syndicated-open/src/uri_runner.nim

55 lines
1.8 KiB
Nim

# SPDX-FileCopyrightText: ☭ 2022 Emery Hemingway
# SPDX-License-Identifier: Unlicense
import std/[asyncdispatch, re]
import preserves, syndicate
import ./protocol, ./exec
bootDataspace("main") do (root: Ref; turn: var Turn):
var actions: seq[tuple[regex: Regex; cmd: string; args: seq[Assertion]]]
connectStdio(root, turn)
onPublish(turn, root, ?ActionHandler) do (pat: string; cmd: seq[Assertion]):
if cmd.len < 2:
stderr.writeLine "ignoring ", $cmd, " for ", pat
else:
if cmd[0].isString:
var act = (re(pat, {reIgnoreCase, reStudy}), cmd[0].string, cmd[1..cmd.high],)
actions.add act
else:
stderr.writeLine "not a valid program specification: ", cmd[0]
during(turn, root, ?ListenOn[Ref]) do (a: Assertion):
let ds = unembed a
onMessage(turn, ds, ?XdgOpen) do (uris: seq[string]):
for uri in uris:
var matched: bool
for act in actions:
if match(uri, act.regex):
matched = true
var args = newSeq[string](act.args.len)
for i, arg in act.args:
if arg.isString:
args[i] = replacef(uri, act.regex, arg.string)
elif arg.isInteger:
if arg.int == 0:
args[i] = uri
else:
args[i] = replacef(uri, act.regex, "$" & $arg.int)
message(turn, root, Exec(
argv: CommandLine(
orKind: CommandLineKind.full,
full: FullCommandLine(
program: act.cmd,
args: args)),
restartPolicy: RestartPolicy.never))
if not matched:
stderr.writeLine "no actions matched for ", uri
do:
# The Syndicate server retracts all assertions when
# the config is rewritten.
actions.setLen 0
runForever()