feat: add CI/CD workflows, clang-format, and clang-tidy

.clang-format

@@ -0,0 +1,9 @@
+BasedOnStyle: LLVM
+IndentWidth: 4
+ColumnLimit: 100
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+BreakBeforeBraces: Attach
+PointerAlignment: Right
+SpaceAfterCStyleCast: true
+SpaceBeforeParens: ControlStatements

.clang-tidy

@@ -0,0 +1,20 @@
+Checks: >
+  bugprone-*,
+  clang-analyzer-*,
+  performance-*,
+  portability-*,
+  readability-*,
+  -readability-identifier-length,
+  -readability-magic-numbers,
+  -readability-isolate-declaration,
+  -readability-function-cognitive-complexity,
+  -bugprone-multi-level-implicit-pointer-conversion,
+  -bugprone-easily-swappable-parameters,
+  -bugprone-branch-clone,
+  -bugprone-implicit-widening-of-multiplication-result,
+  -clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling,
+  -clang-analyzer-core.NonNullParamChecker,
+  -clang-analyzer-security.ArrayBound,
+  -clang-analyzer-unix.StdCLibraryFunctions,
+  -clang-analyzer-core.NullDereference
+WarningsAsErrors: ''

.github/workflows/ci.yml

@@ -0,0 +1,35 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches: [main]
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install cmake
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y cmake
+      - name: Build and test
+        run: ./run_tests.sh
+
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install lint tools
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y clang-format clang-tidy
+      - name: clang-format (dry-run)
+        run: |
+          clang-format --dry-run --Werror $(find src include tests -name '*.c' -o -name '*.h')
+      - name: Configure for clang-tidy
+        run: cmake -B cmake-build-debug -S . -DCMAKE_EXPORT_COMPILE_COMMANDS=ON
+      - name: clang-tidy
+        run: |
+          clang-tidy -p cmake-build-debug -warnings-as-errors=* $(find src include -name '*.c')

.github/workflows/release.yml

@@ -0,0 +1,28 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*.*.*'
+
+permissions:
+  contents: write
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install cmake
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y cmake
+      - name: Build (Release)
+        run: |
+          cmake -B build -S . -DCMAKE_BUILD_TYPE=Release
+          cmake --build build
+      - name: Create release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: build/shell
+          generate_release_notes: true

README.md

@@ -1,56 +1,58 @@
-# Trigger
-
-## Overview
-
-This project aims to create a clean, efficient shell.
-
-## Building
-
-```bash
-cmake -B cmake-build-debug -S .
-cmake --build cmake-build-debug
-```
-
-## Running
-
-```bash
-./cmake-build-debug/shell
-```
-
-## Testing
-
-The project includes comprehensive unit tests for all modules. To run the tests:
-
-```bash
-# Quick way
-./run_tests.sh
-
-# Or manually
-cd cmake-build-debug
-ctest --verbose
-```
-
-All tests use a custom lightweight testing framework that provides colored output and clear assertion messages.
-
-## Goals
-
-- Develop a functional, well‑structured shell.
-- Ensure the shell is performant and easy to use.
-- Continuously improve the project as I learn more.
-- Maintain high code quality with unit tests.
-
-## Inspiration
-
-I’ll start by adapting the simple shell tutorial from Brennan Baker:
-
-<https://brennan.io/2015/01/16/write-a-shell-in-c/>
-
-This will serve as a solid foundation, which I'll later expand and customize. The resulting shell, named **Trigger**, will combine the tutorial's core ideas with additional features and optimizations.
-
-## Development
-
-Feature development is a collaboration between the project author and AI tooling: the
-author reviews, directs, and integrates AI-generated contributions alongside
-hand-written logic. All changes undergo code review before landing.
-
-Feel free to explore the repository, submit issues, or contribute improvements.
+# Trigger
+
+[![CI](https://github.com/melogtm/trigger/actions/workflows/ci.yml/badge.svg)](https://github.com/melogtm/trigger/actions/workflows/ci.yml)
+
+## Overview
+
+This project aims to create a clean, efficient shell.
+
+## Building
+
+```bash
+cmake -B cmake-build-debug -S .
+cmake --build cmake-build-debug
+```
+
+## Running
+
+```bash
+./cmake-build-debug/shell
+```
+
+## Testing
+
+The project includes comprehensive unit tests for all modules. To run the tests:
+
+```bash
+# Quick way
+./run_tests.sh
+
+# Or manually
+cd cmake-build-debug
+ctest --verbose
+```
+
+All tests use a custom lightweight testing framework that provides colored output and clear assertion messages.
+
+## Goals
+
+- Develop a functional, well‑structured shell.
+- Ensure the shell is performant and easy to use.
+- Continuously improve the project as I learn more.
+- Maintain high code quality with unit tests.
+
+## Inspiration
+
+I’ll start by adapting the simple shell tutorial from Brennan Baker:
+
+<https://brennan.io/2015/01/16/write-a-shell-in-c/>
+
+This will serve as a solid foundation, which I'll later expand and customize. The resulting shell, named **Trigger**, will combine the tutorial's core ideas with additional features and optimizations.
+
+## Development
+
+Feature development is a collaboration between the project author and AI tooling: the
+author reviews, directs, and integrates AI-generated contributions alongside
+hand-written logic. All changes undergo code review before landing.
+
+Feel free to explore the repository, submit issues, or contribute improvements.

include/builtins.h

@@ -1,16 +1,16 @@
-#ifndef BUILTINS_H
-#define BUILTINS_H
-
-int trigger_cd(char **args);
-int trigger_help(char **args);
-int trigger_exit(char **args);
-int trigger_pwd(char **args);
-int trigger_echo(char **args);
-int trigger_export(char **args);
-int trigger_unset(char **args);
-int trigger_num_builtins(void);
-
-extern char *builtin_str[];
-extern int (*builtin_func[])(char **);
-
-#endif
+#ifndef BUILTINS_H
+#define BUILTINS_H
+
+int trigger_cd(char **args);
+int trigger_help(char **args);
+int trigger_exit(char **args);
+int trigger_pwd(char **args);
+int trigger_echo(char **args);
+int trigger_export(char **args);
+int trigger_unset(char **args);
+int trigger_num_builtins(void);
+
+extern char *builtin_str[];
+extern int (*builtin_func[])(char **);
+
+#endif

include/execute.h

@@ -1,11 +1,10 @@
-#ifndef EXECUTE_H
-#define EXECUTE_H
-
-#define CHILD_PROCESS_EXITED 0
-#define EXEC_RETURNED_FAILURE (-1)
-
-int trigger_launch(char **args);
-int trigger_execute(char ***args_ptr, int **glob_eligible_ptr);
-
-#endif
-
+#ifndef EXECUTE_H
+#define EXECUTE_H
+
+#define CHILD_PROCESS_EXITED 0
+#define EXEC_RETURNED_FAILURE (-1)
+
+int trigger_launch(char **args);
+int trigger_execute(char ***args_ptr, int **glob_eligible_ptr);
+
+#endif

include/glob_expand.h

@@ -1,6 +1,6 @@
-#ifndef GLOB_EXPAND_H
-#define GLOB_EXPAND_H
-
-char **expand_globs(char **argv, int **glob_eligible_ptr);
-
-#endif
+#ifndef GLOB_EXPAND_H
+#define GLOB_EXPAND_H
+
+char **expand_globs(char **argv, int **glob_eligible_ptr);
+
+#endif

include/input.h

@@ -1,13 +1,12 @@
-#ifndef INPUT_H
-#define INPUT_H
-
-#define TRIGGER_AUTOMATIC_BUFFER_SIZE 0
-#define GET_LINE_REACHED_END_OF_FILE_OR_ERROR (-1)
-#define TRIGGER_TOK_DELIM " \t\r\n\a"
-
-char *trigger_read_line(void);
-char **trigger_split_line(const char *line);
-char **trigger_split_line_ex(const char *line, int **out_glob_eligible);
-
-#endif
-
+#ifndef INPUT_H
+#define INPUT_H
+
+#define TRIGGER_AUTOMATIC_BUFFER_SIZE 0
+#define GET_LINE_REACHED_END_OF_FILE_OR_ERROR (-1)
+#define TRIGGER_TOK_DELIM " \t\r\n\a"
+
+char *trigger_read_line(void);
+char **trigger_split_line(const char *line);
+char **trigger_split_line_ex(const char *line, int **out_glob_eligible);
+
+#endif

include/pipeline.h

@@ -1,14 +1,14 @@
-#ifndef PIPELINE_H
-#define PIPELINE_H
-
-typedef struct {
-    char **argv;
-    char *infile;
-    char *outfile;
-    int append;
-} PipelineStage;
-
-PipelineStage *trigger_parse_pipeline(char **tokens, int *num_stages);
-int trigger_execute_pipeline(PipelineStage *stages, int num_stages);
-
-#endif
+#ifndef PIPELINE_H
+#define PIPELINE_H
+
+typedef struct {
+    char **argv;
+    char *infile;
+    char *outfile;
+    int append;
+} PipelineStage;
+
+PipelineStage *trigger_parse_pipeline(char **tokens, int *num_stages);
+int trigger_execute_pipeline(PipelineStage *stages, int num_stages);
+
+#endif