Add --include, which is the same as --not --exclude.

Git/Index.hs

@@ -9,8 +9,6 @@ module Git.Index where
 
 import System.Posix.Env (setEnv, unsetEnv, getEnv)
 
-import Common
-
 {- Forces git to use the specified index file.
  -
  - Returns an action that will reset back to the default

GitAnnex.hs

@@ -112,6 +112,8 @@ options = commonOptions ++
 		"terminate filename with null"
 	, Option ['x'] ["exclude"] (ReqArg Limit.addExclude paramGlob)
 		"skip files matching the glob pattern"
+	, Option ['I'] ["include"] (ReqArg Limit.addInclude paramGlob)
+		"don't skip files matching the glob pattern"
 	, Option ['i'] ["in"] (ReqArg Limit.addIn paramRemote)
 		"skip files not present in a remote"
 	, Option ['C'] ["copies"] (ReqArg Limit.addCopies paramNumber)

Limit.hs

@@ -55,10 +55,16 @@ addLimit :: (FilePath -> Annex Bool) -> Annex ()
 addLimit = add . Utility.Matcher.Operation
 
 {- Add a limit to skip files that do not match the glob. -}
+addInclude :: String -> Annex ()
+addInclude glob = addLimit $ return . matchglob glob
+
+{- Add a limit to skip files that match the glob. -}
 addExclude :: String -> Annex ()
-addExclude glob = addLimit $ return . notExcluded
+addExclude glob = addLimit $ return . not . matchglob glob
+
+matchglob :: String -> FilePath -> Bool
+matchglob glob f = isJust $ match cregex f []
 	where
-		notExcluded f = isNothing $ match cregex f []
 		cregex = compile regex []
 		regex = '^':wildToRegex glob
 

debian/changelog

@@ -7,6 +7,7 @@ git-annex (3.20111212) UNRELEASED; urgency=low
   * map: --fast disables use of dot to display map
   * Test suite improvements. Current top-level test coverage: 75%
   * Improve deletion of files from rsync special remotes. Closes: #652849
+  * Add --include, which is the same as --not --exclude.
 
  -- Joey Hess <joeyh@debian.org>  Mon, 12 Dec 2011 01:57:49 -0400
 

doc/git-annex.mdwn

@@ -241,12 +241,13 @@ subdirectories).
 
 * find [path ...]
 
-  Outputs a list of annexed files whose content is currently present.
-  Or, if a file matching option is specified, outputs a list of all
-  matching files, whether or not their content is currently present.
+  Outputs a list of annexed files in the specified path. With no path,
+  finds files in the current directory and its subdirectories.
 
-  With no parameters, defaults to finding all files in the current directory
-  and its subdirectories.
+  By default, only lists annexed files whose content is currently present.
+  This can be changed by specifying file matching options. To list all
+  annexed files, present or not, specify --include "*". To list all
+  annexed files whose content is not present, specify --not --in "."
 
   To output filenames terminated with nulls, for use with xargs -0,
   specify --print0.
@@ -447,7 +448,16 @@ file contents are present at either of two repositories.
 * --exclude=glob
 
   Skips files matching the glob pattern. The glob is matched relative to
-  the current directory. For example: --exclude='*.mp3' --exclude='subdir/*'
+  the current directory. For example:
+
+	--exclude='*.mp3' --exclude='subdir/*'
+
+* --include=glob
+
+  Skips files not matching the glob pattern.  (Same as --not --exclude.)
+  For example, to include only mp3 and ogg files:
+
+	--include='*.mp3' --or --include='*.ogg'
 
 * --in=repository
 

test.hs

@@ -524,6 +524,7 @@ test_find = "git-annex find" ~: intmpclonerepo $ do
 	annexed_notpresent sha1annexedfile
 	git_annex_expectoutput "find" [] [annexedfile]
 	git_annex_expectoutput "find" ["--exclude", annexedfile, "--and", "--exclude", sha1annexedfile] []
+	git_annex_expectoutput "find" ["--include", annexedfile] [annexedfile]
 	git_annex_expectoutput "find" ["--not", "--in", "origin"] []
 	git_annex_expectoutput "find" ["--copies", "1", "--and", "--not", "--copies", "2"] [sha1annexedfile]
 	git_annex_expectoutput "find" ["--inbackend", "SHA1"] [sha1annexedfile]