From e90cd80fbef33e87337c61de8e09ca754bf42b9b Mon Sep 17 00:00:00 2001
From: SirTalksalot75 <132705706+SirTalksalot75@users.noreply.github.com>
Date: Sun, 21 Apr 2024 22:48:29 +0200
Subject: [PATCH 01/29] added prototype for File-reading to main.c

---
 src/main.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/main.c b/src/main.c
index 8bb8127..3c1edd2 100644
--- a/src/main.c
+++ b/src/main.c
@@ -35,6 +35,10 @@ void setup(void)
 
 int main(void) {
     setup();
+    
+    FILE* input = fopen("program.gem", "r");
+
+    yyin = input;
 
     yyparse();
     return 0;

From 1cfe9485e9fb0a65fee9f39f1851ad18b9452094 Mon Sep 17 00:00:00 2001
From: SirTalksalot75 <132705706+SirTalksalot75@users.noreply.github.com>
Date: Mon, 22 Apr 2024 11:51:27 +0200
Subject: [PATCH 02/29] added case for missing input of file to main.c

---
 src/main.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/main.c b/src/main.c
index 3c1edd2..a152df0 100644
--- a/src/main.c
+++ b/src/main.c
@@ -38,8 +38,16 @@ int main(void) {
     
     FILE* input = fopen("program.gem", "r");
 
+    if (input == NULL)
+    {
+        printf("Error opening file!\n");
+        return 1; // Error when opening file
+    }
+    
     yyin = input;
 
+    fclose(input);
+
     yyparse();
     return 0;
 }

From 6fca12df390908837f93b190764ed97be5ed4540 Mon Sep 17 00:00:00 2001
From: SirTalksalot75 <132705706+SirTalksalot75@users.noreply.github.com>
Date: Mon, 22 Apr 2024 12:53:48 +0200
Subject: [PATCH 03/29] modified main.c

-added Error-message from Logging API.
-changed exit and moved after yyparse()
-added extern for file name
todo: make file name user input variable.
---
 src/main.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/main.c b/src/main.c
index a152df0..89c214f 100644
--- a/src/main.c
+++ b/src/main.c
@@ -4,6 +4,8 @@
 
 #define LOG_LEVEL LOG_LEVEL_DEBUG
 
+extern FILE* yyin;
+
 /**
  * @brief Log a debug message to inform about beginning exit procedures
  * 
@@ -38,10 +40,10 @@ int main(void) {
     
     FILE* input = fopen("program.gem", "r");
 
-    if (input == NULL)
+    if (NULL == Input)
     {
-        printf("Error opening file!\n");
-        return 1; // Error when opening file
+        ERROR("File couldn't be opened!");
+        atexit();
     }
     
     yyin = input;
@@ -49,5 +51,7 @@ int main(void) {
     fclose(input);
 
     yyparse();
+
+    atexit();
     return 0;
 }

From 6d249dd9ea1ff742acd2a59153d18854f64eb3c5 Mon Sep 17 00:00:00 2001
From: SirTalksalot75 <132705706+SirTalksalot75@users.noreply.github.com>
Date: Mon, 22 Apr 2024 12:54:20 +0200
Subject: [PATCH 04/29] Update main.c

deleted fclose()
---
 src/main.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/src/main.c b/src/main.c
index 89c214f..a24eb7a 100644
--- a/src/main.c
+++ b/src/main.c
@@ -48,8 +48,6 @@ int main(void) {
     
     yyin = input;
 
-    fclose(input);
-
     yyparse();
 
     atexit();

From 4976aeb22f19ed0effd87bcbe5f34dafe5107c43 Mon Sep 17 00:00:00 2001
From: SirTalksalot75 <132705706+SirTalksalot75@users.noreply.github.com>
Date: Mon, 22 Apr 2024 12:57:49 +0200
Subject: [PATCH 05/29] Update main.c

fixed typo
---
 src/main.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/main.c b/src/main.c
index a24eb7a..f5d242a 100644
--- a/src/main.c
+++ b/src/main.c
@@ -40,16 +40,15 @@ int main(void) {
     
     FILE* input = fopen("program.gem", "r");
 
-    if (NULL == Input)
+    if (NULL == input)
     {
         ERROR("File couldn't be opened!");
-        atexit();
     }
     
     yyin = input;
 
     yyparse();
 
-    atexit();
+    atexit(input);
     return 0;
 }

From aa7c62f0215b51a3c22a66dc59fb60000b86c7b1 Mon Sep 17 00:00:00 2001
From: servostar <sven.vogel123@web.de>
Date: Mon, 22 Apr 2024 13:15:33 +0200
Subject: [PATCH 06/29] Devkit now pulls source from main branch of the
 repository

Added git to SDK
Bumped version from 0.2.0 to 0.2.1
---
 Dockerfile     | 9 ++++-----
 sdk/Dockerfile | 6 +++---
 2 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 1d5ce4b..ce2db20 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,9 @@
-FROM servostar/gemstone:sdk-0.2.0-alpine-3.19.1
+FROM servostar/gemstone:sdk-0.2.1-alpine-3.19.1
 LABEL authors="servostar"
-LABEL version="0.2.0"
+LABEL version="0.2.1"
 LABEL description="docker image for setting up the build pipeline on SDK"
 LABEL website="https://github.com/Servostar/gemstone"
 
-COPY --chown=lorang src /home/lorang/src
-COPY --chown=lorang CMakeLists.txt /home/lorang/
+RUN git clone https://github.com/Servostar/gemstone.git /home/lorang
 
-RUN cmake .
\ No newline at end of file
+RUN cmake .
diff --git a/sdk/Dockerfile b/sdk/Dockerfile
index 098f659..4dbeb1f 100644
--- a/sdk/Dockerfile
+++ b/sdk/Dockerfile
@@ -1,13 +1,13 @@
 FROM alpine:3.19.1
 LABEL authors="servostar"
-LABEL version="0.2.0"
+LABEL version="0.2.1"
 LABEL description="base image for building the gemstone programming language compiler"
 LABEL website="https://github.com/Servostar/gemstone"
 
 # install dependencies
-RUN apk add build-base gcc make cmake bison flex
+RUN apk add build-base gcc make cmake bison flex git
 
 # create user for build
 RUN adduser --disabled-password lorang
 WORKDIR /home/lorang
-USER lorang
\ No newline at end of file
+USER lorang

From ebb29807c85533d73f076a76b00171c289df02c7 Mon Sep 17 00:00:00 2001
From: servostar <sven.vogel123@web.de>
Date: Mon, 22 Apr 2024 13:31:20 +0200
Subject: [PATCH 07/29] bumped SDK version to 0.2.1

---
 .github/workflows/build-check-sdk.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/build-check-sdk.yaml b/.github/workflows/build-check-sdk.yaml
index aed27d4..5b8f2aa 100644
--- a/.github/workflows/build-check-sdk.yaml
+++ b/.github/workflows/build-check-sdk.yaml
@@ -2,7 +2,7 @@ name: "Build check gemstone in SDK"
 run-name: SDK build check to ${{ inputs.deploy_target }} by @${{ github.actor }}
 on: [push, pull_request]
 env:
-  SDK: 0.1.0-alma-9.3
+  SDK: 0.2.1-alpine-3.19.1
 jobs:
   build-check-sdk:
     runs-on: ubuntu-latest

From 05d603f7ac3b48fc267ab8f9d06931750f3be7e2 Mon Sep 17 00:00:00 2001
From: SirTalksalot75 <132705706+SirTalksalot75@users.noreply.github.com>
Date: Mon, 22 Apr 2024 13:41:37 +0200
Subject: [PATCH 08/29] Update main.c

added Function for file closing
---
 src/main.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/main.c b/src/main.c
index f5d242a..6617ed8 100644
--- a/src/main.c
+++ b/src/main.c
@@ -31,12 +31,23 @@ void setup(void)
     #endif
 
     // actual setup
-
+    
     DEBUG("finished starting up gemstone...");
 }
 
+/**
+ * @brief Closes File after compiling.
+ * 
+ */
+
+void close_file(void)
+{
+    fclose(input);
+}
+
 int main(void) {
     setup();
+    atexit(close_file);
     
     FILE* input = fopen("program.gem", "r");
 
@@ -49,6 +60,5 @@ int main(void) {
 
     yyparse();
 
-    atexit(input);
     return 0;
 }

From a85558e118cda0bdec393a16a1898179c443cafe Mon Sep 17 00:00:00 2001
From: SirTalksalot75 <132705706+SirTalksalot75@users.noreply.github.com>
Date: Mon, 22 Apr 2024 14:01:18 +0200
Subject: [PATCH 09/29] Update main.c

changed close_file Function
changed ERROR to PANIC
---
 src/main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/main.c b/src/main.c
index 6617ed8..f96edf3 100644
--- a/src/main.c
+++ b/src/main.c
@@ -42,7 +42,7 @@ void setup(void)
 
 void close_file(void)
 {
-    fclose(input);
+    fclose(yyin);
 }
 
 int main(void) {
@@ -53,7 +53,7 @@ int main(void) {
 
     if (NULL == input)
     {
-        ERROR("File couldn't be opened!");
+        PANIC("File couldn't be opened!");
     }
     
     yyin = input;

From 7797595fef71fa52efbbad7566f9a9666926da4e Mon Sep 17 00:00:00 2001
From: SirTalksalot75 <132705706+SirTalksalot75@users.noreply.github.com>
Date: Tue, 23 Apr 2024 14:25:49 +0200
Subject: [PATCH 10/29] Update main.c

added File Insertion through arguments
---
 src/main.c | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/src/main.c b/src/main.c
index f96edf3..d96e0fd 100644
--- a/src/main.c
+++ b/src/main.c
@@ -4,8 +4,6 @@
 
 #define LOG_LEVEL LOG_LEVEL_DEBUG
 
-extern FILE* yyin;
-
 /**
  * @brief Log a debug message to inform about beginning exit procedures
  * 
@@ -42,16 +40,27 @@ void setup(void)
 
 void close_file(void)
 {
-    fclose(yyin);
+    fclose(argv[1]);
 }
 
-int main(void) {
+int main(int argc, char *argv[]) {
+
     setup();
     atexit(close_file);
-    
-    FILE* input = fopen("program.gem", "r");
 
-    if (NULL == input)
+    // Check for file input as argument
+    if (2 != argc)
+    {
+        printf("Usage: %s <filename>\n", argv[0]);
+        PANIC("No File could be found");
+    }
+    
+    // filename as first argument
+    char *filename = argv[1];
+
+    FILE *file = fopen(filename, "r");
+
+    if (NULL == file)
     {
         PANIC("File couldn't be opened!");
     }

From dad9cbb93a3966d2a91d4d4dae4efb0a81fea435 Mon Sep 17 00:00:00 2001
From: SirTalksalot75 <132705706+SirTalksalot75@users.noreply.github.com>
Date: Tue, 23 Apr 2024 14:32:00 +0200
Subject: [PATCH 11/29] Update main.c

fixed typo
---
 src/main.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/src/main.c b/src/main.c
index d96e0fd..bbcf14b 100644
--- a/src/main.c
+++ b/src/main.c
@@ -64,8 +64,6 @@ int main(int argc, char *argv[]) {
     {
         PANIC("File couldn't be opened!");
     }
-    
-    yyin = input;
 
     yyparse();
 

From fafcb942e02c8967c47cd7f88c9114463701e2d9 Mon Sep 17 00:00:00 2001
From: SirTalksalot75 <132705706+SirTalksalot75@users.noreply.github.com>
Date: Tue, 23 Apr 2024 14:38:30 +0200
Subject: [PATCH 12/29] Update main.c

fixed typo, and changed close_file function
---
 src/main.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/main.c b/src/main.c
index bbcf14b..dd9dde2 100644
--- a/src/main.c
+++ b/src/main.c
@@ -38,15 +38,15 @@ void setup(void)
  * 
  */
 
-void close_file(void)
+void close_file(char file_to_close)
 {
-    fclose(argv[1]);
+    fclose(file_to_close);
 }
 
 int main(int argc, char *argv[]) {
 
     setup();
-    atexit(close_file);
+    atexit(close_file(filename);
 
     // Check for file input as argument
     if (2 != argc)

From 520520e576b052645226c1ed3f5c1ea836c68be5 Mon Sep 17 00:00:00 2001
From: SirTalksalot75 <132705706+SirTalksalot75@users.noreply.github.com>
Date: Tue, 23 Apr 2024 15:27:11 +0200
Subject: [PATCH 13/29] Update main.c

moved atexit() to setup
---
 src/main.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/src/main.c b/src/main.c
index dd9dde2..db22990 100644
--- a/src/main.c
+++ b/src/main.c
@@ -13,6 +13,16 @@ void notify_exit(void)
     DEBUG("Exiting gemstone...");
 }
 
+/**
+ * @brief Closes File after compiling.
+ * 
+ */
+
+void close_file(char file_to_close)
+{
+    fclose(file_to_close);
+}
+
 /**
  * @brief Run compiler setup here
  * 
@@ -31,27 +41,17 @@ void setup(void)
     // actual setup
     
     DEBUG("finished starting up gemstone...");
-}
-
-/**
- * @brief Closes File after compiling.
- * 
- */
-
-void close_file(char file_to_close)
-{
-    fclose(file_to_close);
+    atexit(close_file(filename));
 }
 
 int main(int argc, char *argv[]) {
 
     setup();
-    atexit(close_file(filename);
 
     // Check for file input as argument
     if (2 != argc)
     {
-        printf("Usage: %s <filename>\n", argv[0]);
+        INFO("Usage: %s <filename>\n", argv[0]);
         PANIC("No File could be found");
     }
     

From 501f6f1602f03cc876a2dc95db680ef011c85102 Mon Sep 17 00:00:00 2001
From: servostar <sven.vogel123@web.de>
Date: Wed, 24 Apr 2024 22:31:35 +0200
Subject: [PATCH 14/29] file name macro searches for last char instead of last
 string

---
 src/sys/log.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/sys/log.h b/src/sys/log.h
index 691a38e..aa18c88 100644
--- a/src/sys/log.h
+++ b/src/sys/log.h
@@ -24,7 +24,7 @@
 // generally not defined by GCC < 11.3 and MSVC
 #ifndef __FILE_NAME__
 #if defined(_WIN32) || defined(_WIN64) || defined(_MSC_VER)
-#define __FILE_NAME__ (strrstr(__FILE__, "\\") ? strrstr(__FILE__, "\\") + 1 : __FILE__)
+#define __FILE_NAME__ (strrchr(__FILE__, '\\') ? strrchr(__FILE__, '\\') + 1 : __FILE__)
 #else
 #define __FILE_NAME__ (strrchr(__FILE__, '/') ? strrchr(__FILE__, '/') + 1 : __FILE__)
 #endif

From d673d1de0a6bf53b0b85c45e50a3bf852e574781 Mon Sep 17 00:00:00 2001
From: servostar <sven.vogel123@web.de>
Date: Wed, 24 Apr 2024 22:36:58 +0200
Subject: [PATCH 15/29] removed dependency of unistd.h from lexer

---
 src/lex/lexer.l | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/lex/lexer.l b/src/lex/lexer.l
index 8823195..c1efd4f 100644
--- a/src/lex/lexer.l
+++ b/src/lex/lexer.l
@@ -12,6 +12,9 @@
 %option nounput
 %option noinput
 
+/* prevent depency of unistd.h */
+%option nounistd
+
 %%
 "\n"    yyLineNumber++;
 

From 8cd1f2fb0d5ef0c010f941ec33d082b21d3bf92c Mon Sep 17 00:00:00 2001
From: servostar <sven.vogel123@web.de>
Date: Wed, 24 Apr 2024 22:37:21 +0200
Subject: [PATCH 16/29] added compile flags which differ for MSVC and other
 compiler (GCC/Clang)

---
 CMakeLists.txt | 31 +++++++++++++++++++++++++++----
 1 file changed, 27 insertions(+), 4 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 31b5c87..7f27873 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -56,7 +56,11 @@ add_custom_command(OUTPUT ${YACC_GENERATED_SOURCE_FILE}
 file(GLOB_RECURSE SOURCE_FILES src/*.c)
 
 # define default compile flags
-set(FLAGS -Wall -Wextra -Wconversion -Wpedantic)
+if (MSVC)
+    set(FLAGS /Wall /W3 /permissive)
+else()
+    set(FLAGS -Wall -Wextra -Wconversion -Wpedantic)
+endif()
 
 # ------------------------------------------------ #
 #  Target RELEASE                                  #
@@ -72,13 +76,20 @@ set_target_properties(release
         OUTPUT_NAME "gsc"
         RUNTIME_OUTPUT_DIRECTORY "bin/release")
 
+# FIXME: cannot compile with /O2 because of /RTC1 flag
+if (MSVC)
+    set(RELEASE_FLAGS)
+else()
+    set(RELEASE_FLAGS -m64 -O3 -fprefetch-loop-arrays -mrecip)
+endif()
+
 # compiler flags targeting a 64-bit GCC release environment
 # flags:
 #  - m64: build for 64-bit
 #  - O3: optimization level 3
 #  - fprefetch-loop-arrays: pre load arrays used in loops by using prefetch instruction
 #  - mrecip: make use RCPSS and RSQRTSS instructions
-target_compile_options(release PUBLIC ${FLAGS} -m64 -O3 -fprefetch-loop-arrays -mrecip)
+target_compile_options(release PUBLIC ${FLAGS} ${RELEASE_FLAGS})
 
 # add src directory as include path
 target_include_directories(release PUBLIC src)
@@ -97,8 +108,14 @@ set_target_properties(debug
         OUTPUT_NAME "gsc"
         RUNTIME_OUTPUT_DIRECTORY "bin/debug")
 
+if (MSVC)
+    set(DEBUG_FLAGS /DEBUG)
+else()
+    set(DEBUG_FLAGS -g)
+endif()
+
 # compiler flags targeting a GCC debug environment
-target_compile_options(debug PUBLIC ${FLAGS} -g)
+target_compile_options(debug PUBLIC ${FLAGS} ${DEBUG_FLAGS})
 
 # add src directory as include path
 target_include_directories(debug PUBLIC src)
@@ -120,9 +137,15 @@ set_target_properties(check
         OUTPUT_NAME "gsc"
         RUNTIME_OUTPUT_DIRECTORY "bin/check")
 
+if (MSVC)
+    set(CHECK_FLAGS /DEBUG /WX)
+else()
+    set(DEBUG_FLAGS -g /Werror)
+endif()
+
 # compiler flags targeting a GCC debug environment
 # extra -Werror flag to treat warnings as error to make github action fail on warning
-target_compile_options(check PUBLIC ${FLAGS} -g -Werror)
+target_compile_options(check PUBLIC ${FLAGS} ${DEBUG_FLAGS})
 
 # add src directory as include path
 target_include_directories(check PUBLIC src)

From df927cf7d62fdb6f1ee3ce37575b32044270e4ea Mon Sep 17 00:00:00 2001
From: servostar <sven.vogel123@web.de>
Date: Wed, 24 Apr 2024 22:47:59 +0200
Subject: [PATCH 17/29] fixed flag error and made option nounistd in lexer
 depend on compiler used

---
 CMakeLists.txt  | 7 ++++++-
 src/lex/lexer.l | 3 ---
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7f27873..1cfeefc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -36,6 +36,11 @@ add_custom_command(OUTPUT ${LEX_GENERATED_SOURCE_FILE}
         COMMENT "generate C source file for lexer"
         VERBATIM)
 
+# remove dependency when compiling with MSVC on windows
+if (MSVC)
+    add_compile_definitions(YY_NO_UNISTD_H)
+endif()
+
 # ------------------------------------------------ #
 #  Yacc                                            #
 # ------------------------------------------------ #
@@ -140,7 +145,7 @@ set_target_properties(check
 if (MSVC)
     set(CHECK_FLAGS /DEBUG /WX)
 else()
-    set(DEBUG_FLAGS -g /Werror)
+    set(DEBUG_FLAGS -g -Werror)
 endif()
 
 # compiler flags targeting a GCC debug environment
diff --git a/src/lex/lexer.l b/src/lex/lexer.l
index c1efd4f..8823195 100644
--- a/src/lex/lexer.l
+++ b/src/lex/lexer.l
@@ -12,9 +12,6 @@
 %option nounput
 %option noinput
 
-/* prevent depency of unistd.h */
-%option nounistd
-
 %%
 "\n"    yyLineNumber++;
 

From 6f30be17e9d9f2c94f96ceca5578753a737b81c1 Mon Sep 17 00:00:00 2001
From: servostar <sven.vogel123@web.de>
Date: Wed, 24 Apr 2024 23:58:15 +0200
Subject: [PATCH 18/29] added dependency section in README

---
 README.md | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 854f2f2..a1e442b 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,25 @@
 
 Gemstone is a programming language compiler written in C with lex and yacc.
 
+## Dependencies (build)
+
+### Windows 11
+
+For setup instruction see issue #30
+
+Requires:
+- Microsoft Build Tools 2022 (includes: CMake, MSVC)
+- WinFlexBison [find it here](https://github.com/lexxmark/winflexbison) (needs to be in PATH)
+
+### GNU/Linux
+
+Requires:
+- GCC
+- CMake
+- Make
+- bison
+- flex
+
 ## Development with VSCode/Codium
 
 Recommended extensions for getting a decent experience are the following:
@@ -55,4 +74,4 @@ Currently, the SDK is based on Almalinux 9.3, an open source distro binary compa
 
 The following images can be found in the offical repository at [Docker Hub](https://hub.docker.com/r/servostar/gemstone):
 - SDK
-- Devkit
\ No newline at end of file
+- Devkit

From 5f53d1dce46555d9ffc403078d24a7197735deb9 Mon Sep 17 00:00:00 2001
From: SirTalksalot75 <132705706+SirTalksalot75@users.noreply.github.com>
Date: Thu, 25 Apr 2024 14:02:12 +0200
Subject: [PATCH 19/29] Update main.c

changed indendation and declared and initialized yyin after file opening
---
 src/main.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/main.c b/src/main.c
index db22990..04ab464 100644
--- a/src/main.c
+++ b/src/main.c
@@ -41,13 +41,13 @@ void setup(void)
     // actual setup
     
     DEBUG("finished starting up gemstone...");
-    atexit(close_file(filename));
 }
 
 int main(int argc, char *argv[]) {
 
     setup();
-
+    atexit(close_file(filename));
+    
     // Check for file input as argument
     if (2 != argc)
     {
@@ -58,13 +58,14 @@ int main(int argc, char *argv[]) {
     // filename as first argument
     char *filename = argv[1];
 
-    FILE *file = fopen(filename, "r");
-
     if (NULL == file)
     {
         PANIC("File couldn't be opened!");
     }
 
+    FILE *file = fopen(filename, "r");
+    *file = yyin;
+    
     yyparse();
 
     return 0;

From 72bba3278aaa4860bedc0369afc15182a72eaacd Mon Sep 17 00:00:00 2001
From: Ur Mom <eliasschmidth@gmail.com>
Date: Fri, 26 Apr 2024 16:21:54 +0200
Subject: [PATCH 20/29] updated main.c

---
 src/main.c | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/src/main.c b/src/main.c
index 04ab464..38cf9c9 100644
--- a/src/main.c
+++ b/src/main.c
@@ -4,6 +4,8 @@
 
 #define LOG_LEVEL LOG_LEVEL_DEBUG
 
+extern FILE* yyin;
+
 /**
  * @brief Log a debug message to inform about beginning exit procedures
  * 
@@ -18,9 +20,12 @@ void notify_exit(void)
  * 
  */
 
-void close_file(char file_to_close)
+void close_file(void)
 {
-    fclose(file_to_close);
+    if (NULL != yyin)
+    {
+        fclose(yyin);
+    }
 }
 
 /**
@@ -46,7 +51,7 @@ void setup(void)
 int main(int argc, char *argv[]) {
 
     setup();
-    atexit(close_file(filename));
+    atexit(close_file);
     
     // Check for file input as argument
     if (2 != argc)
@@ -58,13 +63,13 @@ int main(int argc, char *argv[]) {
     // filename as first argument
     char *filename = argv[1];
 
+    FILE *file = fopen(filename, "r");
+
     if (NULL == file)
     {
         PANIC("File couldn't be opened!");
     }
-
-    FILE *file = fopen(filename, "r");
-    *file = yyin;
+    yyin = file;
     
     yyparse();
 

From b386c1104388961fb168a38736a02f66c65adbfb Mon Sep 17 00:00:00 2001
From: servostar <sven.vogel123@web.de>
Date: Thu, 2 May 2024 08:26:18 +0200
Subject: [PATCH 21/29] added first test

---
 .gitignore                    |  3 ++-
 CMakeLists.txt                | 15 ++++++++++++---
 tests/CMakeLists.txt          |  9 +++++++++
 tests/logging/CMakeLists.txt  |  9 +++++++++
 tests/logging/check_output.py | 22 ++++++++++++++++++++++
 tests/logging/main.c          | 16 ++++++++++++++++
 6 files changed, 70 insertions(+), 4 deletions(-)
 create mode 100644 tests/CMakeLists.txt
 create mode 100644 tests/logging/CMakeLists.txt
 create mode 100644 tests/logging/check_output.py
 create mode 100644 tests/logging/main.c

diff --git a/.gitignore b/.gitignore
index eee6202..bb676ce 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,4 +13,5 @@ Makefile
 lexer.ll.c
 parser.tab.c
 parser.tab.h
-build
\ No newline at end of file
+build
+/Testing/
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1cfeefc..079fc47 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -21,6 +21,15 @@ project(gemstone
     DESCRIPTION "programming language compiler"
     LANGUAGES C)
 
+set(GEMSTONE_TEST_DIR ${PROJECT_SOURCE_DIR}/tests)
+set(GEMSTONE_BINARY_DIR ${PROJECT_SOURCE_DIR}/bin)
+
+include(CTest)
+
+if(BUILD_TESTING)
+    add_subdirectory(tests)
+endif()
+
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
 # ------------------------------------------------ #
@@ -79,7 +88,7 @@ add_executable(release
 set_target_properties(release
         PROPERTIES
         OUTPUT_NAME "gsc"
-        RUNTIME_OUTPUT_DIRECTORY "bin/release")
+        RUNTIME_OUTPUT_DIRECTORY ${GEMSTONE_BINARY_DIR}/release)
 
 # FIXME: cannot compile with /O2 because of /RTC1 flag
 if (MSVC)
@@ -111,7 +120,7 @@ add_executable(debug
 set_target_properties(debug
         PROPERTIES
         OUTPUT_NAME "gsc"
-        RUNTIME_OUTPUT_DIRECTORY "bin/debug")
+        RUNTIME_OUTPUT_DIRECTORY ${GEMSTONE_BINARY_DIR}/debug)
 
 if (MSVC)
     set(DEBUG_FLAGS /DEBUG)
@@ -140,7 +149,7 @@ add_executable(check
 set_target_properties(check
         PROPERTIES
         OUTPUT_NAME "gsc"
-        RUNTIME_OUTPUT_DIRECTORY "bin/check")
+        RUNTIME_OUTPUT_DIRECTORY ${GEMSTONE_BINARY_DIR}/check)
 
 if (MSVC)
     set(CHECK_FLAGS /DEBUG /WX)
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
new file mode 100644
index 0000000..2602430
--- /dev/null
+++ b/tests/CMakeLists.txt
@@ -0,0 +1,9 @@
+include(CTest)
+
+set(PROJECT_BINARY_DIR bin)
+set(EXECUTABLE_OUTPUT_PATH ${PROJECT_BINARY_DIR}/tests)
+set(CTEST_BINARY_DIRECTORY ${PROJECT_BINARY_DIR}/tests)
+
+# Provide test to run here or include another CMakeLists.txt
+
+add_subdirectory(logging)
\ No newline at end of file
diff --git a/tests/logging/CMakeLists.txt b/tests/logging/CMakeLists.txt
new file mode 100644
index 0000000..ebc9962
--- /dev/null
+++ b/tests/logging/CMakeLists.txt
@@ -0,0 +1,9 @@
+include(CTest)
+
+add_executable(logging ${PROJECT_SOURCE_DIR}/src/sys/log.c main.c)
+target_include_directories(logging PUBLIC ${PROJECT_SOURCE_DIR}/src)
+set_target_properties(logging
+        PROPERTIES
+        OUTPUT_NAME "output"
+        RUNTIME_OUTPUT_DIRECTORY ${GEMSTONE_BINARY_DIR}/tests/logging)
+add_test(NAME logging WORKING_DIRECTORY ${PROJECT_SOURCE_DIR} COMMAND python ${GEMSTONE_TEST_DIR}/logging/check_output.py)
diff --git a/tests/logging/check_output.py b/tests/logging/check_output.py
new file mode 100644
index 0000000..b908cda
--- /dev/null
+++ b/tests/logging/check_output.py
@@ -0,0 +1,22 @@
+import subprocess
+
+
+def run_logger_test():
+    p = subprocess.run("bin/tests/logging/output", capture_output=True, text=True)
+
+    # check exit code
+    if p.returncode != 0:
+        exit(p.returncode)
+
+    output = p.stderr
+
+    # check if logs appear in default log output (stderr)
+
+    assert "logging some debug..." in output
+    assert "logging some info..." in output
+    assert "logging some warning..." in output
+    assert "logging some error..." in output
+
+
+if __name__ == "__main__":
+    run_logger_test()
diff --git a/tests/logging/main.c b/tests/logging/main.c
new file mode 100644
index 0000000..7accfc5
--- /dev/null
+++ b/tests/logging/main.c
@@ -0,0 +1,16 @@
+//
+// Created by servostar on 5/1/24.
+//
+
+#include "sys/log.h"
+
+int main(void) {
+    log_init();
+
+    DEBUG("logging some debug...");
+    INFO("logging some info...");
+    WARN("logging some warning...");
+    ERROR("logging some error...");
+
+    return 0;
+}

From 4b24e0645cd9da75c3e42b2b6d5a167fba1cbb84 Mon Sep 17 00:00:00 2001
From: servostar <sven.vogel123@web.de>
Date: Thu, 2 May 2024 09:49:14 +0200
Subject: [PATCH 22/29] added test for logger panic

---
 tests/logging/CMakeLists.txt       | 24 +++++++++--
 tests/logging/check_output.py      | 22 ----------
 tests/logging/{main.c => output.c} |  0
 tests/logging/panic.c              | 20 ++++++++++
 tests/logging/test_logging.py      | 64 ++++++++++++++++++++++++++++++
 5 files changed, 104 insertions(+), 26 deletions(-)
 delete mode 100644 tests/logging/check_output.py
 rename tests/logging/{main.c => output.c} (100%)
 create mode 100644 tests/logging/panic.c
 create mode 100644 tests/logging/test_logging.py

diff --git a/tests/logging/CMakeLists.txt b/tests/logging/CMakeLists.txt
index ebc9962..9c90431 100644
--- a/tests/logging/CMakeLists.txt
+++ b/tests/logging/CMakeLists.txt
@@ -1,9 +1,25 @@
 include(CTest)
 
-add_executable(logging ${PROJECT_SOURCE_DIR}/src/sys/log.c main.c)
-target_include_directories(logging PUBLIC ${PROJECT_SOURCE_DIR}/src)
-set_target_properties(logging
+# ------------------------------------------------------- #
+# CTEST 1
+# test the default output of the logger
+
+add_executable(logging_output ${PROJECT_SOURCE_DIR}/src/sys/log.c output.c)
+target_include_directories(logging_output PUBLIC ${PROJECT_SOURCE_DIR}/src)
+set_target_properties(logging_output
         PROPERTIES
         OUTPUT_NAME "output"
         RUNTIME_OUTPUT_DIRECTORY ${GEMSTONE_BINARY_DIR}/tests/logging)
-add_test(NAME logging WORKING_DIRECTORY ${PROJECT_SOURCE_DIR} COMMAND python ${GEMSTONE_TEST_DIR}/logging/check_output.py)
+add_test(NAME logging_output WORKING_DIRECTORY ${PROJECT_SOURCE_DIR} COMMAND python ${GEMSTONE_TEST_DIR}/logging/test_logging.py check_output)
+
+# ------------------------------------------------------- #
+# CTEST 1
+# test the panic functionality of the logger
+
+add_executable(logging_panic ${PROJECT_SOURCE_DIR}/src/sys/log.c panic.c)
+target_include_directories(logging_panic PUBLIC ${PROJECT_SOURCE_DIR}/src)
+set_target_properties(logging_panic
+        PROPERTIES
+        OUTPUT_NAME "panic"
+        RUNTIME_OUTPUT_DIRECTORY ${GEMSTONE_BINARY_DIR}/tests/logging)
+add_test(NAME logging_panic WORKING_DIRECTORY ${PROJECT_SOURCE_DIR} COMMAND python ${GEMSTONE_TEST_DIR}/logging/test_logging.py check_panic)
diff --git a/tests/logging/check_output.py b/tests/logging/check_output.py
deleted file mode 100644
index b908cda..0000000
--- a/tests/logging/check_output.py
+++ /dev/null
@@ -1,22 +0,0 @@
-import subprocess
-
-
-def run_logger_test():
-    p = subprocess.run("bin/tests/logging/output", capture_output=True, text=True)
-
-    # check exit code
-    if p.returncode != 0:
-        exit(p.returncode)
-
-    output = p.stderr
-
-    # check if logs appear in default log output (stderr)
-
-    assert "logging some debug..." in output
-    assert "logging some info..." in output
-    assert "logging some warning..." in output
-    assert "logging some error..." in output
-
-
-if __name__ == "__main__":
-    run_logger_test()
diff --git a/tests/logging/main.c b/tests/logging/output.c
similarity index 100%
rename from tests/logging/main.c
rename to tests/logging/output.c
diff --git a/tests/logging/panic.c b/tests/logging/panic.c
new file mode 100644
index 0000000..ecd8815
--- /dev/null
+++ b/tests/logging/panic.c
@@ -0,0 +1,20 @@
+//
+// Created by servostar on 5/2/24.
+//
+
+#include "sys/log.h"
+
+int main(void) {
+    log_init();
+
+    // this should appear in stderr
+    INFO("before exit");
+
+    PANIC("oooops something happened");
+
+    // this should NOT appear in stderr
+    //             ^^^
+    ERROR("after exit");
+
+    return 0;
+}
diff --git a/tests/logging/test_logging.py b/tests/logging/test_logging.py
new file mode 100644
index 0000000..da88b19
--- /dev/null
+++ b/tests/logging/test_logging.py
@@ -0,0 +1,64 @@
+import subprocess
+import sys
+import logging
+from logging import info, error
+
+BIN_DIR = "bin/tests/logging/"
+
+
+def run_logger_test():
+    info("started check output...")
+
+    p = subprocess.run(BIN_DIR + "output", capture_output=True, text=True)
+
+    info("checking exit code...")
+
+    # check exit code
+    assert p.returncode == 0
+
+    output = p.stderr
+
+    # check if logs appear in default log output (stderr)
+    info("checking stderr...")
+
+    assert "logging some debug..." in output
+    assert "logging some info..." in output
+    assert "logging some warning..." in output
+    assert "logging some error..." in output
+
+
+def run_check_panic():
+    info("started check panic...")
+
+    p = subprocess.run(BIN_DIR + "panic", capture_output=True, text=True)
+
+    info("checking exit code...")
+
+    # check exit code
+    assert p.returncode == 1
+
+    output = p.stderr
+
+    # check if logs appear (not) in default log output (stderr)
+    info("checking stderr...")
+
+    assert "before exit" in output
+    assert "oooops something happened" in output
+    assert "after exit" not in output
+
+
+if __name__ == "__main__":
+    logging.basicConfig(level=logging.INFO)
+
+    target = sys.argv[1]
+
+    info(f"starting logging test suite with target: {target}")
+
+    match target:
+        case "check_output":
+            run_logger_test()
+        case "check_panic":
+            run_check_panic()
+        case _:
+            error(f"unknown target: {target}")
+            exit(1)

From 7bfe49c8eda7c12b49a63132f77748bbc3651536 Mon Sep 17 00:00:00 2001
From: servostar <sven.vogel123@web.de>
Date: Thu, 2 May 2024 09:49:50 +0200
Subject: [PATCH 23/29] renamed python test function for logger output

---
 tests/logging/test_logging.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/logging/test_logging.py b/tests/logging/test_logging.py
index da88b19..54f5d75 100644
--- a/tests/logging/test_logging.py
+++ b/tests/logging/test_logging.py
@@ -6,7 +6,7 @@ from logging import info, error
 BIN_DIR = "bin/tests/logging/"
 
 
-def run_logger_test():
+def run_check_output():
     info("started check output...")
 
     p = subprocess.run(BIN_DIR + "output", capture_output=True, text=True)

From dc240acb9dc84cee1f290ae3af3597f2c6c5c919 Mon Sep 17 00:00:00 2001
From: servostar <sven.vogel123@web.de>
Date: Thu, 2 May 2024 09:59:42 +0200
Subject: [PATCH 24/29] added section about writing tests to README

---
 README.md | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/README.md b/README.md
index a1e442b..faca249 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,28 @@ Requires:
 - bison
 - flex
 
+## Writing Tests
+
+Since the project is build and configured through CMake it makes sense to rely for tests
+on CTest. All tests are located in the subfolder `tests`. In this directory is a CMakeLists.txt which specifies which tests
+are to be run. Actual tests are located in folders within tests and contain a final CMakeLists.txt which specifies what to run 
+for a single test.
+
+```
+tests
+  └─ test_group1
+      └─ CMakeLists.txt  # specify tests in this group
+      └─ ...             # test files of group 1
+      
+  └─ test_group2
+      └─ CMakeLists.txt  # specify tests in this group
+      └─ ...             # test files of group 2
+      
+  └─ CMakeLists.txt      # specify test groups to run
+  
+CMakeLists.txt           # build configuration
+```
+
 ## Development with VSCode/Codium
 
 Recommended extensions for getting a decent experience are the following:

From 138937af57af8ca4d26e002d2881ed29e73e3e96 Mon Sep 17 00:00:00 2001
From: servostar <sven.vogel123@web.de>
Date: Thu, 2 May 2024 10:04:00 +0200
Subject: [PATCH 25/29] fixed output test and reformatted CMake

---
 tests/logging/CMakeLists.txt  | 20 ++++++++++++++------
 tests/logging/test_logging.py |  2 +-
 2 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/tests/logging/CMakeLists.txt b/tests/logging/CMakeLists.txt
index 9c90431..0db2412 100644
--- a/tests/logging/CMakeLists.txt
+++ b/tests/logging/CMakeLists.txt
@@ -1,25 +1,33 @@
 include(CTest)
 
+include_directories(${PROJECT_SOURCE_DIR}/src)
+
 # ------------------------------------------------------- #
 # CTEST 1
 # test the default output of the logger
 
-add_executable(logging_output ${PROJECT_SOURCE_DIR}/src/sys/log.c output.c)
-target_include_directories(logging_output PUBLIC ${PROJECT_SOURCE_DIR}/src)
+add_executable(logging_output
+        ${PROJECT_SOURCE_DIR}/src/sys/log.c
+        output.c)
 set_target_properties(logging_output
         PROPERTIES
         OUTPUT_NAME "output"
         RUNTIME_OUTPUT_DIRECTORY ${GEMSTONE_BINARY_DIR}/tests/logging)
-add_test(NAME logging_output WORKING_DIRECTORY ${PROJECT_SOURCE_DIR} COMMAND python ${GEMSTONE_TEST_DIR}/logging/test_logging.py check_output)
+add_test(NAME logging_output
+        WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
+        COMMAND python ${GEMSTONE_TEST_DIR}/logging/test_logging.py check_output)
 
 # ------------------------------------------------------- #
 # CTEST 1
 # test the panic functionality of the logger
 
-add_executable(logging_panic ${PROJECT_SOURCE_DIR}/src/sys/log.c panic.c)
-target_include_directories(logging_panic PUBLIC ${PROJECT_SOURCE_DIR}/src)
+add_executable(logging_panic
+        ${PROJECT_SOURCE_DIR}/src/sys/log.c
+        panic.c)
 set_target_properties(logging_panic
         PROPERTIES
         OUTPUT_NAME "panic"
         RUNTIME_OUTPUT_DIRECTORY ${GEMSTONE_BINARY_DIR}/tests/logging)
-add_test(NAME logging_panic WORKING_DIRECTORY ${PROJECT_SOURCE_DIR} COMMAND python ${GEMSTONE_TEST_DIR}/logging/test_logging.py check_panic)
+add_test(NAME logging_panic
+        WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
+        COMMAND python ${GEMSTONE_TEST_DIR}/logging/test_logging.py check_panic)
diff --git a/tests/logging/test_logging.py b/tests/logging/test_logging.py
index 54f5d75..86816fd 100644
--- a/tests/logging/test_logging.py
+++ b/tests/logging/test_logging.py
@@ -56,7 +56,7 @@ if __name__ == "__main__":
 
     match target:
         case "check_output":
-            run_logger_test()
+            run_check_output()
         case "check_panic":
             run_check_panic()
         case _:

From ebf526d6dac1b37171cda151cd2d8ac7e75d2dba Mon Sep 17 00:00:00 2001
From: servostar <sven.vogel123@web.de>
Date: Thu, 2 May 2024 10:32:27 +0200
Subject: [PATCH 26/29] added test for multiple output logger streams

---
 tests/logging/CMakeLists.txt  | 17 +++++++++++++++-
 tests/logging/streams.c       | 33 +++++++++++++++++++++++++++++++
 tests/logging/test_logging.py | 37 +++++++++++++++++++++++++++++++++++
 3 files changed, 86 insertions(+), 1 deletion(-)
 create mode 100644 tests/logging/streams.c

diff --git a/tests/logging/CMakeLists.txt b/tests/logging/CMakeLists.txt
index 0db2412..dee6ddf 100644
--- a/tests/logging/CMakeLists.txt
+++ b/tests/logging/CMakeLists.txt
@@ -18,7 +18,7 @@ add_test(NAME logging_output
         COMMAND python ${GEMSTONE_TEST_DIR}/logging/test_logging.py check_output)
 
 # ------------------------------------------------------- #
-# CTEST 1
+# CTEST 2
 # test the panic functionality of the logger
 
 add_executable(logging_panic
@@ -31,3 +31,18 @@ set_target_properties(logging_panic
 add_test(NAME logging_panic
         WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
         COMMAND python ${GEMSTONE_TEST_DIR}/logging/test_logging.py check_panic)
+
+# ------------------------------------------------------- #
+# CTEST 3
+# test the ability to write to multiple output streams
+
+add_executable(logging_streams
+        ${PROJECT_SOURCE_DIR}/src/sys/log.c
+        streams.c)
+set_target_properties(logging_streams
+        PROPERTIES
+        OUTPUT_NAME "stream"
+        RUNTIME_OUTPUT_DIRECTORY ${GEMSTONE_BINARY_DIR}/tests/logging)
+add_test(NAME logging_streams
+        WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
+        COMMAND python ${GEMSTONE_TEST_DIR}/logging/test_logging.py check_stream)
diff --git a/tests/logging/streams.c b/tests/logging/streams.c
new file mode 100644
index 0000000..97599da
--- /dev/null
+++ b/tests/logging/streams.c
@@ -0,0 +1,33 @@
+//
+// Created by servostar on 5/2/24.
+//
+
+#include "sys/log.h"
+#include <stdlib.h>
+
+static FILE* file;
+
+void close_file(void) {
+    if (file != NULL) {
+        fclose(file);
+    }
+}
+
+int main(void) {
+    log_init();
+
+    // this should appear in stderr
+    INFO("should only be in stderr");
+
+    file = fopen("tmp/test.log", "w");
+    if (file == NULL) {
+        PANIC("could not open file");
+    }
+    atexit(close_file);
+
+    log_register_stream(file);
+
+    INFO("should be in both");
+
+    return 0;
+}
diff --git a/tests/logging/test_logging.py b/tests/logging/test_logging.py
index 86816fd..0d32d48 100644
--- a/tests/logging/test_logging.py
+++ b/tests/logging/test_logging.py
@@ -2,6 +2,7 @@ import subprocess
 import sys
 import logging
 from logging import info, error
+import os
 
 BIN_DIR = "bin/tests/logging/"
 
@@ -47,6 +48,40 @@ def run_check_panic():
     assert "after exit" not in output
 
 
+def run_check_stream():
+    info("started check panic...")
+
+    info("creating temporary folder...")
+
+    if not os.path.exists("tmp"):
+        os.mkdir("tmp")
+
+    info("cleaning temporary folder...")
+
+    if os.path.exists("tmp/test.log"):
+        os.remove("tmp/test.log")
+
+    info("launching test binary...")
+
+    p = subprocess.run(BIN_DIR + "stream", capture_output=True, text=True)
+
+    info("checking exit code...")
+
+    # check exit code
+    assert p.returncode == 0
+
+    with open("tmp/test.log", "r") as file:
+        assert "should be in both" in "".join(file.readlines())
+
+    output = p.stderr
+
+    # check if logs appear (not) in default log output (stderr)
+    info("checking stderr...")
+
+    assert "should only be in stderr" in output
+    assert "should be in both" in output
+
+
 if __name__ == "__main__":
     logging.basicConfig(level=logging.INFO)
 
@@ -59,6 +94,8 @@ if __name__ == "__main__":
             run_check_output()
         case "check_panic":
             run_check_panic()
+        case "check_stream":
+            run_check_stream()
         case _:
             error(f"unknown target: {target}")
             exit(1)

From c099a60ecf649cd76da74a50b5d83297f9918fde Mon Sep 17 00:00:00 2001
From: servostar <sven.vogel123@web.de>
Date: Thu, 2 May 2024 10:50:24 +0200
Subject: [PATCH 27/29] added test for compile time log level filter

---
 tests/logging/CMakeLists.txt  | 15 +++++++++++++++
 tests/logging/level.c         | 18 ++++++++++++++++++
 tests/logging/test_logging.py | 23 +++++++++++++++++++++++
 3 files changed, 56 insertions(+)
 create mode 100644 tests/logging/level.c

diff --git a/tests/logging/CMakeLists.txt b/tests/logging/CMakeLists.txt
index dee6ddf..0f14079 100644
--- a/tests/logging/CMakeLists.txt
+++ b/tests/logging/CMakeLists.txt
@@ -46,3 +46,18 @@ set_target_properties(logging_streams
 add_test(NAME logging_streams
         WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
         COMMAND python ${GEMSTONE_TEST_DIR}/logging/test_logging.py check_stream)
+
+# ------------------------------------------------------- #
+# CTEST 4
+# test compile time log level switch
+
+add_executable(logging_level
+        ${PROJECT_SOURCE_DIR}/src/sys/log.c
+        level.c)
+set_target_properties(logging_level
+        PROPERTIES
+        OUTPUT_NAME "level"
+        RUNTIME_OUTPUT_DIRECTORY ${GEMSTONE_BINARY_DIR}/tests/logging)
+add_test(NAME logging_level
+        WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
+        COMMAND python ${GEMSTONE_TEST_DIR}/logging/test_logging.py check_level)
diff --git a/tests/logging/level.c b/tests/logging/level.c
new file mode 100644
index 0000000..6a4f055
--- /dev/null
+++ b/tests/logging/level.c
@@ -0,0 +1,18 @@
+//
+// Created by servostar on 5/2/24.
+//
+
+#include "sys/log.h"
+
+#define LOG_LEVEL LOG_LEVEL_WARNING
+
+int main(void) {
+    log_init();
+
+    DEBUG("logging some debug...");
+    INFO("logging some info...");
+    WARN("logging some warning...");
+    ERROR("logging some error...");
+
+    return 0;
+}
diff --git a/tests/logging/test_logging.py b/tests/logging/test_logging.py
index 0d32d48..246a9d5 100644
--- a/tests/logging/test_logging.py
+++ b/tests/logging/test_logging.py
@@ -28,6 +28,27 @@ def run_check_output():
     assert "logging some error..." in output
 
 
+def run_check_level():
+    info("started check level...")
+
+    p = subprocess.run(BIN_DIR + "level", capture_output=True, text=True)
+
+    info("checking exit code...")
+
+    # check exit code
+    assert p.returncode == 0
+
+    output = p.stderr
+
+    # check if logs appear in default log output (stderr)
+    info("checking stderr...")
+
+    assert "logging some debug..." not in output
+    assert "logging some info..." not in output
+    assert "logging some warning..." in output
+    assert "logging some error..." in output
+
+
 def run_check_panic():
     info("started check panic...")
 
@@ -96,6 +117,8 @@ if __name__ == "__main__":
             run_check_panic()
         case "check_stream":
             run_check_stream()
+        case "check_level":
+            run_check_level()
         case _:
             error(f"unknown target: {target}")
             exit(1)

From 01cf8345a0ace0624fece387388971922653259a Mon Sep 17 00:00:00 2001
From: servostar <sven.vogel123@web.de>
Date: Thu, 2 May 2024 12:14:59 +0200
Subject: [PATCH 28/29] reverted change of #aa7c62f0 in devkit added script to
 run checks and tests in container

---
 .github/workflows/build-check-sdk.yaml |  4 +--
 Dockerfile                             |  9 ++++--
 run-check-test.sh                      | 40 ++++++++++++++++++++++++++
 sdk/Dockerfile                         |  4 +--
 4 files changed, 50 insertions(+), 7 deletions(-)
 create mode 100644 run-check-test.sh

diff --git a/.github/workflows/build-check-sdk.yaml b/.github/workflows/build-check-sdk.yaml
index 5b8f2aa..10a4811 100644
--- a/.github/workflows/build-check-sdk.yaml
+++ b/.github/workflows/build-check-sdk.yaml
@@ -2,7 +2,7 @@ name: "Build check gemstone in SDK"
 run-name: SDK build check to ${{ inputs.deploy_target }} by @${{ github.actor }}
 on: [push, pull_request]
 env:
-  SDK: 0.2.1-alpine-3.19.1
+  SDK: 0.2.2-alpine-3.19.1
 jobs:
   build-check-sdk:
     runs-on: ubuntu-latest
@@ -11,4 +11,4 @@ jobs:
     - name: Setup SDK
       run: docker pull servostar/gemstone:sdk-"$SDK" && docker build --tag gemstone:devkit-"$SDK" .
     - name: Compile
-      run: docker run gemstone:devkit-"$SDK" make check
+      run: docker run gemstone:devkit-"$SDK" sh run-check-test.sh
diff --git a/Dockerfile b/Dockerfile
index ce2db20..09e34b6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,9 +1,12 @@
-FROM servostar/gemstone:sdk-0.2.1-alpine-3.19.1
+FROM servostar/gemstone:sdk-0.2.2-alpine-3.19.1
 LABEL authors="servostar"
-LABEL version="0.2.1"
+LABEL version="0.2.2"
 LABEL description="docker image for setting up the build pipeline on SDK"
 LABEL website="https://github.com/Servostar/gemstone"
 
-RUN git clone https://github.com/Servostar/gemstone.git /home/lorang
+COPY --chown=lorang src /home/lorang/src
+COPY --chown=lorang tests /home/lorang/tests
+COPY --chown=lorang CMakeLists.txt /home/lorang/
+COPY --chown=lorang run-check-test.sh /home/lorang/
 
 RUN cmake .
diff --git a/run-check-test.sh b/run-check-test.sh
new file mode 100644
index 0000000..a2a3ab4
--- /dev/null
+++ b/run-check-test.sh
@@ -0,0 +1,40 @@
+#!/usr/bin/env sh
+
+# Author: Sven Vogel
+# Created: 02.05.2024
+# Description: Builds the project and runs tests
+#              Returns 0 on success and 1 when something went wrong
+
+echo "+--------------------------------------+"
+echo "| BUILDING all TARGETS                 |"
+echo "+--------------------------------------+"
+
+make -B
+if [ ! $? -eq 0 ]; then
+  echo "===> failed to build targets"
+  exit 1
+fi
+
+echo "+--------------------------------------+"
+echo "| RUNNING CODE CHECK                   |"
+echo "+--------------------------------------+"
+
+make check
+if [ ! $? -eq 0 ]; then
+  echo "===> failed code check..."
+  exit 1
+fi
+
+echo "+--------------------------------------+"
+echo "| RUNNING TESTS                        |"
+echo "+--------------------------------------+"
+
+ctest -VV --output-on-failure --schedule-random -j 4
+if [ ! $? -eq 0 ]; then
+  echo "===> failed tests..."
+  exit 1
+fi
+
+echo "+--------------------------------------+"
+echo "| COMPLETED CHECK + TESTS SUCCESSFULLY |"
+echo "+--------------------------------------+"
\ No newline at end of file
diff --git a/sdk/Dockerfile b/sdk/Dockerfile
index 4dbeb1f..1a6a677 100644
--- a/sdk/Dockerfile
+++ b/sdk/Dockerfile
@@ -1,11 +1,11 @@
 FROM alpine:3.19.1
 LABEL authors="servostar"
-LABEL version="0.2.1"
+LABEL version="0.2.2"
 LABEL description="base image for building the gemstone programming language compiler"
 LABEL website="https://github.com/Servostar/gemstone"
 
 # install dependencies
-RUN apk add build-base gcc make cmake bison flex git
+RUN apk add build-base gcc make cmake bison flex git python3
 
 # create user for build
 RUN adduser --disabled-password lorang

From f7a3faad2ea8e25f7bac95cebb34bc9ef1efb39c Mon Sep 17 00:00:00 2001
From: servostar <sven.vogel123@web.de>
Date: Sat, 4 May 2024 15:33:20 +0200
Subject: [PATCH 29/29] added test for accepting a file as input

---
 tests/CMakeLists.txt                |  3 ++-
 tests/input_file/CMakeLists.txt     |  9 ++++++++
 tests/input_file/test.gem           |  6 +++++
 tests/input_file/test_input_file.py | 36 +++++++++++++++++++++++++++++
 4 files changed, 53 insertions(+), 1 deletion(-)
 create mode 100644 tests/input_file/CMakeLists.txt
 create mode 100644 tests/input_file/test.gem
 create mode 100644 tests/input_file/test_input_file.py

diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
index 2602430..ab8afdc 100644
--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -6,4 +6,5 @@ set(CTEST_BINARY_DIRECTORY ${PROJECT_BINARY_DIR}/tests)
 
 # Provide test to run here or include another CMakeLists.txt
 
-add_subdirectory(logging)
\ No newline at end of file
+add_subdirectory(logging)
+add_subdirectory(input_file)
\ No newline at end of file
diff --git a/tests/input_file/CMakeLists.txt b/tests/input_file/CMakeLists.txt
new file mode 100644
index 0000000..263e769
--- /dev/null
+++ b/tests/input_file/CMakeLists.txt
@@ -0,0 +1,9 @@
+include(CTest)
+
+# ------------------------------------------------------- #
+# CTEST 1
+# test if the program accepts a file as input
+
+add_test(NAME input_file_check
+        WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}/bin/check
+        COMMAND python ${GEMSTONE_TEST_DIR}/input_file/test_input_file.py ${GEMSTONE_TEST_DIR}/input_file/test.gem)
diff --git a/tests/input_file/test.gem b/tests/input_file/test.gem
new file mode 100644
index 0000000..991288d
--- /dev/null
+++ b/tests/input_file/test.gem
@@ -0,0 +1,6 @@
+
+import "std.io"
+
+fun main {
+    print("Hello, World!!!")
+}
\ No newline at end of file
diff --git a/tests/input_file/test_input_file.py b/tests/input_file/test_input_file.py
new file mode 100644
index 0000000..3721dc0
--- /dev/null
+++ b/tests/input_file/test_input_file.py
@@ -0,0 +1,36 @@
+import os.path
+import subprocess
+import sys
+import logging
+from logging import info
+
+
+def check_accept():
+    info("testing handling of input file...")
+
+    logging.basicConfig(level=logging.INFO)
+
+    test_file_name = sys.argv[1]
+
+    p = subprocess.run(["./gsc", test_file_name], capture_output=True, text=True)
+
+    assert p.returncode == 0
+
+
+def check_abort():
+    info("testing handling of missing input file...")
+
+    logging.basicConfig(level=logging.INFO)
+
+    p = subprocess.run("./gsc", capture_output=True, text=True)
+
+    assert p.returncode == 1
+
+
+if __name__ == "__main__":
+    logging.basicConfig(level=logging.INFO)
+    info("check if binary exists...")
+    assert os.path.exists("./gsc")
+
+    check_accept()
+    check_abort()