116 lines
3.1 KiB
Nim
116 lines
3.1 KiB
Nim
import std/os except commandLineParams
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import std/strformat
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# Package definition
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version = "0.1.0"
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author = "Christopher Arndt"
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description = "A Nim library for writing audio and MIDI plugins conforming to the LV2 standard"
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license = "MIT"
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srcDir = "src"
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# Dependencies
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requires "nim >= 2.0"
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# Custom tasks
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type Example = tuple
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name: string
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uri: string
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source: string
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bundle: string
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dll: string
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const examples = to_table({
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"amp": "urn:nymph:examples:amp",
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"multimode_filter": "urn:nymph:examples:multimode-filter",
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})
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proc parseArgs(): tuple[options: seq[string], args: seq[string]] =
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## Parse task specific command line arguments into option switches and positional arguments
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for arg in commandLineParams:
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if arg[0] == '-': # -d:foo or --define:foo
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result.options.add(arg)
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else:
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result.args.add(arg)
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proc getExample(task_name: string): Example =
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let (_, args) = parseArgs()
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if args.len == 0:
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quit(&"Usage: nimble {task_name} <example name>")
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result.name = changeFileExt(args[^1], "")
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let examplesDir = thisDir() / "examples"
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result.source = examplesDir / changeFileExt(result.name, "nim")
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if not fileExists(result.source):
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quit(&"Example '{result.name}' not found.")
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result.uri = examples.getOrDefault(result.name)
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if result.uri == "":
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quit(&"Plugin URI for example '{result.name}' not set.")
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result.bundle = examplesDir / changeFileExt(result.name, "lv2")
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result.dll = result.bundle / toDll(result.name)
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task build_ex, "Build given example plugin":
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let ex = getExample("build_ex")
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switch("app", "lib")
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switch("noMain", "on")
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switch("mm", "arc")
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switch("out", ex.dll)
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when not defined(release) and not defined(debug):
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echo &"Compiling plugin {ex.name} in release mode."
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switch("define", "release")
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switch("opt", "speed")
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switch("define", "lto")
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switch("define", "strip")
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setCommand("compile", ex.source)
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task lv2lint, "Run lv2lint check on given example plugin":
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let ex = getExample("lv2lint")
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if fileExists(ex.dll):
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exec(&"lv2lint -s NimMain -I \"{ex.bundle}\" \"{ex.uri}\"")
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else:
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echo &"Example '{ex.name}' shared library not found. Use task 'build_ex' to build it."
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task lv2bm, "Run lv2bm benchmark on given example plugin":
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let ex = getExample("lv2bm")
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if ex.uri == "":
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echo &"Plugin URI for example '{ex.name}' not set."
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return
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if fileExists(ex.dll):
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let lv2_path = getEnv("LV2_PATH")
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let tempLv2Dir = thisDir() / ".lv2"
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let bundleLink = tempLv2Dir / changeFileExt(ex.name, "lv2")
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mkDir(tempLv2Dir)
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rmFile(bundleLink)
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exec(&"ln -s \"{ex.bundle}\" \"{bundleLink}\"")
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if lv2_path == "":
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putEnv("LV2_PATH", tempLv2Dir)
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else:
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putEnv("LV2_PATH", tempLv2Dir & ":" & lv2_path)
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exec(&"lv2bm --full-test -i white \"{ex.uri}\"")
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else:
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echo &"Example '{ex.name}' shared library not found. Use task 'build_ex' to build it."
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