Add the ubuntu_20_10.yml and ubuntu_20_10_aarch64.yml workflow files to
build Tarantool packages for x86_64 and aarch64 systems.

Actually, it was already added in 980d7676 (2.9.0-100-g980d7676b) in the
scope of #5824 and removed then in 19a161b5 (2.10.0-beta2-4-g19a161b5f)
and dc19be40 (2.10.0-beta2-5-gdc19be406).

But, eventually, it was decided to add this workflow again to release
Tarantool packages for Ubuntu Groovy as well.

Follows-up tarantool/tarantool#5824

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(cherry picked from commit 47fbd24a)

Add the ubuntu_21_04_aarch64.yml and ubuntu_21_10_aarch64.yml workflow
files to build Tarantool packages for the aarch64 system.

Follows-up tarantool/tarantool#5825
Follows-up tarantool/tarantool#6566

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(cherry picked from commit 74f67c7b)

Add the ubuntu_22_04.yml and ubuntu_22_04_aarch64.yml workflow files to
build Tarantool packages for x86_64 and aarch64 systems.

Closes tarantool/tarantool-qa#237

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Co-authored-by: Yaroslav Lobankov <y.lobankov@tarantool.org>
(cherry picked from commit abd9bbf0)

iproto_write_error() may reset diag (for example, if the client closes
the socket), thus invalidating the error we are going to log and leading
to a use after free bug. We must log the error before trying to send it
to the client.

The bug was introduced by commit 9b4ab9fe ("iproto: use iostream
abstraction"), which switched iproto_write_error() from plain write() to
the iostream_write(), which may set diag.

Closes #6890

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NO_CHANGELOG=unreleased

(cherry picked from commit 73117059)

The unauthenticated git protocol on port 9418 is no longer supported.

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(cherry picked from commit 12cf9980)

Consider the following case a safe `select` call (i.e., do not issue a
warning):
* offset + limit <= 1000 (default value of offset is 0, default value of
limit is 4294967295);

Add new dangerous `select` call case:
* 'ALL', 'GE', 'GT', 'LE', 'LT' iterator even with key present.

Because of the additional logic, it was decided to refactor
`check_select_args` and call it after resolving options in
`check_select_opts`.

Closes #7129

@TarantoolBot document
Title: improve check for dangerous `select` calls

Calls with `offset + limit <= 100`
are now considered safe (i.e., a warning is not issued), e.g.:
box.space.s:select(nil, {offset = 1000})
box.space.s:select(nil, {limit = 1000})
box.space.s:select(nil, {offset = 500, limit = 500})

'ALL', 'GE', 'GT', 'LE', 'LT' iterators are now considered dangerous by
default even with key present, e.g.:
box.space.s:select({0})
box.space.s:select({0}, {iterator = 'GE'})

But not that these calls are still safe:
box.space.s:select({0}, {limit = 1000})
box.space.s:select({0}, {limit = 1000, iterator = 'GE'})
box.space.s:select({0}, {iterator = 'EQ'})

(cherry picked from commit 29654ffe)

Constructor date.new() and modifier date:set() should always produce same
result for all attributes combinations. Fixed the problem for
`timestamp` with `tzoffset`.

Fixes #6793

@TarantoolBot document
Title: datetime :set{} with tzoffset

Constructor `date.new()` and modifier `date:set()` should always produce
same result for all attributes combinations. Fixed the problem for
`timestamp` with `tzoffset`.

```
tarantool> date.new{tzoffset = '+0800', timestamp = 1630359071}
---
- 2021-08-30T21:31:11+0800
...

tarantool> date.new():set{tzoffset = '+0800', timestamp = 1630359071}
---
- 2021-08-30T21:31:11+0800
...
```

(cherry picked from commit d56840d7)

This patch introduces a new syntax that allows to create MAP values in
an SQL query.

Part of #4763

@TarantoolBot document
Title: Syntax for MAP in SQL

The syntax for creating document values is now available in SQL. You can
use `{`, `:` and `}` to create a MAP value. Only INTEGER, STRING, and
UUID values can be keys in a MAP value. If there are two or more values
for the same key, the last one will be used for that key.

Examples:
```
tarantool> box.execute("SELECT {1 : 'a', 'asd' : 1.5, uuid() : true};")
---
- metadata:
  - name: COLUMN_1
    type: map
  rows:
  - [{1: 'a', 91ca4dbb-c6d4-4468-b4a4-ab1e409dd87e: true, 'asd': 1.5}]
...
```

```
tarantool> box.execute("SELECT {'h' : ['abc', 321], 7 : {'b' : 1.5}};")
---
- metadata:
  - name: COLUMN_1
    type: map
  rows:
  - [{7: {'b': 1.5}, 'h': ['abc', 321]}]
...
```

(cherry picked from commit 7175f1c8)

After this patch, variable names will have to follow the rules defined
for identifiers in SQL. Essentially, this means that a digit can no
longer be used as the first character of a bind variable name.

Part of #4763

NO_DOC=Will be added later.
NO_CHANGELOG=Will be added later.

(cherry picked from commit 899fbaeb)

The `${{ github.ref_name }}` expression is always evaluated to 'master'
because the workflow is running on the 'master' branch. But it is wrong
in the case of the '2.10' branch. Now it's fixed.

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(cherry picked from commit b08e23f4)

The '2.8' branch is no longer supported. So let's switch to '2.10'.

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(cherry picked from commit b212ceeb)

The perf_sysbench.yml workflow has the 'workflow_dispatch' trigger
that is often used to test some workflow changes. To not litter in
the InfluxDB prod bucket, MyTeam chat and mailing list, the special
option is added (Debug mode). When checking this option the InfluxDB
test bucket, MyTeam chat, and mailing list will be used.

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(cherry picked from commit e77ecdd4)

Since analyzing the performance test results via the workflow artifacts
is quite inconvenient (we need to download the artifact, unpack it, look
through results), we need a more human approach to see the test report.
Moreover, it would be cool to see the performance difference between the
commits.

So this patch adds reporting the performance test results to MyTeam chat
and mailing list. Furthermore, the comparison of test results is added
to the report. Seeing the test report in the chat or mail is very simple
and convenient, plus forever results history as a bonus.

The test report looks something like this:

    # Curr:
    #   branch:  add-feature-y
    #   build:   1.2.3-42-g6c71c3901
    #   summary: Add feature Y
    #   machine: x86_64
    #   distrib: ce
    #   gc64:    false
    # Prev:
    #   branch:  add-feature-x
    #   build:   1.2.3-41-g5271240ea
    #   summary: Add feature X
    #   machine: x86_64
    #   distrib: ce
    #   gc64:    false
    +----------------------+----------+----------+----------+
    |Sysbench              | Curr(rps)| Prev(rps)|     Ratio|
    +----------------------+----------+----------+----------+
    |oltp_delete           | 11408.000| 11532.000|     0.989|
    |oltp_insert           | 31455.000| 31322.000|     1.004|
    |oltp_point_select     | 65031.000| 66486.000|     0.978|
    |oltp_read_only        |  1732.000|  1735.000|     0.998|
    |oltp_read_write       |  1211.000|  1196.000|     1.013|
    |oltp_update_index     | 15580.000| 15570.000|     1.001|
    |oltp_update_non_index | 16129.000| 16093.000|     1.002|
    |oltp_write_only       |  4482.000|  4434.000|     1.011|
    |select_random_points  | 18525.000| 18517.000|     1.000|
    |select_random_ranges  |  4364.000|  4331.000|     1.008|
    +----------------------+----------+----------+----------+
    |gmean                 |  9223.593|  9220.182|     1.000|
    +----------------------+----------+----------+----------+

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(cherry picked from commit e2803cb1)

Since recently we partially support timezone names (i.e. as
abbreviations) so we may modify tz attribute support for
datetime constructors or :set() operations.

Closes #7076
Relates to #7007

@TarantoolBot document
Title: datetime tz attribute

Now `tz` attribute is properly handled in datetime value
constructors or `:set{}` method modifiers.

```
tarantool> T = date.new{year = 1980, tz = 'MSK'}
---
...

tarantool> T.tzoffset
---
- 180
...

tarantool> T.tz
---
- MSK
...
tarantool> T = date.new{year = 1980, tzoffset = 180}
---
...

tarantool> T.tzindex
---
- 0
...

tarantool> T.tz
---
-
...

tarantool> T.tzoffset
---
- 180
...

tarantool> T:set{tz = 'MSK'}
---
...

tarantool> T.tz
---
- MSK
...

```

(cherry picked from commit 7036b55a)

It looks like we have some files in the source tree that are not used
anymore. So there is no sense to keep them.
Files to be deleted: .appveyor.yml, Jenkinsfile, snapcraft.yaml.

NO_DOC=files removal
NO_TEST=files removal
NO_CHANGELOG=files removal

(cherry picked from commit eaf96984)

It doesn't work, because fio.rmtree doesn't accept wildcards.
Let's delete the whole server working tree on cleanup.

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(cherry picked from commit 00d6dfcd)

Similar to RLIST_HEAD_INITIALIZER and RLIST_HEAD. Needed to initialize
a global fiber_cond variable without calling fiber_cond_create.

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(cherry picked from commit 0016e80a)

 - Add func_id_by_name to box.internal. It will be used in EE.
 - Don't call box.internal.space.upgrade from box.schema.space.upgrade -
   we will redefine box.schema.space.upgrade in EE instead.

Follow-up commit 38b25832 ("box: add space upgrade stubs").

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(cherry picked from commit 44fadfc4)

This change contains the following improvements:

1. Prettify view in the job list.

   Before:
     - centos_7 / centos_7 (GC64=OFF)
     - centos_7 / centos_7 (GC64=ON)

   After:
     - centos_7 / centos_7
     - centos_7 / centos_7 (gc64)

2. Change possible values for the ${GC64} env variable to
   `true/false` instead of `ON/OFF` which is more traditional.

3. Use `-DLUAJIT_ENABLE_GC64=ON` flag in the `debian/rules` and
   `rpm/tarantool.spec` files directly instead of providing it
   in the workflow files.

Follows-up tarantool/tarantool-qa#159
Follows-up tarantool/tarantool-qa#161

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(cherry picked from commit 63bedc76)

Sometimes we would like to run only integration testing and not touch
other tests. Now it can be done by setting the 'integration-ci' label
on a pull request.

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(cherry picked from commit 2d97e4c8)

main.cc includes some headers from Tarantool Enterpise (to be more precise -
flightrec.h). To build it we should include proper extra directories.

NO_DOC=<Build fix>
NO_CHANGELOG=<Build fix>
NO_TEST=<Build fix>

(cherry picked from commit 3a0bb34d)

ffi.typeof() returns cdata, which in turn can't be concatenated with string
without explicit call of `tostring`. Moreover, passing data of native Lua
type would also generate wrong error. So let's simply raise general error
without mentioning passed type.

NO_DOC=<Internal fix>
NO_CHANGELOG=<Internal fix>

(cherry picked from commit f715e36a)

Previously we decided to pass `msg->p_inbuf->rpos` to flight recorder in
order to dump request. However, this is wrong way to do it since `rpos`
is moved only request has been processed, i.e. at the same moment several
requests may have the same `rpos` value. To fix this let's save the start
of unparsed request to `iproto_msg`. There's one detail that should be
clarified to understand that in this case we'll always get valid
pointer to ibuf. Imagine following state of ibuf:
```
+_____________________
|   |  |          |
+---------------------
    ^  ^          ^
  RPOS R2       WPOS
   R1
```
R1 is the first request in the buffer (i.e. rpos points to it);
R2 is the second. One can argue that if R2 is processed faster than R1
than during the dump of R1 its `reqstart` may point to the garbage.
However, dump of request takes place at the bery beginning of request
execution in TX thread. As far as messages are started to be processed
exactly in the same way as they were received, then R1 will be always
dumped before R2 and its further processing.

Follow-up 247515e9

NO_DOC=<No user visible changes>
NO_TEST=<No functional changes>
NO_CHANGELOG=<No functional changes>

(cherry picked from commit da1892a9)

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(cherry picked from commit e73ca8a5)

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(cherry picked from commit 0d27174d)

It looks like the simplest solution to deliver gc64 tarantool builds
is to have a separate repo for it. So this patch removes old stuff
related to the 'tarantool-gc64' package and adds the new logic to
store gc64 packages in a separate repo.

Closes: tarantool/tarantool-qa#161

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Co-authored-by: Yaroslav Lobankov <y.lobankov@tarantool.org>

(cherry picked from commit 16f47bdf)

space_upgrade_check_alter() must be called after the new space
definition is updated.

Follow-up commit 38b25832 ("box: add space upgrade stubs").

NO_DOC=internal
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(cherry picked from commit 34da4ce9)

Box read operations (select, min, max, random, pairs) may call a Lua
function via Lua C API if space upgrade (EE feature) is in progress.
This is forbidden if the original function was called via FFI:

https://github.com/tarantool/luajit/commit/4f4fd9ebeb10d53c8e67f45170938f052818e64e

Let's add helper functions to disable FFI for box read operations.
We will use them in EE code.

NO_DOC=internal
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NO_CHANGELOG=internal

(cherry picked from commit 7f2c7609)

In Lua C code 'struct iterator&' and 'struct iterator*' are handled in
exactly the same way. However, if we create an iterator object in Lua by
calling box_index_iterator via FFI, and pass the object to Lua C, it
will have 'struct iterator*' type, not 'struct iterator&'. In the next
patch we need Lua C functions to work with such objects so let's replace
'struct iterator&' with 'struct iterator*' in C code.

NO_DOC=refactoring
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NO_CHANGELOG=refactoring

(cherry picked from commit 6aa6a3d6)

It will be used to stall background space upgrade in tests.

While we are at it, move ERRINJ_TX_DELAY_PRIO_ENDPOINT to restore
the sorted order of the error injection list.

Follow-up commit 38b25832 ("box: add space upgrade stubs").

NO_DOC=internal
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NO_CHANGELOG=internal

(cherry picked from commit d772aef9)

We need the new format to apply the upgrade function to a tuple.

Follow-up commit 38b25832 ("box: add space upgrade stubs").

NO_DOC=internal
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NO_CHANGELOG=internal

(cherry picked from commit 5269f2ea)

Follow-up commit 38b25832 ("box: add space upgrade stubs").

NO_DOC=test
NO_CHANGELOG=test

(cherry picked from commit 764d18ab)

The helper skips a running test with luatest.skip_if in case executed by
Tarantool Enterprise. It's better than checking the package directly in
the test, because luatest.skip_if prints the reason why the test is
skipped.

NO_DOC=test
NO_CHANGELOG=test

(cherry picked from commit d2b216e8)

Online space upgrade applies a function to all tuples in a space.
The function should be pinned so we need a new holder type.

Follow-up commit 38b25832 ("box: add space upgrade stubs").

NO_DOC=internal
NO_TEST=internal
NO_CHANGELOG=internal

(cherry picked from commit 98bb3bd4)

Enum keys are usually stored in a const array of const strings.
Fix opt_def::enum_strs type accordingly.

NO_DOC=refactoring
NO_TEST=refactoring
NO_CHANGELOG=refactoring

(cherry picked from commit 624076ba)

So that the caller can figure out the end of fields array without
calling mp_next(). Needed for decoding space upgrade format.

While we are at it, let's also
 - Replace MP_ARRAY assertion with diag_set. This makes the function
   easier to use when the MsgPack format isn't guaranteed to be
   MP_ARRAY.
 - Rearrange arguments so that [out] arguments are grouped together.

NO_DOC=refactoring
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NO_CHANGELOG=refactoring

(cherry picked from commit 78b0d83a)

Fix the following error:

    {"badRequest": {"message": "The requested availability zone is not
    available", "code": 400}}

NO_DOC=testing stuff
NO_TEST=testing stuff
NO_CHANGELOG=testing stuff

(cherry picked from commit 45bc9281)

This option very often makes tests fail due to the issue with the max
length of socket paths (107 chars). Let's rely on the VARDIR environment
variable or another default value (/tmp/t) when VARDIR is not defined.

NO_DOC=testing stuff
NO_TEST=testing stuff
NO_CHANGELOG=testing stuff

(cherry picked from commit 96d7642e)

This patch changes the length of default socket paths for luatest tests
(when the VARDIR environment variable is not defined). It should reduce
the chance for the issue with the max length of socket paths (107 chars)
to happen.

NO_DOC=testing stuff
NO_TEST=testing stuff
NO_CHANGELOG=testing stuff

(cherry picked from commit c90a227e)

This change adds VARDIR to the PRESERVE_ENVVARS environment variable
to deliver it to 'packpack' docker containers while running packaging
workflows.

NO_DOC=ci
NO_CHANGELOG=ci
NO_TEST=ci

(cherry picked from commit 7ae22101)