Test the 'command' and 'command_lines' functions thoroughly.

1 files changed, 15 insertions, 0 deletions

diff --git a/java/com/redhat/et/libguestfs/GuestFS.java b/java/com/redhat/et/libguestfs/GuestFS.java
index 26f1aaa6..70efb8d0 100644
--- a/java/com/redhat/et/libguestfs/GuestFS.java
+++ b/java/com/redhat/et/libguestfs/GuestFS.java
@@ -1646,6 +1646,13 @@ public class GuestFS {
    * Subsequent elements are parameters. The list must be
    * non-empty (ie. must contain a program name).
    * 
+   * The return value is anything printed to *stdout* by the
+   * command.
+   * 
+   * If the command returns a non-zero exit status, then this
+   * function returns an error message. The error message
+   * string is the content of *stderr* from the command.
+   * 
    * The $PATH environment variable will contain at least
    * "/usr/bin" and "/bin". If you require a program from
    * another location, you should provide the full path in
@@ -1657,6 +1664,10 @@ public class GuestFS {
    * ensure all filesystems that are needed are mounted at
    * the right locations.
    * 
+   * Because of the message protocol, there is a transfer
+   * limit of somewhere between 2MB and 4MB. To transfer
+   * large files you should use FTP.
+   * 
    * @throws LibGuestFSException
    */
   public String command (String[] arguments)
@@ -1675,6 +1686,10 @@ public class GuestFS {
    * This is the same as "g.command", but splits the result
    * into a list of lines.
    * 
+   * Because of the message protocol, there is a transfer
+   * limit of somewhere between 2MB and 4MB. To transfer
+   * large files you should use FTP.
+   * 
    * @throws LibGuestFSException
    */
   public String[] command_lines (String[] arguments)