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Harden GitHub Actions workflows #173

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0da8e1f
Remove magic-nix-cache from release workflow
knuton May 20, 2026
db42758
Default permissions to read and only heighten where needed
knuton May 20, 2026
36449b1
Use env variables instead of string interpolation
knuton May 20, 2026
603dbf7
Override default to not persist creds in actions/checkout
knuton May 20, 2026
750ff43
Add zizmor GH Actions analysis workflow
knuton May 20, 2026
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18 changes: 10 additions & 8 deletions .github/workflows/release.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -7,8 +7,7 @@ on:
- "[0-9]+.[0-9]+.[0-9]+*"

permissions:
contents: write

contents: read

jobs:
build-macos:
Expand All @@ -17,13 +16,13 @@ jobs:
- uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
with:
fetch-depth: 0
- run: git fetch --tags --force origin ${{ github.ref }}
- run: git checkout ${{ github.ref }}
persist-credentials: false
- run: git fetch --tags --force origin ${GITHUB_REF}
- run: git checkout ${GITHUB_REF}
- run: git describe --always HEAD
- uses: cachix/install-nix-action@616559265b40713947b9c190a8ff4b507b5df49b # v31
with:
github_access_token: ${{ secrets.GITHUB_TOKEN }}
- uses: DeterminateSystems/magic-nix-cache-action@def9f5a5c6a6b8751c0534e8813a5d0ad2635660 # v11
- run: nix develop --command make crossbuild_mac
- run: nix develop --command make crossbuild_mac_bundles
- name: 'Upload Artifacts'
Expand All @@ -39,13 +38,13 @@ jobs:
- uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
with:
fetch-depth: 0
- run: git fetch --tags --force origin ${{ github.ref }}
- run: git checkout ${{ github.ref }}
persist-credentials: false
- run: git fetch --tags --force origin ${GITHUB_REF}
- run: git checkout ${GITHUB_REF}
- run: git describe --always HEAD
- uses: cachix/install-nix-action@616559265b40713947b9c190a8ff4b507b5df49b # v31
with:
github_access_token: ${{ secrets.GITHUB_TOKEN }}
- uses: DeterminateSystems/magic-nix-cache-action@def9f5a5c6a6b8751c0534e8813a5d0ad2635660 # v11
- run: nix develop --command make crossbuild
- name: 'Upload Artifacts'
id: upload
Expand All @@ -57,11 +56,14 @@ jobs:
release:
needs: [build-macos, build-others]
runs-on: ubuntu-latest
permissions:
contents: write
steps:
- name: Checkout
uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
with:
fetch-depth: 0
persist-credentials: false

- uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4
with:
Expand Down
9 changes: 9 additions & 0 deletions .github/workflows/test.yml
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Original file line number Diff line number Diff line change
@@ -1,5 +1,8 @@
name: Build and test

permissions:
contents: read

on:
pull_request:
push:
Expand All @@ -9,6 +12,8 @@ jobs:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
with:
persist-credentials: false
- uses: cachix/install-nix-action@616559265b40713947b9c190a8ff4b507b5df49b # v31
with:
github_access_token: ${{ secrets.GITHUB_TOKEN }}
Expand All @@ -21,6 +26,8 @@ jobs:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
with:
persist-credentials: false
- uses: cachix/install-nix-action@616559265b40713947b9c190a8ff4b507b5df49b # v31
with:
github_access_token: ${{ secrets.GITHUB_TOKEN }}
Expand All @@ -31,6 +38,8 @@ jobs:
runs-on: macos-latest
steps:
- uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
with:
persist-credentials: false
- uses: cachix/install-nix-action@616559265b40713947b9c190a8ff4b507b5df49b # v31
with:
github_access_token: ${{ secrets.GITHUB_TOKEN }}
Expand Down
21 changes: 21 additions & 0 deletions .github/workflows/zizmor.yml
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Original file line number Diff line number Diff line change
@@ -0,0 +1,21 @@
name: GitHub Actions Security Analysis with zizmor

on:
push:
branches: ["main"]
pull_request:
branches: ["**"]

permissions: {}

jobs:
zizmor:
runs-on: ubuntu-latest
permissions:
security-events: write
steps:
- uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
with:
persist-credentials: false

- uses: zizmorcore/zizmor-action@5f14fd08f7cf1cb1609c1e344975f152c7ee938d # v0.5.6
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