Allow goose to be used as a library for folks who want to build their own package management

Author: wess

.github/workflows/ci.yml

@@ -16,4 +16,7 @@ jobs:
         run: make clean && make
 
       - name: Verify binary
-        run: ./goose --version
+        run: ./build/goose --version
+
+      - name: Verify library
+        run: test -f build/libgoose.a

.github/workflows/release.yml

@@ -60,7 +60,13 @@ jobs:
         run: make clean && make
 
       - name: Package
-        run: tar czf ${{ matrix.artifact }}.tar.gz goose
+        run: |
+          mkdir -p staging/bin staging/lib staging/include/goose/headers
+          cp build/goose staging/bin/
+          cp build/libgoose.a staging/lib/
+          cp include/goose.h staging/include/goose/
+          cp src/headers/*.h staging/include/goose/headers/
+          tar czf ${{ matrix.artifact }}.tar.gz -C staging .
 
       - name: Upload artifact
         uses: actions/upload-artifact@v4

Makefile

@@ -1,7 +1,7 @@
 VERSION = $(shell cat VERSION)
 
 CC      = cc
-CFLAGS  = -Wall -Wextra -std=c11 -Ilibs/libyaml/include -DGOOSE_VERSION_FROM_FILE=\"$(VERSION)\"
+CFLAGS  = -Wall -Wextra -std=c11 -Isrc -Ilibs/libyaml/include -DGOOSE_VERSION_FROM_FILE=\"$(VERSION)\"
 LDFLAGS =
 
 BUILD    = build
@@ -10,19 +10,29 @@ OBJDIR   = $(BUILD)/obj
 YAML_SRC = $(wildcard libs/libyaml/src/*.c)
 YAML_OBJ = $(YAML_SRC:libs/libyaml/src/%.c=$(OBJDIR)/yaml_%.o)
 
-SRC      = $(wildcard src/*.c)
+SRC      = $(filter-out src/main.c, $(wildcard src/*.c))
 CMD_SRC  = $(wildcard src/cmd/*.c)
-OBJ      = $(SRC:src/%.c=$(OBJDIR)/%.o) $(CMD_SRC:src/cmd/%.c=$(OBJDIR)/cmd/%.o)
+LIB_OBJ  = $(SRC:src/%.c=$(OBJDIR)/%.o) $(CMD_SRC:src/cmd/%.c=$(OBJDIR)/cmd/%.o) $(YAML_OBJ)
+CLI_OBJ  = $(OBJDIR)/main.o
+
+LIB      = $(BUILD)/libgoose.a
 BIN      = $(BUILD)/goose
 
 PREFIX  ?= /usr/local
 
-.PHONY: all clean install uninstall
+.PHONY: all lib cli clean install uninstall
+
+all: lib cli
+
+lib: $(LIB)
+
+cli: $(BIN)
 
-all: $(BIN)
+$(LIB): $(LIB_OBJ)
+	ar rcs $@ $^
 
-$(BIN): $(OBJ) $(YAML_OBJ)
-	$(CC) $(OBJ) $(YAML_OBJ) -o $@ $(LDFLAGS)
+$(BIN): $(CLI_OBJ) $(LIB)
+	$(CC) $(CLI_OBJ) $(LIB) -o $@ $(LDFLAGS)
 
 $(OBJDIR)/%.o: src/%.c | $(OBJDIR)
 	$(CC) $(CFLAGS) -c $< -o $@
@@ -42,9 +52,18 @@ $(OBJDIR):
 clean:
 	rm -rf $(BUILD)
 
-install: $(BIN)
+install: all
 	install -d $(PREFIX)/bin
 	install -m 755 $(BIN) $(PREFIX)/bin/goose
+	install -d $(PREFIX)/lib
+	install -m 644 $(LIB) $(PREFIX)/lib/libgoose.a
+	install -d $(PREFIX)/include/goose/headers
+	install -m 644 include/goose.h $(PREFIX)/include/goose/goose.h
+	for h in src/headers/*.h; do \
+		install -m 644 "$$h" $(PREFIX)/include/goose/headers/; \
+	done
 
 uninstall:
 	rm -f $(PREFIX)/bin/goose
+	rm -f $(PREFIX)/lib/libgoose.a
+	rm -rf $(PREFIX)/include/goose

VERSION

@@ -1 +1 @@
-0.0.3
+0.1.0

include/goose.h

@@ -0,0 +1,14 @@
+#ifndef GOOSE_H
+#define GOOSE_H
+
+#include "headers/main.h"
+#include "headers/color.h"
+#include "headers/config.h"
+#include "headers/build.h"
+#include "headers/pkg.h"
+#include "headers/fs.h"
+#include "headers/lock.h"
+#include "headers/cmake.h"
+#include "headers/cmd.h"
+
+#endif

src/headers/main.h

@@ -11,6 +11,4 @@
 #define GOOSE_PKG_DIR "packages"
 #define GOOSE_BUILD   "build"
 
-void usage(void);
-
 #endif

src/main.c

@@ -25,7 +25,7 @@ static Command commands[] = {
     {NULL, NULL, NULL}
 };
 
-void usage(void) {
+static void usage(void) {
     cprintf(CLR_GREEN, "goose %s", GOOSE_VERSION);
     printf(" - A package manager for C\n\n");
     printf("Usage: goose <command> [options]\n\n");