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This fixes commit 1efed122c07792f4c66a4083159cfacfb1893212.
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'ls' (with no argument) is not a valid command.
This fixes commit bad5c7d5a50e7f340d3a5daff59d7f3c18c0ab8f.
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It is slightly dangerous to use @PATTERNS@, since these might
be substituted by autoconf when they appear in Makefile.am files.
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section.
Ensure each man page contains consistent COPYRIGHT and AUTHOR
sections.
Remove the LICENSE section. We will add that back in podwrapper in a
later commit.
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This enables the libguestfs user network, and is the equivalent of the
'virt-rescue --network' option.
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You can now choose the default attach method in two ways:
(1) Set the LIBGUESTFS_ATTACH_METHOD environment variable.
(2) ./configure --with-default-attach-method=appliance|libvirt|...
Note that (1) overrides (2).
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By using the once_had_no_optargs flag, this change is backwards
compatible for callers (except Haskell, PHP and GObject as discussed
in earlier commit).
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(RHBZ#803533).
For a test case, see:
https://bugzilla.redhat.com/show_bug.cgi?id=803533
In guestfish, we use the gnulib closeout module which sets up an
atexit handler to detect if there were any errors on stdout when the
program exits. This is so we can fail correctly in out of disk space
cases like:
guestfish [...] > output
However the atexit handler just checks that there was any error on
stdout (using ferror). If a pipe command such as:
><fs> command_with_lots_of_output | head
ran at any time during the session, the error flag would be set
(because the underlying writes failed with EPIPE errors).
So the commit first adds a test for ferror (stdout) after each command
that we issue. This brings error handling closer to the point of
failure, and so is generally a good thing.
Secondly we reset the error flag after detecting and dealing with the
error, so that avoids the redundant 'guestfish: write error' message
produced by gnulib closeout.
Thirdly we add a --pipe-error flag which causes guestfish commands to
fail on pipe commands line the one above. The default is off for
backwards compatibility reasons.
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Fix typos spotted by http://github.com/lyda/misspell-check.
* configure.ac: As above.
* ocaml/examples/guestfs-ocaml.pod: Likewise.
* fish/guestfish.pod: Likewise.
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Update all copyright dates to 2012.
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Killing it is always a bad idea, because the qemu subprocess will be
left hanging around. The best thing is to send the exit command.
This also makes the change to virt-sysprep.
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This documents bug 592910.
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Defer this decision to a future version of libguestfs.
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This applies in all the commands which use the common C option parsing
code, ie:
* guestfish
* guestmount
* virt-cat
* virt-df
* virt-filesystems
* virt-inspector
* virt-ls
* virt-rescue
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This is now used consistently across all the documentation.
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This allows you to mount disks on (eg) /c and /e and have the
guestfish win:... path mechanism map drive letters to the
right places.
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This allows the default for --ro or --rw to be controlled for the
three tools guestfish, guestmount and virt-rescue.
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This lets you turn on ACLs and xattrs by doing:
-m /dev/sda1:/:acl,user_xattr
The extra parameter is passed through to mount_options:
libguestfs: trace: mount_options "acl,user_xattr" "/dev/sda1" "/"
Notes:
Labels: feature
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The other programs have the variable, but the flag is not enabled
either because it doesn't make sense or because the implications are
not well understood.
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The FHS advises large files not to be stored in the root
filesystem[1], and that /var/tmp is persistent across reboots[2]
(whereas /tmp is possibly not[3]).
Therefore we should store the large cached supermin appliance in
/var/tmp instead of /tmp. /tmp is still used for all other temporary
files and directories.
In either case you can override this by setting $TMPDIR.
[1] http://www.pathname.com/fhs/pub/fhs-2.3.html#THEROOTFILESYSTEM
[2] http://www.pathname.com/fhs/pub/fhs-2.3.html#VARTMPTEMPORARYFILESPRESERVEDBETWEE
[3] http://www.pathname.com/fhs/pub/fhs-2.3.html#TMPTEMPORARYFILES
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The new guestfish construct "<! cmd" executes the shell command
"cmd", and then anything printed to stdout by "cmd" is parsed
and executed as a guestfish command.
This allows some very hairy shell scripting with guestfish.
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Relatively trivial wrappers around the equivalent guestfish
commands. Change also includes new man pages.
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This tool replaces virt-list-filesystems and virt-list-partitions with
a new tool written in C with a more uniform command line structure
and output.
This existing Perl tools are deprecated but remain indefinitely.
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This adds the guestfish --rw option, intended in future
to be required for writing to disk images.
At the moment this does not change the default and so does
nothing. This patch is intended for backporting to the
stable branches so that we can start to introduce scripts
which use 'guestfish --rw'.
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(Thanks Eric Blake).
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eval "$(guestfish --listen)"
instead of various other forms.
(Thanks Eric Blake).
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For libvirt guests, the disk format is copied from libvirt (if
libvirt knows it).
For command line disk images, you can use --format to override
format auto-detection.
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This large commit changes the generator so that optional arguments
can be supported for functions.
The model for arguments (known as the "style") is changed from
(ret, args) to (ret, args, optargs) where optargs is a more limited
list of arguments.
One function has been added which takes optional arguments, it is
"add-drive-opts", modelled as:
(RErr, [String "filename"], #required
[Bool "readonly"; String "format"; String "iface"]) #optional
Note that this function is processed in the library (does not go over
the RPC protocol to the daemon). This has allowed us to simplify
the current implementation by omitting changes related to RPC or the
daemon, although we plan to add these at some point in the future.
From C this function can be called in 3 different ways as in these
examples:
guestfs_add_drive_opts (g, filename,
GUESTFS_ADD_DRIVE_OPTS_READONLY, 1,
GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
-1);
(the argument(s) between 'filename' and '-1' are the optional ones).
guestfs_add_drive_opts_va (g, filename, args);
where 'args' is a va_list. This works like the first version.
struct guestfs_add_drive_opts_argv optargs = {
.bitmask = GUESTFS_ADD_DRIVE_OPTS_READONLY_BITMASK,
.readonly = 1,
}
guestfs_add_drive_opts_argv (g, filename, &optargs);
This last form lets you construct lists of optional arguments, and
is used by guestfish and the language bindings.
In guestfish optional arguments are used like this:
add-drive-opts filename readonly:true
In OCaml these are mapped naturally to OCaml optional arguments, eg:
g#add_drive_opts ~readonly:true filename;
In Perl these are mapped to extra arguments, eg:
$g->add_drive_opts ($filename, readonly => 1);
In Python these are mapped to optional arguments, eg:
g.add_drive_opts ("file", readonly = 1, format = "qcow2")
In Ruby these are mapped to a final hash argument, eg:
g.add_drive_opts("file", {})
g.add_drive_opts("file", :readonly => 1)
g.add_drive_opts("file", :readonly => 1, :iface => "virtio")
In PHP these are mapped to extra parameters. This is not quite
accurate since you cannot omit arbitrary optional parameters, but
there's not much than can be done within the limitations of PHP
as a language.
Unimplemented in: Haskell, C#, Java.
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