2 = wrap_seq_for_shell(test2.to_string(), Shell::Bash, '\x1b', 'J');
|
|
let bresult3 = wrap_seq_for_shell(test3.to_string(), Shell::Bash, 'O', 'O');
|
|
let bresult4 = wrap_seq_for_shell(test4.to_string(), Shell::Bash, '\x1b', 'm');
|
|
let bresult5 = wrap_seq_for_shell(test5.to_string(), Shell::Bash, '\x1b', 'm');
|
|
|
|
assert_eq!(&bresult0, "\\[\x1b2m\\]hellomynamekeyes\\[\x1b2m\\]");
|
|
assert_eq!(&bresult1, "\\[\x1b]330;m\\]lol\\[\x1b]0m\\]");
|
|
assert_eq!(&bresult2, "\\[\x1bJ\\]");
|
|
assert_eq!(&bresult3, "\\[OH NO\\]");
|
|
assert_eq!(&bresult4, "herpaderp");
|
|
assert_eq!(&bresult5, "");
|
|
}
|
|
|
|
#[test]
|
|
fn test_bash_escape() {
|
|
let test = "$(echo a)";
|
|
assert_eq!(
|
|
wrap_colorseq_for_shell(test.to_owned(), Shell::Bash),
|
|
r"\$(echo a)"
|
|
);
|
|
assert_eq!(
|
|
wrap_colorseq_for_shell(test.to_owned(), Shell::PowerShell),
|
|
test
|
|
);
|
|
|
|
let test = r"\$(echo a)";
|
|
assert_eq!(
|
|
wrap_colorseq_for_shell(test.to_owned(), Shell::Bash),
|
|
r"\\\$(echo a)"
|
|
);
|
|
assert_eq!(
|
|
wrap_colorseq_for_shell(test.to_owned(), Shell::PowerShell),
|
|
test
|
|
);
|
|
|
|
let test = r"`echo a`";
|
|
assert_eq!(
|
|
wrap_colorseq_for_shell(test.to_owned(), Shell::Bash),
|
|
r"\`echo a\`"
|
|
);
|
|
assert_eq!(
|
|
wrap_colorseq_for_shell(test.to_owned(), Shell::PowerShell),
|
|
test
|
|
);
|
|
}
|
|
}
|