lv2features.py

import sys
from collections import defaultdict

import lilv

# FIXME: not sure if this is correct...
using_old_lilv = "lilv_nodes_begin" in dir(lilv)

show_details = '-d' in sys.argv or '--details' in sys.argv

required_total = defaultdict(set)
optional_total = defaultdict(set)

w = lilv.World()
w.load_all()
plugins = w.get_all_plugins()

for plugin in plugins:
    required = plugin.get_required_features()
    optional = plugin.get_optional_features()

    uri = str(plugin.get_uri())

    if using_old_lilv:
        it = lilv.lilv_nodes_begin(required.me)
        while not lilv.lilv_nodes_is_end(required, it):
            feat = lilv.lilv_node_as_uri(lilv.lilv_nodes_get(required, it))
            it   = lilv.lilv_nodes_next(required, it)
            required_total[feat].add(uri)

        it = lilv.lilv_nodes_begin(optional.me)
        while not lilv.lilv_nodes_is_end(optional, it):
            feat = lilv.lilv_node_as_uri(lilv.lilv_nodes_get(optional, it))
            it   = lilv.lilv_nodes_next(optional, it)
            optional_total[feat].add(uri)

    else:
        for feature in required:
            required_total[str(feature)].add(uri)

        for feature in optional:
            optional_total[str(feature)].add(uri)

def bar(width, total, required, optional):
    r = required / total
    o = optional / total

    r_width = round(r * width)
    o_width = round(o * width)

    r_bar = '\u2588' * r_width
    o_bar = '\u2592' * o_width

    return (r_bar + o_bar).ljust(width)

def fmt(s):
    return s.replace('-', '\u2500').replace('+', '\u253c').replace('|', '\u2502')

if using_old_lilv:
  total = plugins.size()
else:
  total = len(plugins)

print("```")
print(total, "plugins installed on the system.")
print()

if show_details:
    feature_uri_length = max((len(uri) for uri in required_total)) + len("<> ")
    print(fmt("feature".ljust(feature_uri_length) + "| required by"))

    for feature in sorted(required_total):
        print(fmt("-" * feature_uri_length + "+------------"))
        for i, plugin in enumerate(sorted(required_total[feature])):
            if i == 0:
                a = "<{}>".format(feature).ljust(feature_uri_length)
            else:
                a = " " * feature_uri_length
            print(fmt(a + "| <" + plugin + ">"))
    print()

print()

all_features = set()
all_features = all_features.union(set(required_total.keys()))
all_features = all_features.union(set(optional_total.keys()))

features_sorted = [(uri, len(required_total[uri]), len(optional_total[uri])) for uri in all_features]
features_sorted.sort(key=lambda x: x[0])
features_sorted.sort(key=lambda x: x[2])
features_sorted.sort(key=lambda x: x[1])
features_sorted.reverse()

print(fmt("0%    100%| required | optional | feature"))
print(fmt("----------+----------+----------+---------"))
for uri, required, optional in features_sorted:
    print(fmt("{}| {} | {} | <{}>".format(bar(10, total, required, optional), str(required).rjust(8), str(optional).rjust(8), uri)))

print("```")

811 plugins installed on the system.


0%    100%│ required │ optional │ feature
──────────┼──────────┼──────────┼─────────
████      │      319 │       11 │ <http://lv2plug.in/ns/ext/urid#map>
█▒        │       65 │       59 │ <http://lv2plug.in/ns/ext/buf─size#boundedBlockLength>
█         │       56 │        0 │ <http://lv2plug.in/ns/ext/options#options>
          │       39 │       19 │ <http://lv2plug.in/ns/ext/worker#schedule>
          │       16 │        0 │ <http://lv2plug.in/ns/ext/urid#unmap>
          │       12 │       12 │ <http://lv2plug.in/ns/ext/state#loadDefaultState>
          │        3 │        1 │ <http://lv2plug.in/ns/ext/uri─map>
          │        3 │        1 │ <http://lv2plug.in/ns/ext/event>
          │        3 │        0 │ <http://lv2plug.in/ns/ext/buf─size#fixedBlockLength>
          │        1 │       21 │ <http://lv2plug.in/ns/ext/state#threadSafeRestore>
          │        1 │        1 │ <http://lv2plug.in/ns/ext/state#makePath>
▒▒▒▒▒▒▒▒  │        0 │      610 │ <http://lv2plug.in/ns/lv2core#hardRTCapable>
▒         │        0 │      105 │ <http://harrisonconsoles.com/lv2/inlinedisplay#queue_draw>
▒         │        0 │       87 │ <http://lv2plug.in/ns/ext/port─props#supportsStrictBounds>
          │        0 │       38 │ <http://lv2plug.in/ns/lv2core#hardRtCapable>
          │        0 │       28 │ <http://lv2plug.in/ns/lv2core#isLive>
          │        0 │        9 │ <http://open─music─kontrollers.ch/lv2/xpress#voiceMap>
          │        0 │        9 │ <http://open─music─kontrollers.ch/lv2/osc#schedule>
          │        0 │        1 │ <http://lv2plug.in/ns/ext/state#mapPath>
          │        0 │        1 │ <http://lv2plug.in/ns/ext/log#log>
          │        0 │        1 │ <http://lv2plug.in/ns/ext/buf─size#coarseBlockLength>