41 lines
1.3 KiB
Fennel
41 lines
1.3 KiB
Fennel
(fn hashes-from-file [name]
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(with-open [f (assert (io.open name :r) name)]
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(accumulate [h []
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l #(f:read "*l")]
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(let [(name hash) (string.match l "([^%s]+) +([^%s]+)")]
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(if name
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(doto h (tset name hash))
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h)))))
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(fn write-restarts [old new]
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(let [old-hashes (hashes-from-file old)
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new-hashes (hashes-from-file new)]
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(with-open [f (io.open "/tmp/restarts" :w)]
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(each [n h (pairs old-hashes)]
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(let [new (. new-hashes n)]
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(when (or (= h "force-restart")
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(= new "force-restart")
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(not (= h new)))
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(f:write (.. n " restart\n"))))))))
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(fn exec [text command]
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(io.write (.. text ": "))
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(match (os.execute command)
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res (print "[OK]")
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(nil err) (error (.. "[FAILED " err "]"))))
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(let [mypath (: (. arg 0) :match "(.*/)")
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activate (.. mypath "activate /")
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old-compiled "/run/s6-rc/compiled/"
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new-compiled "/etc/s6-rc/compiled/"]
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(exec "installing FHS files" activate)
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(write-restarts (.. old-compiled "hashes") (.. new-compiled "hashes"))
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(exec "updating service database"
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(.. "s6-rc-update -f /tmp/restarts " new-compiled))
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(exec "starting services" (.. "s6-rc -u -p change default"))
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)
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