This command removes all LVM logical volumes, volume groups
and physical volumes.");
+ ("file", (RString "description", [String "path"]), 49, [],
+ [InitBasicFS, TestOutput (
+ [["touch"; "/new"];
+ ["file"; "/new"]], "empty");
+ InitBasicFS, TestOutput (
+ [["write_file"; "/new"; "some content\n"; "0"];
+ ["file"; "/new"]], "ASCII text");
+ InitBasicFS, TestLastFail (
+ [["file"; "/nofile"]])],
+ "determine file type",
+ "\
+This call uses the standard L<file(1)> command to determine
+the type or contents of the file. This also works on devices,
+for example to find out whether a partition contains a filesystem.
+
+The exact command which runs is C<file -bsL path>. Note in
+particular that the filename is not prepended to the output
+(the C<-b> option).");
+
+ ("command", (RString "output", [StringList "arguments"]), 50, [],
+ [], (* XXX how to test? *)
+ "run a command from the guest filesystem",
+ "\
+This call runs a command from the guest filesystem. The
+filesystem must be mounted, and must contain a compatible
+operating system (ie. something Linux, with the same
+or compatible processor architecture).
+
+The single parameter is an argv-style list of arguments.
+The first element is the name of the program to run.
+Subsequent elements are parameters. The list must be
+non-empty (ie. must contain a program name).
+
+The C<$PATH> environment variable will contain at least
+C</usr/bin> and C</bin>. If you require a program from
+another location, you should provide the full path in the
+first parameter.
+
+Shared libraries and data files required by the program
+must be available on filesystems which are mounted in the
+correct places. It is the caller's responsibility to ensure
+all filesystems that are needed are mounted at the right
+locations.");
+
+ ("command_lines", (RStringList "lines", [StringList "arguments"]), 51, [],
+ [], (* XXX how to test? *)
+ "run a command, returning lines",
+ "\
+This is the same as C<guestfs_command>, but splits the
+result into a list of lines.");
+
]
let all_functions = non_daemon_functions @ daemon_functions
failwithf "%s param/ret %s should not contain '-' or '_'"
name n;
if n = "value" then
- failwithf "%s has a param/ret called 'value', which causes conflicts in the OCaml bindings, use something like 'val' or a more descriptive name" n
+ failwithf "%s has a param/ret called 'value', which causes conflicts in the OCaml bindings, use something like 'val' or a more descriptive name" n;
+ if n = "argv" || n = "args" then
+ failwithf "%s has a param/ret called 'argv' or 'args', which will cause some conflicts in the generated code" n
in
(match fst style with
| RBool _ ->
pr "This function returns a C truth value on success or -1 on error.\n\n"
| RConstString _ ->
- pr "This function returns a string or NULL on error.
+ pr "This function returns a string, or NULL on error.
The string is owned by the guest handle and must I<not> be freed.\n\n"
| RString _ ->
- pr "This function returns a string or NULL on error.
+ pr "This function returns a string, or NULL on error.
I<The caller must free the returned string after use>.\n\n"
| RStringList _ ->
pr "This function returns a NULL-terminated array of strings
pr "}\n";
pr "\n"
+(* Readline completion for guestfish. *)
+and generate_fish_completion () =
+ generate_header CStyle GPLv2;
+
+ let all_functions =
+ List.filter (
+ fun (_, _, _, flags, _, _, _) -> not (List.mem NotInFish flags)
+ ) all_functions in
+
+ pr "\
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef HAVE_LIBREADLINE
+#include <readline/readline.h>
+#endif
+
+#include \"fish.h\"
+
+#ifdef HAVE_LIBREADLINE
+
+static const char *commands[] = {
+";
+
+ (* Get the commands and sort them, including the aliases. *)
+ let commands =
+ List.map (
+ fun (name, _, _, flags, _, _, _) ->
+ let name2 = replace_char name '_' '-' in
+ let alias =
+ try find_map (function FishAlias n -> Some n | _ -> None) flags
+ with Not_found -> name in
+
+ if name <> alias then [name2; alias] else [name2]
+ ) all_functions in
+ let commands = List.flatten commands in
+ let commands = List.sort compare commands in
+
+ List.iter (pr " \"%s\",\n") commands;
+
+ pr " NULL
+};
+
+static char *
+generator (const char *text, int state)
+{
+ static int index, len;
+ const char *name;
+
+ if (!state) {
+ index = 0;
+ len = strlen (text);
+ }
+
+ while ((name = commands[index]) != NULL) {
+ index++;
+ if (strncasecmp (name, text, len) == 0)
+ return strdup (name);
+ }
+
+ return NULL;
+}
+
+#endif /* HAVE_LIBREADLINE */
+
+char **do_completion (const char *text, int start, int end)
+{
+ char **matches = NULL;
+
+#ifdef HAVE_LIBREADLINE
+ if (start == 0)
+ matches = rl_completion_matches (text, generator);
+#endif
+
+ return matches;
+}
+";
+
(* Generate the POD documentation for guestfish. *)
and generate_fish_actions_pod () =
let all_functions_sorted =
| OptString _
| Bool _
| Int _ -> ()
- | StringList n -> pr " free (%s);\n" n
+ | StringList n -> pr " free (%s);\n" n
) (snd style)
in
(* Code. *)
(match fst style with
| RErr ->
+ pr "PREINIT:\n";
+ pr " int r;\n";
pr " PPCODE:\n";
- pr " if (guestfs_%s " name;
+ pr " r = guestfs_%s " name;
generate_call_args ~handle:"g" style;
- pr " == -1) {\n";
+ pr ";\n";
do_cleanups ();
+ pr " if (r == -1)\n";
pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
- pr " }\n"
| RInt n
| RBool n ->
pr "PREINIT:\n";
pr " %s = guestfs_%s " n name;
generate_call_args ~handle:"g" style;
pr ";\n";
- pr " if (%s == -1) {\n" n;
do_cleanups ();
+ pr " if (%s == -1)\n" n;
pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
- pr " }\n";
pr " RETVAL = newSViv (%s);\n" n;
pr " OUTPUT:\n";
pr " RETVAL\n"
pr " %s = guestfs_%s " n name;
generate_call_args ~handle:"g" style;
pr ";\n";
- pr " if (%s == NULL) {\n" n;
do_cleanups ();
+ pr " if (%s == NULL)\n" n;
pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
- pr " }\n";
pr " RETVAL = newSVpv (%s, 0);\n" n;
pr " OUTPUT:\n";
pr " RETVAL\n"
pr " %s = guestfs_%s " n name;
generate_call_args ~handle:"g" style;
pr ";\n";
- pr " if (%s == NULL) {\n" n;
do_cleanups ();
+ pr " if (%s == NULL)\n" n;
pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
- pr " }\n";
pr " RETVAL = newSVpv (%s, 0);\n" n;
pr " free (%s);\n" n;
pr " OUTPUT:\n";
pr " %s = guestfs_%s " n name;
generate_call_args ~handle:"g" style;
pr ";\n";
- pr " if (%s == NULL) {\n" n;
do_cleanups ();
+ pr " if (%s == NULL)\n" n;
pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
- pr " }\n";
pr " for (n = 0; %s[n] != NULL; ++n) /**/;\n" n;
pr " EXTEND (SP, n);\n";
pr " for (i = 0; i < n; ++i) {\n";
pr " r = guestfs_%s " name;
generate_call_args ~handle:"g" style;
pr ";\n";
- pr " if (r == NULL) {\n";
do_cleanups ();
+ pr " if (r == NULL)\n";
pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
- pr " }\n";
pr " EXTEND (SP, 2);\n";
pr " PUSHs (sv_2mortal (newSViv (r->i)));\n";
pr " PUSHs (sv_2mortal (newSViv (r->b)));\n";
pr " guestfs_free_int_bool (r);\n";
| RPVList n ->
- generate_perl_lvm_code "pv" pv_cols name style n;
+ generate_perl_lvm_code "pv" pv_cols name style n do_cleanups;
| RVGList n ->
- generate_perl_lvm_code "vg" vg_cols name style n;
+ generate_perl_lvm_code "vg" vg_cols name style n do_cleanups;
| RLVList n ->
- generate_perl_lvm_code "lv" lv_cols name style n;
+ generate_perl_lvm_code "lv" lv_cols name style n do_cleanups;
);
- do_cleanups ();
-
pr "\n"
) all_functions
-and generate_perl_lvm_code typ cols name style n =
+and generate_perl_lvm_code typ cols name style n do_cleanups =
pr "PREINIT:\n";
pr " struct guestfs_lvm_%s_list *%s;\n" typ n;
pr " int i;\n";
pr " %s = guestfs_%s " n name;
generate_call_args ~handle:"g" style;
pr ";\n";
+ do_cleanups ();
pr " if (%s == NULL)\n" n;
pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
pr " EXTEND (SP, %s->len);\n" n;
generate_fish_cmds ();
close ();
+ let close = output_to "fish/completion.c" in
+ generate_fish_completion ();
+ close ();
+
let close = output_to "guestfs-structs.pod" in
generate_structs_pod ();
close ();
git.annexia.org / libguestfs.git / blobdiff