util: add path_join function

This is like python's os.path.join. It is shorter to write
`util.path_join("foo", "bar", "baz")` than
`table.concat({"foo", "bar", "baz"}, "/")`, and I think it looks nicer.

If any special path handling is later required, then it can go there.

1 files changed, 5 insertions, 0 deletions

diff --git a/lib/gitano/util.lua b/lib/gitano/util.lua
index c8834d3..c5ff673 100644
--- a/lib/gitano/util.lua
+++ b/lib/gitano/util.lua
@@ -107,6 +107,10 @@ local function path_components(path)
    return ret
 end
 
+local function path_join(...)
+   return tconcat({...}, "/")
+end
+
 local function dirname(path)
    local t = path_components(path)
    t[#t] = nil
@@ -321,6 +325,7 @@ return {
    patesc = patesc,
 
    path_components = path_components,
+   path_join = path_join,
    dirname = dirname,
    basename = basename,