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#include "cli.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "common.h"
#include "version.h"
static void print_version() {
printf("ducc v%s\n", DUCC_VERSION);
}
CliArgs* parse_cli_args(int argc, char** argv) {
const char* output_filename = NULL;
int positional_arguments_start = -1;
bool opt_c = false;
bool opt_E = false;
bool opt_MMD = false;
StrArray include_dirs;
strings_init(&include_dirs);
for (int i = 1; i < argc; ++i) {
if (argv[i][0] != '-') {
positional_arguments_start = i;
break;
}
char c = argv[i][1];
if (c == 'g') {
// ignore
} else if (c == 'O') {
// ignore
} else if (c == 'W') {
// ignore
} else if (c == 'M' && argv[i][2] == '\0') {
// ignore -M
} else if (c == 'I') {
const char* dir = NULL;
if (argv[i][2] != '\0') {
// -Ipath format
dir = argv[i] + 2;
} else if (argc > i + 1) {
// -I path format
dir = argv[i + 1];
++i;
} else {
fatal_error("-I requires directory");
}
strings_push(&include_dirs, dir);
} else if (c == 'o') {
if (argc <= i + 1) {
fatal_error("-o requires filename");
}
output_filename = argv[i + 1];
++i;
} else if (c == 'c') {
opt_c = true;
} else if (c == 'E') {
opt_E = true;
} else if (strcmp(argv[i], "-MMD") == 0) {
opt_MMD = true;
} else if (strcmp(argv[i], "--version") == 0) {
print_version();
exit(0);
} else if (strcmp(argv[i], "--std=gnu23") == 0) {
// ignore --std=gnu23
} else {
fatal_error("unknown option: %s", argv[i]);
}
}
if (positional_arguments_start == -1) {
fatal_error("usage: ducc <file>");
}
CliArgs* a = calloc(1, sizeof(CliArgs));
a->input_filename = argv[positional_arguments_start];
a->output_filename = output_filename;
a->output_assembly = !output_filename || str_ends_with(output_filename, ".s");
a->only_compile = opt_c;
a->preprocess_only = opt_E;
a->totally_deligate_to_gcc = false;
a->gcc_command = NULL;
a->generate_deps = opt_MMD;
a->include_dirs = include_dirs;
if (!a->only_compile && str_ends_with(a->input_filename, ".o")) {
a->totally_deligate_to_gcc = true;
StrBuilder builder;
strbuilder_init(&builder);
strbuilder_append_string(&builder, "gcc ");
for (int i = 1; i < argc; ++i) {
strbuilder_append_char(&builder, '\'');
strbuilder_append_string(&builder, argv[i]);
strbuilder_append_char(&builder, '\'');
if (i != argc - 1) {
strbuilder_append_char(&builder, ' ');
}
}
a->gcc_command = builder.buf;
}
return a;
}
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