Gitson.Util

Various functions used inside Gitson.

Documentation

entryPath :: FilePath -> FilePath -> FilePath

Combines two paths and adds the .json extension.

>>> entryPath "things" "entry"
"things/entry.json"

>>> entryPath "things/" "entry"
"things/entry.json"

lockPath :: FilePath

Path to the transaction lock file, relative to the repo root.

filterFilenamesAsKeys :: [String] -> [String]

Turns a list of filenames into a list of keys, ignoring non-JSON files.

>>> filterFilenamesAsKeys [".", "..", "k1.json", "unrelated.file"]
["k1"]

filterDirs :: [FilePath] -> IO [FilePath]

Filters a list of file paths, leaving only paths to existing non-hidden directories.

insideDirectory :: FilePath -> IO a -> IO a

Returns an IO action that switches the current directory to a given path, executes the given IO action and switches the current directory back.

lastCommitText :: IO String

Returns the message of the last git commit in the repo where the current directory is located.

devNull :: IO Handle

A /dev/null handle.

shell :: String -> [String] -> IO ()

Runs a shell command with stdin, stdout and stderr set to devnull.