changeset 884:087771ebe2e6

Fix walk code for files that do not exist anywhere, and unhandled types.

Prior to this, a file that did not exist was reported as showing up in
the filesystem, as were files of unsupported types (such as fifos).

Now, an error message is printed and nothing is returned in such cases.

This change also moves the commands.pathto function to the util module,
as the walk code needs it to print non-confusing error messages.

--- a/mercurial/commands.py	Fri Aug 12 07:42:32 2005 -0800
+++ b/mercurial/commands.py	Fri Aug 12 11:16:58 2005 -0800
@@ -40,22 +40,12 @@
     return util.matcher(repo, cwd, pats or ['.'], opts.get('include'),
                         opts.get('exclude'), head)
 
-def pathto(n1, n2):
-    '''return the relative path from one place to another'''
-    if not n1: return n2
-    a, b = n1.split(os.sep), n2.split(os.sep)
-    a.reverse(), b.reverse()
-    while a and b and a[-1] == b[-1]:
-        a.pop(), b.pop()
-    b.reverse()
-    return os.sep.join((['..'] * len(a)) + b)
-
 def makewalk(repo, pats, opts, head = ''):
     cwd = repo.getcwd()
     files, matchfn = matchpats(repo, cwd, pats, opts, head)
     def walk():
         for src, fn in repo.walk(files = files, match = matchfn):
-            yield src, fn, pathto(cwd, fn)
+            yield src, fn, util.pathto(cwd, fn)
     return files, matchfn, walk()
 
 def walk(repo, pats, opts, head = ''):
@@ -1078,7 +1068,7 @@
 
     cwd = repo.getcwd()
     files, matchfn = matchpats(repo, cwd, pats, opts)
-    (c, a, d, u) = [[pathto(cwd, x) for x in n]
+    (c, a, d, u) = [[util.pathto(cwd, x) for x in n]
                     for n in repo.changes(files=files, match=matchfn)]
 
     changetypes = [('modified', 'M', c),

--- a/mercurial/hg.py	Fri Aug 12 07:42:32 2005 -0800
+++ b/mercurial/hg.py	Fri Aug 12 11:16:58 2005 -0800
@@ -11,7 +11,7 @@
 from demandload import *
 demandload(globals(), "re lock urllib urllib2 transaction time socket")
 demandload(globals(), "tempfile httprangereader bdiff urlparse")
-demandload(globals(), "bisect select")
+demandload(globals(), "bisect errno select stat")
 
 class filelog(revlog):
     def __init__(self, opener, path):
@@ -489,9 +489,16 @@
             if fn in known: return True
             known[fn] = 1
         def traverse():
-            for f in util.unique(files):
-                f = os.path.join(self.root, f)
-                if os.path.isdir(f):
+            for ff in util.unique(files):
+                f = os.path.join(self.root, ff)
+                try:
+                    st = os.stat(f)
+                except OSError, inst:
+                    if ff not in dc: self.ui.warn('%s: %s\n' % (
+                        util.pathto(self.getcwd(), ff),
+                        inst.strerror))
+                    continue
+                if stat.S_ISDIR(st.st_mode):
                     for dir, subdirs, fl in os.walk(f):
                         d = dir[len(self.root) + 1:]
                         nd = os.path.normpath(d)
@@ -507,8 +514,18 @@
                         for fn in fl:
                             fn = util.pconvert(os.path.join(d, fn))
                             yield 'f', fn
+                elif stat.S_ISREG(st.st_mode):
+                    yield 'f', ff
                 else:
-                    yield 'f', f[len(self.root) + 1:]
+                    kind = 'unknown'
+                    if stat.S_ISCHR(st.st_mode): kind = 'character device'
+                    elif stat.S_ISBLK(st.st_mode): kind = 'block device'
+                    elif stat.S_ISFIFO(st.st_mode): kind = 'fifo'
+                    elif stat.S_ISLNK(st.st_mode): kind = 'symbolic link'
+                    elif stat.S_ISSOCK(st.st_mode): kind = 'socket'
+                    self.ui.warn('%s: unsupported file type (type is %s)\n' % (
+                        util.pathto(self.getcwd(), ff),
+                        kind))
 
             ks = dc.keys()
             ks.sort()

--- a/mercurial/util.py	Fri Aug 12 07:42:32 2005 -0800
+++ b/mercurial/util.py	Fri Aug 12 11:16:58 2005 -0800
@@ -69,6 +69,16 @@
 
 _globchars = {'[': 1, '{': 1, '*': 1, '?': 1}
 
+def pathto(n1, n2):
+    '''return the relative path from one place to another'''
+    if not n1: return n2
+    a, b = n1.split(os.sep), n2.split(os.sep)
+    a.reverse(), b.reverse()
+    while a and b and a[-1] == b[-1]:
+        a.pop(), b.pop()
+    b.reverse()
+    return os.sep.join((['..'] * len(a)) + b)
+
 def canonpath(repo, cwd, myname):
     rootsep = repo.root + os.sep
     name = myname