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https://github.com/NixOS/nixpkgs.git
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85 lines
2.6 KiB
Bash
Executable File
85 lines
2.6 KiB
Bash
Executable File
#!/usr/bin/env nix-shell
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#! nix-shell -i bash -p curl jq git gnused gnugrep
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# executing this script without arguments will
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# - find the newest stable plex-desktop version avaiable on snapcraft (https://snapcraft.io/plex-desktop)
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# - read the current plex-desktop version from the current nix expression
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# - update the nix expression if the versions differ
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# - try to build the updated version, exit if that fails
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# - give instructions for upstreaming
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# As an optional argument you can specify the snapcraft channel to update to.
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# Default is `stable` and only stable updates should be pushed to nixpkgs. For
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# testing you may specify `candidate` or `edge`.
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channel="${1:-stable}" # stable/candidate/edge
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nixpkgs="$(git rev-parse --show-toplevel)"
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plex_nix="$nixpkgs/pkgs/by-name/pl/plex-desktop/package.nix"
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#
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# find the newest stable plex-desktop version avaiable on snapcraft
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#
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# create bash array from snap info
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snap_info=($(
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curl -s -H 'X-Ubuntu-Series: 16' \
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"https://api.snapcraft.io/api/v1/snaps/details/plex-desktop?channel=$channel" \
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| jq --raw-output \
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'.revision,.download_sha512,.version,.last_updated'
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))
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# "revision" is the actual version identifier on snapcraft, the "version" is
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# just for human consumption. Revision is just an integer that gets increased
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# by one every (stable or unstable) release.
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revision="${snap_info[0]}"
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# We need to escape the slashes
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hash="$(nix-hash --to-sri --type sha512 ${snap_info[1]} | sed 's|/|\\/|g')"
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upstream_version="${snap_info[2]}"
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last_updated="${snap_info[3]}"
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echo "Latest $channel release is $upstream_version from $last_updated."
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#
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# read the current plex-desktop version from the currently *committed* nix expression
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#
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current_version=$(
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grep 'version\s*=' "$plex_nix" \
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| sed -Ene 's/.*"(.*)".*/\1/p'
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)
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echo "Current version: $current_version"
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#
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# update the nix expression if the versions differ
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#
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if [[ "$current_version" == "$upstream_version" ]]; then
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echo "Plex is already up-to-date"
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exit 0
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fi
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echo "Updating from ${current_version} to ${upstream_version}, released on ${last_updated}"
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# search-and-replace revision, hash and version
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sed --regexp-extended \
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-e 's/rev\s*=\s*"[0-9]+"\s*;/rev = "'"${revision}"'";/' \
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-e 's/hash\s*=\s*"[^"]*"\s*;/hash = "'"${hash}"'";/' \
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-e 's/version\s*=\s*".*"\s*;/version = "'"${upstream_version}"'";/' \
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-i "$plex_nix"
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#
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# try to build the updated version
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#
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export NIXPKGS_ALLOW_UNFREE=1
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if ! nix-build -A plex-desktop "$nixpkgs"; then
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echo "The updated plex-desktop failed to build."
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exit 1
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fi
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# Commit changes
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git add "$plex_nix"
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git commit -m "plex-desktop: ${current_version} -> ${upstream_version}"
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