feat: add Phase 5 — Migrate Pipelines (GitHub → Gitea Actions)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
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165
phase5_migrate_pipelines.sh
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165
phase5_migrate_pipelines.sh
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#!/usr/bin/env bash
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set -euo pipefail
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# =============================================================================
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# phase5_migrate_pipelines.sh — Copy GitHub Actions → Gitea Actions workflows
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# Depends on: Phase 4 complete (repos exist on Gitea primary)
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# For each repo:
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# 1. Clone from Gitea to temp directory
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# 2. Copy .github/workflows/*.yml → .gitea/workflows/
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# 3. Apply compatibility fixes (github.* → gitea.* context vars)
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# 4. Add migration header comment
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# 5. Commit and push
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# Idempotent: skips repos that already have .gitea/workflows/ with files.
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# =============================================================================
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SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
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source "${SCRIPT_DIR}/lib/common.sh"
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load_env
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require_vars GITEA_ADMIN_TOKEN GITEA_INTERNAL_URL GITEA_ORG_NAME \
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GITEA_ADMIN_USER GITEA_ADMIN_PASSWORD \
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REPO_1_NAME REPO_2_NAME REPO_3_NAME
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phase_header 5 "Migrate Pipelines (GitHub → Gitea Actions)"
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REPOS=("$REPO_1_NAME" "$REPO_2_NAME" "$REPO_3_NAME")
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TEMP_BASE="/tmp/gitea-migration"
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MIGRATION_HEADER="# Migrated from GitHub Actions — review for Gitea compatibility"
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# Clean up temp directory on exit (even on failure)
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cleanup() {
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rm -rf "$TEMP_BASE"
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}
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trap cleanup EXIT
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SUCCESS=0
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SKIPPED=0
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FAILED=0
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for repo in "${REPOS[@]}"; do
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log_info "--- Processing repo: ${repo} ---"
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# -------------------------------------------------------------------------
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# Idempotency: check if .gitea/workflows already exists via API
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# The Gitea contents API returns 200 if the path exists.
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# -------------------------------------------------------------------------
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if gitea_api GET "/repos/${GITEA_ORG_NAME}/${repo}/contents/.gitea/workflows" >/dev/null 2>&1; then
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log_info ".gitea/workflows/ already exists in ${repo} — skipping"
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SKIPPED=$((SKIPPED + 1))
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continue
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fi
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# -------------------------------------------------------------------------
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# Step 1: Clone the repo to a temp directory
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# Uses token-based auth in the clone URL so git can push later.
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# -------------------------------------------------------------------------
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CLONE_DIR="${TEMP_BASE}/${repo}"
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rm -rf "$CLONE_DIR"
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mkdir -p "$CLONE_DIR"
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# Construct clone URL with embedded token for auth
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# Format: http://token:TOKEN@host:port/org/repo.git
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CLONE_URL=$(echo "${GITEA_INTERNAL_URL}" | sed "s|://|://${GITEA_ADMIN_USER}:${GITEA_ADMIN_TOKEN}@|")
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log_info "Cloning ${repo}..."
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git clone -q "${CLONE_URL}/${GITEA_ORG_NAME}/${repo}.git" "$CLONE_DIR"
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# -------------------------------------------------------------------------
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# Step 2: Check for GitHub workflows
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# If the repo has no .github/workflows, log a warning and skip.
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# This is expected — not every repo has CI pipelines.
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# -------------------------------------------------------------------------
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if [[ ! -d "${CLONE_DIR}/.github/workflows" ]]; then
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log_warn "No .github/workflows/ found in ${repo} — skipping"
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SKIPPED=$((SKIPPED + 1))
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continue
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fi
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# Count workflow files to verify there's something to migrate
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WORKFLOW_FILES=$(find "${CLONE_DIR}/.github/workflows" -name "*.yml" -o -name "*.yaml" | wc -l | xargs)
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if [[ "$WORKFLOW_FILES" -eq 0 ]]; then
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log_warn "No .yml/.yaml files in .github/workflows/ for ${repo} — skipping"
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SKIPPED=$((SKIPPED + 1))
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continue
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fi
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log_info "Found ${WORKFLOW_FILES} workflow file(s) to migrate"
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# -------------------------------------------------------------------------
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# Step 3: Create .gitea/workflows and copy files
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# -------------------------------------------------------------------------
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mkdir -p "${CLONE_DIR}/.gitea/workflows"
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for wf in "${CLONE_DIR}/.github/workflows/"*.yml "${CLONE_DIR}/.github/workflows/"*.yaml; do
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# Skip glob pattern if no files matched (nullglob not set)
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[[ -f "$wf" ]] || continue
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local_name=$(basename "$wf")
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dest="${CLONE_DIR}/.gitea/workflows/${local_name}"
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cp "$wf" "$dest"
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# -----------------------------------------------------------------
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# Step 4: Apply compatibility fixes
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# Gitea Actions is mostly GitHub-compatible, but context variables
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# use "gitea" prefix instead of "github". These replacements handle
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# the most common cases. Marketplace actions (actions/checkout etc.)
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# work as-is since Gitea mirrors them.
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# -----------------------------------------------------------------
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# Add migration header comment at the top of the file
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# Using a temp file to prepend since sed -i on macOS has quirks
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tmpwf=$(mktemp)
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printf '%s\n' "$MIGRATION_HEADER" > "$tmpwf"
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cat "$dest" >> "$tmpwf"
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mv "$tmpwf" "$dest"
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# Replace GitHub-specific context variables with Gitea equivalents
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# Using sed -i '' for macOS compatibility (GNU sed uses -i without arg)
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sed -i '' \
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-e 's/github\.repository/gitea.repository/g' \
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-e 's/github\.event/gitea.event/g' \
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-e 's/github\.token/gitea.token/g' \
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-e 's/github\.server_url/gitea.server_url/g' \
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"$dest"
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log_info " Migrated: ${local_name}"
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done
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# -------------------------------------------------------------------------
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# Step 5: Commit and push
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# Configure git user for the commit (required for fresh clones)
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# -------------------------------------------------------------------------
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cd "$CLONE_DIR"
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git config user.name "Gitea Migration"
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git config user.email "migration@gitea.local"
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git add .gitea/
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git commit -q -m "Migrate workflows to Gitea Actions"
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git push -q origin HEAD
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cd "$SCRIPT_DIR"
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log_success "Workflows migrated for ${repo}"
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SUCCESS=$((SUCCESS + 1))
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done
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# ---------------------------------------------------------------------------
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# Known limitations — print as informational warnings
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# ---------------------------------------------------------------------------
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printf '\n'
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log_warn "Known limitations (review manually):"
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log_warn " - GitHub-specific marketplace actions may not work in Gitea"
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log_warn " - Self-hosted runner tool caches may differ from GitHub-hosted"
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log_warn " - OIDC/secrets need to be re-configured in Gitea repo settings"
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# ---------------------------------------------------------------------------
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# Summary
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# ---------------------------------------------------------------------------
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printf '\n'
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TOTAL=${#REPOS[@]}
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log_info "Results: ${SUCCESS} migrated, ${SKIPPED} skipped, ${FAILED} failed (out of ${TOTAL})"
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if [[ $FAILED -gt 0 ]]; then
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log_error "Some repos failed — check logs above"
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exit 1
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fi
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log_success "Phase 5 complete — pipelines migrated"
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