Admin
c84d5d2210
The license bot service (Dcntrlized/license-bot) is authoritative: it amends missing AGPL headers into the PR head commit, including for fork PRs, and reports the license-bot / addlicense commit status. This workflow now only reports an honest advisory signal, holds no secrets and never writes.
109 lines
3.9 KiB
YAML
109 lines
3.9 KiB
YAML
name: license-headers
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# Advisory license check.
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#
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# The Dcntrlized license bot (the webhook service in this repository) is the
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# authority: it amends the missing AGPL headers into the pull request's head
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# commit and reports the `license-bot / addlicense` commit status. This workflow
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# duplicates the check read-only so a pull request still shows an honest signal
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# when the bot is unavailable. It holds no secrets, never writes, and must not
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# be made a required check: Gitea evaluates a pull request's workflows from the
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# head branch, so any context this job reports can be reproduced by a
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# contributor who edits the workflow.
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on:
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pull_request:
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types: [opened, synchronize, reopened, ready_for_review]
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permissions:
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contents: read
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pull-requests: read
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concurrency:
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group: license-headers-${{ gitea.event.pull_request.number }}
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cancel-in-progress: true
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defaults:
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run:
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shell: sh
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jobs:
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addlicense:
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name: addlicense
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runs-on: alpine-latest
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steps:
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- name: Prerequisites
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run: apk add --no-cache git curl ca-certificates jq
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- name: Install addlicense
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run: |
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set -e
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curl -fsSL -o /tmp/addlicense.tgz \
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https://github.com/google/addlicense/releases/download/v1.2.0/addlicense_v1.2.0_Linux_x86_64.tar.gz
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tar -xzf /tmp/addlicense.tgz -C /tmp
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install -m 0755 /tmp/addlicense /usr/local/bin/addlicense
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- name: Check added files for an AGPL header
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env:
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TOKEN: ${{ secrets.GITHUB_TOKEN }}
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SERVER: ${{ gitea.server_url }}
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REPO: ${{ gitea.repository }}
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NUM: ${{ gitea.event.pull_request.number }}
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HEAD_REPO: ${{ gitea.event.pull_request.head.repo.full_name }}
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HEAD_REF: ${{ gitea.event.pull_request.head.ref }}
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run: |
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set -e
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SCHEME="${SERVER%%://*}"
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HOST="${SERVER#*://}"
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api() { curl -fsS -H "Authorization: token $TOKEN" "$@"; }
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# Every file this pull request added (paginated).
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page=1
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: > /tmp/added.txt
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while :; do
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batch="$(api "$SERVER/api/v1/repos/$REPO/pulls/$NUM/files?limit=50&page=$page")"
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printf '%s' "$batch" | jq -r '.[] | select(.status=="added") | .filename' >> /tmp/added.txt
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[ "$(printf '%s' "$batch" | jq 'length')" -lt 50 ] && break
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page=$((page + 1))
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done
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if [ ! -s /tmp/added.txt ]; then
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echo "This pull request adds no files; nothing to check."
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exit 0
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fi
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# The head may be a fork: the per-run token is read-only and can
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# still clone it. The scheme comes from gitea.server_url because the
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# instance may be plain HTTP.
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git clone --quiet --depth 1 --branch "$HEAD_REF" \
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"$SCHEME://oauth2:$TOKEN@$HOST/$HEAD_REPO.git" /tmp/pr
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cd /tmp/pr
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# .licenseignore holds doublestar globs, not prefixes.
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set --
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while IFS= read -r pattern; do
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case "$pattern" in ''|\#*) continue ;; esac
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set -- "$@" -ignore "$pattern"
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done < .licenseignore
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year="$(date +%Y)"
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: > /tmp/missing.txt
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while IFS= read -r file; do
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[ -z "$file" ] && continue
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[ -e "$file" ] || continue
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if ! addlicense -check -f .license-header.tpl -c Dcntrlized -y "$year" "$@" "$file" >/dev/null 2>&1; then
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printf ' - %s\n' "$file" >> /tmp/missing.txt
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fi
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done < /tmp/added.txt
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if [ -s /tmp/missing.txt ]; then
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echo "::error::This pull request adds files without an AGPL-3.0 header:"
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cat /tmp/missing.txt
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echo ""
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echo "The license bot normally amends these into your commit automatically."
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echo "If it did not, copy the header from .license-header.tpl and push again."
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exit 1
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fi
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echo "All added files carry an AGPL-3.0 header."
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