mirror of
https://github.com/ggerganov/llama.cpp.git
synced 2024-09-22 21:16:20 +00:00
407 lines
13 KiB
C++
407 lines
13 KiB
C++
#include "common.h"
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#include "llama.h"
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#include <cmath>
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#include <cstdio>
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#include <fstream>
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#include <string>
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#include <vector>
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#if defined(_WIN32)
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <shellapi.h> // For CommandLineToArgvW
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#endif
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static void print_usage_information(const char * argv0, FILE * stream) {
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fprintf(stream, "usage: %s [options]\n\n", argv0);
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fprintf(stream, "The tokenize program tokenizes a prompt using a given model,\n");
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fprintf(stream, "and prints the resulting tokens to standard output.\n\n");
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fprintf(stream, "It needs a model file, a prompt, and optionally other flags\n");
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fprintf(stream, "to control the behavior of the tokenizer.\n\n");
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fprintf(stream, " The possible options are:\n");
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fprintf(stream, "\n");
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fprintf(stream, " -h, --help print this help and exit\n");
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fprintf(stream, " -m MODEL_PATH, --model MODEL_PATH path to model.\n");
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fprintf(stream, " --ids if given, only print numerical token IDs, and not token strings.\n");
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fprintf(stream, " The output format looks like [1, 2, 3], i.e. parseable by Python.\n");
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fprintf(stream, " -f PROMPT_FNAME, --file PROMPT_FNAME read prompt from a file.\n");
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fprintf(stream, " -p PROMPT, --prompt PROMPT read prompt from the argument.\n");
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fprintf(stream, " --stdin read prompt from standard input.\n");
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fprintf(stream, " --no-bos do not ever add a BOS token to the prompt, even if normally the model uses a BOS token.\n");
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fprintf(stream, " --no-parse-special do not parse control tokens.\n");
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fprintf(stream, " --log-disable disable logs. Makes stderr quiet when loading the model.\n");
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fprintf(stream, " --show-count print the total number of tokens.\n");
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}
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static void llama_log_callback_null(ggml_log_level level, const char * text, void * user_data) {
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(void) level;
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(void) text;
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(void) user_data;
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}
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static std::string read_prompt_from_file(const char * filepath, bool & success) {
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success = false;
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std::ifstream in(filepath, std::ios::binary);
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if (!in) {
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fprintf(stderr, "%s: could not open file '%s' for reading: %s\n", __func__, filepath, strerror(errno));
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return std::string();
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}
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// do not assume the file is seekable (e.g. /dev/stdin)
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std::stringstream buffer;
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buffer << in.rdbuf();
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if (in.fail()) {
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fprintf(stderr, "%s: could not read the entire file '%s': %s\n", __func__, filepath, strerror(errno));
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return std::string();
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}
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success = true;
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return buffer.str();
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}
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//
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// Function: ingest_args(...) -> vector<string>
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//
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// Takes argc and argv arguments, and converts them to a vector of UTF-8 encoded
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// strings, as an STL vector<string>.
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//
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// In particular, it handles character encoding shenanigans on Windows.
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//
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// Note: raw_argc and raw_argv are not actually read at all on Windows.
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// On Windows we call GetCommandLineW to get the arguments in wchar_t
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// format, ignoring the regular argc/argv arguments to main().
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//
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// TODO: potential opportunity to roll common stuff into common/console.cpp
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// in relation to Windows wchar_t shenanigans.
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static std::vector<std::string> ingest_args(int raw_argc, char ** raw_argv) {
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std::vector<std::string> argv;
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// Handle Windows, if given non-ASCII arguments.
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// We convert wchar_t arguments into UTF-8 char* on this platform.
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// Lets you invoke 'tokenize' on Windows cmd.exe with non-ASCII characters
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// without throwing tantrums.
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#if defined(_WIN32)
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int argc;
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const LPWSTR cmdline_wargv = GetCommandLineW();
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LPWSTR * wargv = CommandLineToArgvW(cmdline_wargv, &argc);
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// silence unused arg warnings
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(void) raw_argc;
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(void) raw_argv;
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for (int i = 0; i < argc; ++i) {
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int length_needed = WideCharToMultiByte(CP_UTF8, 0, wargv[i], wcslen(wargv[i]), 0, 0, NULL, NULL);
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char * output_buf = (char *) calloc(length_needed+1, sizeof(char));
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GGML_ASSERT(output_buf);
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WideCharToMultiByte(CP_UTF8, 0, wargv[i], wcslen(wargv[i]), output_buf, length_needed, NULL, NULL);
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output_buf[length_needed] = '\0';
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argv.push_back(output_buf);
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free(output_buf);
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}
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LocalFree((HLOCAL) wargv);
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#else
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int argc = raw_argc;
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for (int i = 0; i < argc; ++i) {
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argv.push_back(raw_argv[i]);
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}
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#endif
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GGML_ASSERT((unsigned int) argc == argv.size());
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return argv;
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}
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//
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// Function: write_utf8_cstr_to_stdout(const char *) -> <writes to stdout>
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//
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// writes a string to standard output; taking into account that on Windows
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// to display correctly you have to use special handling. Works even if the
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// user has not set a unicode code page on a Windows cmd.exe.
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//
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// In case of invalid UTF-8, invalid_utf8 is set to true on Windows, and something
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// a human-readable is written instead.
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//
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// On non-Windows systems, simply printfs() the string.
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static void write_utf8_cstr_to_stdout(const char * str, bool & invalid_utf8) {
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invalid_utf8 = false;
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#if defined(_WIN32)
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// Are we in a console?
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HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
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DWORD dwMode = 0;
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// According to Microsoft docs:
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// "WriteConsole fails if it is used with a standard handle that is redirected to a file."
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// Also according to the docs, you can use GetConsoleMode to check for that.
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if (hConsole == INVALID_HANDLE_VALUE || !GetConsoleMode(hConsole, &dwMode)) {
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printf("%s", str);
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return;
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}
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// MultiByteToWideChar reports an error if str is empty, don't report
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// them as invalid_utf8.
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if (*str == 0) {
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return;
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}
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int length_needed = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, str, strlen(str), NULL, 0);
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if (length_needed == 0) {
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DWORD err = GetLastError();
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if (err == ERROR_NO_UNICODE_TRANSLATION) {
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invalid_utf8 = true;
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int len = strlen(str);
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printf("<");
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for (int i = 0; i < len; ++i) {
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if (i > 0) {
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printf(" ");
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}
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printf("%02x", (uint8_t) str[i]);
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}
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printf(">");
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return;
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}
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GGML_ABORT("MultiByteToWideChar() failed in an unexpected way.");
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}
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LPWSTR wstr = (LPWSTR) calloc(length_needed+1, sizeof(*wstr));
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GGML_ASSERT(wstr);
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MultiByteToWideChar(CP_UTF8, 0, str, strlen(str), wstr, length_needed);
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WriteConsoleW(hConsole, wstr, length_needed, NULL, NULL);
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free(wstr);
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#else
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// TODO: reporting invalid_utf8 would be useful on non-Windows too.
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// printf will silently just write bad unicode.
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printf("%s", str);
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#endif
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}
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int main(int raw_argc, char ** raw_argv) {
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const std::vector<std::string> argv = ingest_args(raw_argc, raw_argv);
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const int argc = argv.size();
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if (argc <= 1) {
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print_usage_information(argv[0].c_str(), stderr);
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return 1;
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}
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//////
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// Read out all the command line arguments.
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//////
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// variables where to put any arguments we see.
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bool printing_ids = false;
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bool no_bos = false;
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bool no_parse_special = false;
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bool disable_logging = false;
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bool show_token_count = false;
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const char * model_path = NULL;
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const char * prompt_path = NULL;
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const char * prompt_arg = NULL;
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// track which arguments were explicitly given
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// used for sanity checking down the line
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bool model_path_set = false;
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bool prompt_path_set = false;
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bool prompt_set = false;
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bool stdin_set = false;
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int iarg = 1;
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for (; iarg < argc; ++iarg) {
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std::string arg{argv[iarg]};
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if (arg == "-h" || arg == "--help") {
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print_usage_information(argv[0].c_str(), stdout);
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return 0;
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}
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else if (arg == "--ids") {
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printing_ids = true;
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}
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else if (arg == "-m" || arg == "--model") {
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if (model_path_set) {
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fprintf(stderr, "Error: -m or --model specified multiple times.\n");
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return 1;
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}
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model_path = argv[++iarg].c_str();
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model_path_set = true;
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}
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else if (arg == "--no-bos") {
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no_bos = true;
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}
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else if (arg == "--no-parse-special") {
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no_parse_special = true;
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}
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else if (arg == "-p" || arg == "--prompt") {
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if (prompt_set) {
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fprintf(stderr, "Error: -p or --prompt specified multiple times.\n");
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return 1;
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}
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prompt_arg = argv[++iarg].c_str();
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prompt_set = true;
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}
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else if (arg == "-f" || arg == "--file") {
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if (prompt_path_set) {
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fprintf(stderr, "Error: -f or --file specified multiple times.\n");
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return 1;
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}
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prompt_path = argv[++iarg].c_str();
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prompt_path_set = true;
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}
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else if (arg == "--stdin") {
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stdin_set = true;
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}
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else if (arg == "--log-disable") {
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disable_logging = true;
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}
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else if (arg == "--show-count") {
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show_token_count = true;
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}
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else {
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fprintf(stderr, "Error: unknown option '%s'\n", argv[iarg].c_str());
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return 1;
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}
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}
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//////
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// Sanity check the command line arguments.
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//////
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// Check that we have the required stuff set.
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if (model_path_set && model_path == NULL) {
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fprintf(stderr, "Error: --model requires an argument.\n");
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return 1;
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}
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if (!model_path_set) {
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fprintf(stderr, "Error: must specify --model.\n");
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return 1;
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}
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if (prompt_path_set && prompt_path == NULL) {
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fprintf(stderr, "Error: --file requires an argument.\n");
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return 1;
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}
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if (prompt_set && prompt_arg == NULL) {
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fprintf(stderr, "Error: --prompt requires an argument.\n");
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return 1;
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}
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const int prompts_set = !!(prompt_path_set) + !!(prompt_set) + !!(stdin_set);
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if (prompts_set > 1) {
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fprintf(stderr, "Error: --stdin, --file and --prompt are mutually exclusive.\n");
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return 1;
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}
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// Must have some prompt.
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if (prompts_set == 0) {
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fprintf(stderr, "Error: must specify one of: --stdin, --file or --prompt.\n");
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return 1;
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}
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GGML_ASSERT(model_path);
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GGML_ASSERT(prompt_path || prompt_arg || stdin_set);
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//////
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// Figure out where will the prompt come from.
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//////
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std::string prompt;
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if (prompt_path_set) {
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bool success = false;
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prompt = read_prompt_from_file(prompt_path, success);
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if (!success) {
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return 1;
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}
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} else if (prompt_set) {
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prompt = prompt_arg;
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} else {
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GGML_ASSERT(stdin_set);
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// we read stdin *after* loading model (early exit if model cannot
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// be loaded, which can be a nicer user experience)
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}
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//////
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// Start actually doing the tokenizing stuff.
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//////
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#ifdef LOG_DISABLE_LOGS
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disable_logging = true;
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#endif
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if (disable_logging) {
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llama_log_set(llama_log_callback_null, NULL);
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}
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llama_backend_init();
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llama_model_params model_params = llama_model_default_params();
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model_params.vocab_only = true;
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llama_model * model = llama_load_model_from_file(model_path, model_params);
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if (!model) {
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fprintf(stderr, "Error: could not load model from file '%s'.\n", model_path);
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return 1;
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}
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llama_context_params ctx_params = llama_context_default_params();
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llama_context * ctx = llama_new_context_with_model(model, ctx_params);
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if (!ctx) {
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fprintf(stderr, "Error: could not create context.\n");
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return 1;
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}
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// read entire prompt from stdin?
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if (stdin_set) {
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GGML_ASSERT(!prompt_path_set && !prompt_set);
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std::stringstream stdin_buffer;
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stdin_buffer << std::cin.rdbuf();
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if (std::cin.fail()) {
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fprintf(stderr, "Error: could not read the entire standard input.\n");
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return 1;
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}
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prompt = stdin_buffer.str();
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}
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const bool model_wants_add_bos = llama_add_bos_token(model);
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const bool add_bos = model_wants_add_bos && !no_bos;
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const bool parse_special = !no_parse_special;
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std::vector<llama_token> tokens;
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tokens = ::llama_tokenize(model, prompt, add_bos, parse_special);
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if (printing_ids) {
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printf("[");
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}
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for (int i = 0; i < (int) tokens.size(); i++) {
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if (printing_ids) {
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if (i > 0) {
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printf(", ");
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}
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printf("%d", tokens[i]);
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} else {
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bool invalid_utf8 = false;
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printf("%6d -> '", tokens[i]);
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write_utf8_cstr_to_stdout(llama_token_to_piece(ctx, tokens[i]).c_str(), invalid_utf8);
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if (invalid_utf8) {
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printf("' (utf-8 decode failure)\n");
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} else {
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printf("'\n");
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}
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}
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}
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if (printing_ids) {
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printf("]\n");
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}
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if (show_token_count) {
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printf("Total number of tokens: %ld\n", tokens.size());
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}
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// silence valgrind
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llama_free(ctx);
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llama_free_model(model);
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return 0;
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}
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