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| 1 | const io = @import("std").io; |
| 2 | const os = @import("std").os; |
| 3 | const heap = @import("std").mem; |
| 4 | |
| 5 | // TODO: OutSteam and InStream interface |
| 6 | // TODO: move allocator to heap namespace |
| 7 | |
| 8 | error InvalidArgument; |
| 9 | error MissingArg0; |
| 10 | |
| 11 | pub fn main() -> %void { |
| 12 | if (internal_main()) |_| { |
| 13 | return; |
| 14 | } else |err| { |
| 15 | if (err == error.InvalidArgument) { |
| 16 | io.stderr.printf("\n") %% return err; |
| 17 | printUsage(&io.stderr) %% return err; |
| 18 | } else { |
| 19 | io.stderr.printf("{}\n", err) %% return err; |
| 20 | } |
| 21 | return err; |
| 22 | } |
| 23 | } |
| 24 | |
| 25 | pub fn internal_main() -> %void { |
| 26 | var args_it = os.args(); |
| 27 | |
| 28 | var incrementing_allocator = heap.IncrementingAllocator.init(10 * 1024 * 1024) %% |err| { |
| 29 | io.stderr.printf("Unable to allocate memory") %% {}; |
| 30 | return err; |
| 31 | }; |
| 32 | defer incrementing_allocator.deinit(); |
| 33 | |
| 34 | const allocator = &incrementing_allocator.allocator; |
| 35 | |
| 36 | const arg0 = %return (args_it.next(allocator) ?? error.MissingArg0); |
| 37 | defer allocator.free(arg0); |
| 38 | |
| 39 | %return printUsage(&io.stdout); |
| 40 | } |
| 41 | |
| 42 | fn printUsage(outstream: &io.OutStream) -> %void { |
| 43 | %return outstream.write( |
| 44 | \\Usage: zig [command] [options] |
| 45 | \\Commands: |
| 46 | \\ build build project from build.zig |
| 47 | \\ build-exe [source] create executable from source or object files |
| 48 | \\ build-lib [source] create library from source or object files |
| 49 | \\ build-obj [source] create object from source or assembly |
| 50 | \\ parsec [source] convert c code to zig code |
| 51 | \\ targets list available compilation targets |
| 52 | \\ test [source] create and run a test build |
| 53 | \\ version print version number and exit |
| 54 | \\ zen print zen of zig and exit |
| 55 | \\Compile Options: |
| 56 | \\ --assembly [source] add assembly file to build |
| 57 | \\ --cache-dir [path] override the cache directory |
| 58 | \\ --color [auto|off|on] enable or disable colored error messages |
| 59 | \\ --enable-timing-info print timing diagnostics |
| 60 | \\ --libc-include-dir [path] directory where libc stdlib.h resides |
| 61 | \\ --name [name] override output name |
| 62 | \\ --output [file] override destination path |
| 63 | \\ --output-h [file] override generated header file path |
| 64 | \\ --pkg-begin [name] [path] make package available to import and push current pkg |
| 65 | \\ --pkg-end pop current pkg |
| 66 | \\ --release-fast build with optimizations on and safety off |
| 67 | \\ --release-safe build with optimizations on and safety on |
| 68 | \\ --static output will be statically linked |
| 69 | \\ --strip exclude debug symbols |
| 70 | \\ --target-arch [name] specify target architecture |
| 71 | \\ --target-environ [name] specify target environment |
| 72 | \\ --target-os [name] specify target operating system |
| 73 | \\ --verbose turn on compiler debug output |
| 74 | \\ --verbose-link turn on compiler debug output for linking only |
| 75 | \\ --verbose-ir turn on compiler debug output for IR only |
| 76 | \\ --zig-install-prefix [path] override directory where zig thinks it is installed |
| 77 | \\ -dirafter [dir] same as -isystem but do it last |
| 78 | \\ -isystem [dir] add additional search path for other .h files |
| 79 | \\ -mllvm [arg] additional arguments to forward to LLVM's option processing |
| 80 | \\Link Options: |
| 81 | \\ --ar-path [path] set the path to ar |
| 82 | \\ --dynamic-linker [path] set the path to ld.so |
| 83 | \\ --each-lib-rpath add rpath for each used dynamic library |
| 84 | \\ --libc-lib-dir [path] directory where libc crt1.o resides |
| 85 | \\ --libc-static-lib-dir [path] directory where libc crtbegin.o resides |
| 86 | \\ --msvc-lib-dir [path] (windows) directory where vcruntime.lib resides |
| 87 | \\ --kernel32-lib-dir [path] (windows) directory where kernel32.lib resides |
| 88 | \\ --library [lib] link against lib |
| 89 | \\ --library-path [dir] add a directory to the library search path |
| 90 | \\ --linker-script [path] use a custom linker script |
| 91 | \\ --object [obj] add object file to build |
| 92 | \\ -L[dir] alias for --library-path |
| 93 | \\ -rdynamic add all symbols to the dynamic symbol table |
| 94 | \\ -rpath [path] add directory to the runtime library search path |
| 95 | \\ -mconsole (windows) --subsystem console to the linker |
| 96 | \\ -mwindows (windows) --subsystem windows to the linker |
| 97 | \\ -municode (windows) link with unicode |
| 98 | \\ -framework [name] (darwin) link against framework |
| 99 | \\ -mios-version-min [ver] (darwin) set iOS deployment target |
| 100 | \\ -mmacosx-version-min [ver] (darwin) set Mac OS X deployment target |
| 101 | \\ --ver-major [ver] dynamic library semver major version |
| 102 | \\ --ver-minor [ver] dynamic library semver minor version |
| 103 | \\ --ver-patch [ver] dynamic library semver patch version |
| 104 | \\Test Options: |
| 105 | \\ --test-filter [text] skip tests that do not match filter |
| 106 | \\ --test-name-prefix [text] add prefix to all tests |
| 107 | \\ --test-cmd [arg] specify test execution command one arg at a time |
| 108 | \\ --test-cmd-bin appends test binary path to test cmd args |
| 109 | \\ |
| 110 | ); |
| 111 | %return outstream.flush(); |
| 112 | } |
Andrew Kelley <andrew@ziglang.org> 2017-10-21 17:31:06-04:00