diff --git a/src/main.cpp b/src/main.cpp index b2cfbe018..d8b866e83 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -2221,20 +2221,30 @@ gb_internal void remove_temp_files(lbGenerator *gen) { } -gb_internal void print_show_help(String const arg0, String command, String optional_flag = {}) { +gb_internal int print_show_help(String const arg0, String command, String optional_flag = {}) { + bool help_resolved = false; + bool printed_usage_header = false; + bool printed_flags_header = false; + if (command == "help" && optional_flag.len != 0 && optional_flag[0] != '-') { command = optional_flag; optional_flag = {}; } - print_usage_line(0, "%.*s is a tool for managing Odin source code.", LIT(arg0)); - print_usage_line(0, "Usage:"); - print_usage_line(1, "%.*s %.*s [arguments]", LIT(arg0), LIT(command)); - print_usage_line(0, ""); - defer (print_usage_line(0, "")); - + auto const print_usage_header_once = [&help_resolved, &printed_usage_header, arg0, command]() { + if (printed_usage_header) { + return; + } + print_usage_line(0, "%.*s is a tool for managing Odin source code.", LIT(arg0)); + print_usage_line(0, "Usage:"); + print_usage_line(1, "%.*s %.*s [arguments]", LIT(arg0), LIT(command)); + print_usage_line(0, ""); + help_resolved = true; + printed_usage_header = true; + }; if (command == "build") { + print_usage_header_once(); print_usage_line(1, "build Compiles directory of .odin files as an executable."); print_usage_line(2, "One must contain the program's entry point, all must be in the same package."); print_usage_line(2, "Use `-file` to build a single file instead."); @@ -2243,6 +2253,7 @@ gb_internal void print_show_help(String const arg0, String command, String optio print_usage_line(3, "odin build Builds package in ."); print_usage_line(3, "odin build filename.odin -file Builds single-file package, must contain entry point."); } else if (command == "run") { + print_usage_header_once(); print_usage_line(1, "run Same as 'build', but also then runs the newly compiled executable."); print_usage_line(2, "Append an empty flag and then the args, '-- ', to specify args for the output."); print_usage_line(2, "Examples:"); @@ -2250,25 +2261,31 @@ gb_internal void print_show_help(String const arg0, String command, String optio print_usage_line(3, "odin run Builds and runs package in ."); print_usage_line(3, "odin run filename.odin -file Builds and runs single-file package, must contain entry point."); } else if (command == "check") { + print_usage_header_once(); print_usage_line(1, "check Parses and type checks directory of .odin files."); print_usage_line(2, "Examples:"); print_usage_line(3, "odin check . Type checks package in current directory."); print_usage_line(3, "odin check Type checks package in ."); print_usage_line(3, "odin check filename.odin -file Type checks single-file package, must contain entry point."); } else if (command == "test") { + print_usage_header_once(); print_usage_line(1, "test Builds and runs procedures with the attribute @(test) in the initial package."); } else if (command == "doc") { + print_usage_header_once(); print_usage_line(1, "doc Generates documentation from a directory of .odin files."); print_usage_line(2, "Examples:"); print_usage_line(3, "odin doc . Generates documentation on package in current directory."); print_usage_line(3, "odin doc Generates documentation on package in ."); print_usage_line(3, "odin doc filename.odin -file Generates documentation on single-file package."); } else if (command == "version") { + print_usage_header_once(); print_usage_line(1, "version Prints version."); } else if (command == "strip-semicolon") { + print_usage_header_once(); print_usage_line(1, "strip-semicolon"); print_usage_line(2, "Parses and type checks .odin file(s) and then removes unneeded semicolons from the entire project."); } else if (command == "bundle") { + print_usage_header_once(); print_usage_line(1, "bundle Bundles a directory in a specific layout for that platform"); print_usage_line(2, "Supported platforms:"); print_usage_line(3, "android"); @@ -2293,13 +2310,10 @@ gb_internal void print_show_help(String const arg0, String command, String optio check = true; } - print_usage_line(0, ""); - print_usage_line(1, "Flags"); - print_usage_line(0, ""); - auto const print_flag = [&optional_flag](char const *flag) -> bool { + auto const print_flag = [&optional_flag, &help_resolved, &printed_flags_header, print_usage_header_once](char const *flag) -> bool { if (optional_flag.len != 0) { String f = make_string_c(flag); isize i = string_index_byte(f, ':'); @@ -2310,6 +2324,14 @@ gb_internal void print_show_help(String const arg0, String command, String optio return false; } } + print_usage_header_once(); + if (!printed_flags_header) { + print_usage_line(0, ""); + print_usage_line(1, "Flags"); + print_usage_line(0, ""); + printed_flags_header = true; + } + help_resolved = true; print_usage_line(0, ""); print_usage_line(1, flag); return true; @@ -2867,6 +2889,21 @@ gb_internal void print_show_help(String const arg0, String command, String optio print_usage_line(2, "If this is omitted, the terminal will prompt you to provide it."); } } + + if (!help_resolved) { + usage(arg0); + print_usage_line(0, ""); + if (command == "help") { + print_usage_line(0, "'%.*s' is not a recognized flag.", LIT(optional_flag)); + } else { + print_usage_line(0, "'%.*s' is not a recognized command.", LIT(command)); + } + return 1; + } + + print_usage_line(0, ""); + + return 0; } gb_internal void print_show_unused(Checker *c) { @@ -3354,8 +3391,7 @@ int main(int arg_count, char const **arg_ptr) { usage(args[0]); return 1; } else { - print_show_help(args[0], args[1], args[2]); - return 0; + return print_show_help(args[0], args[1], args[2]); } } else if (command == "bundle") { if (args.count < 4) { @@ -3441,8 +3477,7 @@ int main(int arg_count, char const **arg_ptr) { } if (build_context.show_help) { - print_show_help(args[0], command); - return 0; + return print_show_help(args[0], command); } if (command == "bundle") {