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bun i comline
comline makes it easy to turn a typescript function into a command line tool.
let's say we have the following function defined in greet.ts
:
/**
* @param {string} name
* @param {number} age
* @returns {string}
*/
function greet(name: string, age: number): string {
return `Hello, ${name}!`
}
create a greet.x.ts
file with the following contents:
import { greet } from "./greet"
import { cli, parseNumberArg, parseStringArg } from "comline"
import { z } from "zod"
const greetCli = cli({
cliName: "greet",
discoverConfigPath: (positionalArgs) => path.join(process.cwd(), `.greet-config.json`),
optionsSchema: z.object({
name: z.string(),
age: z.number(),
}),
options: {
name: {
description: `name`,
example: `--name=hello`,
flag: `n`,
parse: parseStringArg,
required: true,
},
age: {
description: `age`,
example: `--age=1`,
flag: `a`,
parse: parseNumberArg,
required: true,
},
},
})
const { suppliedOptions: { name, age } } = greetCli(process.argv)
const output = greet(name, age)
process.stdout.write(output)
then, run the file greet.x.ts
with the following command:
bun greet.x.ts --name=jeremybanka --age=1
this will print Hello, jeremybanka!
--age
)
""
will be provided to the parse function for age
in this case--age=1
)
"1"
will be provided to the parse function for age
in this case--age=1 --age=2
)
"1,2"
will be provided to the parse function for age
in this case-a
)
""
will be provided to the parse function for age
in this case-aa
)
","
will be provided to the parse function for age
in this case-a=1
)
"1"
will be provided to the parse function for age
in this case-na
)
""
will be provided to the parse function for name
in this case""
will be provided to the parse function for age
in this casemy-cli -- positional
)
import { Tree, TreePath, OPTIONAL, REQUIRED } from "comline"
const myTree = [
REQUIRED,
{
hello: [
OPTIONAL,
{
world: null,
$name: [
OPTIONAL,
{
good: [
REQUIRED,
{
morning: null
}
],
},
],
},
],
},
] satisfies Tree
const validPaths: TreePath<typeof myTree>[] = [
[`hello`],
[`hello`, `world`],
[`hello`, `jeremybanka`],
[`hello`, `jeremybanka`, `good`, `morning`],
]
--
convention.=
to separate the option name from the value.FAQs
```sh bun i comline ```
The npm package comline receives a total of 16 weekly downloads. As such, comline popularity was classified as not popular.
We found that comline demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
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