parca: add update script (#397377)

    cp -r ${ui}/share/parca/ui/* ui/packages/app/web/build

  '';

  passthru = {

    inherit ui;

    updateScript = ./update.sh;

  };

  meta = {

    mainProgram = "parca";

    description = "Continuous profiling for analysis of CPU and memory usage";

#!/usr/bin/env nix-shell

#!nix-shell -I nixpkgs=./. -i bash -p curl jq git pnpm_9

# shellcheck shell=bash

set -euo pipefail

nixpkgs="$(pwd)"

cd $(readlink -e $(dirname "${BASH_SOURCE[0]}"))

# Update the hash of the parca source code in the Nix expression.

update_parca_source() {

    local version; version="$1"

    echo "Updating parca source"

    old_version="$(nix eval --json --impure --expr "(import $nixpkgs/default.nix {}).parca.version" | jq -r)"

    sed -i "s|${old_version}|${version}|g" package.nix

    old_hash="$(nix eval --json --impure --expr "(import $nixpkgs/default.nix {}).parca.src.outputHash" | jq -r)"

    new_hash="$(nix-build --impure --expr "let src = (import $nixpkgs/default.nix {}).parca.src; in (src.overrideAttrs or (f: src // f src)) (_: { outputHash = \"\"; outputHashAlgo = \"sha256\"; })" 2>&1 | tr -s ' ' | grep -Po "got: \K.+$")" || true

    sed -i "s|${old_hash}|${new_hash}|g" package.nix

}

# Update the hash of the parca ui pnpm dependencies in the Nix expression.

update_pnpm_deps_hash() {

    echo "Updating parca ui pnpm deps hash"

    old_hash="$(nix eval --json --impure --expr "(import $nixpkgs/default.nix {}).parca.ui.pnpmDeps.outputHash" | jq -r)"

    new_hash="$(nix-build --impure --expr "let src = (import $nixpkgs/default.nix {}).parca.ui.pnpmDeps; in (src.overrideAttrs or (f: src // f src)) (_: { outputHash = \"\"; outputHashAlgo = \"sha256\"; })" 2>&1 | tr -s ' ' | grep -Po "got: \K.+$")" || true

    sed -i "s|${old_hash}|${new_hash}|g" package.nix

}

# Update the hash of the parca go dependencies in the Nix expression.

update_go_deps_hash() {

    echo "Updating parca go deps hash"

    old_hash="$(nix eval --json --impure --expr "(import $nixpkgs/default.nix {}).parca.vendorHash" | jq -r)"

    new_hash="$(nix-build --impure --expr "let src = (import $nixpkgs/default.nix {}).parca; in (src.overrideAttrs { vendorHash = \"\"; })" 2>&1 | tr -s ' ' | grep -Po "got: \K.+$")" || true

    sed -i "s|${old_hash}|${new_hash}|g" package.nix

}

LATEST_TAG="$(curl -s ${GITHUB_TOKEN:+-u ":$GITHUB_TOKEN"} https://api.github.com/repos/parca-dev/parca/releases/latest | jq -r '.tag_name')"

LATEST_VERSION="$(expr "$LATEST_TAG" : 'v\(.*\)')"

CURRENT_VERSION="$(nix eval --json --impure --expr "(import $nixpkgs/default.nix {}).parca.version" | jq -r)"

if [[ "$CURRENT_VERSION" == "$LATEST_VERSION" ]]; then

    echo "parca is up to date: ${CURRENT_VERSION}"

    exit 0

fi

update_parca_source "$LATEST_VERSION"

update_pnpm_deps_hash

update_go_deps_hash