Mercurial > hg
diff contrib/purge/purge.py @ 4310:c8919eb0f315
purge: abort with missing files avoiding problems with name-mangling fs
In a name mangling filesystem (e.g. a case insensitive one)
dirstate.walk() can yield filenames different from the ones
stored in the dirstate. This already confuses the status and
add commands, but with purge this may cause data loss.
To prevent this purge refuses to work if there are missing
files and has a 'force' option if the user knows it is safe.
Even with the force option purge checks if any of the missing
files is still available in the working dir: if so there
may be some problem with the underlying filesystem, so it
unconditionally aborts.
author | Emanuele Aina <em@nerd.ocracy.org> |
---|---|
date | Wed, 28 Mar 2007 21:34:12 +0200 |
parents | 4c714ed245d6 |
children |
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line diff
--- a/contrib/purge/purge.py Wed Apr 04 04:22:08 2007 -0300 +++ b/contrib/purge/purge.py Wed Mar 28 21:34:12 2007 +0200 @@ -31,7 +31,8 @@ from mercurial.i18n import _ import os -def dopurge(ui, repo, dirs=None, act=True, abort_on_err=False, eol='\n'): +def dopurge(ui, repo, dirs=None, act=True, abort_on_err=False, eol='\n', + force=False): def error(msg): if abort_on_err: raise util.Abort(msg) @@ -49,14 +50,19 @@ directories = [] files = [] + missing = [] roots, match, anypats = util.cmdmatcher(repo.root, repo.getcwd(), dirs) for src, f, st in repo.dirstate.statwalk(files=roots, match=match, ignored=True, directories=True): if src == 'd': directories.append(f) + elif src == 'm': + missing.append(f) elif src == 'f' and f not in repo.dirstate: files.append(f) + _check_missing(ui, repo, missing, force) + directories.sort() for f in files: @@ -69,6 +75,43 @@ ui.note(_('Removing directory %s\n') % f) remove(os.rmdir, f) +def _check_missing(ui, repo, missing, force=False): + """Abort if there is the chance of having problems with name-mangling fs + + In a name mangling filesystem (e.g. a case insensitive one) + dirstate.walk() can yield filenames different from the ones + stored in the dirstate. This already confuses the status and + add commands, but with purge this may cause data loss. + + To prevent this, _check_missing will abort if there are missing + files. The force option will let the user skip the check if he + knows it is safe. + + Even with the force option this function will check if any of the + missing files is still available in the working dir: if so there + may be some problem with the underlying filesystem, so it + aborts unconditionally.""" + + found = [f for f in missing if util.lexists(repo.wjoin(f))] + + if found: + if not ui.quiet: + ui.warn(_("The following tracked files weren't listed by the " + "filesystem, but could still be found:\n")) + for f in found: + ui.warn("%s\n" % f) + if util.checkfolding(repo.path): + ui.warn(_("This is probably due to a case-insensitive " + "filesystem\n")) + raise util.Abort(_("purging on name mangling filesystems is not " + "yet fully supported")) + + if missing and not force: + raise util.Abort(_("there are missing files in the working dir and " + "purge still has problems with them due to name " + "mangling filesystems. " + "Use --force if you know what you are doing")) + def purge(ui, repo, *dirs, **opts): '''removes files not tracked by mercurial @@ -100,13 +143,15 @@ if eol == '\0': # --print0 implies --print act = False - dopurge(ui, repo, dirs, act, abort_on_err, eol) + force = bool(opts['force']) + dopurge(ui, repo, dirs, act, abort_on_err, eol, force) cmdtable = { 'purge': (purge, [('a', 'abort-on-err', None, _('abort if an error occurs')), + ('f', 'force', None, _('purge even when missing files are detected')), ('p', 'print', None, _('print the file names instead of deleting them')), ('0', 'print0', None, _('end filenames with NUL, for use with xargs' ' (implies -p)'))],