7 files changed, 107 insertions, 6 deletions

diff --git a/.clang-format b/.clang-format
new file mode 100644
index 0000000..21efcac
--- /dev/null
+++ b/.clang-format
@@ -0,0 +1,45 @@
+---
+AccessModifierOffset: -4
+AlignConsecutiveAssignments: 'true'
+AlignConsecutiveDeclarations: 'true'
+AlignEscapedNewlines: Left
+AlignTrailingComments: 'true'
+AlwaysBreakAfterReturnType: TopLevelDefinitions
+BreakBeforeBraces: Stroustrup
+BreakConstructorInitializers: BeforeComma
+BreakInheritanceList: BeforeComma
+ColumnLimit: '0'
+CompactNamespaces: 'false'
+Cpp11BracedListStyle: 'false'
+FixNamespaceComments: 'true'
+IncludeBlocks: Regroup
+IncludeCategories:
+    - Regex: '^.*(precomp|pch|stdafx)'
+      Priority: -1
+    - Regex: '^<.*>'
+      Priority: 1
+    - Regex: '^".*"'
+      Priority: 2
+    - Regex: '.*'
+      Priority: 3
+IndentCaseLabels: 'false'
+IndentPPDirectives: AfterHash
+IndentWidth: '4'
+IndentWrappedFunctionNames: 'false'
+KeepEmptyLinesAtTheStartOfBlocks: 'false'
+PointerAlignment: Right
+SortIncludes: 'true'
+SpaceAfterCStyleCast: 'true'
+SpaceAfterTemplateKeyword: 'false'
+SpaceBeforeAssignmentOperators: 'true'
+SpaceBeforeParens: ControlStatements
+SpaceBeforeRangeBasedForLoopColon: 'false'
+SpaceInEmptyParentheses: 'false'
+SpacesInAngles: 'false'
+SpacesInCStyleCastParentheses: 'false'
+SpacesInConditionalStatement: 'true'
+SpacesInParentheses: 'false'
+Standard: Auto
+TabWidth: '4'
+UseTab: ForIndentation
+...
diff --git a/.clang-tidy b/.clang-tidy
new file mode 100644
index 0000000..0bceb5b
--- /dev/null
+++ b/.clang-tidy
@@ -0,0 +1,19 @@
+---
+Checks: "*,
+        -abseil-*,
+        -altera-*,
+        -android-*,
+        -fuchsia-*,
+        -google-*,
+        -llvm*,
+        -modernize-use-trailing-return-type,
+        -zircon-*,
+        -readability-else-after-return,
+        -readability-static-accessed-through-instance,
+        -readability-avoid-const-params-in-decls,
+        -cppcoreguidelines-non-private-member-variables-in-classes,
+        -misc-non-private-member-variables-in-classes,
+"
+WarningsAsErrors: ''
+HeaderFilterRegex: ''
+FormatStyle: none
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3a5e204
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+bin/
+obj/
+database.db
diff --git a/compile_flags.txt b/compile_flags.txt
new file mode 100644
index 0000000..d87afcf
--- /dev/null
+++ b/compile_flags.txt
@@ -0,0 +1,4 @@
+-Wall
+-Werror
+-pedantic
+-std=c99
diff --git a/config.mk b/config.mk
new file mode 100644
index 0000000..ed945d9
--- /dev/null
+++ b/config.mk
@@ -0,0 +1,2 @@
+CFLAGS=-Wall -Werror -pedantic -std=c99
+LDFLAGS=
diff --git a/makefile b/makefile
new file mode 100644
index 0000000..da7631a
--- /dev/null
+++ b/makefile
@@ -0,0 +1,24 @@
+include config.mk
+
+BIN=bin/db-test
+OBJS=obj/db-test.o
+
+release: $(BIN)
+release: CFLAGS+=-DNDEBUG -O2
+
+debug: $(BIN)
+debug: CFLAGS+=-g
+
+$(BIN): $(OBJS) | bin
+        cc $(LDFLAGS) $^ -o $@
+
+obj/%.o: src/%.c | obj
+        cc $(CFLAGS) -c $< -o $@
+
+bin obj:
+        mkdir -p $@
+
+clean:
+        rm -rf bin obj
+
+.PHONY: release debug clean
diff --git a/db-test.c b/src/db-test.c
index 2789ce0..439ed79 100644
--- a/db-test.c
+++ b/src/db-test.c
@@ -1,22 +1,24 @@
 #include <stdio.h>
-#include <stdio.h>
 #include <stdlib.h>
 #include <limits.h>
 
 #include <db.h>
 #include <fcntl.h>
 
+#define USERNAME_LENGTH 20
+#define FULLNAME_LENGTH 50
+
 typedef struct {
-        char username[20];
-        char fullname[50];
+        char username[USERNAME_LENGTH];
+        char fullname[FULLNAME_LENGTH];
         int age;
 } user_type;
 
 int main(void)
 {
-        DB *db = dbopen("database.db", O_RDWR | O_CREAT, 0644, DB_BTREE, NULL);
+        DB *db = dbopen("./database.db", O_RDWR | O_CREAT, 0644, DB_BTREE, NULL); // NOLINT
         if ( db != NULL ) {
-                fprintf(stderr, "Datenbank eröffnet...\n");
+                (void) fprintf(stderr, "Datenbank eröffnet...\n");
 
 #if INSERT
                 user_type users[] = {
@@ -50,7 +52,9 @@ int main(void)
 #endif
 
                 {
-                        DBT key, data;
+                        DBT key;
+                        DBT data;
+
                         int err = db->seq(db, &key, &data, R_FIRST);
                         while ( !err ) {
                                 user_type *user = data.data;