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href 2019-01-23 11:21:52 +01:00
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lib/pleroma/clippy.ex Normal file
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# Pleroma: A lightweight social networking server
# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Clippy do
@moduledoc false
# No software is complete until they have a Clippy implementation.
# A ballmer peak _may_ be required to change this module.
def tip() do
tips()
|> Enum.random()
|> puts()
end
def tips() do
host = Pleroma.Config.get([Pleroma.Web.Endpoint, :url, :host])
[
"“πλήρωμα” is “pleroma” in greek",
"For an extended Pleroma Clippy Experience, use the “Redmond” themes in Pleroma FE settings",
"Staff accounts and MRF policies of Pleroma instances are disclosed on the NodeInfo endpoints for easy transparency!\n
- https://catgirl.science/misc/nodeinfo.lua?#{host}
- https://fediverse.network/#{host}/federation",
"Pleroma can federate to the Dark Web!\n
- Tor: https://git.pleroma.social/pleroma/pleroma/wikis/Easy%20Onion%20Federation%20(Tor)
- i2p: https://git.pleroma.social/pleroma/pleroma/wikis/I2p%20federation",
"Lists of Pleroma instances are available at:\n\n- http://distsn.org/pleroma-instances.html\n- https://fediverse.network/pleroma\n- https://the-federation.info/pleroma",
"Pleroma uses the LitePub protocol - https://litepub.social",
"To receive more federated posts, subscribe to relays!\n
- How-to: https://git.pleroma.social/pleroma/pleroma/wikis/Admin%20tasks#relay-managment
- Relays: https://fediverse.network/activityrelay"
]
end
@spec puts(String.t() | [[IO.ANSI.ansicode() | String.t(), ...], ...]) :: nil
def puts(text_or_lines) do
import IO.ANSI
lines =
if is_binary(text_or_lines) do
String.split(text_or_lines, ~r/\n/)
else
text_or_lines
end
longest_line_size =
lines
|> Enum.map(&charlist_count_text/1)
|> Enum.sort(&>=/2)
|> List.first()
pad_text = longest_line_size
pad =
for(_ <- 1..pad_text, do: "_")
|> Enum.join("")
pad_spaces =
for(_ <- 1..pad_text, do: " ")
|> Enum.join("")
spaces = " "
pre_lines = [
" / \\#{spaces} _#{pad}___",
" | |#{spaces} / #{pad_spaces} \\"
]
for l <- pre_lines do
IO.puts(l)
end
clippy_lines = [
" #{bright()}@ @#{reset()}#{spaces} ",
" || ||#{spaces}",
" || || <--",
" |\\_/| ",
" \\___/ "
]
noclippy_line = " "
env = %{
max_size: pad_text,
pad: pad,
pad_spaces: pad_spaces,
spaces: spaces,
pre_lines: pre_lines,
noclippy_line: noclippy_line
}
clippy_line(lines, clippy_lines, env)
rescue
e ->
IO.puts("(Clippy crashed, sorry: #{inspect(e)})")
IO.puts(text_or_lines)
end
defp clippy_line([line | lines], [prefix | clippy_lines], env) do
IO.puts([prefix <> "| ", rpad_line(line, env.max_size)])
clippy_line(lines, clippy_lines, env)
end
# more text lines but clippy's complete
defp clippy_line([line | lines], [], env) do
IO.puts([env.noclippy_line, "| ", rpad_line(line, env.max_size)])
if lines == [] do
IO.puts(env.noclippy_line <> "\\_#{env.pad}___/")
end
clippy_line(lines, [], env)
end
# no more text lines but clippy's not complete
defp clippy_line([], [clippy | clippy_lines], env) do
if env.pad do
IO.puts(clippy <> "\\_#{env.pad}___/")
clippy_line([], clippy_lines, %{env | pad: nil})
else
IO.puts(clippy)
clippy_line([], clippy_lines, env)
end
end
defp clippy_line(_, _, _) do
end
defp rpad_line(line, max) do
pad = max - (charlist_count_text(line) - 2)
pads = Enum.join(for(_ <- 1..pad, do: " "))
[IO.ANSI.format(line), pads <> " |"]
end
defp charlist_count_text(line) do
if is_list(line) do
text = Enum.join(Enum.filter(line, &is_binary/1))
String.length(text)
else
String.length(line)
end
end
end

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@ -1,5 +1,9 @@
defmodule Pleroma.Repo.Migrations.UsersAndActivitiesFlakeId do
use Ecto.Migration
alias Pleroma.Clippy
require Integer
import Ecto.Query
alias Pleroma.Repo
# This migrates from int serial IDs to custom Flake:
# 1- create a temporary uuid column
@ -15,6 +19,8 @@ defmodule Pleroma.Repo.Migrations.UsersAndActivitiesFlakeId do
#execute "update activities set external_id = CAST( LPAD( TO_HEX(id), 32, '0' ) AS uuid);"
#execute "update users set external_id = CAST( LPAD( TO_HEX(id), 32, '0' ) AS uuid);"
clippy = start_clippy_heartbeats()
# Lock both tables to avoid a running server to meddling with our transaction
execute "LOCK TABLE activities;"
execute "LOCK TABLE users;"
@ -52,5 +58,54 @@ defmodule Pleroma.Repo.Migrations.UsersAndActivitiesFlakeId do
execute "ALTER TABLE #{table} ADD CONSTRAINT #{table}_user_id_fkey FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE;"
end
stop_clippy_heartbeats(clippy)
end
defp start_clippy_heartbeats() do
count = from(a in "activities", select: count(a.id)) |> Repo.one!
pid = if count > 5000 do
heartbeat_interval = :timer.minutes(2) + :timer.seconds(30)
all_tips = Clippy.tips() ++ [
"The migration is still running, maybe it's time for another tea?",
"Happy rabbits practice a cute behavior known as a\n“binky:” they jump up in the air\nand twist\nand spin around!",
"Nothing and everything.\n\nI still work.",
"Pleroma runs on a Raspberry Pi!\n\n … but this migration will take forever if you\nactually run on a raspberry pi",
"Status? Stati? Post? Note? Toot?\nRepeat? Reboost? Boost? Retweet? Retoot??\n\nI-I'm confused.",
]
heartbeat = fn(heartbeat, runs, all_tips, tips) ->
tips = if Integer.is_even(runs) do
tips = if tips == [], do: all_tips, else: tips
[tip | tips] = Enum.shuffle(tips)
Clippy.puts(tip)
tips
else
IO.puts "\n -- #{DateTime.to_string(DateTime.utc_now())} Migration still running, please wait…\n"
tips
end
:timer.sleep(heartbeat_interval)
heartbeat.(heartbeat, runs + 1, all_tips, tips)
end
Clippy.puts [
[:red, :bright, "It looks like you are running an older instance!"],
[""],
[:bright, "This migration may take a long time", :reset, " -- so you probably should"],
["go drink a coffee, or a tea, or a beer, a whiskey, a vodka,"],
["while it runs to deal with your temporary fediverse pause!"]
]
:timer.sleep(heartbeat_interval)
spawn_link(fn() -> heartbeat.(heartbeat, 1, all_tips, []) end)
end
end
defp stop_clippy_heartbeats(pid) do
if pid do
Process.unlink(pid)
Process.exit(pid, :kill)
Clippy.puts [[:green, :bright, "Hurray!!", "", "", "Migration completed!"]]
end
end
end