Change message log to be per server rather than per client and include
every command that is run.

Add formats for after hook command arguments.

Fix a couple of memory leaks, one when creating a new pane and one when
adding formats onto the queue item.

Provide an accessor for the running queue item and use it to not let
hooks recurse.

Make client -c and -t handling common in cmd-queue.c and try to be
clearer about whether the client is the target client (must have a
session) or not.

When adding a list of commands to the queue, instead of automatically
creating a new state for each group of commands, require the caller to
create one and use it for all the commands in the list. Th

When adding a list of commands to the queue, instead of automatically
creating a new state for each group of commands, require the caller to
create one and use it for all the commands in the list. This means the
current target works even with list with multiple groups (which can
happen if they are defined with newlines).

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Move cmdq_state into cmd-queue.c.

Rename cmdq_shared to cmdq_state which will better reflect what it is
(going to be) used for.

Store a key event not a mouse event in the shared data.

Move the NOHOOKS flag into the shared flags.

Also move cmdq_item and cmdq_list into cmd-queue.c (this is to make its
use more clearly defined and preparation for some future work).

Make struct cmd local to cmd.c and move it out of tmux.h.

Now that copy mode copies the pane content rather than keeping a
reference to it, it isn't necessary that the pane in copy mode is the
same as the one copying from. Add a -s flag to copy-mode to spec

Now that copy mode copies the pane content rather than keeping a
reference to it, it isn't necessary that the pane in copy mode is the
same as the one copying from. Add a -s flag to copy-mode to specify a
different pane for the source content. This means it is possible to view
two places in a pane's history at the same time in different panes, or
copy from a pane's history into an editor or shell in the same pane.

From Anindya Mukherjee.

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Stop logging the entire command queue every time we add something,
spotted by tb & sthen.

Send errors to stdout in control mode so they don't get reordered with
other output, reported by George Nachman in GitHub issue 2048.

When adding a list with multiple commands to the queue, the next item to
insert after needs to be the last one added, not the first. Reported by
Jason Kim in GitHub issue 2023.

Use the message that has already been built rather than the va_list.

Rewrite the code for reading and writing files. Now, if the client is
not attached, the server process asks it to open the file, similar to
how works for stdin, stdout, stderr. This makes special fil

Rewrite the code for reading and writing files. Now, if the client is
not attached, the server process asks it to open the file, similar to
how works for stdin, stdout, stderr. This makes special files like
/dev/fd/X work (used by some shells). stdin, stdout and stderr and
control mode are now just special cases of the same mechanism. This will
also make it easier to use for other commands that read files such as
source-file.

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Set up format tree for %if, GitHub issue 1896.

Add a cmdq_continue function rather than twiddling the flag directly.

Fix warnings, from Ben Boeckel.

The line number needs to be updated only after the \n is processed by
the parser, so store a flag and update it next time around. Also each
new line needs its own shared data.

Client name can actually be NULL, so use address in that case.

Use client name when logging command queue.

Don't remove group items for group 0 (no group).