36 lines
1.0 KiB
Plaintext
36 lines
1.0 KiB
Plaintext
/** Shared helpers for drive-resident /bin scripts (prepended before each command). */
|
|
function bareStdin(ctx) {
|
|
return typeof ctx.shellStdin === 'string' ? ctx.shellStdin : ''
|
|
}
|
|
|
|
async function evalTest(ctx, args) {
|
|
if (!args.length) return false
|
|
if (args[0] === '!') {
|
|
const inner = await evalTest(ctx, args.slice(1))
|
|
return !inner
|
|
}
|
|
if (args.length === 3) {
|
|
const [a, op, b] = args
|
|
if (op === '=') return a === b
|
|
if (op === '!=') return a !== b
|
|
return false
|
|
}
|
|
if (args.length === 2) {
|
|
const op = args[0]
|
|
const p = args[1]
|
|
const st = await ctx.vfs.stat(p)
|
|
if (op === '-e' || op === '-a') return st != null
|
|
if (op === '-f') return st != null && st.type === 'file'
|
|
if (op === '-d') return st != null && st.type === 'directory'
|
|
if (op === '-z') return p.length === 0
|
|
if (op === '-n') return p.length > 0
|
|
return false
|
|
}
|
|
if (args.length === 1) return args[0] !== ''
|
|
return false
|
|
}
|
|
|
|
async function run(ctx, argv) {
|
|
ctx.exitCode = (await evalTest(ctx, argv.slice(1))) ? 0 : 1
|
|
}
|