replace marco in template,and generate a new go file
pip3 install -r requirements.txt| Module | IsRequired? |
|---|---|
| wcwidth | ❗ |
| tabulate | ✅ |
although wcwidth is optional, but it's higly recommended to install.
wcwidth help tabulate handle pagecode issue.
we have a template file such as "sample.go.template"
it's contains code like:
const Foo = ${foo} // foo??? no idea @default="simple";
const Bar = ${bar} // some bar...whatever @default=1231;run script:
godefine.py -t sample.go.template -o sample.go sample.go:
const Foo = "simple" // foo??? no idea @default="simple";
const Bar = 1231 // some bar...whatever @default=1231;go define will replace '${something}' with the value user provide.
if var's value not specified, godefine will look for the default value
in the comment after //
default value should apply syntax as follows : '@default=your value;'
pass your custom vars after -v option
godefine.py -v foo=11 bar=222 -t sample.go.template -o sample.go this way is not suggested.
if your value have such special char eg: blank str,",
it's hard to handle with it.
define your vars in config.in
foo="abc 112 333"
bar= bar
web site=https://www.google.com
handsome author=ooopSnake 🎉
template file env.go.template:
package env
const Foo = "abc 112 333" // foo??? @default="中文~";
var Website = "https://www.google.com" // homepage
const Bar = " bar" // barss
var Author = ooopSnake 🎉 // author name @default=snake!;run godefine
godefine.py -i config.in -t env.go.template -o env.go output env.go:
package env
const Foo = "abc 112 333" // foo??? @default="中文~";
var Website = "https://www.google.com" // homepage
const Bar = " bar" // barss
var Author = "ooopSnake 🎉" // author name @default=snake!;as you can see ,foo's value has some space(blank) char.
godefine script will handle them correctly.
if you forgot to assign any one vars ,an error will be raised.
anyway, you still want to generate output, -f will be useful.
if -f applied, any error will be ignored,
the var who not assigned with value,will keep itself original state
.