a4d3b78cdb
First step toward an autoload-style lazy loader for the 499-file source tree (current cold load ~1s wall / 340ms user-time per CLI invocation, mostly spent sourcing files the command never calls). This commit only measures — no behaviour change unless LP_LOAD_TRACE=1. LP_LOAD_TRACE=1 instrumentation (scripts/source/loading/initilize_files.sh): Wraps each in the main file-list loop with EPOCHREALTIME before/after, writes `<elapsed_ms>\t<file_relpath>` to $LP_LOAD_TRACE_FILE (default /tmp/libreportal-load-trace.<pid>.log). Zero overhead when the env var is unset (one [[ test per file). libreportal debug load-trace [cmd...]: New `debug` CLI category. Spawns a child `libreportal <args>` (default 'help') with LP_LOAD_TRACE=1, then awk-aggregates the trace: wall vs cumulative source time, file count, top-15 hottest files. The diff between wall and cumulative-source = bash startup + dispatch + the command's own work. Used in the next phases to (a) validate that the lazy loader actually delivers the speedup we expect and (b) flag any single file that hogs disproportionate time (rare `heredoc | sed | base64` style work at source time would show up here as a >10ms entry). Signed-off-by: librelad <librelad@digitalangels.vip>
74 lines
2.9 KiB
Bash
Executable File
74 lines
2.9 KiB
Bash
Executable File
#!/bin/bash
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sourceInitilize()
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{
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local flag="$1"
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# We will only show the header for the full app
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if [[ $flag == "run" ]]; then
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isHeader "Loading LibrePortal Startup Files"
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isNotice "If you are experiencing loading issues..."
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isNotice "Please run the following : 'libreportal reset'"
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fi
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# Directory containing the files to source recursively
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local file_list_directory="${install_scripts_dir}source/files"
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# Check if the directory exists
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if [ -d "$file_list_directory" ]; then
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# Use find to get a list of all files (excluding directories) in the directory and its subdirectories
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local file_list=$(find "$file_list_directory" -type f -name "*.sh")
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# Loop through each file in the file list
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while IFS= read -r file; do
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# Source the file
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source "$file"
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done <<< "$file_list"
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else
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echo "Directory $file_list_directory does not exist. Unable to start!"
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fi
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# For loading files needed for the full app or CLI
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if [[ $flag == "run" ]]; then
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source "${install_scripts_dir}source/files/app_files.sh"
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files_to_source=("${files_libreportal_app[@]}")
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elif [[ $flag == "cli" ]]; then
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source "${install_scripts_dir}source/files/cli_files.sh"
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files_to_source=("${files_libreportal_cli[@]}")
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fi
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# Checking for missing files. If LP_LOAD_TRACE=1, every source is timed
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# and logged to ${LP_LOAD_TRACE_FILE:-/tmp/libreportal-load-trace.<pid>.log}
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# — used by `libreportal debug load-trace` to pinpoint where the startup
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# second goes. Each line: <elapsed_ms>\t<file_relpath>. Zero overhead when
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# the env var is not set (one `[[` per file).
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if [[ "$LP_LOAD_TRACE" == "1" ]]; then
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: "${LP_LOAD_TRACE_FILE:=/tmp/libreportal-load-trace.$$.log}"
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export LP_LOAD_TRACE_FILE
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: > "$LP_LOAD_TRACE_FILE"
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fi
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for file_to_source in "${files_to_source[@]}"; do
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if [ ! -f "${install_scripts_dir}${file_to_source}" ]; then
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isNotice "Missing file: ${install_scripts_dir}${file_to_source}"
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else
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if [[ "$LP_LOAD_TRACE" == "1" ]]; then
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local _t0=$EPOCHREALTIME
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source "${install_scripts_dir}${file_to_source}"
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local _t1=$EPOCHREALTIME
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# ms with 3 decimals. EPOCHREALTIME is `<sec>.<usec>`; awk
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# handles the float arithmetic without needing bc.
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local _ms
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_ms=$(awk -v a="$_t0" -v b="$_t1" 'BEGIN{printf "%.3f", (b-a)*1000}')
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printf '%s\t%s\n' "$_ms" "$file_to_source" >> "$LP_LOAD_TRACE_FILE"
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else
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source "${install_scripts_dir}${file_to_source}"
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fi
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fi
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done
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# Loading of all files
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sourceScanFiles "libreportal_configs";
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sourceScanFiles "app_configs";
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sourceScanFiles "containers";
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}
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