RetroFetch: Add a silly neofetch-like program.

The idea is to print out various system info suitable for screenshots. :^)

Base/res/serenity.ansi.txt

@@ -0,0 +1,21 @@
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+

Demos/RetroFetch/.gitignore

@@ -0,0 +1,3 @@
+RetroFetch
+*.o
+*.d

Demos/RetroFetch/Makefile

@@ -0,0 +1,21 @@
+include ../../Makefile.common
+
+OBJS = main.o
+
+APP = RetroFetch
+
+DEFINES += -DUSERLAND
+
+all: $(APP)
+
+$(APP): $(OBJS)
+	$(LD) -o $(APP) $(LDFLAGS) $(OBJS) -lc
+
+.cpp.o:
+	@echo "CXX $<"; $(CXX) $(CXXFLAGS) -o $@ -c $<
+
+-include $(OBJS:%.o=%.d)
+
+clean:
+	@echo "CLEAN"; rm -f $(APP) $(OBJS) *.d
+

Demos/RetroFetch/main.cpp

@@ -0,0 +1,71 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <AK/Assertions.h>
+
+static void moveto(int row, int column)
+{
+    printf("\033[%d;%dH", row, column);
+    fflush(stdout);
+}
+
+int main()
+{
+    printf("\033[3J\033[H\033[2J");
+    fflush(stdout);
+    int fd = open("/res/serenity.ansi.txt", O_RDONLY);
+    if (fd < 0) {
+        perror("open");
+        return 0;
+    }
+    for (;;) {
+        char buffer[BUFSIZ];
+        int nread = read(fd, buffer, sizeof(buffer));
+        if (nread < 0) {
+            perror("read");
+            return 1;
+        }
+        if (nread == 0)
+            break;
+        int nwritten = write(STDOUT_FILENO, buffer, nread);
+        if (nwritten < 0) {
+            perror("write");
+            return 1;
+        }
+        ASSERT(nwritten == nread);
+    }
+    close(fd);
+
+    printf("\n");
+    printf("\033[s");
+
+    char hostname[128];
+    int rc = gethostname(hostname, sizeof(hostname));
+    if (rc < 0) {
+        perror("gethostname");
+        return 1;
+    }
+
+    int column = 42;
+
+    moveto(3, column);
+    printf("%s@%s\n", getlogin(), hostname);
+
+    moveto(4, column);
+    printf("\033[34;1mOS:\033[0m Serenity\n");
+
+    moveto(5, column);
+    printf("\033[34;1mKernel:\033[0m ");
+    fflush(stdout);
+    system("uname -nrm");
+
+    moveto(6, column);
+    printf("\033[34;1mUptime:\033[0m ");
+    fflush(stdout);
+    system("uptime");
+
+    printf("\033[u\n");
+    return 0;
+}
+

Kernel/makeall.sh

@@ -50,6 +50,8 @@ $make_cmd -C ../Shell clean && \
 $make_cmd -C ../Shell && \
 $make_cmd -C ../Demos/HelloWorld clean && \
 $make_cmd -C ../Demos/HelloWorld && \
+$make_cmd -C ../Demos/RetroFetch clean && \
+$make_cmd -C ../Demos/RetroFetch && \
 $make_cmd clean &&\
 $make_cmd && \
 sudo ./sync.sh

Kernel/sync.sh

@@ -80,6 +80,7 @@ ln -s Shell mnt/bin/sh
 cp -v kernel.map mnt/
 cp -v ../Demos/HelloWorld/HelloWorld mnt/bin/HelloWorld
 ln -s HelloWorld mnt/bin/hw
+cp -v ../Demos/RetroFetch/RetroFetch mnt/bin/RetroFetch
 
 # Run local sync script, if it exists
 if [ -f sync-local.sh ]; then