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basic support for specifying packages at the command line

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See #226
This commit is contained in:
Andrew Kelley
2017-05-01 16:35:10 -04:00
parent 17b935325e
commit 3cbd0065fa
7 changed files with 112 additions and 7 deletions
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68
src/main.cpp
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@@ -36,6 +36,8 @@ static int usage(const char *arg0) {
" --name [name] override output name\n"
" --output [file] override destination path\n"
" --output-h [file] override generated header file path\n"
" --pkg-begin [name] [path] make package available to import and push current pkg\n"
" --pkg-end pop current pkg\n"
" --release build with optimizations on and debug protection off\n"
" --static output will be statically linked\n"
" --strip exclude debug symbols\n"
@@ -121,6 +123,36 @@ enum Cmd {
static const char *default_zig_cache_name = "zig-cache";
struct CliPkg {
const char *name;
const char *path;
ZigList<CliPkg *> children;
CliPkg *parent;
};
static void add_package(CodeGen *g, CliPkg *cli_pkg, PackageTableEntry *pkg) {
for (size_t i = 0; i < cli_pkg->children.length; i += 1) {
CliPkg *child_cli_pkg = cli_pkg->children.at(i);
Buf *dirname = buf_alloc();
Buf *basename = buf_alloc();
os_path_split(buf_create_from_str(child_cli_pkg->path), dirname, basename);
PackageTableEntry *child_pkg = codegen_create_package(g, buf_ptr(dirname), buf_ptr(basename));
auto entry = pkg->package_table.put_unique(buf_create_from_str(child_cli_pkg->name), child_pkg);
if (entry) {
PackageTableEntry *existing_pkg = entry->value;
Buf *full_path = buf_alloc();
os_path_join(&existing_pkg->root_src_dir, &existing_pkg->root_src_path, full_path);
fprintf(stderr, "Unable to add package '%s'->'%s': already exists as '%s'\n",
child_cli_pkg->name, child_cli_pkg->path, buf_ptr(full_path));
exit(EXIT_FAILURE);
}
add_package(g, child_cli_pkg, child_pkg);
}
}
int main(int argc, char **argv) {
os_init();
@@ -168,6 +200,7 @@ int main(int argc, char **argv) {
size_t ver_patch = 0;
bool timing_info = false;
const char *cache_dir = nullptr;
CliPkg *cur_pkg = allocate<CliPkg>(1);
if (argc >= 2 && strcmp(argv[1], "build") == 0) {
const char *zig_exe_path = arg0;
@@ -309,13 +342,31 @@ int main(int argc, char **argv) {
} else if (arg[1] == 'L' && arg[2] != 0) {
// alias for --library-path
lib_dirs.append(&arg[2]);
} else if (strcmp(arg, "--pkg-begin") == 0) {
if (i + 2 >= argc) {
fprintf(stderr, "Expected 2 arguments after --pkg-begin\n");
return usage(arg0);
}
CliPkg *new_cur_pkg = allocate<CliPkg>(1);
i += 1;
new_cur_pkg->name = argv[i];
i += 1;
new_cur_pkg->path = argv[i];
new_cur_pkg->parent = cur_pkg;
cur_pkg->children.append(new_cur_pkg);
cur_pkg = new_cur_pkg;
} else if (strcmp(arg, "--pkg-end") == 0) {
if (cur_pkg->parent == nullptr) {
fprintf(stderr, "Encountered --pkg-end with no matching --pkg-begin\n");
return EXIT_FAILURE;
}
cur_pkg = cur_pkg->parent;
} else if (i + 1 >= argc) {
fprintf(stderr, "Expected another argument after %s\n", arg);
return usage(arg0);
} else {
i += 1;
if (i >= argc) {
return usage(arg0);
} else if (strcmp(arg, "--output") == 0) {
if (strcmp(arg, "--output") == 0) {
out_file = argv[i];
} else if (strcmp(arg, "--output-h") == 0) {
out_file_h = argv[i];
@@ -327,6 +378,7 @@ int main(int argc, char **argv) {
} else if (strcmp(argv[i], "off") == 0) {
color = ErrColorOff;
} else {
fprintf(stderr, "--color options are 'auto', 'on', or 'off'\n");
return usage(arg0);
}
} else if (strcmp(arg, "--name") == 0) {
@@ -421,11 +473,13 @@ int main(int argc, char **argv) {
if (!in_file) {
in_file = arg;
} else {
fprintf(stderr, "Unexpected extra parameter: %s\n", arg);
return usage(arg0);
}
break;
case CmdVersion:
case CmdTargets:
fprintf(stderr, "Unexpected extra parameter: %s\n", arg);
return usage(arg0);
case CmdInvalid:
zig_unreachable();
@@ -433,6 +487,11 @@ int main(int argc, char **argv) {
}
}
if (cur_pkg->parent != nullptr) {
fprintf(stderr, "Unmatched --pkg-begin\n");
return EXIT_FAILURE;
}
switch (cmd) {
case CmdBuild:
case CmdParseH:
@@ -579,6 +638,9 @@ int main(int argc, char **argv) {
if (out_file_h)
codegen_set_output_h_path(g, buf_create_from_str(out_file_h));
add_package(g, cur_pkg, g->root_package);
if (cmd == CmdBuild) {
for (size_t i = 0; i < objects.length; i += 1) {
codegen_add_object(g, buf_create_from_str(objects.at(i)));