147 lines
4.1 KiB
Bash
147 lines
4.1 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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: "${DOWNLOAD_URL_TEMPLATE:?DOWNLOAD_URL_TEMPLATE is required}"
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: "${RELEASE_API_REPO:?RELEASE_API_REPO 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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"$PYTHON_BIN" - <<'PY'
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import os
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import re
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p=os.environ['FILE']
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s=open(p).read()
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s=re.sub(r'version\s*=\s*"[^"]+"', f'version = "{os.environ["LATEST_VERSION"]}"', s, count=1)
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s=re.sub(r'hash\s*=\s*"[^"]+"', f'hash = "{os.environ["NEW_HASH"]}"', s, count=1)
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open(p,'w').write(s)
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PY
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echo "updated=true" >> "$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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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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release_html=$(curl -fsSL "$release_url" || true)
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release_notes=""
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if [ -n "$release_html" ]; then
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release_notes=$(printf '%s' "$release_html" | "$PYTHON_BIN" -c '
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import re, sys
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from html.parser import HTMLParser
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html = sys.stdin.read()
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m = re.search(r"<div[^>]*data-test-selector=\"body-content\"[^>]*class=\"[^\"]*markdown-body[^\"]*\"[^>]*>(.*?)</div>", html, re.S)
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if not m:
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print("")
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raise SystemExit(0)
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fragment = m.group(1)
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class Extractor(HTMLParser):
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def __init__(self):
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super().__init__()
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self.out = []
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self.in_code = False
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def handle_starttag(self, tag, attrs):
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if tag in ("br",):
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self.out.append("\n")
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elif tag in ("p", "div", "h1", "h2", "h3", "h4", "h5", "h6", "li"):
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if self.out and not self.out[-1].endswith("\n"):
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self.out.append("\n")
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elif tag in ("pre",):
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if self.out and not self.out[-1].endswith("\n"):
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self.out.append("\n")
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self.out.append("```\n")
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self.in_code = True
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elif tag in ("code",) and not self.in_code:
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self.out.append("`")
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def handle_endtag(self, tag):
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if tag in ("p", "div", "li", "h1", "h2", "h3", "h4", "h5", "h6"):
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if not self.out or not self.out[-1].endswith("\n"):
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self.out.append("\n")
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elif tag in ("pre",):
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if not self.out or not self.out[-1].endswith("\n"):
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self.out.append("\n")
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self.out.append("```\n")
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self.in_code = False
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elif tag in ("code",) and not self.in_code:
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self.out.append("`")
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def handle_data(self, data):
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if data:
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self.out.append(data)
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parser = Extractor()
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parser.feed(fragment)
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text = "".join(parser.out)
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text = re.sub(r"\n{3,}", "\n\n", text)
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print(text.strip())
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' || true)
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else
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echo "warning: failed to fetch release page ${release_url}"
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fi
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if [ -z "$release_notes" ]; then
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release_notes="_No changelog found on upstream release page. Check ${release_url}._"
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fi
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delimiter="CHANGELOG_$(date +%s%N)"
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{
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echo "changelog<<${delimiter}"
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printf '%s\n' "$release_notes"
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echo "${delimiter}"
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} >> "$GITHUB_OUTPUT"
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