73 lines
2.1 KiB
Bash
73 lines
2.1 KiB
Bash
#!/usr/bin/env bash
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set -euo pipefail
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: "${FILE:?FILE is required}"
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: "${LATEST_RELEASE_URL:?LATEST_RELEASE_URL is required}"
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: "${DOWNLOAD_URL_TEMPLATE:?DOWNLOAD_URL_TEMPLATE is required}"
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if command -v python >/dev/null 2>&1; then
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PYTHON_BIN=python
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elif command -v python3 >/dev/null 2>&1; then
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PYTHON_BIN=python3
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else
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echo "python is required but was not found"
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exit 1
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fi
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version_strip_prefix="${LATEST_VERSION_STRIP_PREFIX:-v}"
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release_tag_template="${RELEASE_TAG_TEMPLATE:-{version}}"
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release_tag_template="${release_tag_template//$'\r'/}"
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current_version=$($PYTHON_BIN - <<'PY'
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import re
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import os
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p=os.environ["FILE"]
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s=open(p).read()
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m=re.search(r'version\s*=\s*"([^"]+)";', s)
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print(m.group(1) if m else "")
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PY
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)
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latest_version=$(curl -fsSLI -o /dev/null -w '%{url_effective}' "$LATEST_RELEASE_URL" \
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| sed -E 's#.*/##')
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if [ -n "$version_strip_prefix" ]; then
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latest_version="${latest_version#${version_strip_prefix}}"
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fi
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echo "current=$current_version"
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echo "latest=$latest_version"
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if [ -z "$latest_version" ] || [ "$latest_version" = "$current_version" ]; then
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echo "updated=false" >> "$GITHUB_OUTPUT"
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exit 0
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fi
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download_url="${DOWNLOAD_URL_TEMPLATE//\{version\}/$latest_version}"
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new_hash=$(nix store prefetch-file --json "$download_url" | "$PYTHON_BIN" -c 'import json,sys; print(json.load(sys.stdin)["hash"])')
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export LATEST_VERSION="$latest_version"
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export NEW_HASH="$new_hash"
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"$PYTHON_BIN" - <<'PY'
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import os
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import re
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p=os.environ["FILE"]
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s=open(p).read()
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s=re.sub(r'version\s*=\s*"[^"]+"', f'version = "{os.environ["LATEST_VERSION"]}"', s, count=1)
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s=re.sub(r'hash\s*=\s*"[^"]+"', f'hash = "{os.environ["NEW_HASH"]}"', s, count=1)
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open(p,"w").write(s)
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PY
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release_tag="${release_tag_template//\{version\}/$latest_version}"
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release_tag="${release_tag#\{}"
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release_tag="${release_tag%\}}"
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release_tag="${release_tag#\'}"
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release_tag="${release_tag%\'}"
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release_url="${LATEST_RELEASE_URL%/latest}/tag/${release_tag}"
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echo "updated=true" >> "$GITHUB_OUTPUT"
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echo "version=$latest_version" >> "$GITHUB_OUTPUT"
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echo "previous_version=$current_version" >> "$GITHUB_OUTPUT"
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echo "release_url=$release_url" >> "$GITHUB_OUTPUT"
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