mirror of https://github.com/octoleo/lsyncd.git
102 lines
2.5 KiB
Lua
102 lines
2.5 KiB
Lua
------------------------------------------------------------------------------
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-- lsyncd library functions implemented in C
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------------------------------------------------------------------------------
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----
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-- real_dir(dir)
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--
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-- Converts a relative directory path to an absolute.
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--
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-- @param dir a relative path to directory
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-- @return absolute path of directory
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--
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----
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--
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-- sub_dirs(dir)
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--
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-- Reads the directories sub directories.
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--
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-- @param dir absolute path to directory.
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-- @return a table of directory names.
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--
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------------------------------------------------------------------------------
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-- lsyncd library functions implemented in LUA
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------------------------------------------------------------------------------
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----
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-- Table of all directories to watch.
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local origin = {}
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----
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-- all targets
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local targets = {}
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-----
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-- all watches
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local watches = {}
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----
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-- Adds watches for a directory including all subdirectories.
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--
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-- @param sdir
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-- @param target
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-- @param ...
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local function attend_dir(origin, path, target)
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print("attending dir", origin, "+", path, "->", target.dirname);
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-- actual dir = origin + path
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local op = origin .. path
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-- register watch and receive watch descriptor
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local wd = lsyncd.add_watch(op);
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if wd < 0 then
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-- failed adding the watch
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-- TODO die?
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return
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end
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if watches[wd] ~= nil then
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-- this directory is already watched, add the target
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local watch = watches[wd]
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table.insert(watch.attends, { origin = origin, path = path, target = target })
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else
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-- new watch
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local watch = {wd = wd, attends = { origin = origin, path = path, target = target } }
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watches[wd] = watch
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end
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-- register all subdirectories
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local subd = lsyncd.sub_dirs(op);
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local i, o
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for i, v in ipairs(subd) do
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attend_dir(origin, path .. v .. "/", target)
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end
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end
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----
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-- Called from core on init or restart after user configuration.
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--
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function lsyncd_initialize()
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print("--- INIT ---")
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local i, o
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for i, o in ipairs(origin) do
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print("Handling ", o.source, "->" , o.target)
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local target = { dirname = o.target }
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table.insert(targets, target)
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attend_dir(lsyncd.real_dir(o.source), "", target)
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end
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end
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------------------------------------------------------------------------------
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-- lsyncd user interface
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------------------------------------------------------------------------------
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----
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-- Add one directory to be watched.
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function add(source, target)
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local o = { source = source, target = target }
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table.insert(origin, o)
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return o
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end
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