diff options
Diffstat (limited to 'Git/Ref.hs')
| -rw-r--r-- | Git/Ref.hs | 24 |
1 files changed, 16 insertions, 8 deletions
@@ -64,12 +64,17 @@ branchRef = underBase "refs/heads" {- A Ref that can be used to refer to a file in the repository, as staged - in the index. - - - - Prefixing the file with ./ makes this work even if in a subdirectory - - of a repo. -} -fileRef :: RawFilePath -> Ref -fileRef f = Ref $ ":./" <> toInternalGitPath f +fileRef :: RawFilePath -> IO Ref +fileRef f = do + -- The filename could be absolute, or contain eg "../repo/file", + -- neither of which work in a ref, so convert it to a minimal + -- relative path. + f' <- relPathCwdToFile f + -- Prefixing the file with ./ makes this work even when in a + -- subdirectory of a repo. Eg, ./foo in directory bar refers + -- to bar/foo, not to foo in the top of the repository. + return $ Ref $ ":./" <> toInternalGitPath f' {- A Ref that can be used to refer to a file in a particular branch. -} branchFileRef :: Branch -> RawFilePath -> Ref @@ -81,10 +86,13 @@ dateRef r (RefDate d) = Ref $ fromRef' r <> "@" <> encodeBS' d {- A Ref that can be used to refer to a file in the repository as it - appears in a given Ref. -} -fileFromRef :: Ref -> RawFilePath -> Ref -fileFromRef r f = let (Ref fr) = fileRef f in Ref (fromRef' r <> fr) +fileFromRef :: Ref -> RawFilePath -> IO Ref +fileFromRef r f = do + (Ref fr) <- fileRef f + return (Ref (fromRef' r <> fr)) -{- Checks if a ref exists. -} +{- Checks if a ref exists. Note that it must be fully qualified, + - eg refs/heads/master rather than master. -} exists :: Ref -> Repo -> IO Bool exists ref = runBool [ Param "show-ref" |