51 lines
2.2 KiB
Bash
Executable File
51 lines
2.2 KiB
Bash
Executable File
#!/bin/bash
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# T3 Code publishes electron-builder's update feed beside every release, so the
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# newest version costs one small request. Each feed's checksum is a base64
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# SHA-512 and makepkg wants hex SHA-256, so a release that is actually new still
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# has to be downloaded once per architecture to hash -- hence the version check
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# before the fetch.
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set -euo pipefail
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FEED_URL="https://github.com/pingdotgg/t3code/releases/latest/download/latest-linux.yml"
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RELEASE_URL="https://github.com/pingdotgg/t3code/releases/download"
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feed=$(curl -fsSL "$FEED_URL")
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version=$(awk '/^version:/ { print $2; exit }' <<<"$feed" | tr -d '"'\''')
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asset=$(awk '/^path:/ { print $2; exit }' <<<"$feed" | tr -d '"'\''')
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if [[ -z "$version" || -z "$asset" ]]; then
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echo "Upstream feed carried no version or asset name" >&2
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exit 1
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fi
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current=$(awk -F= '/^pkgver=/ { print $2; exit }' PKGBUILD)
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if [[ -n "$current" ]] && [[ "$(vercmp "$version" "$current")" -le 0 ]]; then
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echo '{}'
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exit 0
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fi
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# The PKGBUILD builds fixed asset names, so a feed naming anything else --
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# a rename, or an arm64 build reaching the Linux feed first -- has to stop the
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# sync rather than pin that file's checksum to a URL nobody will fetch.
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expected="T3-Code-${version}-x86_64.AppImage"
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if [[ "$asset" != "$expected" ]]; then
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echo "Upstream feed names $asset, but the PKGBUILD builds $expected" >&2
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exit 1
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fi
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# Pin the ARM feed to the same release, so a partially published release or a
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# latest-release change cannot mix versions between architectures.
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arm_feed=$(curl -fsSL "$RELEASE_URL/v${version}/latest-linux-arm64.yml")
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arm_version=$(awk '/^version:/ { print $2; exit }' <<<"$arm_feed" | tr -d '"'\''')
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arm_asset=$(awk '/^path:/ { print $2; exit }' <<<"$arm_feed" | tr -d '"'\''')
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if [[ "$arm_version" != "$version" || "$arm_asset" != "T3-Code-${version}-arm64.AppImage" ]]; then
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echo "Upstream ARM feed does not match T3-Code-${version}-arm64.AppImage" >&2
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exit 1
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fi
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sha256=$(curl -fsSL "$RELEASE_URL/v${version}/${asset}" | sha256sum | cut -d' ' -f1)
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arm_sha256=$(curl -fsSL "$RELEASE_URL/v${version}/${arm_asset}" | sha256sum | cut -d' ' -f1)
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jq -n --arg pkgver "$version" --arg sha256 "$sha256" --arg arm_sha256 "$arm_sha256" \
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'{pkgver: $pkgver, sha256sums: {x86_64: [$sha256], aarch64: [$arm_sha256]}}'
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