UTIL: Add temporary file support

1 files changed, 17 insertions, 0 deletions

diff --git a/lib/gitano/util.lua b/lib/gitano/util.lua
index dd40eb3..2e80d68 100644
--- a/lib/gitano/util.lua
+++ b/lib/gitano/util.lua
@@ -517,6 +517,22 @@ local function add_splitable(context, key, value, splitter,
    end
 end
 
+local tempfilecounter = 0
+local function tempfile(repo)
+   local repopath = repo:fs_path()
+   local temppattern = path_join(
+      repopath, ("gitanotmp.%d.%d.XXXXXX"):format(tempfilecounter,
+						  luxio.getpid()))
+   tempfilecounter = tempfilecounter + 1
+   if luxio.mkstemp then
+      return luxio.mkstemp(temppattern)
+   end
+   -- No mkstemp so let's hope that the %d.%d is enough...
+   local fd = luxio.open(temppattern, luxio.O_RDWR + luxio.O_CREAT,
+			 tonumber("700", 8))
+   return fd, temppattern
+end
+
 return {
    parse_cmdline = _parse_cmdline,
 
@@ -526,6 +542,7 @@ return {
    path_join = path_join,
    dirname = dirname,
    basename = basename,
+   tempfile = tempfile,
 
    copy_symlink = copy_symlink,
    hardlink_file = hardlink_file,