129 lines
3.4 KiB
Nim
129 lines
3.4 KiB
Nim
# Package
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import std/strformat
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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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const examples = to_table({
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"amp": "urn:nymph:examples:amp"
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})
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## Parse task specific command line arguments into option switches and positional arguments
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proc parseArgs(): tuple[options: seq[string], args: seq[string]] =
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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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## Show task environment (for debugging when writing nimble tasks)
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proc showArgs() =
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echo "Command: ", getCommand()
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echo "ProjectName: ", projectName()
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echo "ProjectDir: ", projectDir()
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echo "ProjectPath: ", projectPath()
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echo "Task args: ", commandLineParams
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for i in 0..paramCount():
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echo &"Arg {i}: ", paramStr(i)
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task build_ex, "Build given example plugin":
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#showArgs()
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let (_, args) = parseArgs()
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if args.len == 0:
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echo "Usage: nimble build_ex <example name>"
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return
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let example = args[^1]
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let source = thisDir() & "/examples/" & example & ".nim"
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let bundle = thisDir() & "/examples/" & example & ".lv2"
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let dll = bundle & "/" & toDll(example)
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if fileExists(source):
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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("opt", "speed")
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switch("define", "release")
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switch("out", dll)
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setCommand("compile", source)
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else:
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echo &"Example '{example}' not found."
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task lv2lint, "Run lv2lint check on given example plugin":
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let (_, args) = parseArgs()
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if args.len == 0:
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echo "Usage: nimble lv2lint <example name>"
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return
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let example = args[^1]
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let uri = examples.getOrDefault(example)
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if uri == "":
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echo &"Plugin URI for example '{example}' not set."
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return
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let examplesDir = thisDir() & "/examples"
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let bundle = examplesDir & "/" & example & ".lv2"
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let dll = bundle & "/" & toDll(example)
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if fileExists(dll):
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exec(&"lv2lint -s NimMain -I {bundle} \"{uri}\"")
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else:
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echo &"Example '{example}' 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 (_, args) = parseArgs()
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if args.len == 0:
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echo "Usage: nimble lv2bm <example name>"
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return
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let example = args[^1]
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let uri = examples.getOrDefault(example)
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if uri == "":
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echo &"Plugin URI for example '{example}' not set."
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return
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let examplesDir = thisDir() & "/examples"
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let bundle = examplesDir & "/" & example & ".lv2"
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let dll = bundle & "/" & toDll(example)
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if fileExists(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 & "/" & example & ".lv2"
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mkDir(tempLv2Dir)
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rmFile(bundleLink)
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exec(&"ln -s \"{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 \"{uri}\"")
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else:
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echo &"Example '{example}' shared library not found. Use task 'build_ex' to build it."
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