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comparison mercurial/debugcommands.py @ 35402:12055fb3ba30

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debuglocks: allow setting a lock
author Paul Morelle <paul.morelle@octobus.net>
date Sun, 12 Nov 2017 15:34:46 +0100
parents a43b2dd95e4f
children dffc35a5be9f
comparison
equal deleted inserted replaced
35401:a43b2dd95e4f 35402:12055fb3ba30
1273 debugnamecomplete(ui, repo, *args) 1273 debugnamecomplete(ui, repo, *args)
1274 1274
1275 @command('debuglocks', 1275 @command('debuglocks',
1276 [('L', 'force-lock', None, _('free the store lock (DANGEROUS)')), 1276 [('L', 'force-lock', None, _('free the store lock (DANGEROUS)')),
1277 ('W', 'force-wlock', None, 1277 ('W', 'force-wlock', None,
1278 _('free the working state lock (DANGEROUS)'))], 1278 _('free the working state lock (DANGEROUS)')),
1279 ('s', 'set-lock', None, _('set the store lock until stopped')),
1280 ('S', 'set-wlock', None,
1281 _('set the working state lock until stopped'))],
1279 _('[OPTION]...')) 1282 _('[OPTION]...'))
1280 def debuglocks(ui, repo, **opts): 1283 def debuglocks(ui, repo, **opts):
1281 """show or modify state of locks 1284 """show or modify state of locks
1282 1285
1283 By default, this command will show which locks are held. This 1286 By default, this command will show which locks are held. This
1291 detect and remove such stale locks automatically. 1294 detect and remove such stale locks automatically.
1292 1295
1293 However, detecting stale locks may not always be possible (for 1296 However, detecting stale locks may not always be possible (for
1294 instance, on a shared filesystem). Removing locks may also be 1297 instance, on a shared filesystem). Removing locks may also be
1295 blocked by filesystem permissions. 1298 blocked by filesystem permissions.
1299
1300 Setting a lock will prevent other commands from changing the data.
1301 The command will wait until an interruption (SIGINT, SIGTERM, ...) occurs.
1302 The set locks are removed when the command exits.
1296 1303
1297 Returns 0 if no locks are held. 1304 Returns 0 if no locks are held.
1298 1305
1299 """ 1306 """
1300 1307
1302 repo.svfs.unlink('lock') 1309 repo.svfs.unlink('lock')
1303 if opts.get(r'force_wlock'): 1310 if opts.get(r'force_wlock'):
1304 repo.vfs.unlink('wlock') 1311 repo.vfs.unlink('wlock')
1305 if opts.get(r'force_lock') or opts.get(r'force_wlock'): 1312 if opts.get(r'force_lock') or opts.get(r'force_wlock'):
1306 return 0 1313 return 0
1314
1315 locks = []
1316 try:
1317 if opts.get(r'set_wlock'):
1318 try:
1319 locks.append(repo.wlock(False))
1320 except error.LockHeld:
1321 raise error.Abort(_('wlock is already held'))
1322 if opts.get(r'set_lock'):
1323 try:
1324 locks.append(repo.lock(False))
1325 except error.LockHeld:
1326 raise error.Abort(_('lock is already held'))
1327 if len(locks):
1328 ui.promptchoice(_("ready to release the lock (y)? $$ &Yes"))
1329 return 0
1330 finally:
1331 release(*locks)
1307 1332
1308 now = time.time() 1333 now = time.time()
1309 held = 0 1334 held = 0
1310 1335
1311 def report(vfs, name, method): 1336 def report(vfs, name, method):