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Graphviz Odin dependencies
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| package main | |
| import "core:fmt" | |
| import "core:io" | |
| import "core:odin/ast" | |
| import "core:odin/parser" | |
| import "core:os" | |
| import "core:path/filepath" | |
| import "core:slice" | |
| import "core:strings" | |
| Graph :: struct { | |
| packages: map[string]^Package, | |
| entry: ^Package, | |
| } | |
| Package :: struct { | |
| name: string, | |
| fullpath: string, | |
| imports: [dynamic]^Package, | |
| } | |
| Visitor :: struct { | |
| pkg: ^ast.Package, | |
| graph: ^Graph, | |
| gpkg: ^Package, | |
| collections: map[string]string, | |
| } | |
| main :: proc() { | |
| if len(os.args) < 2 { | |
| error("`%v` takes a package as its first argument.", os.args[0]) | |
| } | |
| package_path := os.args[1] | |
| graph: Graph | |
| visitor: Visitor | |
| visitor.graph = &graph | |
| visitor.collections["base"] = ODIN_ROOT + "base" | |
| visitor.collections["core"] = ODIN_ROOT + "core" | |
| visitor.collections["vendor"] = ODIN_ROOT + "vendor" | |
| visitor.collections["shared"] = ODIN_ROOT + "shared" | |
| fill_graph(&visitor, package_path) | |
| s := strings.builder_make() | |
| write_graph(strings.to_stream(&s), graph) | |
| fmt.println(strings.to_string(s)) | |
| } | |
| write_graph :: proc(s: io.Stream, g: Graph) { | |
| ws :: io.write_string | |
| ws(s, "digraph deps {\n") | |
| for _, pkg in g.packages { | |
| write_package(s, pkg^) | |
| } | |
| ws(s, "}\n") | |
| } | |
| write_package :: proc(s: io.Stream, pkg: Package) { | |
| ws :: io.write_string | |
| for dep in pkg.imports { | |
| ws(s, "\t") | |
| ws(s, pkg.name) | |
| ws(s, " -> ") | |
| ws(s, dep.name) | |
| ws(s, ";\n") | |
| } | |
| } | |
| fill_graph :: proc(gv: ^Visitor, start_pkg: string) { | |
| parse_ok: bool | |
| gv.pkg, parse_ok = parser.parse_package_from_path(start_pkg) | |
| if !parse_ok { | |
| error("Could not parse package %q.", start_pkg) | |
| } | |
| pkg := new(Package) | |
| pkg.name = gv.pkg.name | |
| pkg.fullpath = gv.pkg.fullpath | |
| gv.graph.entry = pkg | |
| gv.graph.packages[gv.pkg.fullpath] = pkg | |
| gv.gpkg = pkg | |
| { | |
| runtime := new(Package) | |
| runtime.name = "runtime" | |
| runtime.fullpath = filepath.join({ODIN_ROOT + "base", "runtime"}) | |
| gv.graph.packages[runtime.fullpath] = runtime | |
| } | |
| { | |
| builtin := new(Package) | |
| builtin.name = "builtin" | |
| builtin.fullpath = filepath.join({ODIN_ROOT + "base", "builtin"}) | |
| gv.graph.packages[builtin.fullpath] = builtin | |
| } | |
| { | |
| intrinsics := new(Package) | |
| intrinsics.name = "intrinsics" | |
| intrinsics.fullpath = filepath.join({ODIN_ROOT + "base", "intrinsics"}) | |
| gv.graph.packages[intrinsics.fullpath] = intrinsics | |
| } | |
| v := ast.Visitor{ | |
| visit = visit, | |
| data = gv, | |
| } | |
| ast.walk(&v, gv.pkg) | |
| } | |
| visit :: proc(v: ^ast.Visitor, node: ^ast.Node) -> ^ast.Visitor { | |
| if node == nil { | |
| return nil | |
| } | |
| gv := (^Visitor)(v.data) | |
| #partial switch n in node.derived { | |
| case ^ast.Package, ^ast.File: return v | |
| case ^ast.Import_Decl: | |
| import_path := n.fullpath[1:len(n.fullpath)-1] | |
| if colon := strings.index_byte(import_path, ':'); colon >= 0 { | |
| if colon == 0 || colon == len(import_path)-1 { | |
| error("Invalid import path %q", import_path) | |
| } | |
| collection := import_path[:colon] | |
| pkg := import_path[colon+1:] | |
| if path, has_collection := gv.collections[collection]; has_collection { | |
| import_path = filepath.join({gv.collections[collection], pkg}) | |
| } else { | |
| error("Unknown collection %q", collection) | |
| } | |
| } else { | |
| import_path = filepath.join({gv.pkg.fullpath, import_path}) | |
| } | |
| abs, found := filepath.abs(import_path) | |
| if !found { | |
| error("Could not get absolute path of %q", import_path) | |
| } | |
| if pkg, has_pkg := gv.graph.packages[import_path]; has_pkg { | |
| if !slice.contains(gv.gpkg.imports[:], pkg) { | |
| append(&gv.gpkg.imports, pkg) | |
| } | |
| } else { | |
| npkg := new(Package) | |
| npkg.fullpath = import_path | |
| append(&gv.gpkg.imports, npkg) | |
| gv.graph.packages[import_path] = npkg | |
| prev_ast_pkg := gv.pkg | |
| prev_pkg := gv.gpkg | |
| gv.gpkg = npkg | |
| defer { | |
| gv.gpkg = prev_pkg | |
| gv.pkg = prev_ast_pkg | |
| } | |
| parse_ok: bool | |
| gv.pkg, parse_ok = parser.parse_package_from_path(import_path) | |
| if !parse_ok { | |
| error("Parsing package %q failed", import_path) | |
| } | |
| npkg.name = gv.pkg.name | |
| ast.walk(v, gv.pkg) | |
| } | |
| } | |
| return nil | |
| } | |
| error :: proc(msg: string, args: ..any) -> ! { | |
| fmt.eprint("ERROR: ") | |
| fmt.eprintf(msg, ..args) | |
| fmt.eprintln() | |
| os.exit(1) | |
| } |
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