fish-shell/src/trace.cpp

#include "config.h"  // IWYU pragma: keep

#include "trace.h"

#include <deque>
#include <string>

#include "common.h"
#include "flog.h"
#include "parser.h"

static bool do_trace = false;

void trace_set_enabled(bool do_enable) { do_trace = do_enable; }

bool trace_enabled(const parser_t &parser) {
    const auto &ld = parser.libdata();
    if (ld.suppress_fish_trace) return false;
    return do_trace;
}

/// Trace an "argv": a list of arguments where the first is the command.
void trace_argv(const parser_t &parser, const wchar_t *command, const wcstring_list_t &argv) {
    // Format into a string to prevent interleaving with flog in other threads.
    // Add the + prefix.
    wcstring trace_text(parser.blocks().size() - 1, L'-');
    trace_text.push_back(L'>');

    if (command && command[0]) {
        trace_text.push_back(L' ');
        trace_text.append(command);
    }
    for (const wcstring &arg : argv) {
        trace_text.push_back(L' ');
        trace_text.append(escape_string(arg));
    }
    trace_text.push_back(L'\n');
    log_extra_to_flog_file(trace_text);
}

void trace_if_enabled(const parser_t &parser, const wchar_t *command, const wcstring_list_t &argv) {
    if (trace_enabled(parser)) trace_argv(parser, command, argv);
}