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CI: Set and update weekly the stable toolchain version #264

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35 changes: 35 additions & 0 deletions .github/workflows/cron-weekly-update-stable.yml
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Original file line number Diff line number Diff line change
@@ -0,0 +1,35 @@
name: Update Stable rustc
on:
schedule:
- cron: "0 0 * * 5" # runs every Friday at 00:00 (generally rust releases on Thursday)
workflow_dispatch: # allows manual triggering
permissions: {}
jobs:
format:
name: Update stable rustc
runs-on: ubuntu-24.04
permissions:
contents: write
id-token: write
pull-requests: write
steps:

@satsfy satsfy May 13, 2026

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id-token: write is present in .github/workflows/cron-weekly-update-nightly.yml but not here. Just flagging. I suppose it's only necessary if this job connects and authenticates to external services.

@tcharding tcharding May 13, 2026

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No clue, adding it in. cargo-cult-programming YOLO.

- uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0

@satsfy satsfy May 13, 2026

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Confirm commit. Could be 5.0.1.

with:
persist-credentials: false
- name: Install cargo-rbmt
run: cargo install --git https://github.com/rust-bitcoin/rust-bitcoin-maintainer-tools.git --rev $(cat rbmt-version) cargo-rbmt
- name: Update stable toolchain in Cargo.toml
run: |
eval "$(cargo rbmt toolchains --update-stable)"
echo "stable_version=$RBMT_STABLE" >> $GITHUB_ENV
- name: Create Pull Request
uses: peter-evans/create-pull-request@271a8d0340265f705b14b6d32b9829c1cb33d45e # v7.0.8

@satsfy satsfy May 13, 2026 •
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Confirm commit, could be 7.0.11.

with:
token: ${{ secrets.APOELSTRA_RUST_BITCOIN_ORG_CREATE_PR }}
author: Update Stable Rustc Bot <bot@example.com>
committer: Update Stable Rustc Bot <bot@example.com>
title: Automated weekly update to rustc stable (to ${{ env.stable_version }})
body: |
Automated update to Cargo.toml workspace metadata by [create-pull-request](https://github.com/peter-evans/create-pull-request) GitHub action
commit-message: Automated update to rustc stable-${{ env.stable_version }}
branch: create-pull-request/weekly-stable-update
2 changes: 1 addition & 1 deletion Cargo.toml
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Expand Up @@ -14,7 +14,7 @@ rust-version = "1.56.1"

[package.metadata.rbmt.toolchains]
nightly = "nightly-2026-06-05"
stable = "stable"
stable = "1.95.0"

[features]
default = ["std"]
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