xctrace support

Cargo.toml

@@ -33,6 +33,7 @@ itoa = "1"
 log = "0.4"
 num-format = { version = "0.4.3", default-features = false }
 quick-xml = { version = "0.26", default-features = false }
+quick-xml_28 = { package = "quick-xml", version = "0.28.1", default-features = false }
 rgb = "0.8.13"
 str_stack = "0.1"
 clap = { version = "4.0.1", optional = true, features = ["derive"] }
@@ -82,6 +83,11 @@ name = "inferno-collapse-dtrace"
 path = "src/bin/collapse-dtrace.rs"
 required-features = ["cli"]
 
+[[bin]]
+name = "inferno-collapse-xctrace"
+path = "src/bin/collapse-xctrace.rs"
+required-features = ["cli"]
+
 [[bin]]
 name = "inferno-collapse-sample"
 path = "src/bin/collapse-sample.rs"

src/bin/collapse-xctrace.rs

@@ -0,0 +1,55 @@
+use std::io;
+use std::path::PathBuf;
+
+use clap::{ArgAction, Parser};
+use env_logger::Env;
+use inferno::collapse::xctrace::Folder;
+use inferno::collapse::Collapse;
+
+#[derive(Debug, Parser)]
+#[clap(
+    name = "inferno-collapse-xctrace",
+    about,
+    after_help = r#"\
+[1] This processes the result of the xctrace with `Timer Profiler` profile as run with:
+        `xctrace record --template 'Time Profiler' --launch <executable> --output tmp.trace`
+    or
+        `xctrace record --template 'Time Profiler' --attach <pid|proc_name> --output tmp.trace`
+    then
+        xctrace export --input tmp.trace --xpath '/trace-toc/run[@number="1"]/data/table[@schema="time-profile"]' > tmp.xml
+    "#
+)]
+struct Opt {
+    /// Silence all log output
+    #[clap(short = 'q', long = "quiet")]
+    quiet: bool,
+
+    /// Verbose logging mode (-v, -vv, -vvv)
+    #[clap(short = 'v', long = "verbose", action = ArgAction::Count)]
+    verbose: u8,
+
+    // ************ //
+    // *** ARGS *** //
+    // ************ //
+    /// xctrace output file, or STDIN if not specified
+    #[clap(value_name = "PATH")]
+    infile: Option<PathBuf>,
+}
+
+fn main() -> io::Result<()> {
+    let opt = Opt::parse();
+
+    // Initialize logger
+    if !opt.quiet {
+        env_logger::Builder::from_env(Env::default().default_filter_or(match opt.verbose {
+            0 => "warn",
+            1 => "info",
+            2 => "debug",
+            _ => "trace",
+        }))
+        .format_timestamp(None)
+        .init();
+    }
+
+    Folder.collapse_file_to_stdout(opt.infile.as_ref())
+}

src/collapse/mod.rs

@@ -42,6 +42,13 @@ pub mod vtune;
 ///   [crate-level documentation]: ../../index.html
 pub mod vsprof;
 
+/// Stack collapsing for the output of the [xctrace](https://developer.apple.com/xcode/features/).
+///
+/// See the [crate-level documentation] for details.
+///
+///   [crate-level documentation]: ../../index.html
+pub mod xctrace;
+
 use is_terminal::IsTerminal;
 
 // DEFAULT_NTHREADS is public because we use it in the help text of the binaries,