fix: image name parsing (runfinch#1386)

Signed-off-by: Shubharanshu Mahapatra <[email protected]>

Author: Shubhranshu153

cmd/finch/nerdctl_darwin_test.go

@@ -1204,6 +1204,33 @@ func TestNerdctlCommand_run(t *testing.T) {
 				c.EXPECT().Run()
 			},
 		},
+		{
+			name:    "with single letter entry in args",
+			cmdName: "run",
+			fc:      &config.Finch{},
+			args:    []string{"-i", "--name", "myContainer", "--rm", "a", "env"},
+			wantErr: nil,
+			mockSvc: func(
+				_ *testing.T,
+				lcc *mocks.NerdctlCmdCreator,
+				_ *mocks.CommandCreator,
+				ncsd *mocks.NerdctlCommandSystemDeps,
+				logger *mocks.Logger,
+				ctrl *gomock.Controller,
+				_ afero.Fs,
+			) {
+				getVMStatusC := mocks.NewCommand(ctrl)
+				lcc.EXPECT().CreateWithoutStdio("ls", "-f", "{{.Status}}", limaInstanceName).Return(getVMStatusC)
+				getVMStatusC.EXPECT().Output().Return([]byte("Running"), nil)
+				logger.EXPECT().Debugf("Status of virtual machine: %s", "Running")
+				AddEmptyEnvLookUps(ncsd)
+				c := mocks.NewCommand(ctrl)
+				lcc.EXPECT().
+					Create("shell", limaInstanceName, "sudo", "-E", nerdctlCmdName, "container", "run",
+						"-i", "--name", "myContainer", "--rm", "a", "env").Return(c)
+				c.EXPECT().Run()
+			},
+		},
 	}
 
 	for _, tc := range testCases {

cmd/finch/nerdctl_remote.go

@@ -199,14 +199,14 @@ func (nc *nerdctlCommand) run(cmdName string, args []string) error {
 				// begins with --<long_flag>
 				//    e.g. --sig-proxy=false
 				nerdctlArgs = append(nerdctlArgs, arg)
-			case shortFlagBoolSet.Has(arg[:2]):
+			case len(arg) > 1 && shortFlagBoolSet.Has(arg[:2]):
 				// or begins with a defined short no argument flag, but is adjacent to something
 				//   -????   one or more short bool flags; no following values
 				//   -????="<value>" one or more short bool flags ending with a short arg flag equated to value
 				//   -????"<value>" one or more short bool flags ending with a short arg flag concatenated to value
 				addArg := nc.handleMultipleShortFlags(shortFlagBoolSet, shortFlagArgSet, args, i)
 				nerdctlArgs = append(nerdctlArgs, addArg)
-			case shortFlagArgSet.Has(arg) || shortFlagArgSet.Has(arg[:2]):
+			case shortFlagArgSet.Has(arg) || (len(arg) > 1 && shortFlagArgSet.Has(arg[:2])):
 				// exact match to a short arg flag: -?
 				//     next arg must be the <value>
 				// or begins with a short arg flag: