Initial commit

.gitignore

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+*.annot
+*.cmo
+*.cma
+*.cmi
+*.a
+*.o
+*.cmx
+*.cmxs
+*.cmxa
+
+# ocamlbuild working directory
+_build/
+
+# ocamlbuild targets
+*.byte
+*.native
+
+# oasis generated files
+setup.data
+setup.log
+
+# Merlin configuring file for Vim and Emacs
+.merlin
+
+# Dune generated files
+*.install
+
+# Local OPAM switch
+_opam/
+notes
+*DS_Store

Makefile

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+all: build
+
+build: 
+	@dune build @all
+	cp -f _build/default/mkocaml.exe /usr/local/bin/mkocaml
+
+install:
+	@dune install 
+
+test: build
+	@dune runtest
+
+doc: build
+	@opam install odoc
+	@dune build @doc
+
+clean:
+	@dune clean
+

README.md

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+# 🐪 Mkocaml
+
+A simple helper I use to generate OCaml projects.
+
+This tool generates:
+  * Git repository
+  * Git ignore
+  * Executable/Library
+  * Makefile with no nonsense commands
+  * Copy of the executable to `/usr/local/bin`
+
+I constantly find myself struggling to remember `dune` commands for
+various tasks. This project is intended to solve that.
+
+
+# Example
+Creating a new executable
+
+    > mkocaml -e new
+    > make
+    > new
+    Hello, World!

dune

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+(executable
+ (name mkocaml))

dune-project

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+(lang dune 1.11)

mkocaml.ml

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+let lib_name = ref ""
+let exe_name = ref ""
+
+let bad_arg arg =
+  raise @@ Arg.Bad (Format.sprintf "Unrecognized argument: %s" arg)
+
+let usage =
+  Format.sprintf "Usage: %s [-l name] [-e name]" Sys.argv.(0)
+
+let specs = [
+  "-l", Arg.Set_string lib_name, ": Creates a library with the given name";
+  "-e", Arg.Set_string exe_name, ": Creates an executable with the given name";
+]
+
+let makefile project project_type =
+  let copy_exe = match project_type with
+  | `Exec -> "\t@cp -f _build/default/bin/main.exe /usr/local/bin/" ^ project
+  | _     -> ""
+  in
+  Format.sprintf
+"all: build
+
+build: 
+\t@dune build @all
+%s
+
+install:
+\t@dune install
+
+test: build
+\t@dune runtest
+
+doc: build
+\t@opam install odoc
+\t@dune build @doc
+  
+clean:
+\t@dune clean
+
+publish:
+\t@opam pin .
+\t@opam publish .
+" 
+  copy_exe
+
+let opam project =
+  Format.sprintf
+"
+opam-version: \"2.0\"
+version: \"1.0\"
+authors: \"Chris Nevers <[email protected]>\"
+maintainer: \"Chris Nevers <[email protected]>\"
+homepage: \"https://github.com/chrisnevers/%s\"
+bug-reports: \"https://github.com/chrisnevers/%s/issues\"
+dev-repo: \"git://github.com/chrisnevers/%s.git\"
+synopsis: \"\"
+build: [
+  [\"dune\" \"subst\"] {pinned}
+  [\"dune\" \"build\" \"-p\" name \"-j\" jobs]
+]
+
+depends: [
+  \"dune\" {build}
+  \"alcotest\" {with-test}
+]
+"
+project project project
+
+let gitignore = 
+"
+*.annot
+*.cmo
+*.cma
+*.cmi
+*.a
+*.o
+*.cmx
+*.cmxs
+*.cmxa
+
+# ocamlbuild working directory
+_build/
+
+# ocamlbuild targets
+*.byte
+*.native
+
+# oasis generated files
+setup.data
+setup.log
+
+# Merlin configuring file for Vim and Emacs
+.merlin
+
+# Dune generated files
+*.install
+
+# Local OPAM switch
+_opam/
+notes
+*DS_Store
+"
+
+let setup_opam project =
+  match Sys.file_exists (project ^ ".opam") with
+  | true -> ()
+  | false ->
+    let chan = open_out (project ^ ".opam") in
+    output_string chan (opam project);
+    close_out chan;
+    let _ = Sys.command "dune build @install" in 
+    ()
+
+let setup_exe project =
+  let _ = Format.sprintf "mkdir -p bin && cd bin && dune init exec %s" project 
+          |> Sys.command in
+  begin match Sys.file_exists "Makefile" with
+  | true -> ()
+  | false ->
+    let chan = open_out "Makefile" in
+    output_string chan (makefile project `Exec);
+    close_out chan
+  end;
+  setup_opam project
+
+let setup_lib project =
+  let _ = Format.sprintf 
+            "mkdir -p lib && cd lib && dune init lib %s && mv ../dune . && touch %s.ml" 
+            project project
+          |> Sys.command in
+  begin match Sys.file_exists "Makefile" with
+  | true -> ()
+  | false ->
+    let chan = open_out "Makefile" in
+    output_string chan (makefile project `Lib);
+    close_out chan
+  end;
+  setup_opam project
+
+let setup_git () =
+  let _ = Sys.command ("git init"); in
+  let chan = open_out ".gitignore" in
+  output_string chan gitignore;
+  close_out chan
+
+let () = 
+  Arg.parse specs bad_arg usage;
+  if String.length !lib_name > 0 then 
+    let _ = setup_git () in
+    setup_lib !lib_name
+  else 
+  if String.length !exe_name > 0 then 
+    let _ = setup_git () in
+    setup_exe !exe_name
+  else
+    print_endline usage