Added javascript tail functionality to logfiles.

git-svn-id: svn://svn.alpinelinux.org/acf/alpine-baselayout/trunk@1441 ab2d0c66-481e-0410-8bed-d214d4d58bed

1 files changed, 32 insertions, 0 deletions

diff --git a/logfiles-model.lua b/logfiles-model.lua
index 2ac4f5d..54aceee 100644
--- a/logfiles-model.lua
+++ b/logfiles-model.lua
@@ -76,6 +76,38 @@ get_filedetails = function (path)
 	return filedetails
 end
 
+tail = function(path, offset)
+	local filename = cfe({ value=path, label="File name", errtxt="File not found" })
+	local filesize = cfe({ value="0", label="File size" })
+	local filecontent = cfe({ type="longtext", label="File content" })
+	local fileoffset = cfe({ value="0", label="File offset" })
+
+	local available_files = get()
+	for i,file in ipairs(available_files.value) do
+		if ( file.value.filename.value == path ) then
+			filename.errtxt = nil
+			local f = io.open(path)
+			if tonumber(offset) then
+				fileoffset.value = offset
+				offset = tonumber(offset)
+				if offset < 0 then
+					f:seek("end", offset)
+				else
+					f:seek("set", offset)
+				end
+				filecontent.value = f:read("*all")
+				filesize.value = f:seek()
+			else
+				filesize.value = f:seek("end")
+				fileoffset.value = filesize.value
+			end
+			f:close()
+			break
+		end
+	end
+	
+	return cfe({ type="group", value={filename=filename, filecontent=filecontent, filesize=filesize, fileoffset=fileoffset}, label="Tail Config file details" })
+end
 
 get = function ()
 	-- These folders (and their subfolers) are going to be listed