major change: use luarocks to manage project

1 files changed, 76 insertions, 0 deletions

diff --git a/nerv/nn/param_repo.lua b/nerv/nn/param_repo.lua
new file mode 100644
index 0000000..ab971ba
--- /dev/null
+++ b/nerv/nn/param_repo.lua
@@ -0,0 +1,76 @@
+local ParamRepo = nerv.class("nerv.ParamRepo")
+function ParamRepo:__init(plist)
+    self.params = {}
+    if plist ~= nil then
+        for i, p in ipairs(plist) do
+            self.params[p.id] = p
+        end
+    end
+end
+
+function ParamRepo:add(pid, p)
+    if self.params[pid] ~= nil then
+        nerv.error("duplicate params with the same id: %s", pid)
+    end
+    self.params[pid] = p
+end
+
+function ParamRepo:remove(pid, p)
+    if self.params[pid] == nil then
+        nerv.error("param %s does not exit", pid)
+    end
+    table.remove(self.params, pid)
+end
+
+function ParamRepo.merge(repos)
+    local self = nerv.ParamRepo()
+    for i, repo in ipairs(repos) do
+        if not nerv.is_type(repo, "nerv.ParamRepo") then
+            nerv.error("nerv.ParamRepo objects expected, got %s", repo)
+        end
+        for pid, p in pairs(repo.params) do
+            self:add(pid, p)
+        end
+    end
+    return self
+end
+
+function ParamRepo:import(param_files, pids, gconf)
+    if type(param_files) ~= "table" then
+        nerv.error("param file table is need")
+    end
+    for i = 1, #param_files do
+        local pf = nerv.ChunkFile(param_files[i], "r")
+        for cid, cspec in pairs(pf.metadata) do
+            if pids == nil or pids[cid] ~= nil then
+                local p = pf:read_chunk(cid, gconf)
+                if not nerv.is_type(p, "nerv.Param") then
+                    nerv.error("param chunk is expected")
+                end
+                self:add(cid, p)
+            end
+        end
+    end
+end
+
+function ParamRepo:export(param_file, pids)
+    cf = nerv.ChunkFile(param_file, "w")
+    if pids == nil then
+        for id, p in pairs(self.params) do
+            cf:write_chunk(p)
+        end
+    else
+        for i, pid in ipairs(pids) do
+            cf:write_chunk(self:get_param(pid))
+        end
+    end
+    cf:close()
+end
+
+function ParamRepo:get_param(pid)
+    local p = self.params[pid]
+    if p == nil then
+        nerv.error("param with id %s not found", pid)
+    end
+    return p
+end