diff options
| -rw-r--r-- | .lush/scripts/example.lua | 7 | ||||
| -rw-r--r-- | src/lua_api.c | 28 |
2 files changed, 35 insertions, 0 deletions
diff --git a/.lush/scripts/example.lua b/.lush/scripts/example.lua index ffd04c1..53ee6e8 100644 --- a/.lush/scripts/example.lua +++ b/.lush/scripts/example.lua @@ -27,6 +27,7 @@ print("Welcome to Lunar Shell scripting") -- done like so: example.lua arg1 arg2 ... -- args can be read using the global args tables if args ~= nil then + print("Printing args:") for i = 1, #args do print(args[i]) end @@ -75,3 +76,9 @@ end if lush.isWriteable("~/.lush/scripts/example.lua") then print("example.lua is writeable") end + +-- you can fetch the most recently executed command in history +print("Most recent history: " .. lush.lastHistory()) + +-- you can also fetch history at a certain index in the past (1 being most recent) +print("Most recent history indexed: " .. lush.getHistory(1)) diff --git a/src/lua_api.c b/src/lua_api.c index 8314e2a..ac9bf30 100644 --- a/src/lua_api.c +++ b/src/lua_api.c @@ -248,6 +248,30 @@ static int l_is_writeable(lua_State *L) { return 1; } +static int l_last_history(lua_State *L) { + char *history_element = lush_get_past_command(0); + // remove the newline character + history_element[strlen(history_element) - 1] = '\0'; + lua_pushstring(L, history_element); + free(history_element); + return 1; +} + +static int l_get_history(lua_State *L) { + int i = luaL_checkinteger(L, 1); + + // using 1 based indexing to be aligned with Lua + if (i < 1) + return 0; + + char *history_element = lush_get_past_command(i - 1); + // remove the newline character + history_element[strlen(history_element) - 1] = '\0'; + lua_pushstring(L, history_element); + free(history_element); + return 1; +} + // -- register Lua functions -- void lua_register_api(lua_State *L) { @@ -272,6 +296,10 @@ void lua_register_api(lua_State *L) { lua_setfield(L, -2, "isReadable"); lua_pushcfunction(L, l_is_writeable); lua_setfield(L, -2, "isWriteable"); + lua_pushcfunction(L, l_last_history); + lua_setfield(L, -2, "lastHistory"); + lua_pushcfunction(L, l_get_history); + lua_setfield(L, -2, "getHistory"); // set the table as global lua_setglobal(L, "lush"); } |