It's strange that the command fails but without any error if one
specifies as not a number.

Without this patch, invoking 'virsh >file 2>&1' results in
error messages appearing before normal output, even if they
occurred later in time than the normal output (since stderr
is unbuffered, but stdout waits until a full buffer).

* tools/virsh.c (print_job_progress, vshError): Flush between
stream transitions.
* tests/undefine: Test it.

Repetitive patterns should be factored.  The sign of a good
factorization is a change that kills 5x more lines than it adds :)

* src/conf/domain_conf.c (virDomainDeviceDefParse)
(virDomainSnapshotDefParseString): Use new convenience macros.
* src/conf/storage_conf.c (virStoragePoolDefParseSourceString):
Likewise.
* src/cpu/cpu.c (cpuCompareXML, cpuBaselineXML): Likewise.
* src/esx/esx_vi.c (esxVI_Context_Execute): Likewise.
* src/qemu/qemu_migration.c (qemuMigrationCookieXMLParseStr):
Likewise.
* src/security/virt-aa-helper.c (caps_mockup): Likewise.
* src/test/test_driver.c (testOpenFromFile): Likewise.
* tests/cputest.c (cpuTestLoadXML, cpuTestLoadMultiXML):
Likewise.
* tools/virsh.c (cmdFreecell, makeCloneXML, cmdVNCDisplay)
(cmdTTYConsole, cmdDetachInterface, cmdDetachDisk)
(cmdSnapshotCreate, cmdSnapshotCreateAs, cmdSnapshotCurrent)
(cmdSnapshotList, cmdSnapshotParent): Likewise.

* cfg.mk (useless_free_options): Add xmlFreeDoc, xmlBufferFree.
* src/esx/esx_vi.c (ESX_VI__TEMPLATE__FREE): Fix offenders.
* tools/virsh.c (cmdFreecell, cmdVNCDisplay, cmdTTYConsole)
(cmdDetachInterface, cmdDetachDisk, cmdSnapshotCreate)
(cmdSnapshotCreateAs, cmdSnapshotList, cmdSnapshotParent):
Likewise.

This patch adds the missing documentation about the scheduler parameter
"vcpu_period" and "vcpu_quota".

Call me lazy, but:

virsh qemu-monitor-command dom --hmp info status

is nicer than:

virsh qemu-monitor-command dom --hmp 'info status'

* tools/virsh.c (cmdQemuMonitorCommand): Allow multiple arguments,
for convenience.

Fixes confusing docs introduced in commit 98369d31.

* tools/virsh.c (cmdSnapshotParent): Operates on named snapshot,
not current.

After running 'virsh console' in interactive mode, there was a
missing call to virStreamAbort, which meant the server kept the
stream resources open

* tools/console.c: Abort stream when exiting

Two copy-and-paste bugs in a row.  :(

* tools/virsh.c (cmdUndefine): Also avoid dead store.

Bug introduced in commit 9a0ec363.

* tools/virsh.c (cmdUndefine): Add missing line.

The public API documents that undefine may be used to transition a
running persistent domain into a transient one.  Many drivers still
do not support this usage, but virsh shouldn't be getting in the
way of those that do support it.

This also drops a redundant conditional; vshCommandOptString
guaranteed that name was non-NULL.

* tools/virsh.c (cmdUndefine): Allow undefine on active domains;
the drivers may still reject it, but it is a valid API usage.
* tests/undefine (error): Fix the test to match.

Fix of output of detailed volume list. BZ #727088

Down the road, I want to add virDomainSnapshotGetParent, and use
the new API rather than xml scraping; but this virsh command can
be implemented even without the new API.

* tools/virsh.c (cmdSnapshotParent): New command.
* tools/virsh.pod (snapshot-parent): Document it.

Sometimes, full XML is too much; since most snapshot commands
operate on a snapshot name, there should be an easy way to get
at the current snapshot's name.  For example:

virsh snapshot-revert dom `virsh snapshot-current dom --name`

* tools/virsh.c (cmdSnapshotCurrent): Add an option.
* tools/virsh.pod (snapshot-current): Document it.

Found this working on the next patch to use xpath to parse
arbitrary names back out.

* tools/virsh.c (cmdSnapshotCreateAs): Escape user input.

* tools/virsh.c: avoid memory leak in cmdNetworkInfo.

* how to reproduce?
  % valgrind -v --leak-check=yes virsh net-info default

  https://bugzilla.redhat.com/show_bug.cgi?id=722806Signed-off-by: NAlex Jia <ajia@redhat.com>

* tools/virsh.pod: change 'live' to 'abort' based on actual option

This commands don't have a --pool option, so don't tell
vshCommandOptVolBy that there could be one. This made
vshCommandOptString for pooloptname fail and an "missing option"
error was reported.

Make pooloptname optional for vshCommandOptVolBy.

Gettext annoyingly modifies CPPFLAGS in-place, putting
-I/usr/local/include into the search patch if libintl headers
must be used from that location.  But since we must support
automake 1.9.6 which lacks AM_CPPFLAGS, and since CPPFLAGS is used
prior to INCLUDES, this means that the build picks up the _old_
installed libvirt.h in priority to the in-tree version, leading
to all sorts of weird build failures on FreeBSD.

Fix this by teaching configure to undo gettext's actions, but
to keep any changes required by gettext at the end of INCLUDES
after all in-tree locations are used first.  Also requires
adding a wrapper Makefile.am and making gnulib-tool create
just gnulib.mk files during the bootstrap process.
Signed-off-by: NEric Blake <eblake@redhat.com>

I went with the shorter license notice used by src/libvirt.c,
rather than spelling out the full LGPLv2+ clause into each of
these files.

* configure.ac: Declare copyright.
* all Makefile.am: Likewise.

* tools/virsh.c: fix missing zero value judgement in cmdBlkiotune and correct
  vshError information.

  when weight is equal to 0, the cmdBlkiotune will not raise any error information
  when judge weight value first time, and execute else branch to judge weight
  value again, strncpy(temp->field, VIR_DOMAIN_BLKIO_WEIGHT, sizeof(temp->field))
  will be not executed for ever. However, if and only if param->field is equal
  to VIR_DOMAIN_BLKIO_WEIGHT, underlying qemuDomainSetBlkioParameters function
  will check whether weight value is in range [100, 1000].

* how to reproduce?

  % virsh blkiotune ${guestname} --weight 0
Signed-off-by: NAlex Jia <ajia@redhat.com>

* tools/virsh.c: avoid memory leak in cmdVolPath.
* src/libvirt.c: Add doc for virStorageVolGetPath to tell one
  must free() the returned path after use.

* how to reproduce?

% dd if=/dev/zero of=/var/lib/libvirt/images/foo.img count=1 bs=10M
% virsh pool-refresh default
% valgrind -v --leak-check=full virsh vol-path --vol \
/var/lib/libvirt/images/foo.img

* actual results:

Detected in valgrind run:

==16436== 32 bytes in 1 blocks are definitely lost in loss record 7 of 22
==16436==    at 0x4A05FDE: malloc (vg_replace_malloc.c:236)
==16436==    by 0x386A314B3D: xdr_string (in /lib64/libc-2.12.so)
==16436==    by 0x3DF8CD770D: xdr_remote_nonnull_string (remote_protocol.c:3
==16436==    by 0x3DF8CD7EC8: xdr_remote_storage_vol_get_path_ret
% virsh pool-refresh default
% valgrind -v --leak-check=full virsh vol-path --vol \
/var/lib/libvirt/images/foo.img
Signed-off-by: NAlex Jia <ajia@redhat.com>

* tools/virsh.c (doMigrate): Add --change-protection flag.
* tools/virsh.pod (migrate): Document it.

Commit b31abc6f introduce commands blockpull and blockjob, but
forgot to add the docs meanwhile.

* tools/virsh.c: format strings display for virsh nodecpustats --percent.

* how to reproduce?

% virsh nodecpustats --percent
usage:            2.0%
    user  :       1.0%
    system:       1.0%
idle  :          98.0%
iowait:           0.0%

* after format strings

% virsh nodecpustats --percent
usage:            2.0%
user:             1.0%
system:           1.0%
idle:            98.0%
iowait:           0.0%
Signed-off-by: NAlex Jia <ajia@redhat.com>

The description of the list command seemed to suggest that it could
take a set of domains as an argument, which is not correct in the
current HEAD.  If virsh list is intended to take a list of domains,
then this patch should be NAK'd and a bug opened against virsh list.

Reported by hachi on #virt

v2:

Change language to include transient domains

Osier pointed out that transient domains are not defined, so what I
had originally proposed wasn't quite correct.

* tools/virsh.pod: Fix missing > tag in docs

Now that gnulib gives us ffs, we might as well use it.

* tools/virsh.c (vshCmddefGetData): Use ffs rather than
count_one_bits.

Rename the existing --current flag to the new name --active,
while adding a new flag --current to expose the new
VIR_DOMAIN_AFFECT_CURRENT flag of virDomainGetVcpusFlags.

For backwards compability, the output does not change (even
though the label "current" no longer matches the spelling of
the option that would trigger that number in isolation), and
we accept "--current --live" as an undocumented synonym for
"--active --live" to avoid breaking any existing clients.

* tools/virsh.c (cmdVcpucount): Add --active flag, and rearrange
existing flag handling to expose VIR_DOMAIN_AFFECT_CURRENT support.
* tools/virsh.pod (vcpucount): Document this.

Define two new virsh commands:
 * blockpull: Initiate a blockPull for the given disk
 * blockjob: Retrieve progress info, modify speed, and cancel active block jobs

Share print_job_progress() with the migration code.

* tools/virsh.c: implement the new commands

Now you can edit a saved state file even if you forgot to grab
a dumpxml file prior to saving a domain.  Plus, in-place editing
feels so much nicer.

* tools/virsh.c (cmdSaveImageDumpxml, cmdSaveImageDefine)
(cmdSaveImageEdit): New commands.
* tools/virsh.pod (save-image-dumpxml, save-image-define)
(save-image-edit): Document them.

libvirt-guests is a perfect use case for bypassing the file system
cache - lots of filesystem traffic done at system shutdown, where
caching is pointless, and startup, where reading large files only
once just gets in the way.  Make this a configurable option in the
init script, but defaulting to existing behavior.

* tools/libvirt-guests.sysconf (BYPASS_CACHE): New variable.
* tools/libvirt-guests.init.sh (start, suspend_guest): Use it.

Also, migrate was missing documentation for the --xml option
added in commit ec5301cb.

* tools/virsh.c (cmdSave, cmdRestore): Add xml argument.
* tools/virsh.pod (save, restore, migrate): Document it.

Wire up the new flag to several virsh commands.  Also, the
'dump' command had undocumented flags.

* tools/virsh.c (cmdSave, cmdManagedSave, cmdDump, cmdStart)
(cmdRestore): Add new flag.
* tools/virsh.pod (save, managedsave, dump, start, restore):
Document flags.

In preparation for a future patch adding new virFile APIs.

* src/util/files.h, src/util/files.c: Move...
* src/util/virfile.h, src/util/virfile.c: ...here, and rename
functions to virFile prefix.  Macro names are intentionally
left alone.
* *.c: All '#include "files.h"' uses changed.
* src/Makefile.am (UTIL_SOURCES): Reflect rename.
* cfg.mk (exclude_file_name_regexp--sc_prohibit_close): Likewise.
* src/libvirt_private.syms: Likewise.
* docs/hacking.html.in: Likewise.
* HACKING: Regenerate.

Also support string names for the linux keycode(auto detect)
* tools/virsh.c: add new command "send-key"
* tools/virsh.pod: documents the new command

If the domain has managed save image, and --managed-save is
not specified, then it fails with an error telling the user
that a managed save image still exists.

If the domain has managed save image, and --managed-save is
specified, it invokes virDomainUndefineFlags. If
virDomainUndefineFlags fails, then it tries to remove the managed
save image using virDomainManagedSaveRemove first, with
invoking virDomainUndefine following. (For compatibility between
new virsh with this patch and older libvirt without this patch).

Similarly if the domain has no managed save image. See the codes for
detail.

NOTE: Have not removing the codes checking if the domain is running
in function "cmdUndefine", it will go along with qemu driver's fix
(allow to undefine a running domain).

This reverts commit 40143fb6.

The patch prevents future compatibility if migration ever learns
how to do tunnelled without p2p.

* tools/virsh.c: new column "Managed save" for "cmdDominfo".
* tools/virsh.pod: Update document of "managedsave" to tell one can
  use "dominfo" to query whether a domain has any managed save image.