% Copyright (C) 2003 David Roundy
%
% This program is free software; you can redistribute it and/or modify
% it under the terms of the GNU General Public License as published by
% the Free Software Foundation; either version 2, or (at your option)
% any later version.
%
% This program is distributed in the hope that it will be useful,
% but WITHOUT ANY WARRANTY; without even the implied warranty of
% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
% GNU General Public License for more details.
%
% You should have received a copy of the GNU General Public License
% along with this program; see the file COPYING. If not, write to
% the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
% Boston, MA 02110-1301, USA.
\darcsCommand{annotate}
\begin{code}
#include "gadts.h"
module Darcs.Commands.Annotate ( annotate, createdAsXml ) where
import Control.Monad ( when )
import Data.List ( sort )
import Darcs.Commands ( DarcsCommand(..), nodefaults )
import Darcs.Arguments ( DarcsFlag(..), workingRepoDir,
summary, unified, humanReadable,
xmloutput, creatorhash,
fixSubPaths,
listRegisteredFiles,
matchOne,
)
import Darcs.Flags ( isUnified )
import Storage.Hashed.Plain( readPlainTree )
import Darcs.Repository ( Repository, amInRepository, withRepository, ($-), readRepo,
getMarkedupFile )
import Darcs.Patch.Set ( PatchSet, newset2RL )
#ifdef GADT_WITNESSES
import Darcs.Patch.Set ( Origin )
#endif
import Darcs.Patch ( RepoPatch, Named, LineMark(..), patch2patchinfo, xmlSummary )
import qualified Darcs.Patch ( summary )
import Darcs.Witnesses.Ordered ( mapRL, concatRL )
import qualified Data.ByteString.Char8 as BC ( unpack, ByteString )
import Darcs.PrintPatch ( printPatch, contextualPrintPatch )
import Darcs.Patch.Info ( PatchInfo, humanFriendly, toXml, makeFilename,
showPatchInfo )
import Darcs.PopulationData ( Population(..), PopTree(..), DirMark(..),
nameI, modifiedByI, modifiedHowI,
createdByI, creationNameI,
)
import Darcs.Population ( getRepoPopVersion, lookupPop, lookupCreationPop,
modifiedToXml,
)
import Darcs.Hopefully ( info )
import Darcs.RepoPath ( SubPath, toFilePath )
import Darcs.Match ( matchPatch, haveNonrangeMatch, getFirstMatch )
import Darcs.Lock ( withTempDir )
import Darcs.Witnesses.Sealed ( Sealed2(..), unseal2 )
import Printer ( putDocLn, text, errorDoc, ($$), prefix, (<+>),
Doc, empty, vcat, (<>), renderString, packedString )
#include "impossible.h"
annotateDescription :: String
annotateDescription = "Display which patch last modified something."
annotateHelp :: String
annotateHelp =
"The `darcs annotate' command provides two unrelated operations. When\n" ++
"called on a file, it will find the patch that last modified each line\n" ++
"in that file. When called on a patch (e.g. using --patch), it will\n" ++
"print the internal representation of that patch.\n" ++
"\n" ++
"The --summary option will result in a summarized patch annotation,\n" ++
"similar to `darcs whatsnew'. It has no effect on file annotations.\n" ++
"\n" ++
"By default, output is in a human-readable format. The --xml-output\n" ++
"option can be used to generate output for machine postprocessing.\n"
annotate :: DarcsCommand
annotate = DarcsCommand {commandName = "annotate",
commandHelp = annotateHelp,
commandDescription = annotateDescription,
commandExtraArgs = 1,
commandExtraArgHelp = ["[FILE or DIRECTORY]..."],
commandCommand = annotateCmd,
commandPrereq = amInRepository,
commandGetArgPossibilities = listRegisteredFiles,
commandArgdefaults = nodefaults,
commandAdvancedOptions = [],
commandBasicOptions = [summary,unified,
humanReadable,
xmloutput,
matchOne, creatorhash,
workingRepoDir]}
\end{code}
%% FIXME: AFAICT -u does nothing. Remove it from anno's options?
%% --twb, 2009-09-20
Giving the \verb!--unified! flag implies \verb!--human-readable!, and causes
the output to remain in a darcs-specific format that is similar to that produced
by \verb!diff --unified!.
\begin{code}
annotateCmd :: [DarcsFlag] -> [String] -> IO ()
annotateCmd opts [] = withRepository opts $- \repository -> do
when (not $ haveNonrangeMatch opts) $
fail $ "Annotate requires either a patch pattern or a " ++
"file or directory argument."
Sealed2 p <- matchPatch opts `fmap` readRepo repository
if Summary `elem` opts
then do putDocLn $ showpi $ patch2patchinfo p
putDocLn $ show_summary p
else if isUnified opts
then withTempDir "context" $ \_ ->
do getFirstMatch repository opts
c <- readPlainTree "."
contextualPrintPatch c p
else printPatch p
where showpi | MachineReadable `elem` opts = showPatchInfo
| XMLOutput `elem` opts = toXml
| otherwise = humanFriendly
show_summary :: RepoPatch p => Named p C(x y) -> Doc
show_summary = if XMLOutput `elem` opts
then xmlSummary
else Darcs.Patch.summary
annotateCmd opts [""] = annotateCmd opts []
\end{code}
If a directory name is given, annotate will output details of the last
modifying patch for each file in the directory and the directory itself. The
details look like this:
\begin{verbatim}
# Created by [bounce handling patch
# mark**20040526202216] as ./test/m7/bounce_handling.pl
bounce_handling.pl
\end{verbatim}
If a patch name and a directory are given, these details are output for the time after
that patch was applied. If a directory and a tag name are given, the
details of the patches involved in the specified tagged version will be output.
\begin{code}
annotateCmd opts [file] = withRepository opts $- \repository -> do
r <- readRepo repository
fixed_args <- fixSubPaths opts [file]
(rel_file_or_directory:_) <- case fixed_args of
[] -> fail ("The supplied path " ++ file ++ " is not usable")
fs -> return fs
let file_or_directory = rel_file_or_directory
pinfo <- if haveNonrangeMatch opts
then return $ patch2patchinfo `unseal2` (matchPatch opts r)
else case mapRL info $ newset2RL r of
[] -> fail "Annotate does not currently work correctly on empty repositories."
(x:_) -> return x
pop <- getRepoPopVersion "." pinfo
let maybe_creation_pi = findCreationPatchinfo opts r
lookup_thing = case maybe_creation_pi of
Nothing -> lookupPop
Just cp -> lookupCreationPop cp
if toFilePath file_or_directory == "." || toFilePath file_or_directory == ""
then case pop of (Pop _ pt) -> annotatePop opts pinfo pt
else case lookup_thing (toFilePath file_or_directory) pop of
Nothing -> fail $ "There is no file or directory named '"++
toFilePath file_or_directory++"'"
Just (Pop _ pt@(PopDir i _))
| modifiedHowI i == RemovedDir && modifiedByI i /= pinfo ->
errorDoc $ text ("The directory '" ++ toFilePath rel_file_or_directory ++
"' was removed by")
$$ humanFriendly (modifiedByI i)
| otherwise -> annotatePop opts pinfo pt
Just (Pop _ pt@(PopFile i))
| modifiedHowI i == RemovedFile && modifiedByI i /= pinfo ->
errorDoc $ text ("The file '" ++ toFilePath rel_file_or_directory ++
"' was removed by")
$$ humanFriendly (modifiedByI i)
| otherwise -> annotateFile repository opts pinfo file_or_directory pt
annotateCmd _ _ = fail "annotate accepts at most one argument"
annotatePop :: [DarcsFlag] -> PatchInfo -> PopTree -> IO ()
annotatePop opts pinfo pt = putDocLn $ p2format pinfo pt
where p2format = if XMLOutput `elem` opts
then p2xml
else p2s
indent :: Doc -> [Doc]
indent = map (text . i) . lines . renderString
where i "" = ""
i ('#':s) = ('#':s)
i s = " "++s
p2s :: PatchInfo -> PopTree -> Doc
p2s pinfo (PopFile inf) =
created_str
$$ f <+> file_change
where f = packedString $ nameI inf
file_created = text "Created by"
<+> showPatchInfo (fromJust $ createdByI inf)
<+> text "as"
<+> packedString (fromJust $ creationNameI inf)
created_str = prefix "# " file_created
file_change = if modifiedByI inf == pinfo
then text $ show (modifiedHowI inf)
else empty
p2s pinfo (PopDir inf pops) =
created_str
$$ dir <+> dir_change
$$ vcat (map (vcat . indent . p2s pinfo) $ sort pops)
where dir = packedString (nameI inf) <> text "/"
dir_created =
if createdByI inf /= Nothing
then text "Created by "
<+> showPatchInfo (fromJust $ createdByI inf)
<+> text "as"
<+> packedString (fromJust $ creationNameI inf) <> text "/"
else text "Root directory"
created_str = prefix "# " dir_created
dir_change = if modifiedByI inf == pinfo
then text $ show (modifiedHowI inf)
else empty
escapeXML :: String -> Doc
escapeXML = text . strReplace '\'' "'" . strReplace '"' """ .
strReplace '>' ">" . strReplace '<' "<" . strReplace '&' "&"
strReplace :: Char -> String -> String -> String
strReplace _ _ [] = []
strReplace x y (z:zs)
| x == z = y ++ (strReplace x y zs)
| otherwise = z : (strReplace x y zs)
createdAsXml :: PatchInfo -> String -> Doc
createdAsXml pinfo as = text "<created_as original_name='"
<> escapeXML as
<> text "'>"
$$ toXml pinfo
$$ text "</created_as>"
p2xmlOpen :: PatchInfo -> PopTree -> Doc
p2xmlOpen _ (PopFile inf) =
text "<file name='" <> escapeXML f <> text "'>"
$$ created
$$ modified
where f = BC.unpack $ nameI inf
created = case createdByI inf of
Nothing -> empty
Just ci -> createdAsXml ci
(BC.unpack $ fromJust $ creationNameI inf)
modified = modifiedToXml inf
p2xmlOpen _ (PopDir inf _) =
text "<directory name='" <> escapeXML f <> text "'>"
$$ created
$$ modified
where f = BC.unpack $ nameI inf
created = case createdByI inf of
Nothing -> empty
Just ci -> createdAsXml ci
(BC.unpack $ fromJust $ creationNameI inf)
modified = modifiedToXml inf
p2xmlClose :: PatchInfo -> PopTree -> Doc
p2xmlClose _(PopFile _) = text "</file>"
p2xmlClose _ (PopDir _ _) = text "</directory>"
p2xml :: PatchInfo -> PopTree -> Doc
p2xml pinf p@(PopFile _) = p2xmlOpen pinf p $$ p2xmlClose pinf p
p2xml pinf p@(PopDir _ pops) = p2xmlOpen pinf p
$$ vcat (map (p2xml pinf) $ sort pops)
$$ p2xmlClose pinf p
\end{code}
If a file name is given, the last modifying patch details of that file will be output, along
with markup indicating patch details when each line was last (and perhaps next) modified.
If a patch name and a file name are given, these details are output for the time after
that patch was applied.
\begin{code}
annotateFile :: RepoPatch p => Repository p C(r u t) -> [DarcsFlag] -> PatchInfo -> SubPath -> PopTree -> IO ()
annotateFile repository opts pinfo f (PopFile inf) = do
if XMLOutput `elem` opts
then putDocLn $ p2xmlOpen pinfo (PopFile inf)
else if createdByI inf /= Nothing
then putAnn $ text ("File "++toFilePath f++" created by ")
<> showPatchInfo ci <> text (" as " ++ createdname)
else putAnn $ text $ "File "++toFilePath f
mk <- getMarkedupFile repository ci createdname
old_pis <- (dropWhile (/= pinfo).mapRL info.newset2RL) `fmap` readRepo repository
mapM_ (annotateMarkedup opts pinfo old_pis) mk
when (XMLOutput `elem` opts) $ putDocLn $ p2xmlClose pinfo (PopFile inf)
where ci = fromJust $ createdByI inf
createdname = BC.unpack $ fromJust $ creationNameI inf
annotateFile _ _ _ _ _ = impossible
annotateMarkedup :: [DarcsFlag] -> PatchInfo -> [PatchInfo]
-> (BC.ByteString, LineMark) -> IO ()
annotateMarkedup opts | XMLOutput `elem` opts = xmlMarkedup
| otherwise = textMarkedup
textMarkedup :: PatchInfo -> [PatchInfo] -> (BC.ByteString, LineMark) -> IO ()
textMarkedup _ _ (l,None) = putLine ' ' l
textMarkedup pinfo old_pis (l,RemovedLine wheni)
| wheni == pinfo = putLine '-' l
| wheni `elem` old_pis = return ()
| otherwise = putLine ' ' l
textMarkedup pinfo old_pis (l,AddedLine wheni)
| wheni == pinfo = putLine '+' l
| wheni `elem` old_pis = do putAnn $ text "Following line added by "
<> showPatchInfo wheni
putLine ' ' l
| otherwise = return ()
textMarkedup pinfo old_pis (l,AddedRemovedLine whenadd whenrem)
| whenadd == pinfo = do putAnn $ text "Following line removed by "
<> showPatchInfo whenrem
putLine '+' l
| whenrem == pinfo = do putAnn $ text "Following line added by "
<> showPatchInfo whenadd
putLine '-' l
| whenadd `elem` old_pis && not (whenrem `elem` old_pis) =
do putAnn $ text "Following line removed by " <> showPatchInfo whenrem
putAnn $ text "Following line added by " <> showPatchInfo whenadd
putLine ' ' l
| otherwise = return ()
putLine :: Char -> BC.ByteString -> IO ()
putLine c s = putStrLn $ c : BC.unpack s
putAnn :: Doc -> IO ()
putAnn s = putDocLn $ prefix "# " s
xmlMarkedup :: PatchInfo -> [PatchInfo] -> (BC.ByteString, LineMark) -> IO ()
xmlMarkedup _ _ (l,None) = putLine ' ' l
xmlMarkedup pinfo old_pis (l,RemovedLine wheni)
| wheni == pinfo = putDocLn $ text "<removed_line>"
$$ escapeXML (BC.unpack l)
$$ text "</removed_line>"
| wheni `elem` old_pis = return ()
| otherwise = putDocLn $ text "<normal_line>"
$$ text "<removed_by>"
$$ toXml wheni
$$ text "</removed_by>"
$$ escapeXML (BC.unpack l)
$$ text "</normal_line>"
xmlMarkedup pinfo old_pis (l,AddedLine wheni)
| wheni == pinfo = putDocLn $ text "<added_line>"
$$ escapeXML (BC.unpack l)
$$ text "</added_line>"
| wheni `elem` old_pis = putDocLn $ text "<normal_line>"
$$ text "<added_by>"
$$ toXml wheni
$$ text "</added_by>"
$$ escapeXML (BC.unpack l)
$$ text "</normal_line>"
| otherwise = return ()
xmlMarkedup pinfo old_pis (l,AddedRemovedLine whenadd whenrem)
| whenadd == pinfo =
putDocLn $ text "<added_line>"
$$ text "<removed_by>"
$$ toXml whenrem
$$ text "</removed_by>"
$$ escapeXML (BC.unpack l)
$$ text "</added_line>"
| whenrem == pinfo =
putDocLn $ text "<removed_line>"
$$ text "<added_by>"
$$ toXml whenadd
$$ text "</added_by>"
$$ escapeXML (BC.unpack l)
$$ text "</removed_line>"
| whenadd `elem` old_pis && not (whenrem `elem` old_pis) =
putDocLn $ text "<normal_line>"
$$ text "<removed_by>"
$$ toXml whenrem
$$ text "</removed_by>"
$$ text "<added_by>"
$$ toXml whenadd
$$ text "</added_by>"
$$ escapeXML (BC.unpack l)
$$ text "</normal_line>"
| otherwise = return ()
\end{code}
\begin{options}
--creator-hash HASH
\end{options}
The \verb!--creator-hash! option should only be used in combination with a
file or directory to be annotated. In this case, the name of that file or
directory is interpreted to be its name \emph{at the time it was created},
and the hash given along with \verb!--creator-hash! indicates the patch
that created the file or directory. This allows you to (relatively) easily
examine a file even if it has been renamed multiple times.
\begin{code}
findCreationPatchinfo :: [DarcsFlag] -> PatchSet p C(Origin x) -> Maybe PatchInfo
findCreationPatchinfo [] _ = Nothing
findCreationPatchinfo (CreatorHash h:_) r = findHash h $ mapRL info $ newset2RL r
findCreationPatchinfo (_:fs) r = findCreationPatchinfo fs r
findHash :: String -> [PatchInfo] -> Maybe PatchInfo
findHash _ [] = Nothing
findHash h (pinf:pinfs)
| take (length h) (makeFilename pinf) == h = Just pinf
| otherwise = findHash h pinfs
\end{code}