Integrate linenoise

We get prompt history etc.

Signed-off-by: Eric Curtin <ecurtin@redhat.com>

.github/workflows/build.yml

@@ -87,6 +87,7 @@ jobs:
         if: ${{ ( github.event_name == 'push' && github.ref == 'refs/heads/master' ) || github.event.inputs.create_release == 'true' }}
         run: |
           cp LICENSE ./build/bin/
+          cp examples/run/linenoise.cpp/LICENSE ./build/bin/LICENSE.linenoise.cpp
           zip -r llama-${{ steps.tag.outputs.name }}-bin-macos-arm64.zip ./build/bin/*
 
       - name: Upload artifacts
@@ -149,6 +150,7 @@ jobs:
         if: ${{ ( github.event_name == 'push' && github.ref == 'refs/heads/master' ) || github.event.inputs.create_release == 'true' }}
         run: |
           cp LICENSE ./build/bin/
+          cp examples/run/linenoise.cpp/LICENSE ./build/bin/LICENSE.linenoise.cpp
           zip -r llama-${{ steps.tag.outputs.name }}-bin-macos-x64.zip ./build/bin/*
 
       - name: Upload artifacts
@@ -217,6 +219,7 @@ jobs:
         if: ${{ ( github.event_name == 'push' && github.ref == 'refs/heads/master' ) || github.event.inputs.create_release == 'true' }}
         run: |
           cp LICENSE ./build/bin/
+          cp examples/run/linenoise.cpp/LICENSE ./build/bin/LICENSE.linenoise.cpp
           zip -r llama-${{ steps.tag.outputs.name }}-bin-ubuntu-x64.zip ./build/bin/*
 
       - name: Upload artifacts
@@ -796,6 +799,7 @@ jobs:
         if: ${{ ( github.event_name == 'push' && github.ref == 'refs/heads/master' ) || github.event.inputs.create_release == 'true' }}
         run: |
           Copy-Item LICENSE .\build\bin\Release\llama.cpp.txt
+          Copy-Item .\examples\run\linenoise.cpp\LICENSE .\build\bin\Release\linenoise.cpp.txt
           7z a llama-${{ steps.tag.outputs.name }}-bin-win-${{ matrix.build }}.zip .\build\bin\Release\*
 
       - name: Upload artifacts

examples/run/CMakeLists.txt

@@ -1,5 +1,5 @@
 set(TARGET llama-run)
-add_executable(${TARGET} run.cpp linenoise.cpp)
+add_executable(${TARGET} run.cpp linenoise.cpp/linenoise.cpp)
 install(TARGETS ${TARGET} RUNTIME)
 target_link_libraries(${TARGET} PRIVATE common llama ${CMAKE_THREAD_LIBS_INIT})
 target_compile_features(${TARGET} PRIVATE cxx_std_17)

examples/run/linenoise.cpp/LICENSE

@@ -0,0 +1,26 @@
+Copyright (c) 2010-2014, Salvatore Sanfilippo <antirez at gmail dot com>
+Copyright (c) 2010-2013, Pieter Noordhuis <pcnoordhuis at gmail dot com>
+Copyright (c) 2025, Eric Curtin <ericcurtin17 at gmail dot com>
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice,
+  this list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

examples/run/linenoise.cpp → examples/run/linenoise.cpp/linenoise.cpp

@@ -11,6 +11,7 @@
  *
  * Copyright (c) 2010-2023, Salvatore Sanfilippo <antirez at gmail dot com>
  * Copyright (c) 2010-2013, Pieter Noordhuis <pcnoordhuis at gmail dot com>
+ * Copyright (c) 2025, Eric Curtin <ericcurtin17 at gmail dot com>
  *
  * All rights reserved.
  *

examples/run/linenoise.h → examples/run/linenoise.cpp/linenoise.h

@@ -1,14 +1,15 @@
 /* linenoise.h -- VERSION 1.0
  *
  * Guerrilla line editing library against the idea that a line editing lib
- * needs to be 20,000 lines of C code.
+ * needs to be 20,000 lines of C++ code.
  *
- * See linenoise.c for more information.
+ * See linenoise.cpp for more information.
  *
  * ------------------------------------------------------------------------
  *
  * Copyright (c) 2010-2023, Salvatore Sanfilippo <antirez at gmail dot com>
  * Copyright (c) 2010-2013, Pieter Noordhuis <pcnoordhuis at gmail dot com>
+ * Copyright (c) 2025, Eric Curtin <ericcurtin17 at gmail dot com>
  *
  * All rights reserved.
  *

examples/run/run.cpp

@@ -25,6 +25,7 @@
 
 #include "common.h"
 #include "json.hpp"
+#include "linenoise.cpp/linenoise.h"
 #include "llama-cpp.h"
 
 #if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__)) || defined(_WIN32)
@@ -807,24 +808,44 @@ static int generate(LlamaData & llama_data, const std::string & prompt, std::str
         batch = llama_batch_get_one(&new_token_id, 1);
     }
 
+    printf("\033[0m");
     return 0;
 }
 
-static int read_user_input(std::string & user) {
-    std::getline(std::cin, user);
+static int read_user_input(std::string & user_input) {
+    static const char * prompt_prefix = "> ";
+#ifdef WIN32
+    printf(
+        "\r%*s"
+        "\r\033[0m%s",
+        get_terminal_width(), " ", prompt_prefix);
+
+    std::getline(std::cin, user_input);
     if (std::cin.eof()) {
         printf("\n");
         return 1;
     }
+#else
+    std::unique_ptr<char, decltype(&std::free)> line(const_cast<char *>(linenoise(prompt_prefix)), free);
+    if (!line) {
+        return 1;
+    }
 
-    if (user == "/bye") {
+    user_input = line.get();
+#endif
+
+    if (user_input == "/bye") {
         return 1;
     }
 
-    if (user.empty()) {
+    if (user_input.empty()) {
         return 2;
     }
 
+#ifndef WIN32
+    linenoiseHistoryAdd(line.get());
+#endif
+
     return 0;  // Should have data in happy path
 }
 
@@ -865,10 +886,6 @@ static int handle_user_input(std::string & user_input, const std::string & user)
         return 0;  // No need for interactive input
     }
 
-    printf(
-        "\r%*s"
-        "\r\033[32m> \033[0m",
-        get_terminal_width(), " ");
     return read_user_input(user_input);  // Returns true if input ends the loop
 }