mirror of
https://github.com/kuhyx/testsAndMisc.git
synced 2026-11-10 21:47:02 +01:00
Krzysztof kuhy Rudnicki
51e3945507
620 -> 163, with common.sh staying the single entry point that sources its own three parts - the shape the handoff prescribes for config.sh, so all 49 consumers are untouched. Verified by diffing `declare -F` after sourcing it against the same from a detached worktree at HEAD: an identical 48-function set. For a library this widely sourced that is the check that matters, not a passing lint. The FOCUS_APPS_* arrays moved with is_focus_app_running, the only function that reads them. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011w2Pj4Ek3ZNMQVYcFHgXDY
238 lines
6.2 KiB
Bash
Executable File
238 lines
6.2 KiB
Bash
Executable File
#!/bin/bash
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# Date, time, uptime and boot-time helpers.
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#
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# Sourced by common.sh, which stays the single entry point every script
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# sources -- 49 of them, so the public surface must not change.
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# =============================================================================
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# EFFICIENT TIME FUNCTIONS (zero-fork bash builtins)
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# =============================================================================
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# These functions use printf '%(...)'T' bash builtin (NO external commands)
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# to avoid fork-storm anti-patterns in polling scripts.
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# See: .github/skills/efficient-polling-scripts/SKILL.md
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# Get current Unix timestamp (seconds since epoch)
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# Usage: ts=$(get_timestamp)
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# FORK-FREE: uses bash builtin printf %s (sec_since_epoch)
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get_timestamp() {
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printf '%(%s)T' -1
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}
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# Get current date in YYYY-MM-DD format
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# Usage: date=$(get_date)
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get_date() {
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printf '%(%Y-%m-%d)T' -1
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}
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# Get current time in HH:MM:SS format
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# Usage: time=$(get_time)
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get_time() {
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printf '%(%H:%M:%S)T' -1
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}
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# Get current date-time in YYYY-MM-DD HH:MM:SS format
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# Usage: dt=$(get_datetime)
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get_datetime() {
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printf '%(%Y-%m-%d %H:%M:%S)T' -1
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}
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# Get day of week (1=Monday, 7=Sunday)
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# Usage: dow=$(get_day_of_week)
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get_day_of_week() {
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printf '%(%u)T' -1
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}
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# Get day name (Monday, Tuesday, ...)
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# Usage: day=$(get_day_name)
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get_day_name() {
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printf '%(%A)T' -1
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}
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# Get current hour (00-23)
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# Usage: hour=$(get_hour)
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get_hour() {
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printf '%(%H)T' -1
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}
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# Get current minute (00-59)
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# Usage: minute=$(get_minute)
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get_minute() {
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printf '%(%M)T' -1
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}
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# Get current second (00-59)
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# Usage: second=$(get_second)
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get_second() {
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printf '%(%S)T' -1
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}
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# Get Unix timestamp from boot (uptime in seconds)
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# Usage: boot_seconds=$(get_uptime_seconds)
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get_uptime_seconds() {
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read -r uptime_with_fraction _ </proc/uptime
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printf '%.*f\n' 0 "$uptime_with_fraction"
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}
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# Get boot time in YYYY-MM-DD HH:MM:SS format
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# Usage: boot_time=$(get_boot_datetime)
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# Calculates: current_time - uptime_seconds
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get_boot_datetime() {
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local uptime_seconds
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uptime_seconds=$(get_uptime_seconds)
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local boot_ts=$(($(get_timestamp) - uptime_seconds))
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printf '%(%Y-%m-%d %H:%M:%S)T' "$boot_ts"
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}
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# Get boot time date only (YYYY-MM-DD)
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# Usage: boot_date=$(get_boot_date)
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get_boot_date() {
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local uptime_seconds
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uptime_seconds=$(get_uptime_seconds)
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local boot_ts=$(($(get_timestamp) - uptime_seconds))
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printf '%(%Y-%m-%d)T' "$boot_ts"
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}
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# Get boot time hour only (00-23)
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# Usage: boot_hour=$(get_boot_hour)
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get_boot_hour() {
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local uptime_seconds
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uptime_seconds=$(get_uptime_seconds)
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local boot_ts=$(($(get_timestamp) - uptime_seconds))
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printf '%(%H)T' "$boot_ts"
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}
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# Check if current time is within a given hour range
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# Usage: if is_hour_in_range 5 8; then ... # 5AM-8AM
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is_hour_in_range() {
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local start_hour=$1
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local end_hour=$2
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local current_hour
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current_hour=$(get_hour)
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local current_hour_num=$((10#$current_hour))
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[[ $current_hour_num -ge $start_hour ]] && [[ $current_hour_num -lt $end_hour ]]
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}
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# Check if current day is a specific day of week
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# Usage: if is_day_of_week 1 5 6 7; then ... # Monday, Friday, Saturday, Sunday
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is_day_of_week() {
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local target_day
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target_day=$(get_day_of_week)
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for day in "$@"; do
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[[ $target_day -eq $day ]] && return 0
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done
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return 1
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}
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# =============================================================================
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# INTERACTIVE PROMPTS
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# =============================================================================
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# Ask yes/no question, returns 0 for yes, 1 for no
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# Usage: if ask_yes_no "Continue?"; then ...
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ask_yes_no() {
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local prompt="$1"
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local ans
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read -r -p "$prompt [y/N]: " ans || true
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case "${ans:-}" in
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y | Y | yes | YES) return 0 ;;
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*) return 1 ;;
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esac
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}
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# Check if a command is available
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# Usage: if has_cmd git; then ...
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has_cmd() {
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command -v "$1" >/dev/null 2>&1
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}
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# =============================================================================
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# STANDARD SETUP HEADER
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# =============================================================================
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# Print a standard setup header for scripts
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# Usage: print_setup_header "Script Name"
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print_setup_header() {
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local title="$1"
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local current_datetime
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current_datetime=$(get_datetime)
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echo "$title"
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printf '=%.0s' $(seq 1 ${#title})
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echo ""
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echo "Current Date: $current_datetime"
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echo "User: $USER"
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echo "Original user: $(get_actual_user)"
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if [[ $INTERACTIVE_MODE == "true" ]]; then
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echo "Mode: Interactive (prompts enabled)"
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else
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echo "Mode: Automatic (auto-yes, use --interactive for prompts)"
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fi
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}
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# =============================================================================
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# MOUNT/UNMOUNT HELPERS (for hosts guard and similar)
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# =============================================================================
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# Count mount layers for a path
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# Usage: count=$(mount_layers_count "/etc/hosts")
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mount_layers_count() {
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local target="$1"
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awk -v t="$target" '$5==t{c++} END{print c+0}' /proc/self/mountinfo 2>/dev/null || echo 0
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}
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# Collapse all bind mount layers for a path
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# Usage: collapse_mounts "/etc/hosts" [max_iterations]
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collapse_mounts() {
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local target="$1"
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local max_iter="${2:-20}"
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local i=0
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if has_cmd mountpoint; then
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while mountpoint -q "$target"; do
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umount -l "$target" >/dev/null 2>&1 || break
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i=$((i + 1))
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((i >= max_iter)) && break
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done
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else
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local cnt
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cnt=$(mount_layers_count "$target")
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while ((cnt > 1)); do
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umount -l "$target" >/dev/null 2>&1 || break
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i=$((i + 1))
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((i >= max_iter)) && break
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cnt=$(mount_layers_count "$target")
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done
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fi
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}
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# =============================================================================
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# RESOLUTION/FORMAT VALIDATION
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# =============================================================================
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# Validate resolution format (WIDTHxHEIGHT)
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# Usage: if validate_resolution "1920x1080"; then ...
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validate_resolution() {
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local res="$1"
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[[ $res =~ ^[0-9]+x[0-9]+$ ]]
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}
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# Generate output filename with suffix
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# Usage: output=$(generate_output_filename "input.jpg" "_resized")
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generate_output_filename() {
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local input="$1"
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local suffix="$2"
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local ext="${3:-}"
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local basename dirname filename extension
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basename=$(basename "$input")
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dirname=$(dirname "$input")
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filename="${basename%.*}"
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extension="${basename##*.}"
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# Handle files without extension
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if [[ $filename == "$extension" ]]; then
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extension="${ext:-jpg}"
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fi
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echo "${dirname}/${filename}${suffix}.${extension}"
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}
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