Mercurial > libervia-backend
annotate doc/libervia-cli/pipe.rst @ 3941:036188fff714
plugin pubsub cache: avoid race condition by retrying node request:
When retrieving items, there may be a race condition if a node is not found in cache, then
created before `setPubsubNode` is called. This patch handle this case by retrying in case
of UNIQUE constraint violation.
| author | Goffi <goffi@goffi.org> |
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| date | Sat, 15 Oct 2022 20:38:33 +0200 |
| parents | 267e4987b58b |
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1 ================================================== |
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2 pipe: send/receive data stream through shell pipes |
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3 ================================================== |
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4 |
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5 ``pipe`` commands allow you to send or receive data stream through a Unix shell pipe. |
| 3505 | 6 Libervia will create a network connection (using XMPP and Jingle) between you an your |
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7 contact. |
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8 |
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9 in |
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10 == |
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11 |
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12 Receive data stream. Data will be send to stdout, so it can be piped out or simply print |
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13 to the screen. You can specify bare jids of entities to accept stream for, by default all |
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14 streams are accepted. |
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15 |
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16 example |
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17 ------- |
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18 |
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19 Receive a video stream, and redirect it to mpv_ so show the video:: |
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20 |
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21 $ li pipe in | mpv - |
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22 |
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23 .. _mpv: https://mpv.io/ |
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24 |
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25 out |
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26 === |
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27 |
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28 Send data stream. Data comes from stdin, so you may use pipe in something or just write |
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29 some text. |
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30 |
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31 The only expected argument is the full jid of the device where the stream must be piped |
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32 out. |
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33 |
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34 example |
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35 ------- |
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36 |
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37 Send a video to louise:: |
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38 |
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39 $ li pipe out louise@example.org/libervia.123 < some_video.webm |
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41 Send output from ``cal`` command to louise:: |
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42 |
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43 $ cal | li pipe out louise@example.org/libervia.123 |