Only support a rust-toolchain.toml file

.github/workflows/ci.yml

@@ -2,7 +2,7 @@ name: CI
 
 on:
   push:
-    branches: [master]
+    branches: [main]
   pull_request:
   workflow_dispatch:
   schedule: [cron: "40 1 * * *"]
@@ -25,8 +25,13 @@ jobs:
     timeout-minutes: 45
     steps:
       - uses: actions/checkout@v3
+      - name: Create toolchain file
+        run: |
+          echo "[toolchain]" >> rust-toolchain.toml
+          echo "channel = \"${{matrix.rust}}\"" >> rust-toolchain.toml
+          cat rust-toolchain.toml
       - uses: ./
-        name: Run dtolnay/rust-toolchain${{contains(matrix.rust, ' ') && ' for ' || '@'}}${{matrix.rust}}
+        name: Run dsherret/rust-toolchain-file${{contains(matrix.rust, ' ') && ' for ' || '@'}}${{matrix.rust}}
         id: toolchain
         with:
           toolchain: ${{matrix.rust}}

README.md

@@ -1,12 +1,19 @@
-# Install Rust Toolchain
+# Install Rust Toolchain via rust-toolchain.toml
 
-This GitHub Action installs a Rust toolchain using rustup. It is designed for
-one-line concise usage and good defaults.
-
-<br>
+Fork of https://github.com/dtolnay/rust-toolchain that supports and makes it mandatory to use a rust-toolchain.toml file.
 
 ## Example workflow
 
+Create a [`rust-toolchain.toml`](https://rust-lang.github.io/rustup/overrides.html#the-toolchain-file) file:
+
+```toml
+[toolchain]
+channel = "1.68"
+components = [ "rustfmt", "clippy" ]
+```
+
+Then add an entry to this action in your github actions:
+
 ```yaml
 name: test suite
 on: [push, pull_request]
@@ -17,45 +24,15 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - uses: dtolnay/rust-toolchain@stable
+      - uses: dsherret/rust-toolchain-file@1
       - run: cargo test --all-features
 ```
 
-The selection of Rust toolchain is made based on the particular @rev of this
-Action being requested. For example "dtolnay/rust-toolchain@nightly" pulls in
-the nightly Rust toolchain, while "dtolnay/rust-toolchain@1.42.0" pulls in
-1.42.0.
-
-<br>
+The selection of Rust toolchain is made based on the rust-toolchain.toml file.
 
 ## Inputs
 
-All inputs are optional.
-
-<table>
-<tr>
-  <th>Name</th>
-  <th>Description</th>
-</tr>
-<tr>
-  <td><code>toolchain</code></td>
-  <td>
-    Rustup toolchain specifier e.g. <code>stable</code>, <code>nightly</code>, <code>1.42.0</code>, <code>nightly-2022-01-01</code>.
-    <b>Important: the default is to match the @rev as described above.</b>
-    When passing an explicit <code>toolchain</code> as an input instead of @rev, you'll want to use "dtolnay/rust-toolchain@master" as the revision of the action.
-  </td>
-</tr>
-<tr>
-  <td><code>targets</code></td>
-  <td>Comma-separated string of additional targets to install e.g. <code>wasm32-unknown-unknown</code></td>
-</tr>
-<tr>
-  <td><code>components</code></td>
-  <td>Comma-separated string of additional components to install e.g. <code>clippy, rustfmt</code></td>
-</tr>
-</table>
-
-<br>
+None. You must define everything in the rust-toolchain.toml file.
 
 ## Outputs
 
@@ -74,31 +51,6 @@ All inputs are optional.
 </tr>
 </table>
 
-<br>
-
-## Toolchain expressions
-
-The following forms are available for projects that use a sliding window of
-compiler support.
-
-```yaml
-     # Installs the most recent stable toolchain as of the specified time
-     # offset, which may be written in years, months, weeks, or days.
-  - uses: dtolnay/rust-toolchain@master
-    with:
-      toolchain: stable 18 months ago
-```
-
-```yaml
-     # Installs the stable toolchain which preceded the most recent one by
-     # the specified number of minor versions.
-  - uses: dtolnay/rust-toolchain@master
-    with:
-      toolchain: stable minus 8 releases
-```
-
-<br>
-
 ## License
 
 The scripts and documentation in this project are released under the [MIT

action.yml

@@ -1,24 +1,10 @@
-name: rustup toolchain install
-author: David Tolnay
-description: Install the Rust toolchain
+name: rust-toolchain.toml setup
+author: David Tolnay, David Sherret
+description: Install the Rust toolchain via a rust-toolchain.toml file
 branding:
   icon: activity
   color: purple
 
-inputs:
-  toolchain:
-    description: Rust toolchain specification -- see https://rust-lang.github.io/rustup/concepts/toolchains.html#toolchain-specification
-    required: true
-  targets:
-    description: Comma-separated list of target triples to install for this toolchain
-    required: false
-  target:
-    description: Alias for `targets`
-    required: false
-  components:
-    description: Comma-separated list of components to be additionally installed
-    required: false
-
 outputs:
   cachekey:
     description: A short hash of the rustc version, appropriate for use as a cache key. "20220627a831"
@@ -30,22 +16,17 @@ outputs:
 runs:
   using: composite
   steps:
-    - id: parse
+    - id: ensure-toolchain-file
       run: |
-        : parse toolchain version
-        if [[ $toolchain =~ ^stable' '[0-9]+' '(year|month|week|day)s?' 'ago$ ]]; then
-          if [[ ${{runner.os}} == macOS ]]; then
-            echo "toolchain=1.$((($(date -v-$(sed 's/stable \([0-9]*\) \(.\).*/\1\2/' <<< $toolchain) +%s)/60/60/24-16569)/7/6))" >> $GITHUB_OUTPUT
-          else
-            echo "toolchain=1.$((($(date --date "${toolchain#stable }" +%s)/60/60/24-16569)/7/6))" >> $GITHUB_OUTPUT
-          fi
-        elif [[ $toolchain =~ ^stable' 'minus' '[0-9]+' 'releases?$ ]]; then
-          echo "toolchain=1.$((($(date +%s)/60/60/24-16569)/7/6-${toolchain//[^0-9]/}))" >> $GITHUB_OUTPUT
+        if [[ -f "rust-toolchain" || -f "rust-toolchain.toml" ]]
+        then
+          echo "found toolchain"
         else
-          echo "toolchain=$toolchain" >> $GITHUB_OUTPUT
+          echo "No rust-toolchain or rust-toolchain.toml file found in repo."
+          echo "Please ensure the repo is checked out first or add this file."
+          echo "If you don't want this file, then please use https://github.com/dtolnay/rust-toolchain"
+          exit 1
         fi
-      env:
-        toolchain: ${{inputs.toolchain}}
       shell: bash
 
     - id: flags
@@ -68,18 +49,15 @@ runs:
       if: runner.os != 'Windows'
       shell: bash
 
-    - name: rustup toolchain install ${{steps.parse.outputs.toolchain}}
-      run: rustup toolchain install ${{steps.parse.outputs.toolchain}}${{steps.flags.outputs.targets}}${{steps.flags.outputs.components}} --profile minimal${{steps.flags.outputs.downgrade}} --no-self-update
-      shell: bash
-
-    - run: rustup default ${{steps.parse.outputs.toolchain}}
+    - name: rustup toolchain install
+      run: rustup toolchain install --no-self-update
       shell: bash
 
     - id: rustc-version
       run: |
         : create cachekey
-        DATE=$(rustc +${{steps.parse.outputs.toolchain}} --version --verbose | sed -ne 's/^commit-date: \(20[0-9][0-9]\)-\([01][0-9]\)-\([0-3][0-9]\)$/\1\2\3/p')
-        HASH=$(rustc +${{steps.parse.outputs.toolchain}} --version --verbose | sed -ne 's/^commit-hash: //p')
+        DATE=$(rustc --version --verbose | sed -ne 's/^commit-date: \(20[0-9][0-9]\)-\([01][0-9]\)-\([0-3][0-9]\)$/\1\2\3/p')
+        HASH=$(rustc --version --verbose | sed -ne 's/^commit-hash: //p')
         echo "cachekey=$(echo $DATE$HASH | head -c12)" >> $GITHUB_OUTPUT
       shell: bash
 
@@ -102,7 +80,7 @@ runs:
         # except on 1.66 and 1.67, on which it is unstable
         if [ -z "${CARGO_REGISTRIES_CRATES_IO_PROTOCOL+set}" -o -f "${{runner.temp}}"/.implicit_cargo_registries_crates_io_protocol ]; then
           touch "${{runner.temp}}"/.implicit_cargo_registries_crates_io_protocol || true
-          if rustc +${{steps.parse.outputs.toolchain}} --version --verbose | (! grep -q '^release: 1\.6[67]\.'); then
+          if rustc --version --verbose | (! grep -q '^release: 1\.6[67]\.'); then
             echo CARGO_REGISTRIES_CRATES_IO_PROTOCOL=sparse >> $GITHUB_ENV
           else
             echo CARGO_REGISTRIES_CRATES_IO_PROTOCOL=git >> $GITHUB_ENV
@@ -110,5 +88,5 @@ runs:
         fi
       shell: bash
 
-    - run: rustc +${{steps.parse.outputs.toolchain}} --version --verbose
+    - run: rustc --version --verbose
       shell: bash

scripts/update-revs.sh

@@ -1,61 +0,0 @@
-#!/bin/bash
-
-cd -- "$(dirname -- "${BASH_SOURCE[0]}")/.."
-
-if ! git diff-index --quiet HEAD; then
-    echo "Not running update-revs.sh because git working directory is dirty" >&2
-    exit 1
-fi
-
-patch_releases=(
-    1.12.1 1.15.1 1.22.1 1.24.1 1.26.1 1.26.2 1.27.1 1.27.2 1.29.1 1.29.2 1.30.1
-    1.31.1 1.34.1 1.34.2 1.41.1 1.43.1 1.44.1 1.45.1 1.45.2 1.52.1 1.56.1 1.58.1
-    1.62.1 1.66.1 1.67.1
-)
-
-releases() {
-    printf "%s\n" 1.{0..70}.0 ${patch_releases[@]} | sort -V
-}
-
-base=$(git rev-parse HEAD)
-push=()
-
-declare -A minor
-for rev in `releases`; do
-    minor[${rev%.*}]=$rev
-done
-
-for rev in `releases` stable beta nightly; do
-    echo "Updating $rev branch"
-    git checkout --quiet "$base"
-    git branch --quiet --delete --force $rev &>/dev/null || true
-    sed -i "s/required: true/required: false\n    default: $rev/" action.yml
-    git add action.yml
-    git commit --quiet --message "toolchain: $rev"
-    git checkout --quiet -b $rev
-    push+=("$rev:refs/heads/$rev")
-    if [ "${minor[${rev%.*}]}" == $rev ]; then
-        push+=("$rev:refs/heads/${rev%.*}")
-    fi
-done
-
-for tool in clippy miri; do
-    echo "Updating $tool branch"
-    git checkout --quiet --detach nightly
-    git branch --quiet --delete --force $tool &>/dev/null || true
-    if [ $tool == miri ]; then
-        default="miri, rust-src"
-        echo -e "    - uses: dtolnay/install@xargo\n      with:\n        bin: xargo-check" >> action.yml
-    else
-        default=$tool
-    fi
-    sed -i "/required: false/{N;s/\n$/\n    default: $default\n/}" action.yml
-    git add action.yml
-    git commit --quiet --message "components: $tool"
-    git checkout --quiet -b $tool
-    push+=("$tool:refs/heads/$tool")
-done
-
-git checkout --quiet "$base"
-
-echo "git push origin --force-with-lease ${push[@]}"