fix docs and enable CI on main branch (tokio-rs#3295)

## Motivation

The new `main` branch is forked from the `v0.1.x` branch. It will be
made the default branch and going forward we will merge PRs to this
branch first (and then forward port to a new `v0.2.x` branch forked from
`master`).

It looks like Netlify jobs weren't running on the `v0.1.x` branch, and so
there were quite a few errors in the docs on that branch (which isn't great
because those are the ones that get published to docs.rs).

## Solution

Separate to this PR, we've enabled Netlify on the `main` branch, and this
change fixes all the errors that were present in the docs.

This change sets the GitHub actions to run on the `main` branch instead
of `v0.1.x`. It also adds some text in the root README.md which
describes the branch set-up.

Refs: tokio-rs#3294

Author: hds

.github/workflows/CI.yml

@@ -3,7 +3,7 @@ name: CI
 on:
   push:
     branches:
-    - "v0.1.x"
+    - "main"
   pull_request: {}
 
 env:

.github/workflows/release.yml

@@ -19,6 +19,6 @@ jobs:
           prefix: tracing(-[a-z]+)?
           changelog: "$prefix/CHANGELOG.md"
           title: "$prefix $version"
-          branch: v0.1.x
+          branch: main
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

README.md

@@ -1,10 +1,10 @@
 ![Tracing — Structured, application-level diagnostics][splash]
 
-[splash]: https://raw.githubusercontent.com/tokio-rs/tracing/master/assets/splash.svg
+[splash]: https://raw.githubusercontent.com/tokio-rs/tracing/main/assets/splash.svg
 
 [![Crates.io][crates-badge]][crates-url]
 [![Documentation][docs-badge]][docs-url]
-[![Documentation (master)][docs-master-badge]][docs-master-url]
+[![Documentation (v0.2.x)][docs-v0.2.x-badge]][docs-v0.2.x-url]
 [![MIT licensed][mit-badge]][mit-url]
 [![Build Status][actions-badge]][actions-url]
 [![Discord chat][discord-badge]][discord-url]
@@ -13,8 +13,8 @@
 [crates-url]: https://crates.io/crates/tracing
 [docs-badge]: https://docs.rs/tracing/badge.svg
 [docs-url]: https://docs.rs/tracing
-[docs-master-badge]: https://img.shields.io/badge/docs-master-blue
-[docs-master-url]: https://tracing.rs
+[docs-v0.2.x-badge]: https://img.shields.io/badge/docs-v0.2.x-blue
+[docs-v0.2.x-url]: https://tracing.rs
 [mit-badge]: https://img.shields.io/badge/license-MIT-blue.svg
 [mit-url]: LICENSE
 [actions-badge]: https://github.com/tokio-rs/tracing/workflows/CI/badge.svg
@@ -23,14 +23,22 @@
 [discord-url]: https://discord.gg/EeF3cQw
 
 [Website](https://tokio.rs) |
-[Chat](https://discord.gg/EeF3cQw) | [Documentation (master branch)](https://tracing-rs.netlify.com/)
+[Chat](https://discord.gg/EeF3cQw)
 
 ## Overview
 
 `tracing` is a framework for instrumenting Rust programs to collect
 structured, event-based diagnostic information. `tracing` is maintained by the
 Tokio project, but does _not_ require the `tokio` runtime to be used.
 
+### Branch set-up
+
+- [`main`](https://github.com/tokio-rs/tracing/tree/main) - Default branch, crates.io releases are done from this branch. This was previously the
+  `v0.1.x` branch.
+- [`v0.2.x`](https://github.com/tokio-rs/tracing/tree/v0.2.x) - Branch containing the as-yet unreleased 0.2 version of `tracing-core`, `tracing`, and
+  all the other tracing crates that depend on these versions. This was previously the `master`
+  branch.
+
 ## Usage
 
 ### In Applications

tracing-appender/README.md

@@ -1,14 +1,14 @@
 ![Tracing — Structured, application-level diagnostics][splash]
 
-[splash]: https://raw.githubusercontent.com/tokio-rs/tracing/master/assets/splash.svg
+[splash]: https://raw.githubusercontent.com/tokio-rs/tracing/main/assets/splash.svg
 
 # tracing-appender
 
 Writers for logging events and spans
 
 [![Crates.io][crates-badge]][crates-url]
 [![Documentation][docs-badge]][docs-url]
-[![Documentation (master)][docs-master-badge]][docs-master-url]
+[![Documentation (v0.2.x)][docs-v0.2.x-badge]][docs-v0.2.x-url]
 [![MIT licensed][mit-badge]][mit-url]
 [![Build Status][actions-badge]][actions-url]
 [![Discord chat][discord-badge]][discord-url]
@@ -19,8 +19,8 @@ Writers for logging events and spans
 [crates-url]: https://crates.io/crates/tracing-appender/0.2.2
 [docs-badge]: https://docs.rs/tracing-appender/badge.svg
 [docs-url]: https://docs.rs/tracing-appender/0.2.2
-[docs-master-badge]: https://img.shields.io/badge/docs-master-blue
-[docs-master-url]: https://tracing.rs/tracing-appender
+[docs-v0.2.x-badge]: https://img.shields.io/badge/docs-v0.2.x-blue
+[docs-v0.2.x-url]: https://tracing.rs/tracing-appender
 [mit-badge]: https://img.shields.io/badge/license-MIT-blue.svg
 [mit-url]: ../LICENSE
 [actions-badge]: https://github.com/tokio-rs/tracing/workflows/CI/badge.svg

tracing-appender/src/lib.rs

@@ -4,13 +4,13 @@
 //!
 //! [`tracing`][tracing] is a framework for structured, event-based diagnostic information.
 //! `tracing-appender` allows events and spans to be recorded in a non-blocking manner through
-//! a dedicated logging thread. It also provides a [`RollingFileAppender`][file_appender] that can
+//! a dedicated logging thread. It also provides a [`RollingFileAppender`] that can
 //! be used with _or_ without the non-blocking writer.
 //!
 //! *Compiler support: [requires `rustc` 1.63+][msrv]*
 //!
 //! [msrv]: #supported-rust-versions
-//! [file_appender]: rolling::RollingFileAppender
+//! [`RollingFileAppender`]: rolling::RollingFileAppender
 //! [tracing]: https://docs.rs/tracing/
 //!
 //! # Usage
@@ -136,7 +136,7 @@
 //! long as doing so complies with this policy.
 //!
 #![doc(
-    html_logo_url = "https://raw.githubusercontent.com/tokio-rs/tracing/master/assets/logo-type.png",
+    html_logo_url = "https://raw.githubusercontent.com/tokio-rs/tracing/main/assets/logo-type.png",
     issue_tracker_base_url = "https://github.com/tokio-rs/tracing/issues/"
 )]
 #![cfg_attr(docsrs, deny(rustdoc::broken_intra_doc_links))]

tracing-appender/src/rolling.rs

@@ -1,6 +1,6 @@
 //! A rolling file appender.
 //!
-//! Creates a new log file at a fixed frequency as defined by [`Rotation`][self::Rotation].
+//! Creates a new log file at a fixed frequency as defined by [`Rotation`].
 //! Logs will be written to this file for the duration of the period and will automatically roll over
 //! to the newly created log file once the time period has elapsed.
 //!
@@ -116,9 +116,9 @@ impl RollingFileAppender {
     /// Creates a new `RollingFileAppender`.
     ///
     /// A `RollingFileAppender` will have a fixed rotation whose frequency is
-    /// defined by [`Rotation`][self::Rotation]. The `directory` and
-    /// `file_name_prefix` arguments determine the location and file name's _prefix_
-    /// of the log file. `RollingFileAppender` will automatically append the current date
+    /// defined by [`Rotation`]. The `directory` and `file_name_prefix`
+    /// arguments determine the location and file name's _prefix_ of the log
+    /// file. `RollingFileAppender` will automatically append the current date
     /// and hour (UTC format) to the file name.
     ///
     /// Alternatively, a `RollingFileAppender` can be constructed using one of the following helpers:
@@ -340,9 +340,9 @@ pub fn hourly(
 /// a non-blocking, daily file appender.
 ///
 /// A `RollingFileAppender` has a fixed rotation whose frequency is
-/// defined by [`Rotation`][self::Rotation]. The `directory` and
-/// `file_name_prefix` arguments determine the location and file name's _prefix_
-/// of the log file. `RollingFileAppender` automatically appends the current date in UTC.
+/// defined by [`Rotation`]. The `directory` and `file_name_prefix`
+/// arguments determine the location and file name's _prefix_ of the log file.
+/// `RollingFileAppender` automatically appends the current date in UTC.
 ///
 /// # Examples
 ///
@@ -376,9 +376,9 @@ pub fn daily(
 /// a non-blocking, weekly file appender.
 ///
 /// A `RollingFileAppender` has a fixed rotation whose frequency is
-/// defined by [`Rotation`][self::Rotation]. The `directory` and
-/// `file_name_prefix` arguments determine the location and file name's _prefix_
-/// of the log file. `RollingFileAppender` automatically appends the current date in UTC.
+/// defined by [`Rotation`]. The `directory` and `file_name_prefix` arguments
+/// determine the location and file name's _prefix_ of the log file.
+/// `RollingFileAppender` automatically appends the current date in UTC.
 ///
 /// # Examples
 ///

tracing-attributes/Cargo.toml

@@ -4,7 +4,7 @@ name = "tracing-attributes"
 # - Remove path dependencies
 # - Update doc url in README.md.
 # - Update CHANGELOG.md.
-# - Create "v0.1.x" git tag.
+# - Create "tracing-attributes-0.1.x" git tag.
 version = "0.1.28"
 authors = [
     "Tokio Contributors <[email protected]>",

tracing-attributes/README.md

@@ -1,14 +1,14 @@
 ![Tracing — Structured, application-level diagnostics][splash]
 
-[splash]: https://raw.githubusercontent.com/tokio-rs/tracing/master/assets/splash.svg
+[splash]: https://raw.githubusercontent.com/tokio-rs/tracing/main/assets/splash.svg
 
 # tracing-attributes
 
 Macro attributes for application-level tracing.
 
 [![Crates.io][crates-badge]][crates-url]
 [![Documentation][docs-badge]][docs-url]
-[![Documentation (master)][docs-master-badge]][docs-master-url]
+[![Documentation (v0.2.x)][docs-v0.2.x-badge]][docs-v0.2.x-url]
 [![MIT licensed][mit-badge]][mit-url]
 [![Build Status][actions-badge]][actions-url]
 [![Discord chat][discord-badge]][discord-url]
@@ -19,8 +19,8 @@ Macro attributes for application-level tracing.
 [crates-url]: https://crates.io/crates/tracing-attributes
 [docs-badge]: https://docs.rs/tracing-attributes/badge.svg
 [docs-url]: https://docs.rs/tracing-attributes/0.1.28
-[docs-master-badge]: https://img.shields.io/badge/docs-master-blue
-[docs-master-url]: https://tracing-rs.netlify.com/tracing_attributes
+[docs-v0.2.x-badge]: https://img.shields.io/badge/docs-v0.2.x-blue
+[docs-v0.2.x-url]: https://tracing.rs/tracing_attributes
 [mit-badge]: https://img.shields.io/badge/license-MIT-blue.svg
 [mit-url]: LICENSE
 [actions-badge]: https://github.com/tokio-rs/tracing/workflows/CI/badge.svg

tracing-attributes/src/lib.rs

@@ -53,7 +53,7 @@
 //! long as doing so complies with this policy.
 //!
 #![doc(
-    html_logo_url = "https://raw.githubusercontent.com/tokio-rs/tracing/master/assets/logo-type.png",
+    html_logo_url = "https://raw.githubusercontent.com/tokio-rs/tracing/main/assets/logo-type.png",
     issue_tracker_base_url = "https://github.com/tokio-rs/tracing/issues/"
 )]
 #![cfg_attr(docsrs, deny(rustdoc::broken_intra_doc_links))]

tracing-core/Cargo.toml

@@ -5,7 +5,7 @@ name = "tracing-core"
 # - Update html_root_url.
 # - Update doc url in README.md.
 # - Update CHANGELOG.md.
-# - Create "v0.1.x" git tag.
+# - Create "tracing-core-0.1.x" git tag.
 version = "0.1.33"
 authors = ["Tokio Contributors <[email protected]>"]
 license = "MIT"