Mercurial > libervia-backend
annotate doc/libervia-cli/common_arguments.rst @ 4240:79c8a70e1813
backend, frontend: prepare remote control:
This is a series of changes necessary to prepare the implementation of remote control
feature:
- XEP-0166: add a `priority` attribute to `ApplicationData`: this is needed when several
applications are working in a same session, to know which one must be handled first.
Will be used to make Remote Control have precedence over Call content.
- XEP-0166: `_call_plugins` is now async and is not used with `DeferredList` anymore: the
benefit to have methods called in parallels is very low, and it cause a lot of trouble
as we can't predict order. Methods are now called sequentially so workflow can be
predicted.
- XEP-0167: fix `senders` XMPP attribute <=> SDP mapping
- XEP-0234: preflight acceptance key is now `pre-accepted` instead of `file-accepted`, so
the same key can be used with other jingle applications.
- XEP-0167, XEP-0343: move some method to XEP-0167
- XEP-0353: use new `priority` feature to call preflight methods of applications according
to it.
- frontend (webrtc): refactor the sources/sink handling with a more flexible mechanism
based on Pydantic models. It is now possible to have has many Data Channel as necessary,
to have them in addition to A/V streams, to specify manually GStreamer sources and
sinks, etc.
- frontend (webrtc): rework of the pipeline to reduce latency.
- frontend: new `portal_desktop` method. Screenshare portal handling has been moved there,
and RemoteDesktop portal has been added.
- frontend (webrtc): fix `extract_ufrag_pwd` method.
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| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Sat, 11 May 2024 13:52:41 +0200 |
| parents | d0b66efc6c0e |
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| rev | line source |
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| 2946 | 1 ================ |
| 2 common arguments | |
| 3 ================ | |
| 4 | |
| 5 Some arguments are used in many commands. This page describe them. | |
| 6 | |
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7 .. _libervia-cli_common_profile: |
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8 |
| 2946 | 9 profile |
| 10 ======= | |
| 11 | |
| 12 profile arguments are really common, they allow you to select your profile. | |
| 13 If you don't select any, the default profile is used, which is the first | |
| 14 profile created or the one you have explicitly set. You can check which profile | |
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15 is used by default with ``li profile default``. |
| 2946 | 16 |
| 17 The common arguments for profile are: | |
| 18 | |
| 19 ``-p PROFILE, --profile PROFILE`` | |
| 20 to select the name of your profile. It can be a profile key like ``@DEFAULT@`` | |
| 21 | |
| 22 ``-c, --connect`` | |
| 23 connect the profile to the XMPP server before doing anything else. If your | |
| 24 profile is already connected, nothing happen. This is specially useful in scripts. | |
| 25 | |
| 26 ``--start-session`` | |
| 27 starts a session without connecting, this can be needed if you can't connect but | |
| 28 you need to access your session e.g. to change parameters. | |
| 29 This is advanced used and is not need in most common cases. | |
| 30 | |
| 31 ``--pwd PASSWORD`` | |
| 32 the password of your profile, needed if the session is not started yet. | |
| 33 | |
| 34 .. note:: | |
| 35 | |
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36 using the ``--pwd`` option is not secure if you are not the only user of your machine: |
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37 the password will appear **IN CLEAR** in the list of launched processes, or in the |
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38 history of your shell. If the profile password is needed and not specified, it will be |
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39 prompted (with echo disabled). If you are on a shared machine or if anybody can access |
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40 your shell history at some point, you should either connect first your profile with an |
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41 other frontend (Primitivus for instance), or avoid the ``--pwd`` option and use the |
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42 prompt instead. |
| 2946 | 43 |
| 44 .. _pubsub_common: | |
| 45 | |
| 46 pubsub | |
| 47 ====== | |
| 48 | |
| 49 pubsub arguments are used in many commands, they allow you to select a service, node and | |
| 50 items. Depending on the command, you may only not be able to select an item, or you may | |
| 51 select one or multiple items. | |
| 52 | |
| 53 The common arguments for pubsub are: | |
| 54 | |
| 55 ``-u PUBSUB_URL, --pubsub-url PUBSUB_URL`` | |
| 56 retrieve pubsub information from an URL. You can use either and ``xmpp:`` scheme or an | |
| 57 ``https:`` (or ``http:``) scheme. In the later case, the HTML page will be downloaded to | |
| 58 retrieve the location of the XMPP node/item, if available. | |
| 59 Note that you can override parts of the location in the URL if you specify service, node | |
| 60 or item. | |
| 61 | |
| 62 e.g.:: | |
| 63 | |
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64 $ li blog get -u https://www.goffi.org |
| 2946 | 65 |
| 66 ``-s SERVICE, --service`` | |
| 67 used to specifiy the JID of the pubsub service | |
| 68 | |
| 69 ``-n NODE, --node NODE`` | |
| 70 used to specifiy the pubsub node | |
| 71 | |
| 72 ``-i ITEM, --item ITEM`` | |
| 73 for commands where an item can be specified, you do it with this option. In some | |
| 74 commands, multiple items can be specified, in this case just use this arguments several | |
| 75 times. | |
| 76 | |
| 77 ``-L, --last-item`` | |
| 78 when an item id is needed, you can use this option to retrieve the last published item. | |
| 79 e.g.:: | |
| 80 | |
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81 $ li blog edit --last-item |
| 2946 | 82 |
| 83 ``-M, --max-items`` | |
| 84 use to specify a maxium number of items to retrieve, when it makes sense. | |
| 85 Note that this is using the pubsub max (i.e. defined in | |
| 86 `XEP-0060 <https://xmpp.org/extensions/xep-0060.html>`_). Modern pubsub services should | |
| 87 implement `Result Set Management <https://xmpp.org/extensions/xep-0059.html>`_ (RSM) and in | |
| 88 this case the ``-m, --max`` argument should be prefered. See below for RSM common | |
| 89 arguments. | |
| 90 | |
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91 ``-C, --no-cache`` |
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92 skip pubsub cache. By default, internal pubsub cache is used automatically if requested |
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93 items are available there. With this option set, a request to the pubsub service will |
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94 always be done, regardless of presence of node items in internal cache. |
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95 |
| 2946 | 96 result set management |
| 97 ===================== | |
| 98 | |
| 99 Result Set Management (RSM) common arguments are used to navigate into pages of results | |
| 100 when lot of elements may be expected. Given a result with a large number of arguments, a | |
| 101 *page* is set of elements which correspond to an *index* (a page number). For instance if | |
| 102 you have 123 elements, you can ask them 10 by 10, and *index 1* match elements from 11 to | |
| 103 20 included. | |
| 104 | |
| 105 | |
| 106 ``-a ITEM_ID, --after ITEM_ID`` | |
| 107 find page after this item. You usually use the last item id of the latest page you got. | |
| 108 | |
| 109 ``-b ITEM_ID, --before ITEM_ID`` | |
| 110 find page before this item. This this usually used when you check items backwards | |
| 111 | |
| 112 ``--index RSM_INDEX`` | |
| 113 index of the page to retrieve. Note that first page has index **0**. | |
| 114 | |
| 115 ``-m RSM_MAX, --max RSM_MAX`` | |
| 116 used to specify a maxium number of items to retrieve per page. Note that the actual | |
| 117 maximum number of items per page used may be lower if the service used consider that | |
| 118 your request is too big. | |
| 119 | |
| 120 message archive management | |
| 121 ========================== | |
| 122 | |
| 123 Message Archive Management (MAM) argument is used by some commands (related to instant message or | |
| 124 pubsub) to filter results. | |
| 125 | |
| 126 There is currently only one argument in this group: | |
| 127 | |
| 128 ``-f FILTER_NAME VALUE, --filter FILTER_NAME VALUE`` | |
| 129 specify a MAM filter to use. Depending on the service supporting MAM, some filters can | |
| 130 be used to do things like full text search. The available filters depend on the service | |
| 131 you use, please check documentation of your service. | |
| 132 | |
| 133 order-by | |
| 134 ======== | |
| 135 | |
| 2957 | 136 Order-By argument specify how the returned elements are sorted. |
| 2946 | 137 |
| 138 There is currently only one argument in this group: | |
| 139 | |
| 140 ``-o {creation,modification}, --order-by {creation,modification}`` | |
| 141 specify how result is sorted. with ``creation``, first created element is returned | |
| 142 first. There is no notion of *creation* of *modification* in original | |
| 143 `pubsub XEP <https://xmpp.org/extensions/xep-0060.html>`_, as publishing an item with an | |
| 144 existing id will overwrite the older one, creating a new item. With this option, we use | |
| 145 the terms defined in `XEP-0413 <https://xmpp.org/extensions/xep-0413.html>`_, and | |
| 146 *creation* time is the time when the first item has been published, before being | |
| 147 overwritten. | |
| 148 | |
| 149 In the case of ``modification``, if an item is overwritten, it reappears on top, this is | |
| 150 the default pubsub sorting order. | |
| 151 | |
| 152 progress | |
| 153 ======== | |
| 154 | |
| 155 This single option may be used when a long operation is happening, like a file transfer. | |
| 156 | |
| 157 ``-P, --progress`` | |
| 158 Show progress bar. | |
| 159 | |
| 160 verbose | |
| 161 ======= | |
| 162 | |
| 163 ``--verbose, -v`` | |
| 164 Add a verbosity level (can be used multiple times). Use to have more concise output by | |
| 165 default when it makes sense. | |
| 166 | |
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167 .. _draft_common: |
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168 |
| 2946 | 169 draft |
| 170 ===== | |
| 171 | |
| 172 Common arguments used when an edition is potentially long to do, and a file may be kept | |
| 173 until publication. | |
| 174 | |
| 175 | |
| 176 ``-D, --current`` | |
| 177 Used when you have started to edit something (e.g. a blog post), which is not yet | |
| 178 published, and you want to continue your work. | |
| 179 | |
| 180 e.g.:: | |
| 181 | |
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182 $ li blog edit -D |
| 2946 | 183 |
| 184 ``-F DRAFT_PATH, --draft-path DRAFT_PATH`` | |
| 185 Used when you have started to edit something and want to continue your work from this | |
| 186 file. In other words, it's similar to ``-D, --current`` except that you specify the file | |
| 187 to use instead of using the last available draft. | |
| 188 | |
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189 .. _libervia-cli_output: |
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190 |
| 2946 | 191 output |
| 192 ====== | |
| 193 | |
| 194 Output is used when you want to get the result of the command in a specific way. It may be | |
| 195 used, for instance, to retrieve the result formatted in JSON so the data can be easily | |
| 196 manipulated by a script, or if you want only a specific element of the result. | |
| 197 | |
| 198 ``-O {…}, --output {…}`` | |
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199 specify the output to use. Available options depends of the command you are using, |
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200 check ``li [your command] --help`` to know them. |
| 2946 | 201 |
| 202 e.g.:: | |
| 203 | |
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204 $ li blog get -O json |
| 2946 | 205 |
| 206 ``--output-option OUTPUT_OPTS, --oo OUTPUT_OPTS`` | |
| 207 depending of the output selected, you may have options to customise the output. | |
| 208 For instance, if you use the ``template`` output, you may use an option to display the | |
| 209 result in a browser. | |
| 210 | |
| 211 e.g.:: | |
| 212 | |
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213 $ li blog |
| 2946 | 214 |
| 215 Some options expect parameters, in this case they can be specified using ``=``. | |
| 216 | |
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217 e.g. specifying a template to use:: |
| 2946 | 218 |
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219 $ li blog get -O template --oo browser --oo template=/tmp/my_template.html |
| 3609 | 220 |
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221 .. _time_pattern: |
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222 |
| 3609 | 223 Time Pattern |
| 224 ============ | |
| 225 | |
| 226 When a command expect a date or date with time argument, you can use a "time pattern" (you | |
| 227 usually see the ``TIME_PATTERN`` as name of the argument in ``--help`` message when it can | |
| 228 be used). | |
| 229 | |
| 230 This is a flexible way to enter a date, you can enter a date in one of the following way: | |
| 231 | |
| 232 - the string ``now`` to indicate current date and time; | |
| 233 - an absolute date using an international format. The parser know many formats (please | |
| 234 check dateutil_ package documentation to have a detail of supported formats). Please | |
| 235 note that days are specified first and that if no time zone is specified, the local | |
| 236 time zone of your computer is assumed; | |
| 237 - a relative date (or "relative delta"), see below for details on how to construct it; | |
| 238 - a reference time (``now`` or absolute date as above) followed by a relative delta. If | |
| 239 the reference time is not specified, ``now`` is used; | |
| 240 | |
| 241 Time pattern is not case sensitive. | |
| 242 | |
| 243 .. _dateutil: https://dateutil.readthedocs.io | |
| 244 | |
| 245 Relative Delta | |
| 246 -------------- | |
| 247 | |
| 248 A relative delta is specified with: | |
| 249 | |
| 250 - an optional direction ``+`` for times after reference time or ``-`` for time before reference time (defaulting to ``+``); | |
| 251 - a number for the quantity of units | |
| 252 - a unit (e.g. seconds or minutes), see the bellow for details | |
| 253 - the word ``ago`` which is same as using ``-`` for direction (direction and ``ago`` can't | |
| 254 be used at the same time) | |
| 255 | |
| 256 Time Units | |
| 257 ---------- | |
| 258 | |
| 259 The singular or plural form of following units can be used: | |
| 260 | |
| 261 - ``s``, ``sec``, ``second`` | |
| 262 - ``m``, ``min``, ``minute`` | |
| 263 - ``h``, ``hr``, ``hour`` | |
| 264 - ``d``, ``day`` | |
| 265 - ``w``, ``week`` | |
| 266 - ``mo``, ``month`` | |
| 267 - ``y``, ``yr``, ``year`` | |
| 268 | |
| 269 examples | |
| 270 -------- | |
| 271 | |
| 272 - ``2022-01-01``: first of January of 2022 at midnight | |
| 273 - ``2017-02-10T13:05:00Z``: 10th of February 2017 at 13:05 UTC | |
| 274 - ``2019-07-14 12:00:00 CET``: 14th of July 2019 at 12:00 CET | |
| 275 - ``10 min ago``: current time minus 10 minutes | |
| 276 - ``now - 10 m``: same as above (current time minus 10 minutes) | |
| 277 - ``07/08/2021 +5 hours``: 7 August 2021 at midnight (local time of the computer) + 5 | |
| 278 hours, i.e. 5 in the morning at local time. | |
| 279 |