Error in local generation

[ebonetti]

Hi taylorchu :)
while generating a local code the command gorewrite returns the error:

2018/04/03 19:42:47 GOPACKAGE cannot be empty

You can checkout the test setup in the attachment.

On the other side generating a separate package doesn't give such error.

Keep up the great work,
Enrico Bonetti Vieno

P.S.: I do like a lot the elegance of your program - big fun here 👍 - in my opininion with some minor refinments and integrated in the toolchain could be a real substitute for the generics.

[taylorchu]

This tool is designed to run with go generate which fills the env variable GOPACKAGE.

Go generate sets several variables when it runs the generator:

$GOARCH
	The execution architecture (arm, amd64, etc.)
$GOOS
	The execution operating system (linux, windows, etc.)
$GOFILE
	The base name of the file.
$GOLINE
	The line number of the directive in the source file.
$GOPACKAGE
	The name of the package of the file containing the directive.
$DOLLAR
	A dollar sign.

[ebonetti]

Holy pretzel! Now I have some nice local code, knowing that beforehand I could just have used an environment variable:
GOPACKAGE=main gorewrite

1. About that, if go-generate is a use requisite, why it's not documented in the README? 😏
2. Moreover, this's such a common misuse, why not check it beforehand? So that the user can be warned and guided to the intended one

Keep it up, Enrico

P.S.: I just like a lot your tool and I want it to succeed ;)