Implement nvim_command_output with `execute({cmd},"silent")`.
Behavior changes:
- does not provoke any hit-enter prompt
- no longer prepends a newline char
- does not capture some noise (like the "[New File]" message, see the
change to tabnewentered_spec.lua)
Technically ("bug-for-bug") this a breaking change. But the previous
behavior of nvim_command_output meant that it probably wasn't used for
anything outside of tests.
Also remove the undocumented `v:command_output` variable which was
a hack introduced only for the purposes of nvim_command_output.
closes#7726
Travis disabled IPv6:
[ RUN ] serverstart(), serverstop() parses endpoints correctly: FAIL
...build/neovim/neovim/test/functional/eval/server_spec.lua:83: Expected objects to be the same.
Passed in:
(table) {
[1] = '127.0.0.1:12345' }
Expected:
(table) {
[1] = '127.0.0.1:12345'
*[2] = '::1:12345' }
Change all tests to ensure a server was actually started before
expecting it to be returned from serverlist().
With the old behavior, if a GUI makes a blocking request that requires user
interaction (like nvim_input()), it would not get any screen updates.
The client, not nvim, should decide how to handle notifications during a
pending request. If an rplugin wants to avoid async calls while a sync call is
busy, it likely wants to avoid processing async calls while another async call
also is handled as well.
This may break the expectation of some existing rplugins. For compatibility,
remote/define.vim reimplements the old behavior. Clients can opt-out by
specifying `sync=urgent`.
- Legacy hosts should be updated to use `sync=urgent`. They could add a flag
indicating which async methods are always safe to call and which must wait
until the main loop returns.
- New hosts can expose the full asyncness, they don't need to offer both
behaviors.
ref #6532
ref #1398d83868fe90
...in order to retrieve highlights.
Added test/functional/api/highlight_spec.lua
HL_NORMAL is not really a good name, since it's more like an empty attribute than the normal's one.
If one pays attention, syn_cterm_attr2entry is never called with attr=0 because it's always special cased before.
I suggest in subsequent PRs we remove the ATTR_OFF and just insert an EMPTY ATTR/RESET_ATTR/UNINITIALIZED for id 0.
The "mapping" tests added in 541dde36e3 were flawed:
- Unlike op-pending mode, RPCs are _blocked_ during map-pending. So
a synchronous RPC like nvim_get_current_buf() waits until
'timeoutlen', then the mapping is canceled.
- helpers.expect() also performs a blocking RPC, so again that must not
intervene the two nvim_input() calls.
closes#6166
normal_finish_command() and normal_prepare() assume that any pending
operator needs to be finished after any subsequent key.
Set `finish_op = false` in nv_event() to indicate that the pending
operator shouldn't be finished in normal_execute().
This is how nv_visual() indicates that 'v' or 'V' in operator-pending
mode should not finish the current pending operator.
fixes#5398fixes#6166 (partially; mappings are still interrupted)
Asynchronous API functions are served immediately, which means pending
input could change the state of Nvim shortly after an async API function
result is returned.
nvim_get_mode() is different:
- If RPCs are known to be blocked, it responds immediately (without
flushing the input/event queue)
- else it is handled just-in-time before waiting for input, after
pending input was processed. This makes the result more reliable
(but not perfect).
Internally this is handled as a special case, but _semantically_ nothing
has changed: API users never know when input flushes, so this internal
special-case doesn't violate that. As far as API users are concerned,
nvim_get_mode() is just another asynchronous API function.
In all cases nvim_get_mode() never blocks for more than the time it
takes to flush the input/event queue (~µs).
Note: This doesn't address #6166; nvim_get_mode() will provoke #6166 if
e.g. `d` is operator-pending.
Closes#6159
Also re-word some error messages:
- "Key does not exist: %s"
- "Invalid channel: %<PRIu64>"
- "Request array size must be 4 (request) or 3 (notification)"
- "String cannot contain newlines"
References #6150
Hope this will make people using feed_command less likely: this hides bugs.
Already found at least two:
1. msgpackparse() will show internal error: hash_add() in case of duplicate
keys, though it will still work correctly. Currently silenced.
2. ttimeoutlen was spelled incorrectly, resulting in option not being set when
expected. Test was still functioning somehow though. Currently fixed.
