add GitGraph build file

GitGraph/build/debug/api/api.lua

@@ -0,0 +1,86 @@
+-- nothing todo for now
+local args=...
+local vfs = require("vfs")
+
+local result = function(data)
+    return { error = false, result = data }
+end
+
+local error = function(msg)
+    return {error = msg, result = false}
+end
+
+local handle = {}
+
+handle.log = function(data)
+    -- convert VFS to OS path
+    local os_path = vfs.ospath(data.base_dir)
+    if(not os_path) then
+        return error("Base dir "..data.base_dir.." is not found")
+    end
+    local cmd = "cd "..os_path.." && "
+    cmd = cmd.."git --no-pager log -n "..data.n_commits.." --all --format='{ \"hashes\":{ \"commit\":\"%H\", \"tree\":\"%T\", \"parents\":\"%P\" }, \"author\":{ \"date\": \"%ai\", \"name\": \"%an\", \"email\":\"%ae\" }, \"committer\":{ \"date\": \"%ci\", \"name\": \"%cn\", \"email\":\"%ce\" }, \"extra\":\"%D\"} ====:RAW:====%B====:RAW:========:COMMITEND:===='"
+    if(data.before) then
+        cmd = cmd.." --before='"..data.before.."'"
+    end
+    local f = assert(io.popen(cmd, 'r'))
+    local s = assert(f:read('*a'))
+    f:close()
+    local ret = {}
+    for line in s:gmatch("(.-)====:COMMITEND:====\n") do
+        local arr = {}
+        for el in line:gmatch("(.-)====:RAW:====") do
+            table.insert(arr, el)
+        end
+        local commit = JSON.decodeString(arr[1])
+        commit.message = arr[2]
+        table.insert(ret, commit)
+    end
+    return result(ret)
+end
+
+handle.list_file = function(data)
+    local os_path = vfs.ospath(data.base_dir)
+    if(not os_path) then
+        return error("Base dir "..data.base_dir.." is not found")
+    end
+    local cmd = "cd "..os_path..' && git --no-pager log -m -1 --name-status --pretty="format:" '..data.commit
+    local f = assert(io.popen(cmd, 'r'))
+    local s = assert(f:read('*a'))
+    f:close()
+    local ret = {}
+    for line in s:gmatch("(.-)\n") do
+        table.insert(ret, line)
+    end
+    return result(ret)
+end
+
+handle.get_changes = function(data)
+    local os_path = vfs.ospath(data.base_dir)
+    if(not os_path) then
+        return error("Base dir "..data.base_dir.." is not found")
+    end
+    local cmd = "cd "..os_path.." && git --no-pager diff --no-prefix -U1000 "..data.commit.."^:"..data.file.." "..data.commit..":"..data.file
+    local f = assert(io.popen(cmd, 'r'))
+    local s = assert(f:read('*a'))
+    f:close()
+    return result(s)
+end
+
+handle.get_file = function(data)
+    local os_path = vfs.ospath(data.base_dir)
+    if(not os_path) then
+        return error("Base dir "..data.base_dir.." is not found")
+    end
+    local cmd = "cd "..os_path.." && git --no-pager show "..data.commit..":"..data.file
+    local f = assert(io.popen(cmd, 'r'))
+    local s = assert(f:read('*a'))
+    f:close()
+    return result(s)
+end
+
+if args.action and handle[args.action] then
+    return handle[args.action](args.args)
+else
+    return error("Invalid action parameter")
+end