Fix up copy command to behave more like regular "cp".

In addition to recording changes, copy now updates the working
directory.

doc/hg.1.txt

@@ -164,11 +164,22 b' commit [options] [files...]::'
 
     aliases: ci
 
-copy <source> <dest>::
-    Mark <dest> file as a copy or rename of a <source> one
+copy <source ...> <dest>::
+    Mark dest as having copies of source files.  If dest is a
+    directory, copies are put in that directory.  If dest is a file,
+    there can only be one source.
+
+    By default, this command copies the contents of files as they
+    stand in the working directory.  If invoked with --after, the
+    operation is recorded, but no copying is performed.
 
     This command takes effect for the next commit.
 
+    Options:
+    -A, --after        record a copy that has already occurred
+    -f, --force        forcibly copy over an existing managed file
+    -p, --parents      append source path to dest
+    
 diff [-a] [-r revision] [-r revision] [files ...]::
     Show differences between revisions for the specified files.
 

mercurial/commands.py

@@ -685,9 +685,84 b' def commit(ui, repo, *pats, **opts):'
     except ValueError, inst:
         raise util.Abort(str(inst))
 
-def copy(ui, repo, source, dest):
-    """mark a file as copied or renamed for the next commit"""
-    return repo.copy(*relpath(repo, (source, dest)))
+def copy(ui, repo, *pats, **opts):
+    """mark files as copied for the next commit"""
+    if not pats:
+        raise util.Abort('no source or destination specified')
+    elif len(pats) == 1:
+        raise util.Abort('no destination specified')
+    pats = list(pats)
+    dest = pats.pop()
+    sources = []
+
+    def okaytocopy(abs, rel, exact):
+        reasons = {'?': 'is not managed',
+                   'a': 'has been marked for add'}
+        reason = reasons.get(repo.dirstate.state(abs))
+        if reason:
+            if exact: ui.warn('%s: not copying - file %s\n' % (rel, reason))
+        else:
+            return True
+
+    for src, abs, rel, exact in walk(repo, pats, opts):
+        if okaytocopy(abs, rel, exact):
+            sources.append((abs, rel, exact))
+    if not sources:
+        raise util.Abort('no files to copy')
+
+    cwd = repo.getcwd()
+    absdest = util.canonpath(repo.root, cwd, dest)
+    reldest = util.pathto(cwd, absdest)
+    if os.path.exists(reldest):
+        destisfile = not os.path.isdir(reldest)
+    else:
+        destisfile = len(sources) == 1 or repo.dirstate.state(absdest) != '?'
+
+    if destisfile:
+        if opts['parents']:
+            raise util.Abort('with --parents, destination must be a directory')
+        elif len(sources) > 1:
+            raise util.Abort('with multiple sources, destination must be a '
+                             'directory')
+    errs = 0
+    for abs, rel, exact in sources:
+        if opts['parents']:
+            mydest = os.path.join(dest, rel)
+        elif destisfile:
+            mydest = reldest
+        else:
+            mydest = os.path.join(dest, os.path.basename(rel))
+        myabsdest = util.canonpath(repo.root, cwd, mydest)
+        myreldest = util.pathto(cwd, myabsdest)
+        if not opts['force'] and repo.dirstate.state(myabsdest) not in 'a?':
+            ui.warn('%s: not overwriting - file already managed\n' % myreldest)
+            continue
+        mydestdir = os.path.dirname(myreldest) or '.'
+        if not opts['after']:
+            try:
+                if opts['parents']: os.makedirs(mydestdir)
+                elif not destisfile: os.mkdir(mydestdir)
+            except OSError, inst:
+                if inst.errno != errno.EEXIST: raise
+        if ui.verbose or not exact:
+            ui.status('copying %s to %s\n' % (rel, myreldest))
+        if not opts['after']:
+            try:
+                shutil.copyfile(rel, myreldest)
+                n = repo.manifest.tip()
+                mf = repo.manifest.readflags(n)
+                util.set_exec(myreldest, util.is_exec(rel, mf[abs]))
+            except IOError, inst:
+                if inst.errno == errno.ENOENT:
+                    ui.warn('%s: deleted in working copy\n' % rel)
+                else:
+                    ui.warn('%s: cannot copy - %s\n' % (rel, inst.strerror))
+                errs += 1
+                continue
+        repo.copy(abs, myabsdest)
+    if errs:
+        ui.warn('(consider using --after to record failed copies)\n')
+    return errs
 
 def debugcheckstate(ui, repo):
     """validate the correctness of the current dirstate"""
@@ -1677,7 +1752,13 b' table = {'
           ('d', 'date', "", 'date code'),
           ('u', 'user', "", 'user')],
          'hg commit [OPTION]... [FILE]...'),
-    "copy": (copy, [], 'hg copy SOURCE DEST'),
+    "copy|cp": (copy,
+             [('I', 'include', [], 'include path in search'),
+              ('X', 'exclude', [], 'exclude path from search'),
+              ('A', 'after', None, 'record a copy after it has happened'),
+              ('f', 'force', None, 'replace destination if it exists'),
+              ('p', 'parents', None, 'append source path to dest')],
+             'hg copy [OPTION]... [SOURCE]... DEST'),
     "debugcheckstate": (debugcheckstate, [], 'debugcheckstate'),
     "debugconfig": (debugconfig, [], 'debugconfig'),
     "debugstate": (debugstate, [], 'debugstate'),

tests/test-copy2

@@ -26,7 +26,7 b' echo "# should not be renamed"'
 hg debugrename bar
 
 cp foo bar
-hg copy foo bar
+hg copy -f foo bar
 echo "# should show copy"
 hg debugstate|grep '^copy'
 hg commit -m3 -d"0 0"

tests/test-help.out

@@ -43,7 +43,7 b' list of commands (use "hg help -v" to sh'
  cat         output the latest or given revision of a file
  clone       make a copy of an existing repository
  commit      commit the specified files or all outstanding changes
- copy        mark a file as copied or renamed for the next commit
+ copy        mark files as copied for the next commit
  diff        diff working directory (or selected files)
  export      dump the header and diffs for one or more changesets
  forget      don't add the specified files on the next commit
@@ -84,7 +84,7 b' list of commands (use "hg help -v" to sh'
  cat         output the latest or given revision of a file
  clone       make a copy of an existing repository
  commit      commit the specified files or all outstanding changes
- copy        mark a file as copied or renamed for the next commit
+ copy        mark files as copied for the next commit
  diff        diff working directory (or selected files)
  export      dump the header and diffs for one or more changesets
  forget      don't add the specified files on the next commit