From 19b1bf216fc5ed1bb0eedeea3bcebf810b99d635 Mon Sep 17 00:00:00 2001
From: Ali Mashtizadeh <ali@mashtizadeh.com>
Date: Sat, 10 Dec 2022 01:01:38 -0500
Subject: [PATCH] Split date out of shell

---
 SConstruct                |  2 ++
 bin/date/SConscript       | 23 ++++++++++++++++++++++
 bin/date/date.c           | 11 +++++++++++
 bin/shell/shell.c         | 40 ---------------------------------------
 release/bootdisk.manifest |  1 +
 5 files changed, 37 insertions(+), 40 deletions(-)
 create mode 100644 bin/date/SConscript
 create mode 100644 bin/date/date.c

diff --git a/SConstruct b/SConstruct
index c241f50..7e7b33c 100644
--- a/SConstruct
+++ b/SConstruct
@@ -174,6 +174,7 @@ SConscript('sys/SConscript', variant_dir='build/sys')
 SConscript('lib/libc/SConscript', variant_dir='build/lib/libc')
 #SConscript('lib/liblwip/SConscript', variant_dir='build/lib/liblwip')
 SConscript('bin/cat/SConscript', variant_dir='build/bin/cat')
+SConscript('bin/date/SConscript', variant_dir='build/bin/date')
 SConscript('bin/ethdump/SConscript', variant_dir='build/bin/ethdump')
 SConscript('bin/ethinject/SConscript', variant_dir='build/bin/ethinject')
 SConscript('bin/ls/SConscript', variant_dir='build/bin/ls')
@@ -201,6 +202,7 @@ if env["BOOTDISK"] == "1":
     bootdisk = env.BuildImage('#build/bootdisk.img', '#release/bootdisk.manifest')
     Depends(bootdisk, "#build/tools/newfs_o2fs/newfs_o2fs")
     Depends(bootdisk, "#build/bin/cat/cat")
+    Depends(bootdisk, "#build/bin/date/date")
     Depends(bootdisk, "#build/bin/ethdump/ethdump")
     Depends(bootdisk, "#build/bin/ethinject/ethinject")
     Depends(bootdisk, "#build/bin/ls/ls")
diff --git a/bin/date/SConscript b/bin/date/SConscript
new file mode 100644
index 0000000..cc40f90
--- /dev/null
+++ b/bin/date/SConscript
@@ -0,0 +1,23 @@
+import sys
+
+Import('env')
+
+cross_env = env.Clone()
+
+src = [ ]
+
+src_common = [
+    "date.c"
+]
+
+src.append(env["CRTBEGIN"])
+src.append(src_common)
+src.append(env["CRTEND"])
+
+cross_env.Append(LINKFLAGS = ['-nostdlib'])
+cross_env.Append(CPPFLAGS = ['-fno-builtin', '-nostdinc'])
+cross_env.Append(CPPPATH = ['#build/include'])
+cross_env.Append(LIBPATH = ['#build/lib/libc'], LIBS = ['c'])
+
+cross_env.Program("date", src)
+
diff --git a/bin/date/date.c b/bin/date/date.c
new file mode 100644
index 0000000..ad9a237
--- /dev/null
+++ b/bin/date/date.c
@@ -0,0 +1,11 @@
+
+#include <stdio.h>
+#include <time.h>
+
+int
+main(int argc, const char *argv[])
+{
+    time_t t = time(NULL);
+    fputs(ctime(&t), stdout);
+}
+
diff --git a/bin/shell/shell.c b/bin/shell/shell.c
index c28f65a..f675e2a 100644
--- a/bin/shell/shell.c
+++ b/bin/shell/shell.c
@@ -2,7 +2,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <time.h>
 
 // Castor Only
 #include <syscall.h>
@@ -33,11 +32,9 @@ void
 Cmd_Help(int argc, const char *argv[])
 {
     printf("bkpt       Trigger a kernel breakpoint\n");
-    printf("date       Print current date and time\n");
     printf("echo       Echo arguments\n");
     printf("exit       Exit shell\n");
     printf("help       Display the list of commands\n");
-    printf("spawn      Spawn a process\n");
 }
 
 void
@@ -52,39 +49,6 @@ Cmd_Echo(int argc, const char *argv[])
     printf("\n");
 }
 
-void
-Cmd_Date(int argc, const char *argv[])
-{
-    time_t t = time(NULL);
-    fputs(ctime(&t), stdout);
-}
-
-void
-Cmd_Hexdump(int argc, const char *argv[])
-{
-}
-
-void
-Cmd_Spawn(int argc, const char *argv[])
-{
-    uint64_t status;
-
-    if (argc != 2) {
-	fputs("Requires an argument\n", stdout);
-	return;
-    }
-
-    printf("%s\n", argv[1]);
-    status = OSSpawn(argv[1]);
-    if (SYSCALL_ERRCODE(status) != 0) {
-	printf("Spawn failed: %d\n", status);
-	return;
-    }
-    // XXX: check errors
-    status = OSWait(status);
-    printf("Process result: %d\n", status);
-}
-
 const char *searchpath[] = {
     "",
     "/sbin/",
@@ -160,14 +124,10 @@ DispatchCommand(char *buf)
 	Cmd_Help(argc, (const char **)argv);
     } else if (strcmp(argv[0], "bkpt") == 0) {
 	asm volatile("int3");
-    } else if (strcmp(argv[0], "date") == 0) {
-	Cmd_Date(argc, (const char **)argv);
     } else if (strcmp(argv[0], "echo") == 0) {
 	Cmd_Echo(argc, (const char **)argv);
     } else if (strcmp(argv[0], "exit") == 0) {
 	exit(0);
-    } else if (strcmp(argv[0], "spawn") == 0) {
-	Cmd_Spawn(argc, (const char **)argv);
     } else if (strcmp(argv[0], "#") == 0) {
 	// Ignore comments
     } else if (buf[0] == '\0') {
diff --git a/release/bootdisk.manifest b/release/bootdisk.manifest
index e9177c4..941175c 100644
--- a/release/bootdisk.manifest
+++ b/release/bootdisk.manifest
@@ -6,6 +6,7 @@ DIR /
   END
   DIR bin
     FILE cat build/bin/cat/cat
+    FILE date build/bin/date/date
     FILE ethdump build/bin/ethdump/ethdump
     FILE ethinject build/bin/ethinject/ethinject
     FILE ls build/bin/ls/ls