WIP fast agents

Author: brianseeders

.buildkite/scripts/run-agents.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+set -euo pipefail
+
+AGENT_WORKSPACE="$(cd .. && pwd)/agent-workspace"
+mkdir -p "$AGENT_WORKSPACE"
+
+cp -R .buildkite/scripts/run-agents/hooks "$AGENT_WORKSPACE/"
+
+cd "$AGENT_WORKSPACE"
+
+cp "$BUILDKITE_CONFIG_PATH" .
+CONFIG_FILE="$(basename "$BUILDKITE_CONFIG_PATH")"
+
+cat <<EOF >> "$CONFIG_FILE"
+build-path=$AGENT_WORKSPACE/builds
+disconnect-after-idle-timeout=600
+hooks-path=$AGENT_WORKSPACE/hooks
+disconnect-after-job=false
+cancel-grace-period=300
+EOF
+
+buildkite-agent start --queue elasticsearch-quick-agent --spawn-per-cpu 1

.buildkite/scripts/run-agents/git

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+if [[ "${1:-}" == "submodule" ]]; then exit 0; fi
+
+"$ES_ORIGINAL_GIT_BINARY" "${@}"

.buildkite/scripts/run-agents/hooks/post-checkout

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+git sparse-checkout init --cone
+git sparse-checkout set .buildkite
+
+if [[ -n "${ES_PARTIAL_CHECKOUT_PATHS:-}" ]]; then
+  git sparse-checkout add "$ES_PARTIAL_CHECKOUT_PATHS"
+fi
+
+git checkout HEAD

.buildkite/scripts/run-agents/hooks/pre-checkout

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+DIR="$(cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd)"
+
+ES_ORIGINAL_GIT_BINARY=$(which git)
+export ES_ORIGINAL_GIT_BINARY
+
+mkdir -p "$HOME/git-wrapper"
+cp "$DIR/../git" "$HOME/git-wrapper/"
+chmod +x "$HOME/git-wrapper/git"
+
+export PATH="$HOME/git-wrapper:$PATH"
+
+export BUILDKITE_GIT_CLONE_FLAGS="-v --filter=blob:none --no-checkout --depth=1 --sparse"
+export BUILDKITE_GIT_FETCH_FLAGS="-v --update-shallow"