donnieparka
defmodule Createproj do
@moduledoc """
Documentation for `Createproj`.
"""
def print_help do
IO.puts(
"Usage: newP" <>
" -f filepath: creates a new project\n" <>
"-b: adds boilerplate\n"
)
end
def write_boilerplate(project_name) do
file_name = project_name <> ".ex"
file_path = Path.join([project_name, file_name])
boilerplate = "defmodule #{project_name} do\nend"
File.write(file_path, boilerplate, [:append])
end
def get_filename(args) do
Enum.with_index(args)
|> Enum.find(fn {arg, index} -> arg == "-f" and index < length(args) - 1 end)
|> case do
{_, index} ->
Enum.at(args, index + 1)
{nil} ->
nil
end
end
def create_folder(project_name, file_name \\ "") do
folder_path = Path.join([project_name, file_name])
File.mkdir(folder_path)
|> case do
:ok -> IO.puts("created#{folder_path}")
{_, _} -> IO.puts("failed to make #{file_name}")
end
end
def main(args) do
IO.inspect(args)
new_file = Enum.member?(args, "-f")
boilerplate = Enum.member?(args, "-b")
cond do
new_file and not boilerplate ->
project_name = get_filename(args)
create_folder(project_name)
create_folder(project_name, "/lib")
create_folder(project_name, "/test")
new_file and boilerplate ->
project_name = get_filename(args)
create_folder(project_name)
create_folder(project_name, "/lib")
create_folder(project_name, "/test")
write_boilerplate(project_name)
true ->
print_help()
end
end
end
compilation works great but when I run:
~/projects ./createproj -f dio -b
** (MatchError) no match of right hand side value: "dio"
(createproj 0.1.0) lib/createproj.ex:33: Createproj.main/1
(elixir 1.18.1) lib/kernel/cli.ex:137: anonymous fn/3 in Kernel.CLI.exec_fun/2
If I run it from the iex like this:
Createproj.main(["-f", "cane", "-b"])
["-f", "cane", "-b"]
createdcane
createdcane/lib
createdcane/test
:ok
as you can see everything works… any idea what’s going on?
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Eiji
I have tried this in newly generated project. I have only added
escript: [main_module: Createproj]toKeywordreturned inprojectfunction insidemix.exsand it works as expected. We would need something more to see where is the problem as for now I cannot reproduce it.al2o3cr
Line 33 of what you posted isn’t in
mainand couldn’t raise aMatchErroranyways:My guess is that a compiled version of
Createprojis running, confusing the situation.donnieparka
what else can i provide to help you understand? i already had that line in mix.exs so i am even more confused now
donnieparka
i rebooted and run it but still happens so it is impossible
dimitarvp
IMO you’re better off publishing a GitHub project demonstrating the issue at this point.
al2o3cr
The BEAM caches compiled bytecode to disk when it reads
.exfiles, so rebooting will not make a difference. Usually the advice is to remove the_buildfolder, but I’m not sure where that lives for escripts.sodapopcan
Heh, ya,
rm -rf _build depsis the general “turn it off an on again” for Mix projects. The nuclear option isrm -rf _build deps ~/.hexthough in six years of Elixiring that has only been necessary once (and I can’t even remember why).benwilson512
If this is an escript, you need to rebuild the escript after each change you make.
Eiji
It’s as nuclear as
rm -rf ~/.config- I would definitely not recommend that … In this directory there are:docs- cached docs, so (in very short) justHTMLstuffpackages- cached package archives (when fetching dependencies for every project)hex.config- auth file used when for example you publish a package or send it’s new versioncache.ets- I don’t remember now what’s for, so at in best case this should be the only cache file to removeSo removing this directory developer would have to sign in again in CLI and download again all deps and their docs for every project.
When compiling project in many cases a cache is saved in some directory in
~/.cachefolder (make sure to not remove the entire directory). Also in~/.cache/mixthere isinstallsdirectory and it’s used when callingMix.install/1in scripts andiex. Same deps for differentElixirandErlangversions are fetched and compiled in separate directories likeelixir-1.18.1-erts-15.2. There all “installs” used inMix.install/1are stored separately by generated hash of packages passed to this function. Therefore if you work always on latest versions only you may (but not need to) remove all directories in~/.cache/mix/installs/except the one for your latest version.Other directories that you may be interested is
~/.cache/erlang-historywhich stores not only data forErlang, but alsoElixir.Yeah, that reminds me I had similar fails - they happened way too often …
donnieparka
https://github.com/donnieparka/newP_elixir.git
that’s it anyway there’s nothing more than what i shared