compodb

#!/bin/bash

curdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" &> /dev/null && pwd)"

take_greater_version() {
    for i in $(find "$1" -path "*/$2"); do
        printf '%s' "$i "
        echo "$i" | tr -dc '0-9'
        echo ""
    done | sort -k2 -n -r | head -n1 | cut -d " " -f1
}

fix_compodb() {
    local include_name
    for include_name in 'iostream' 'bits/c++config.h'; do
        local ipath="$(take_greater_version '/usr/include' "$include_name")"
        ipath="${ipath%/$include_name}"
        sed -i "s|\"command\":[ \t]\+\"[a-zA-Z+/]\+|& -isystem $ipath|g" "$curdir/compile_commands.json"
    done
}

down_with_error() {
    echo -e "Error: $1"
    exit 1
}

builddir="$1"
shift

[ -z "$builddir" ] && down_with_error "Missing build dir argument"
[ ! -d "$builddir" ] && down_with_error "Build directory does not exist"

cmake "$curdir" -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -B "$builddir" "$@" &> /dev/null || down_with_error "CMake command failed"
yes | cp -f "$builddir"/compile_commands.json "$curdir" &> /dev/null

fix_compodb