cargo xtask is now ~40x faster

ci/expected/baseline.run

@@ -1,4 +0,0 @@
-init(baseline = Instant(0))
-foo(baseline = Instant(0))
-UART0(baseline = Instant(904))
-foo(baseline = Instant(904))

ci/expected/cfg.run

@@ -1,2 +0,0 @@
-foo has been called 1 time
-foo has been called 2 times

ci/expected/late.run

@@ -1 +0,0 @@
-received message: 42

ci/expected/ramfunc.grep.bar

@@ -1 +0,0 @@
-20000000 t ramfunc::bar::h9d6714fe5a3b0c89

ci/expected/ramfunc.grep.foo

@@ -1 +0,0 @@
-00000162 t ramfunc::foo::h30e7789b08c08e19

ci/expected/resource.run

@@ -1,2 +0,0 @@
-UART1: local_to_uart1 = 1
-UART0: local_to_uart0 = 1

ci/expected/singleton.run

@@ -1,2 +0,0 @@
-bar(2)
-foo(1)

xtask/src/build.rs

@@ -1,9 +1,4 @@
-use std::{
+use std::{fs, path::Path};
-    fs,
-    path::{Path, PathBuf},
-};
-
-use crate::{command::BuildMode, TestRunError};
 
 const HEX_BUILD_ROOT: &str = "ci/builds";
 
@@ -16,38 +11,3 @@ pub fn init_build_dir() -> anyhow::Result<()> {
     fs::create_dir_all(HEX_BUILD_ROOT)
         .map_err(|_| anyhow::anyhow!("Could not create directory:  {}", HEX_BUILD_ROOT))
 }
-
-pub fn build_hexpath(
-    example: &str,
-    features: Option<&str>,
-    build_mode: BuildMode,
-    build_num: u32,
-) -> anyhow::Result<String> {
-    let features = match features {
-        Some(f) => f,
-        None => "",
-    };
-
-    let filename = format!("{}_{}_{}_{}.hex", example, features, build_mode, build_num);
-
-    let mut path = PathBuf::from(HEX_BUILD_ROOT);
-    path.push(filename);
-
-    path.into_os_string()
-        .into_string()
-        .map_err(|e| anyhow::Error::new(TestRunError::PathConversionError(e)))
-}
-
-pub fn compare_builds(expected: String, got: String) -> anyhow::Result<()> {
-    let buf_1 = std::fs::read_to_string(expected.clone())?;
-    let buf_2 = std::fs::read_to_string(got.clone())?;
-
-    if buf_1 != buf_2 {
-        return Err(anyhow::Error::new(TestRunError::FileCmpError {
-            expected,
-            got,
-        }));
-    }
-
-    Ok(())
-}

xtask/src/command.rs

@@ -1,7 +1,7 @@
 use crate::{RunResult, TestRunError};
 use core::fmt;
 use os_pipe::pipe;
-use std::{fs::File, io::Read, path::Path, process::Command};
+use std::{fs::File, io::Read, process::Command};
 
 #[allow(dead_code)]
 #[derive(Debug, Clone, Copy, PartialEq)]
@@ -18,32 +18,23 @@ pub enum CargoCommand<'a> {
         features: Option<&'a str>,
         mode: BuildMode,
     },
-    Build {
+    BuildAll {
-        example: &'a str,
         target: &'a str,
         features: Option<&'a str>,
         mode: BuildMode,
     },
-    Objcopy {
+    // Size {
-        example: &'a str,
+    //     example_paths: Vec<&'a Path>,
-        target: &'a str,
+    // },
-        features: Option<&'a str>,
+    // Clean,
-        ihex: &'a str,
-    },
-    Size {
-        example_paths: Vec<&'a Path>,
-    },
-    Clean,
 }
 
 impl<'a> CargoCommand<'a> {
     fn name(&self) -> &str {
         match self {
             CargoCommand::Run { .. } => "run",
-            CargoCommand::Size { example_paths: _ } => "rust-size",
+            // CargoCommand::Size { example_paths: _ } => "rust-size",
-            CargoCommand::Clean => "clean",
+            CargoCommand::BuildAll { .. } => "build",
-            CargoCommand::Build { .. } => "build",
-            CargoCommand::Objcopy { .. } => "objcopy",
         }
     }
 
@@ -54,12 +45,6 @@ impl<'a> CargoCommand<'a> {
                 target,
                 features,
                 mode,
-            }
-            | CargoCommand::Build {
-                example,
-                target,
-                features,
-                mode,
             } => {
                 let mut args = vec![self.name(), "--example", example, "--target", target];
 
@@ -71,26 +56,23 @@ impl<'a> CargoCommand<'a> {
                 }
                 args
             }
-            CargoCommand::Size { example_paths } => {
+            CargoCommand::BuildAll {
-                example_paths.iter().map(|p| p.to_str().unwrap()).collect()
-            }
-            CargoCommand::Clean => vec!["clean"],
-            CargoCommand::Objcopy {
-                example,
                 target,
                 features,
-                ihex,
+                mode,
             } => {
-                let mut args = vec![self.name(), "--example", example, "--target", target];
+                let mut args = vec![self.name(), "--examples", "--target", target];
 
                 if let Some(feature_name) = features {
                     args.extend_from_slice(&["--features", feature_name]);
                 }
-
+                if let Some(flag) = mode.to_flag() {
-                // this always needs to go at the end
+                    args.push(flag);
-                args.extend_from_slice(&["--", "-O", "ihex", ihex]);
+                }
                 args
-            }
+            } // CargoCommand::Size { example_paths } => {
+              //     example_paths.iter().map(|p| p.to_str().unwrap()).collect()
+              // }
         }
     }
 
@@ -99,7 +81,7 @@ impl<'a> CargoCommand<'a> {
             // we need to cheat a little here:
             // `cargo size` can't be ran on multiple files, so we're using `rust-size` instead –
             // which isn't a command that starts wizh `cargo`. So we're sneakily swapping them out :)
-            CargoCommand::Size { .. } => "rust-size",
+            // CargoCommand::Size { .. } => "rust-size",
             _ => "cargo",
         }
     }

xtask/src/main.rs

@@ -14,7 +14,7 @@ use std::{
 use structopt::StructOpt;
 
 use crate::{
-    build::{build_hexpath, compare_builds, init_build_dir},
+    build::init_build_dir,
     command::{run_command, run_successful, BuildMode, CargoCommand},
 };
 
@@ -93,25 +93,6 @@ fn main() -> anyhow::Result<()> {
         })
         .collect();
 
-    // let examples = &[
-    //     "idle",
-    //     "init",
-    //     "hardware",
-    //     "preempt",
-    //     "binds",
-    //     "lock",
-    //     "multilock",
-    //     "only-shared-access",
-    //     "task",
-    //     "message",
-    //     "capacity",
-    //     "not-sync",
-    //     "generics",
-    //     "pool",
-    //     "ramfunc",
-    //     "peripherals-taken",
-    // ];
-
     let opts = Options::from_args();
     let target = &opts.target;
 
@@ -120,11 +101,9 @@ fn main() -> anyhow::Result<()> {
     if target == "all" {
         for t in targets {
             run_test(t, &examples)?;
-            build_test(t, &examples)?;
         }
     } else if targets.contains(&target.as_str()) {
         run_test(&target, &examples)?;
-        build_test(&target, &examples)?;
     } else {
         eprintln!(
             "The target you specified is not available. Available targets are:\
@@ -139,6 +118,12 @@ fn main() -> anyhow::Result<()> {
 }
 
 fn run_test(target: &str, examples: &[String]) -> anyhow::Result<()> {
+    arm_example(&CargoCommand::BuildAll {
+        target,
+        features: None,
+        mode: BuildMode::Release,
+    })?;
+
     for example in examples {
         let cmd = CargoCommand::Run {
             example,
@@ -147,37 +132,16 @@ fn run_test(target: &str, examples: &[String]) -> anyhow::Result<()> {
             mode: BuildMode::Release,
         };
 
-        arm_example(&cmd, 1)?;
+        arm_example(&cmd)?;
-
-        arm_example(
-            &CargoCommand::Build {
-                example,
-                target,
-                features: None,
-                mode: BuildMode::Release,
-            },
-            1,
-        )?;
     }
 
     Ok(())
 }
 
 // run example binary `example`
-fn arm_example(command: &CargoCommand, build_num: u32) -> anyhow::Result<()> {
+fn arm_example(command: &CargoCommand) -> anyhow::Result<()> {
     match *command {
-        CargoCommand::Run {
+        CargoCommand::Run { example, .. } => {
-            example,
-            target,
-            features,
-            mode,
-        }
-        | CargoCommand::Build {
-            example,
-            target,
-            features,
-            mode,
-        } => {
             let run_file = format!("{}.run", example);
             let expected_output_file = ["ci", "expected", &run_file]
                 .iter()
@@ -197,77 +161,14 @@ fn arm_example(command: &CargoCommand, build_num: u32) -> anyhow::Result<()> {
                 _ => (),
             }
 
-            // now, prepare to objcopy
-            let hexpath = build_hexpath(example, features, mode, build_num)?;
-
-            run_command(&CargoCommand::Objcopy {
-                example,
-                target,
-                features,
-                ihex: &hexpath,
-            })?;
-
             Ok(())
         }
-        _ => Err(anyhow::Error::new(TestRunError::IncompatibleCommand)),
+        CargoCommand::BuildAll { .. } => {
+            // command is either build or run
+            let cargo_run_result = run_command(&command)?;
+            println!("{}", cargo_run_result.output);
+
+            Ok(())
+        } // _ => Err(anyhow::Error::new(TestRunError::IncompatibleCommand)),
     }
 }
-
-fn build_test(target: &str, examples: &[String]) -> anyhow::Result<()> {
-    run_command(&CargoCommand::Clean)?;
-
-    let mut built = vec![];
-    let build_path: PathBuf = ["target", target, "release", "examples"].iter().collect();
-
-    for example in examples {
-        let no_features = None;
-        arm_example(
-            &CargoCommand::Build {
-                target,
-                example,
-                mode: BuildMode::Release,
-                features: no_features,
-            },
-            2,
-        )?;
-        let expected = build_hexpath(example, no_features, BuildMode::Release, 1)?;
-        let got = build_hexpath(example, no_features, BuildMode::Release, 2)?;
-
-        compare_builds(expected, got)?;
-
-        arm_example(
-            &CargoCommand::Build {
-                target,
-                example,
-                mode: BuildMode::Release,
-                features: no_features,
-            },
-            2,
-        )?;
-        let expected = build_hexpath(example, no_features, BuildMode::Release, 1)?;
-        let got = build_hexpath(example, no_features, BuildMode::Release, 2)?;
-
-        compare_builds(expected, got)?;
-
-        built.push(build_path.join(example));
-    }
-
-    let example_paths: Vec<&Path> = built.iter().map(|p| p.as_path()).collect();
-    let size_run_result = run_command(&CargoCommand::Size { example_paths })?;
-
-    if size_run_result.exit_status.success() {
-        println!("{}", size_run_result.output);
-    }
-
-    Ok(())
-}
-
-// /// Check if lines in `output` contain `pattern` and print matching lines
-// fn print_from_output(pattern: &str, lines: &str) {
-//     let lines = lines.split("\n");
-//     for line in lines {
-//         if line.contains(pattern) {
-//             println!("{}", line);
-//         }
-//     }
-// }