From 291ed260165c3298f7cebf231c24c00fdc942df3 Mon Sep 17 00:00:00 2001
From: Nicholas Bishop <nbishop@nbishop.net>
Date: Sat, 11 Nov 2023 22:20:47 -0500
Subject: [PATCH 1/9] xtask: Move run_cmd to util module

---
 xtask/src/main.rs | 11 +++--------
 xtask/src/util.rs | 17 +++++++++++++++++
 2 files changed, 20 insertions(+), 8 deletions(-)
 create mode 100644 xtask/src/util.rs

diff --git a/xtask/src/main.rs b/xtask/src/main.rs
index 1ffd801..5891049 100644
--- a/xtask/src/main.rs
+++ b/xtask/src/main.rs
@@ -6,22 +6,17 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+mod util;
+
 use std::env;
 use std::process::{exit, Command};
+use util::run_cmd;
 
 const FEAT_OPTIONS: [bool; 2] = [false, true];
 const FEAT_BYTEMUCK: &str = "bytemuck";
 const FEAT_SERDE: &str = "serde";
 const FEAT_STD: &str = "std";
 
-fn run_cmd(mut cmd: Command) {
-    println!("Running: {}", format!("{cmd:?}").replace('"', ""));
-    let status = cmd.status().expect("failed to launch");
-    if !status.success() {
-        panic!("command failed: {status}");
-    }
-}
-
 #[derive(Clone, Copy)]
 enum CargoAction {
     Test,
diff --git a/xtask/src/util.rs b/xtask/src/util.rs
new file mode 100644
index 0000000..9553a7d
--- /dev/null
+++ b/xtask/src/util.rs
@@ -0,0 +1,17 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use std::process::Command;
+
+pub fn run_cmd(mut cmd: Command) {
+    println!("Running: {}", format!("{cmd:?}").replace('"', ""));
+    let status = cmd.status().expect("failed to launch");
+    if !status.success() {
+        panic!("command failed: {status}");
+    }
+}

From 25c6f4d1bc560a8a64242141df73fe522d7a87bb Mon Sep 17 00:00:00 2001
From: Nicholas Bishop <nbishop@nbishop.net>
Date: Sat, 11 Nov 2023 22:24:31 -0500
Subject: [PATCH 2/9] xtask: Return Result from run_cmd

---
 Cargo.lock        | 9 +++++++++
 xtask/Cargo.toml  | 3 +++
 xtask/src/main.rs | 4 ++--
 xtask/src/util.rs | 9 ++++++---
 4 files changed, 20 insertions(+), 5 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index f3408d0..4376e0d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,6 +2,12 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "anyhow"
+version = "1.0.75"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4668cab20f66d8d020e1fbc0ebe47217433c1b6c8f2040faf858554e394ace6"
+
 [[package]]
 name = "basic-toml"
 version = "0.1.7"
@@ -246,3 +252,6 @@ checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 [[package]]
 name = "xtask"
 version = "0.0.0"
+dependencies = [
+ "anyhow",
+]
diff --git a/xtask/Cargo.toml b/xtask/Cargo.toml
index a6a4c0d..9634fb7 100644
--- a/xtask/Cargo.toml
+++ b/xtask/Cargo.toml
@@ -12,3 +12,6 @@ version = "0.0.0"
 edition = "2021"
 publish = false
 license = "MIT OR Apache-2.0"
+
+[dependencies]
+anyhow = "1.0.75"
diff --git a/xtask/src/main.rs b/xtask/src/main.rs
index 5891049..44a25a1 100644
--- a/xtask/src/main.rs
+++ b/xtask/src/main.rs
@@ -52,8 +52,8 @@ fn get_cargo_cmd(
 }
 
 fn test_package(package: &str, features: &[&str]) {
-    run_cmd(get_cargo_cmd(CargoAction::Lint, package, features));
-    run_cmd(get_cargo_cmd(CargoAction::Test, package, features));
+    run_cmd(get_cargo_cmd(CargoAction::Lint, package, features)).unwrap();
+    run_cmd(get_cargo_cmd(CargoAction::Test, package, features)).unwrap();
 }
 
 fn test_uguid() {
diff --git a/xtask/src/util.rs b/xtask/src/util.rs
index 9553a7d..c2ba171 100644
--- a/xtask/src/util.rs
+++ b/xtask/src/util.rs
@@ -6,12 +6,15 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+use anyhow::{bail, Result};
 use std::process::Command;
 
-pub fn run_cmd(mut cmd: Command) {
+pub fn run_cmd(mut cmd: Command) -> Result<()> {
     println!("Running: {}", format!("{cmd:?}").replace('"', ""));
     let status = cmd.status().expect("failed to launch");
-    if !status.success() {
-        panic!("command failed: {status}");
+    if status.success() {
+        Ok(())
+    } else {
+        bail!("command failed: {status}");
     }
 }

From 79303e7bdaf66b1006229fed63a7b4041435c3c3 Mon Sep 17 00:00:00 2001
From: Nicholas Bishop <nbishop@nbishop.net>
Date: Sat, 11 Nov 2023 22:36:36 -0500
Subject: [PATCH 3/9] xtask: Add get_cmd_stdout

---
 xtask/src/util.rs | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/xtask/src/util.rs b/xtask/src/util.rs
index c2ba171..43a9473 100644
--- a/xtask/src/util.rs
+++ b/xtask/src/util.rs
@@ -9,8 +9,12 @@
 use anyhow::{bail, Result};
 use std::process::Command;
 
-pub fn run_cmd(mut cmd: Command) -> Result<()> {
+fn print_cmd(cmd: &Command) {
     println!("Running: {}", format!("{cmd:?}").replace('"', ""));
+}
+
+pub fn run_cmd(mut cmd: Command) -> Result<()> {
+    print_cmd(&cmd);
     let status = cmd.status().expect("failed to launch");
     if status.success() {
         Ok(())
@@ -18,3 +22,13 @@ pub fn run_cmd(mut cmd: Command) -> Result<()> {
         bail!("command failed: {status}");
     }
 }
+
+pub fn get_cmd_stdout(mut cmd: Command) -> Result<Vec<u8>> {
+    print_cmd(&cmd);
+    let output = cmd.output().expect("failed to launch");
+    if output.status.success() {
+        Ok(output.stdout)
+    } else {
+        bail!("command failed: {}", output.status);
+    }
+}

From 9aebf2bcb002ed15491d38d18e8b6b0db04232af Mon Sep 17 00:00:00 2001
From: Nicholas Bishop <nbishop@nbishop.net>
Date: Sat, 11 Nov 2023 22:29:54 -0500
Subject: [PATCH 4/9] xtask: Add Package enum

---
 xtask/src/main.rs    | 14 ++++++++------
 xtask/src/package.rs | 26 ++++++++++++++++++++++++++
 2 files changed, 34 insertions(+), 6 deletions(-)
 create mode 100644 xtask/src/package.rs

diff --git a/xtask/src/main.rs b/xtask/src/main.rs
index 44a25a1..03ec87d 100644
--- a/xtask/src/main.rs
+++ b/xtask/src/main.rs
@@ -6,8 +6,10 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+mod package;
 mod util;
 
+use package::Package;
 use std::env;
 use std::process::{exit, Command};
 use util::run_cmd;
@@ -34,11 +36,11 @@ impl CargoAction {
 
 fn get_cargo_cmd(
     action: CargoAction,
-    package: &str,
+    package: Package,
     features: &[&str],
 ) -> Command {
     let mut cmd = Command::new("cargo");
-    cmd.args([action.as_str(), "--package", package]);
+    cmd.args([action.as_str(), "--package", package.name()]);
     if !features.is_empty() {
         cmd.args(["--features", &features.join(",")]);
     }
@@ -51,7 +53,7 @@ fn get_cargo_cmd(
     cmd
 }
 
-fn test_package(package: &str, features: &[&str]) {
+fn test_package(package: Package, features: &[&str]) {
     run_cmd(get_cargo_cmd(CargoAction::Lint, package, features)).unwrap();
     run_cmd(get_cargo_cmd(CargoAction::Test, package, features)).unwrap();
 }
@@ -71,7 +73,7 @@ fn test_uguid() {
                     features.push(FEAT_STD);
                 }
 
-                test_package("uguid", &features);
+                test_package(Package::Uguid, &features);
             }
         }
     }
@@ -88,7 +90,7 @@ fn test_gpt_disk_types() {
                 features.push(FEAT_STD);
             }
 
-            test_package("gpt_disk_types", &features);
+            test_package(Package::GptDiskTypes, &features);
         }
     }
 }
@@ -102,7 +104,7 @@ fn test_gpt_disk_io() {
     ];
 
     for features in feature_lists {
-        test_package("gpt_disk_io", &features);
+        test_package(Package::GptDiskIo, &features);
     }
 }
 
diff --git a/xtask/src/package.rs b/xtask/src/package.rs
new file mode 100644
index 0000000..389066d
--- /dev/null
+++ b/xtask/src/package.rs
@@ -0,0 +1,26 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+/// Public packages in the workspace.
+#[derive(Clone, Copy, Debug, Eq, PartialEq)]
+pub enum Package {
+    Uguid,
+    GptDiskTypes,
+    GptDiskIo,
+}
+
+impl Package {
+    /// Package name.
+    pub fn name(self) -> &'static str {
+        match self {
+            Self::Uguid => "uguid",
+            Self::GptDiskTypes => "gpt_disk_types",
+            Self::GptDiskIo => "gpt_disk_io",
+        }
+    }
+}

From 73f8cb7653809bfce69a097ed7b722b8f3f973b1 Mon Sep 17 00:00:00 2001
From: Nicholas Bishop <nbishop@nbishop.net>
Date: Sat, 11 Nov 2023 22:35:10 -0500
Subject: [PATCH 5/9] xtask: Add Package::publish_order

---
 xtask/src/package.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/xtask/src/package.rs b/xtask/src/package.rs
index 389066d..3a2812c 100644
--- a/xtask/src/package.rs
+++ b/xtask/src/package.rs
@@ -23,4 +23,10 @@ impl Package {
             Self::GptDiskIo => "gpt_disk_io",
         }
     }
+
+    /// The order in which to publish packages. Later packages depend on
+    /// earlier ones.
+    pub fn publish_order() -> &'static [Self] {
+        &[Self::Uguid, Self::GptDiskTypes, Self::GptDiskIo]
+    }
 }

From 3b6533eb8490f59b0adae541dd8ec840d935c28b Mon Sep 17 00:00:00 2001
From: Nicholas Bishop <nbishop@nbishop.net>
Date: Sat, 11 Nov 2023 22:06:02 -0500
Subject: [PATCH 6/9] xtask: Stub in auto_release command

---
 xtask/src/main.rs    |  6 ++++++
 xtask/src/release.rs | 11 +++++++++++
 2 files changed, 17 insertions(+)
 create mode 100644 xtask/src/release.rs

diff --git a/xtask/src/main.rs b/xtask/src/main.rs
index 03ec87d..c561ed3 100644
--- a/xtask/src/main.rs
+++ b/xtask/src/main.rs
@@ -7,6 +7,7 @@
 // except according to those terms.
 
 mod package;
+mod release;
 mod util;
 
 use package::Package;
@@ -110,11 +111,13 @@ fn test_gpt_disk_io() {
 
 fn main() {
     let args: Vec<_> = env::args().collect();
+    let arg_auto_release = "auto_release";
     let arg_test_all = "test_all";
     let arg_test_uguid = "test_uguid";
     let arg_test_gpt_disk_types = "test_gpt_disk_types";
     let arg_test_gpt_disk_io = "test_gpt_disk_io";
     let actions = &[
+        arg_auto_release,
         arg_test_all,
         arg_test_uguid,
         arg_test_gpt_disk_types,
@@ -126,6 +129,9 @@ fn main() {
     }
 
     let action = &args[1];
+    if action == arg_auto_release {
+        release::auto_release();
+    }
     if action == arg_test_all || action == arg_test_uguid {
         test_uguid();
     }
diff --git a/xtask/src/release.rs b/xtask/src/release.rs
new file mode 100644
index 0000000..718d168
--- /dev/null
+++ b/xtask/src/release.rs
@@ -0,0 +1,11 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+pub fn auto_release() {
+    todo!()
+}

From 6ea378fef9629dc9fa7b636a8717ea124af7dfce Mon Sep 17 00:00:00 2001
From: Nicholas Bishop <nbishop@nbishop.net>
Date: Sat, 11 Nov 2023 22:19:16 -0500
Subject: [PATCH 7/9] xtask: Implement auto_release command

---
 .deny.toml           |  11 +
 Cargo.lock           | 517 +++++++++++++++++++++++++++++++++++++++++++
 xtask/Cargo.toml     |   3 +
 xtask/src/main.rs    |   2 +-
 xtask/src/release.rs | 212 +++++++++++++++++-
 5 files changed, 742 insertions(+), 3 deletions(-)

diff --git a/.deny.toml b/.deny.toml
index f756d8a..8cb9d2b 100644
--- a/.deny.toml
+++ b/.deny.toml
@@ -12,4 +12,15 @@ allow = [
   "MIT",
   "MPL-2.0",
   "Unicode-DFS-2016",
+
+  # Needed for xtask only.
+  "ISC",
+  "OpenSSL",
+]
+
+[[licenses.clarify]]
+name = "ring"
+expression = "MIT AND ISC AND OpenSSL"
+license-files = [
+    { path = "LICENSE", hash = 0xbd0eed23 }
 ]
diff --git a/Cargo.lock b/Cargo.lock
index 4376e0d..b234420 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,12 +2,24 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "adler"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
+
 [[package]]
 name = "anyhow"
 version = "1.0.75"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a4668cab20f66d8d020e1fbc0ebe47217433c1b6c8f2040faf858554e394ace6"
 
+[[package]]
+name = "base64"
+version = "0.21.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "35636a1494ede3b646cc98f74f8e62c773a38a659ebc777a2cf26b9b74171df9"
+
 [[package]]
 name = "basic-toml"
 version = "0.1.7"
@@ -43,6 +55,79 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "bytes"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a2bd12c1caf447e69cd4528f47f94d203fd2582878ecb9e9465484c4148a8223"
+
+[[package]]
+name = "camino"
+version = "1.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c59e92b5a388f549b863a7bea62612c09f24c8393560709a54558a9abdfb3b9c"
+dependencies = [
+ "serde",
+]
+
+[[package]]
+name = "cargo-platform"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "12024c4645c97566567129c204f65d5815a8c9aecf30fcbe682b2fe034996d36"
+dependencies = [
+ "serde",
+]
+
+[[package]]
+name = "cargo_metadata"
+version = "0.18.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2d886547e41f740c616ae73108f6eb70afe6d940c7bc697cb30f13daec073037"
+dependencies = [
+ "camino",
+ "cargo-platform",
+ "semver",
+ "serde",
+ "serde_json",
+ "thiserror",
+]
+
+[[package]]
+name = "cc"
+version = "1.0.83"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1174fb0b6ec23863f8b971027804a42614e347eafb0a95bf0b12cdae21fc4d0"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
+[[package]]
+name = "crates-index"
+version = "2.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e1f3e3ef6d547bbf1213b3dabbf0b01a500fbd0924abf818b563a4bc2c85296c"
+dependencies = [
+ "hex",
+ "home",
+ "http",
+ "memchr",
+ "rustc-hash",
+ "semver",
+ "serde",
+ "serde_derive",
+ "serde_json",
+ "smol_str",
+ "thiserror",
+ "toml",
+]
+
 [[package]]
 name = "crc"
 version = "3.0.1"
@@ -58,6 +143,57 @@ version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "19d374276b40fb8bbdee95aef7c7fa6b5316ec764510eb64b8dd0e2ed0d7e7f5"
 
+[[package]]
+name = "crc32fast"
+version = "1.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b540bd8bc810d3885c6ea91e2018302f68baba2129ab3e88f32389ee9370880d"
+dependencies = [
+ "cfg-if",
+]
+
+[[package]]
+name = "equivalent"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5"
+
+[[package]]
+name = "flate2"
+version = "1.0.28"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "46303f565772937ffe1d394a4fac6f411c6013172fadde9dcdb1e147a086940e"
+dependencies = [
+ "crc32fast",
+ "miniz_oxide",
+]
+
+[[package]]
+name = "fnv"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
+
+[[package]]
+name = "form_urlencoded"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a62bc1cf6f830c2ec14a513a9fb124d0a213a629668a4186f329db21fe045652"
+dependencies = [
+ "percent-encoding",
+]
+
+[[package]]
+name = "getrandom"
+version = "0.2.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fe9006bed769170c11f845cf00c7c1e9092aeb3f268e007c3e760ac68008070f"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi",
+]
+
 [[package]]
 name = "glob"
 version = "0.3.1"
@@ -82,18 +218,106 @@ dependencies = [
  "uguid",
 ]
 
+[[package]]
+name = "hashbrown"
+version = "0.14.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f93e7192158dbcda357bdec5fb5788eebf8bbac027f3f33e719d29135ae84156"
+
+[[package]]
+name = "hex"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
+dependencies = [
+ "serde",
+]
+
+[[package]]
+name = "home"
+version = "0.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5444c27eef6923071f7ebcc33e3444508466a76f7a2b93da00ed6e19f30c1ddb"
+dependencies = [
+ "windows-sys",
+]
+
+[[package]]
+name = "http"
+version = "0.2.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f95b9abcae896730d42b78e09c155ed4ddf82c07b4de772c64aee5b2d8b7c150"
+dependencies = [
+ "bytes",
+ "fnv",
+ "itoa",
+]
+
+[[package]]
+name = "idna"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d20d6b07bfbc108882d88ed8e37d39636dcc260e15e30c45e6ba089610b917c"
+dependencies = [
+ "unicode-bidi",
+ "unicode-normalization",
+]
+
+[[package]]
+name = "indexmap"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d530e1a18b1cb4c484e6e34556a0d948706958449fca0cab753d649f2bce3d1f"
+dependencies = [
+ "equivalent",
+ "hashbrown",
+]
+
 [[package]]
 name = "itoa"
 version = "1.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "af150ab688ff2122fcef229be89cb50dd66af9e01a4ff320cc137eecc9bacc38"
 
+[[package]]
+name = "libc"
+version = "0.2.150"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "89d92a4743f9a61002fae18374ed11e7973f530cb3a3255fb354818118b2203c"
+
+[[package]]
+name = "log"
+version = "0.4.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b5e6163cb8c49088c2c36f57875e58ccd8c87c7427f7fbd50ea6710b2f3f2e8f"
+
+[[package]]
+name = "memchr"
+version = "2.6.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f665ee40bc4a3c5590afb1e9677db74a508659dfd71e126420da8274909a0167"
+
+[[package]]
+name = "miniz_oxide"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e7810e0be55b428ada41041c41f32c9f1a42817901b4ccf45fa3d4b6561e74c7"
+dependencies = [
+ "adler",
+]
+
 [[package]]
 name = "once_cell"
 version = "1.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dd8b5dd2ae5ed71462c540258bedcb51965123ad7e7ccf4b9a8cafaa4a63576d"
 
+[[package]]
+name = "percent-encoding"
+version = "2.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b2a4787296e9989611394c33f193f676704af1686e70b8f8033ab5ba9a35a94"
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.70"
@@ -112,12 +336,73 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "ring"
+version = "0.17.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fb0205304757e5d899b9c2e448b867ffd03ae7f988002e47cd24954391394d0b"
+dependencies = [
+ "cc",
+ "getrandom",
+ "libc",
+ "spin",
+ "untrusted",
+ "windows-sys",
+]
+
+[[package]]
+name = "rustc-hash"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
+
+[[package]]
+name = "rustls"
+version = "0.21.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "446e14c5cda4f3f30fe71863c34ec70f5ac79d6087097ad0bb433e1be5edf04c"
+dependencies = [
+ "log",
+ "ring",
+ "rustls-webpki",
+ "sct",
+]
+
+[[package]]
+name = "rustls-webpki"
+version = "0.101.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b6275d1ee7a1cd780b64aca7726599a1dbc893b1e64144529e55c3c2f745765"
+dependencies = [
+ "ring",
+ "untrusted",
+]
+
 [[package]]
 name = "ryu"
 version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1ad4cc8da4ef723ed60bced201181d83791ad433213d8c24efffda1eec85d741"
 
+[[package]]
+name = "sct"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "da046153aa2352493d6cb7da4b6e5c0c057d8a1d0a9aa8560baffdd945acd414"
+dependencies = [
+ "ring",
+ "untrusted",
+]
+
+[[package]]
+name = "semver"
+version = "1.0.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "836fa6a3e1e547f9a2c4040802ec865b5d85f4014efe00555d7090a3dcaa1090"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "serde"
 version = "1.0.193"
@@ -149,6 +434,15 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "serde_spanned"
+version = "0.6.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "12022b835073e5b11e90a14f86838ceb1c8fb0325b72416845c487ac0fa95e80"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "serde_test"
 version = "1.0.176"
@@ -158,6 +452,21 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "smol_str"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "74212e6bbe9a4352329b2f68ba3130c15a3f26fe88ff22dbdc6cdd58fa85e99c"
+dependencies = [
+ "serde",
+]
+
+[[package]]
+name = "spin"
+version = "0.9.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6980e8d7511241f8acf4aebddbb1ff938df5eebe98691418c4468d0b72a96a67"
+
 [[package]]
 name = "syn"
 version = "2.0.39"
@@ -178,6 +487,75 @@ dependencies = [
  "winapi-util",
 ]
 
+[[package]]
+name = "thiserror"
+version = "1.0.50"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f9a7210f5c9a7156bb50aa36aed4c95afb51df0df00713949448cf9e97d382d2"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.50"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "266b2e40bc00e5a6c09c3584011e08b06f123c00362c92b975ba9843aaaa14b8"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "tinyvec"
+version = "1.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87cc5ceb3875bb20c2890005a4e226a4651264a5c75edb2421b52861a0a0cb50"
+dependencies = [
+ "tinyvec_macros",
+]
+
+[[package]]
+name = "tinyvec_macros"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
+
+[[package]]
+name = "toml"
+version = "0.8.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1a195ec8c9da26928f773888e0742ca3ca1040c6cd859c919c9f59c1954ab35"
+dependencies = [
+ "serde",
+ "serde_spanned",
+ "toml_datetime",
+ "toml_edit",
+]
+
+[[package]]
+name = "toml_datetime"
+version = "0.6.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3550f4e9685620ac18a50ed434eb3aec30db8ba93b0287467bca5826ea25baf1"
+dependencies = [
+ "serde",
+]
+
+[[package]]
+name = "toml_edit"
+version = "0.21.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d34d383cd00a163b4a5b85053df514d45bc330f6de7737edfe0a93311d1eaa03"
+dependencies = [
+ "indexmap",
+ "serde",
+ "serde_spanned",
+ "toml_datetime",
+ "winnow",
+]
+
 [[package]]
 name = "trybuild"
 version = "1.0.85"
@@ -212,12 +590,73 @@ dependencies = [
  "trybuild",
 ]
 
+[[package]]
+name = "unicode-bidi"
+version = "0.3.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "92888ba5573ff080736b3648696b70cafad7d250551175acbaa4e0385b3e1460"
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
 
+[[package]]
+name = "unicode-normalization"
+version = "0.1.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c5713f0fc4b5db668a2ac63cdb7bb4469d8c9fed047b1d0292cc7b0ce2ba921"
+dependencies = [
+ "tinyvec",
+]
+
+[[package]]
+name = "untrusted"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ecb6da28b8a351d773b68d5825ac39017e680750f980f3a1a85cd8dd28a47c1"
+
+[[package]]
+name = "ureq"
+version = "2.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f5ccd538d4a604753ebc2f17cd9946e89b77bf87f6a8e2309667c6f2e87855e3"
+dependencies = [
+ "base64",
+ "flate2",
+ "http",
+ "log",
+ "once_cell",
+ "rustls",
+ "rustls-webpki",
+ "url",
+ "webpki-roots",
+]
+
+[[package]]
+name = "url"
+version = "2.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "143b538f18257fac9cad154828a57c6bf5157e1aa604d4816b5995bf6de87ae5"
+dependencies = [
+ "form_urlencoded",
+ "idna",
+ "percent-encoding",
+]
+
+[[package]]
+name = "wasi"
+version = "0.11.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
+
+[[package]]
+name = "webpki-roots"
+version = "0.25.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "14247bb57be4f377dfb94c72830b8ce8fc6beac03cf4bf7b9732eadd414123fc"
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -249,9 +688,87 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
+[[package]]
+name = "windows-sys"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
+dependencies = [
+ "windows-targets",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a2fa6e2155d7247be68c096456083145c183cbbbc2764150dda45a87197940c"
+dependencies = [
+ "windows_aarch64_gnullvm",
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
+
+[[package]]
+name = "winnow"
+version = "0.5.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "829846f3e3db426d4cee4510841b71a8e58aa2a76b1132579487ae430ccd9c7b"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "xtask"
 version = "0.0.0"
 dependencies = [
  "anyhow",
+ "cargo_metadata",
+ "crates-index",
+ "ureq",
 ]
diff --git a/xtask/Cargo.toml b/xtask/Cargo.toml
index 9634fb7..2676b2c 100644
--- a/xtask/Cargo.toml
+++ b/xtask/Cargo.toml
@@ -15,3 +15,6 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 anyhow = "1.0.75"
+cargo_metadata = "0.18.1"
+crates-index = "2.3.0"
+ureq = { version = "2.8.0", features = ["http-interop"] }
diff --git a/xtask/src/main.rs b/xtask/src/main.rs
index c561ed3..526b554 100644
--- a/xtask/src/main.rs
+++ b/xtask/src/main.rs
@@ -130,7 +130,7 @@ fn main() {
 
     let action = &args[1];
     if action == arg_auto_release {
-        release::auto_release();
+        release::auto_release().unwrap();
     }
     if action == arg_test_all || action == arg_test_uguid {
         test_uguid();
diff --git a/xtask/src/release.rs b/xtask/src/release.rs
index 718d168..7a3b44c 100644
--- a/xtask/src/release.rs
+++ b/xtask/src/release.rs
@@ -6,6 +6,214 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-pub fn auto_release() {
-    todo!()
+use crate::package::Package;
+use crate::util;
+use anyhow::{Context, Result};
+use cargo_metadata::{Metadata, MetadataCommand};
+use crates_index::SparseIndex;
+use std::env;
+use std::process::Command;
+
+/// Entry point for the auto-release process. This is intended to be run from a
+/// Github Actions workflow, see `.github/workflows/release.yml`.
+pub fn auto_release() -> Result<()> {
+    let commit_sha = get_commit_sha()?;
+    let commit_message_subject = get_commit_message_subject(&commit_sha)?;
+
+    if !commit_message_subject.starts_with("release:") {
+        println!("{commit_sha} does not contain the release trigger");
+        return Ok(());
+    }
+
+    fetch_git_tags()?;
+
+    let local_metadata = get_local_package_metadata()?;
+    let mut index = SparseIndex::new_cargo_default()?;
+
+    for package in Package::publish_order() {
+        auto_release_package(
+            *package,
+            &local_metadata,
+            &mut index,
+            &commit_sha,
+        )?;
+    }
+
+    Ok(())
+}
+
+/// Release a single package, if needed.
+///
+/// This publishes to crates.io if the corresponding version does not already
+/// exist there, and also pushes a new git tag if one doesn't exist yet.
+fn auto_release_package(
+    package: Package,
+    local_metadata: &Metadata,
+    index: &mut SparseIndex,
+    commit_sha: &str,
+) -> Result<()> {
+    let local_version = get_local_package_version(package, local_metadata)?;
+    println!("local version of {} is {local_version}", package.name());
+
+    // Create the remote git tag if it doesn't exist.
+    let tag = get_git_tag_name(package, &local_version);
+    if does_git_tag_exist(&tag)? {
+        println!("git tag {tag} already exists");
+    } else {
+        make_and_push_git_tag(&tag, commit_sha)?;
+    }
+
+    // Create the crates.io release if it doesn't exist.
+    if does_crates_io_release_exist(package, &local_version, index)? {
+        println!(
+            "{}-{local_version} has already been published",
+            package.name()
+        );
+    } else {
+        publish_package(package)?;
+    }
+
+    Ok(())
+}
+
+/// Get the commit to operate on from the `GITHUB_SHA` env var. When running in
+/// Github Actions, this will be set to the SHA of the merge commit that was
+/// pushed to the branch.
+fn get_commit_sha() -> Result<String> {
+    let commit_var_name = "GITHUB_SHA";
+    env::var(commit_var_name)
+        .context(format!("failed to get env var {commit_var_name}"))
+}
+
+/// Create a git command with the given args.
+fn get_git_command<const N: usize>(args: [&str; N]) -> Command {
+    let mut cmd = Command::new("git");
+    cmd.args(args);
+    cmd
+}
+
+/// Get the subject of the commit message for the given commit.
+fn get_commit_message_subject(commit_sha: &str) -> Result<String> {
+    let cmd = get_git_command([
+        "log",
+        "-1",
+        // Only get the subject of the commit message.
+        "--format=format:%s",
+        commit_sha,
+    ]);
+    let output = util::get_cmd_stdout(cmd)?;
+    String::from_utf8(output).context("commit message is not utf-8")
+}
+
+/// Use the `cargo_metadata` crate to get local info about packages in the
+/// workspace.
+fn get_local_package_metadata() -> Result<Metadata> {
+    let mut cmd = MetadataCommand::new();
+    // Ignore deps, we only need local packages.
+    cmd.no_deps();
+    Ok(cmd.exec()?)
+}
+
+/// Fetch git tags from the remote.
+fn fetch_git_tags() -> Result<()> {
+    let cmd = get_git_command(["fetch", "--tags"]);
+    util::run_cmd(cmd)
+}
+
+/// Format a package version as a git tag.
+fn get_git_tag_name(package: Package, local_version: &str) -> String {
+    format!("{}-v{}", package.name(), local_version)
+}
+
+/// Check if a git tag exists locally.
+///
+/// All git tags were fetched at the start of auto-release, so checking locally
+/// is sufficient.
+fn does_git_tag_exist(tag: &str) -> Result<bool> {
+    let cmd = get_git_command(["tag", "--list", tag]);
+    let output = util::get_cmd_stdout(cmd)?;
+    let output = String::from_utf8(output).context("git tag is not utf-8")?;
+
+    Ok(output.lines().any(|line| line == tag))
+}
+
+/// Create a git tag locally and push it.
+fn make_and_push_git_tag(tag: &str, commit_sha: &str) -> Result<()> {
+    // Create the tag.
+    let cmd = get_git_command(["tag", tag, commit_sha]);
+    util::run_cmd(cmd)?;
+
+    // Push it.
+    let cmd = get_git_command(["push", "--tags"]);
+    util::run_cmd(cmd)
+}
+
+/// Update the local crates.io cache.
+///
+/// Based on <https://github.com/frewsxcv/rust-crates-index/blob/HEAD/examples/sparse_http_ureq.rs>
+fn update_index(index: &mut SparseIndex, package: Package) -> Result<()> {
+    let crate_name = package.name();
+
+    println!("fetching updates for {}", package.name());
+    let request: ureq::Request =
+        index.make_cache_request(crate_name).unwrap().into();
+    let response = request.call()?;
+
+    index.parse_cache_response(crate_name, response.into(), true)?;
+
+    Ok(())
+}
+
+/// Check if a new release of `package` should be published.
+fn does_crates_io_release_exist(
+    package: Package,
+    local_version: &str,
+    index: &mut SparseIndex,
+) -> Result<bool> {
+    let remote_versions = get_remote_package_versions(package, index)?;
+    if remote_versions.contains(&local_version.to_string()) {
+        return Ok(true);
+    }
+
+    Ok(false)
+}
+
+/// Get the local version of `package`.
+fn get_local_package_version(
+    package: Package,
+    local_metadata: &Metadata,
+) -> Result<String> {
+    let metadata = local_metadata
+        .packages
+        .iter()
+        .find(|pm| pm.name == package.name())
+        .context(format!(
+            "failed to find {} in local metadata",
+            package.name()
+        ))?;
+    Ok(metadata.version.to_string())
+}
+
+/// Get all remote versions of `package`.
+fn get_remote_package_versions(
+    package: Package,
+    index: &mut SparseIndex,
+) -> Result<Vec<String>> {
+    // The local cache may be out of date, fetch updates from the remote.
+    update_index(index, package)?;
+
+    let cr = index.crate_from_cache(package.name())?;
+
+    Ok(cr
+        .versions()
+        .iter()
+        .map(|v| v.version().to_string())
+        .collect())
+}
+
+/// Publish `package` to crates.io.
+fn publish_package(package: Package) -> Result<()> {
+    let mut cmd = Command::new("cargo");
+    cmd.args(["publish", "--package", package.name()]);
+    util::run_cmd(cmd)
 }

From 9871e0365388c79c29167bf2a7a543366228bbd2 Mon Sep 17 00:00:00 2001
From: Nicholas Bishop <nbishop@nbishop.net>
Date: Sat, 11 Nov 2023 22:58:46 -0500
Subject: [PATCH 8/9] github: Add release action

---
 .github/workflows/release.yml | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 .github/workflows/release.yml

diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
new file mode 100644
index 0000000..4f0e340
--- /dev/null
+++ b/.github/workflows/release.yml
@@ -0,0 +1,24 @@
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+# https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+# <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
+# option. This file may not be copied, modified, or distributed
+# except according to those terms.
+
+name: Release
+on:
+  push:
+    branches:
+      - main
+permissions:
+  contents: write
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: Swatinem/rust-cache@v2
+      - run: cargo xtask auto_release
+        env:
+          CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}

From bf355880d3f0d4585c861986f919e68051298ff2 Mon Sep 17 00:00:00 2001
From: Nicholas Bishop <nbishop@nbishop.net>
Date: Sat, 11 Nov 2023 23:23:02 -0500
Subject: [PATCH 9/9] docs: Add release_process.md

---
 docs/release_process.md | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 docs/release_process.md

diff --git a/docs/release_process.md b/docs/release_process.md
new file mode 100644
index 0000000..92d92cc
--- /dev/null
+++ b/docs/release_process.md
@@ -0,0 +1,40 @@
+# Release process
+
+To release new versions of one or more packages in the workspace:
+
+1. Create a local branch and make these changes:
+   1. Update the version of each package you want to release in the
+      corresponding `Cargo.toml`. Follow semver.
+   2. If needed, update the dependency version in packages that depend
+      on the updated package. For example, if you are releasing changes
+      to `uguid` that require a major version bump, the dependency on
+      `uguid` in `gpt_disk_types` should be updated. Ditto for a minor
+      version bump if the dependent package requires any of the new
+      functionality. Patch version bumps do not require a change in the
+      dependent package. Note that in cargo's version of semver, `0.x.y`
+      treats `x` as the major version number.
+   3. Update the changelogs.
+2. Commit those changes. The commit message subject must start with
+   `release:`. Without that prefix, the automatic part of the release
+   process will not run.
+3. Push the branch and create a PR.
+4. When the PR is reviewed and merged, the automatic release process
+   will kick off.
+
+## The automatic part
+
+The rest of the release process is triggered by
+`.github/workflows/release.yml`, which runs when commits are pushed to
+the main branch. It runs `cargo xtask auto_publish`.
+
+The `auto_publish` command gets the local version of each package and,
+if necessary, creates a remote git tag and publishes to crates.io. If
+the git tag already exists, that part is skipped. If the crates.io
+release already exists, that part is skipped.
+
+## Crates.io token
+
+Releasing to crates.io requires an API token. That is passed to the job
+via a repository secret called `CARGO_REGISTRY_TOKEN`. The secret is
+configured in the repo settings. When creating an API token, restrict
+the scope to `publish-update`.