@clickup/pg-microsharding/dist/internal/lastLines.js

Microshards support for PostgreSQL

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.lastLines = lastLines;
/**
 * Returns the last count lines of out, each truncated to maxLineLength
 * characters, with an ellipsis if the line is truncated. Performance is almost
 * independent on out size, given that count is constant.
 */
function lastLines(out, count, maxLineLength) {
    const lines = [];
    let posNewline1 = out.lastIndexOf("\n");
    let posNewline2 = out.length;
    while (posNewline2 >= 0 && lines.length < count) {
        const line = out.substring(posNewline1 + 1, posNewline2).trimEnd();
        if (line.length > 0) {
            lines.unshift(line.length <= maxLineLength
                ? line
                : line.substring(0, maxLineLength - 1) + "…");
        }
        posNewline2 = posNewline1;
        posNewline1 = out.lastIndexOf("\n", posNewline2 - 1);
    }
    return lines.join("\n");
}
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