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mccaffers
/ server.conf
Created
September 25, 2025 16:45
QuestDB Maximum Performance Configuration. This configuration maximises performance at the expense of memory usage for QuestDB
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| # QuestDB Maximum Performance Configuration | |
| # WARNING: This configuration maximizes performance at the expense of memory usage | |
| # Ensure you have sufficient RAM and CPU cores before applying these settings | |
| # =========================================== | |
| # SHARED WORKER CONFIGURATION (CRITICAL) | |
| # =========================================== | |
| # Set to number of CPU cores (or slightly less to leave cores for OS) | |
| # Running on a 94 core machine, so we set to 32 to leave room for OS and other tasks | |
| shared.worker.count=32 |
mccaffers
/ git_commit_hash_into_plist_xcode_build_phase.sh
Created
May 5, 2025 15:19
This script updates an iOS app's Info.plist file with the current Git commit hash, creating the GitCommitHashApp key if it doesn't already exist. Useful for reference the git hash inside the Swift application.
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| INFO_PLIST="${TARGET_BUILD_DIR}"/"${INFOPLIST_PATH}" | |
| # Get the GIT hashes | |
| searchOpsApp=$(git rev-parse --short HEAD) | |
| # Query and save the value; suppress any error message, if key not found. | |
| valueApp=$(/usr/libexec/PlistBuddy -c 'print :GitCommitHashApp' "${INFO_PLIST}" 2>/dev/null) | |
| # Check if value is empty | |
| if [ -z "$valueApp" ] |
mccaffers
/ elasticsearch-aws-ami-al2023.sh
Last active
September 29, 2025 07:50
This script installs Elasticsearch and Kibana on Amazon Linux 2023. It configures the repositories, installs the software, sets it to start on boot, and resets the elastic user password for initial access.
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| #!/bin/bash | |
| # This script installs Elasticsearch and Kibana on Amazon Linux 2023 | |
| # It configures the repositories, installs the software, sets it to start on boot, | |
| # and resets the elastic user password for initial access | |
| ## Step 1: Import the Elasticsearch GPG Key for package verification | |
| # This ensures packages are downloaded from a trusted source | |
| rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch |
mccaffers
/ screenshot-every-minute-macos.sh
Last active
April 4, 2025 19:15
Bash script to take a screenshot on macOS every minute, converts to webp
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| # Take a screenshot on macOS every minute | |
| # converts the screenshot to webp to reduce file size | |
| while :; | |
| do | |
| name=$(date +%m\-%d\-%y\_%H.%M.%S); | |
| screencapture -m -D 1 -t png ~/Desktop/screenshots/$name.png; | |
| convert ~/Desktop/screenshots/$name.png ~/Desktop/screenshots/$name.webp; | |
| rm -rf ~/Desktop/screenshots/$name.png; | |
| sleep 60; | |
| done |
mccaffers
/ ios-unit-test.sh
Last active
September 2, 2024 14:53
Unit test iOS from the command line
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| # Wipe the simulators | |
| xcrun simctl erase all | |
| # Run the unit tests | |
| xcodebuild -scheme TestProject \ | |
| -destination 'platform=iOS Simulator,name=iPhone 15,OS=latest' \ | |
| -resultBundlePath TestResult/ \ | |
| -enableCodeCoverage YES \ | |
| clean build test \ | |
| CODE_SIGN_IDENTITY="" CODE_SIGNING_REQUIRED=NO |
mccaffers
/ convert.sh
Last active
April 4, 2025 19:16
ffmpeg commands to convert simulator recorded video for iCloud Developer upload
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| ffmpeg -i ./sim2.mp4 -crf 28 -an simrecording.mp4 |
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| 'use strict' | |
| import http from "https"; | |
| import zlib from "zlib"; | |
| /* global atob */ | |
| function queryString (kvPairs) { | |
| const result = [] | |
| for (let key in kvPairs) { |
mccaffers
/ dismiss-multiple-sheets-snippet.swift
Last active
April 4, 2025 19:16
SwiftUI - Dismiss multiple sheets (modals) at once
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| // Swiftui Tricks | |
| // Dimiss multiple sheets | |
| if let firstScene = UIApplication.shared.connectedScenes.first as? UIWindowScene { | |
| if let firstWindow = firstScene.windows.first { | |
| let viewController = firstWindow.rootViewController | |
| viewController?.dismiss(animated: true) | |
| } | |
| } |