From d48179748464121ce1835b18c583a8fc7b36e756 Mon Sep 17 00:00:00 2001
From: Colin Patrick McCabe <cmccabe@alumni.cmu.edu>
Date: Tue, 6 Sep 2011 12:01:54 -0700
Subject: [PATCH] rbd.cc: use new argument parsing stuff

Signed-off-by: Colin McCabe <colin.mccabe@dreamhost.com>
---
 src/rbd.cc | 76 +++++++++++++++++++++++++++++++-----------------------
 1 file changed, 44 insertions(+), 32 deletions(-)

diff --git a/src/rbd.cc b/src/rbd.cc
index 6a7f991fc653b..bc745551df153 100644
--- a/src/rbd.cc
+++ b/src/rbd.cc
@@ -823,7 +823,6 @@ int main(int argc, const char **argv)
   librbd::Image image;
 
   vector<const char*> args;
-  DEFINE_CONF_VARS(usage_exit);
 
   argv_to_vec(argc, argv, args);
   env_to_vec(args);
@@ -837,42 +836,55 @@ int main(int argc, const char **argv)
   int order = 0;
   const char *imgname = NULL, *snapname = NULL, *destname = NULL, *dest_poolname = NULL, *path = NULL, *secretfile = NULL, *user = NULL, *devpath = NULL;
   bool is_snap_cmd = false;
-  FOR_EACH_ARG(args) {
-    if (CEPH_ARGPARSE_EQ("help", 'h')) {
+
+  std::string val;
+  std::ostringstream err;
+  long long sizell = 0;
+  for (std::vector<const char*>::iterator i = args.begin(); i != args.end(); ) {
+    if (ceph_argparse_double_dash(args, i)) {
+      break;
+    } else if (ceph_argparse_flag(args, i, "-h", "--help", (char*)NULL)) {
       usage();
       exit(0);
-    } else if (CEPH_ARGPARSE_EQ("pool", 'p')) {
-      CEPH_ARGPARSE_SET_ARG_VAL(&poolname, OPT_STR);
-    } else if (CEPH_ARGPARSE_EQ("dest-pool", '\0')) {
-      CEPH_ARGPARSE_SET_ARG_VAL(&dest_poolname, OPT_STR);
-    } else if (CEPH_ARGPARSE_EQ("snap", '\0')) {
-      CEPH_ARGPARSE_SET_ARG_VAL(&snapname, OPT_STR);
-    } else if (CEPH_ARGPARSE_EQ("image", 'i')) {
-      CEPH_ARGPARSE_SET_ARG_VAL(&imgname, OPT_STR);
-    } else if (CEPH_ARGPARSE_EQ("size", 's')) {
-      CEPH_ARGPARSE_SET_ARG_VAL(&size, OPT_LONGLONG);
-      size <<= 20; // MB -> bytes
-    } else if (CEPH_ARGPARSE_EQ("order", '\0')) {
-      CEPH_ARGPARSE_SET_ARG_VAL(&order, OPT_INT);
-    } else if (CEPH_ARGPARSE_EQ("path", '\0')) {
-      CEPH_ARGPARSE_SET_ARG_VAL(&path, OPT_STR);
-    } else if (CEPH_ARGPARSE_EQ("dest", '\0')) {
-      CEPH_ARGPARSE_SET_ARG_VAL(&destname, OPT_STR);
-    } else if (CEPH_ARGPARSE_EQ("secret", '\0')) {
-      CEPH_ARGPARSE_SET_ARG_VAL(&secretfile, OPT_STR);
-    } else if (CEPH_ARGPARSE_EQ("user", '\0')) {
-      CEPH_ARGPARSE_SET_ARG_VAL(&user, OPT_STR);
+    } else if (ceph_argparse_witharg(args, i, &val, "-p", "--pool", (char*)NULL)) {
+      poolname = strdup(val.c_str());
+    } else if (ceph_argparse_witharg(args, i, &val, "--dest-pool", (char*)NULL)) {
+      dest_poolname = strdup(val.c_str());
+    } else if (ceph_argparse_witharg(args, i, &val, "--snap", (char*)NULL)) {
+      snapname = strdup(val.c_str());
+    } else if (ceph_argparse_witharg(args, i, &val, "-i", "--image", (char*)NULL)) {
+      imgname = strdup(val.c_str());
+    } else if (ceph_argparse_withlonglong(args, i, &sizell, &err, "-s", "--size", (char*)NULL)) {
+      if (!err.str().empty()) {
+	cerr << err.str() << std::endl;
+	exit(EXIT_FAILURE);
+      }
+      size = sizell;
+    } else if (ceph_argparse_withint(args, i, &order, &err, "--order", (char*)NULL)) {
+      if (!err.str().empty()) {
+	cerr << err.str() << std::endl;
+	exit(EXIT_FAILURE);
+      }
+    } else if (ceph_argparse_witharg(args, i, &val, "--path", (char*)NULL)) {
+      path = strdup(val.c_str());
+    } else if (ceph_argparse_witharg(args, i, &val, "--dest", (char*)NULL)) {
+      destname = strdup(val.c_str());
+    } else if (ceph_argparse_witharg(args, i, &val, "--secret", (char*)NULL)) {
+      secretfile = strdup(val.c_str());
+    } else if (ceph_argparse_witharg(args, i, &val, "--user", (char*)NULL)) {
+      user = strdup(val.c_str());
     } else {
+      const char *v = *i;
       if (!opt_cmd) {
-        opt_cmd = get_cmd(CEPH_ARGPARSE_VAL, &is_snap_cmd);
+        opt_cmd = get_cmd(v, &is_snap_cmd);
         if (opt_cmd < 0) {
-          cerr << "invalid command: " << CEPH_ARGPARSE_VAL << std::endl;
+          cerr << "invalid command: " << v << std::endl;
           usage_exit();
         }
       } else {
         switch (opt_cmd) {
           case OPT_LIST:
-            set_conf_param(CEPH_ARGPARSE_VAL, &poolname, NULL);
+            set_conf_param(v, &poolname, NULL);
             break;
           case OPT_INFO:
           case OPT_CREATE:
@@ -884,20 +896,20 @@ int main(int argc, const char **argv)
           case OPT_SNAP_LIST:
           case OPT_WATCH:
           case OPT_MAP:
-            set_conf_param(CEPH_ARGPARSE_VAL, &imgname, NULL);
+            set_conf_param(v, &imgname, NULL);
             break;
           case OPT_UNMAP:
-            set_conf_param(CEPH_ARGPARSE_VAL, &devpath, NULL);
+            set_conf_param(v, &devpath, NULL);
             break;
           case OPT_EXPORT:
-            set_conf_param(CEPH_ARGPARSE_VAL, &imgname, &path);
+            set_conf_param(v, &imgname, &path);
             break;
           case OPT_IMPORT:
-            set_conf_param(CEPH_ARGPARSE_VAL, &path, &destname);
+            set_conf_param(v, &path, &destname);
             break;
           case OPT_COPY:
           case OPT_RENAME:
-            set_conf_param(CEPH_ARGPARSE_VAL, &imgname, &destname);
+            set_conf_param(v, &imgname, &destname);
             break;
         }
       }