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Fix spacestated script deduplication

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This commit is contained in:
polyfloyd 2016-12-17 16:28:44 +01:00
parent 3db5780651
commit c7065ed27f
1 changed files with 26 additions and 17 deletions
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43
spacestated
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@ -58,6 +58,11 @@ def await_state_change(prev_state):
print(err) print(err)
time.sleep(2) time.sleep(2)
def script_hooks(name, active):
hook_subdir = path.join(HOOK_DIR, '%s_%s.d' % (name, 'open' if active else 'closed'))
return [ path.join(hook_subdir, f) for f in os.listdir(hook_subdir) ]
if __name__ == '__main__': if __name__ == '__main__':
prev_state = get_state() prev_state = get_state()
while True: while True:
@ -66,33 +71,37 @@ if __name__ == '__main__':
print('state: %s' % ', '.join([ '%s=%s' % (name, 'open' if op else 'closed') for name, op in state.items() ])) print('state: %s' % ', '.join([ '%s=%s' % (name, 'open' if op else 'closed') for name, op in state.items() ]))
try: try:
scripts = [] scripts = []
scripts_inverse = []
# Build a list of scripts that should be run.
for name, active in state.items(): for name, active in state.items():
scripts_past = []
scripts_future = []
for scissor_name, scissor_active in state.items():
if scissor_active and name != scissor_name:
scripts_past.extend(script_hooks(scissor_name, True))
scripts_future.extend(script_hooks(scissor_name, False))
hashes_past = { hash_file(f): f for f in scripts_past }
hashes_future = { hash_file(f): f for f in scripts_future }
if active != prev_state[name]: if active != prev_state[name]:
# Add the scripts that should run. hashes = { hash_file(f): f for f in script_hooks(name, active) }
hook_dir = path.join(HOOK_DIR, '%s_%s.d' % (name, 'open' if active else 'closed')) # If the state transitions to open, the scripts that were
scripts.extend([ path.join(hook_dir, f) for f in os.listdir(hook_dir) ]) # ran in the past should not run.
# If the state transitions to closed, the scripts that will
# run in the future should not run.
scissor = hashes_past if active else hashes_future
scripts.append((hashes, scissor))
# Add the scripts that should run if the state is the run = []
# opposite. This will help us to determine whether we will for scriptset in scripts:
# be running scripts in needless succession. (hashes, scissor) = scriptset
inv_dir = path.join(HOOK_DIR, '%s_%s.d' % (name, 'open' if not active else 'closed')) run.extend([ hashes[h] for h in set(hashes.keys()) - set(scissor.keys()) ])
scripts_inverse.extend([ path.join(inv_dir, f) for f in os.listdir(inv_dir) ])
# Alias scripts to their contents though a hash of each of their contents.
hashes = { hash_file(f): f for f in scripts }
hashes_inverse = { hash_file(f): f for f in scripts_inverse }
run = [ hashes[h] for h in set(hashes.keys()) - set(hashes_inverse.keys()) ]
run.sort() run.sort()
for script in run: for script in run:
try: try:
if os.access(script, os.X_OK): if os.access(script, os.X_OK):
out = subprocess.check_output([ script ])[:-1].decode('utf8') out = subprocess.check_output([ script ])[:-1].decode('utf8')
print(out) print('-> %s: %s' % (script, out))
except Exception as err: except Exception as err:
print(err) print(err)