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feat(orchestrator): store cmd as file and add fn to read and update c… #1579

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merged 4 commits into from
Dec 4, 2023
Merged

feat(orchestrator): store cmd as file and add fn to read and update c… #1579

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e4e5566
feat(orchestrator): store cmd as file and add fn to read and update c…
pepoviola Dec 4, 2023
4f3fe5b
typo
pepoviola Dec 4, 2023
d0637fc
nix hash
pepoviola Dec 4, 2023
75c4c82
Merge branch 'main' into feat/store-cmd-as-file
pepoviola Dec 4, 2023
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2 changes: 1 addition & 1 deletion flake-module.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@
...
}: let
# this change on each change of dependencies, unfortunately this hash not yet automatically updated from SRI of package.lock
npmDepsHash = "sha256-crUfrJrTjkKpt2AUL8/E1pa4XoZZorme3ZZocccs2bM=";
npmDepsHash = "sha256-DI22Ywb0ZWIZAnfjqpkGbA0T0g3MbsvdtoI1OeeXLjQ=";
####

# there is officia polkadot on nixpkgs, but it has no local rococo wasm to run
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19 changes: 18 additions & 1 deletion javascript/packages/orchestrator/zombie-wrapper.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -8,13 +8,16 @@ if [ -f /cfg/coreutils ]; then
LS="/cfg/coreutils ls"
KILL="/cfg/coreutils kill"
SLEEP="/cfg/coreutils sleep"
ECHO="/cfg/coreutils echo"
CAT="/cfg/coreutils cat"
else
RM="rm"
MKFIFO="mkfifo"
MKNOD="mknod"
LS="ls"
KILL="kill"
SLEEP="sleep"
CAT="cat"
fi


Expand Down Expand Up @@ -44,6 +47,8 @@ child_pid=""
# get the command to exec
CMD=($@)

# File to store CMD (and update from there)
ZOMBIE_CMD_FILE=/cfg/zombie.cmd
restart() {
if [ ! -z "${child_pid}" ]; then
$KILL -9 "$child_pid"
Expand Down Expand Up @@ -71,6 +76,16 @@ resume() {
fi
}

# update start cmd by reading /cfg/zombie.cmd
update_zombie_cmd() {
NEW_CMD=$($CAT $ZOMBIE_CMD_FILE)
CMD=($NEW_CMD)
}

# Store the cmd and make it available to later usage
# NOTE: echo without new line to allow to customize the cmd later
$ECHO -n "${CMD[@]}" > $ZOMBIE_CMD_FILE

# Exec the command and get the child pid
"${CMD[@]}" &
child_pid="$!"
Expand All @@ -83,7 +98,7 @@ fi;
# keep listening from the pipe
while read line <$pipe
do
if [[ "$line" == 'quit' ]]; then
if [[ "$line" == "quit" ]]; then
break
elif [[ "$line" =~ "restart" ]]; then
# check if we have timeout between restart
Expand All @@ -96,6 +111,8 @@ do
pause
elif [[ "$line" == "resume" ]]; then
resume
elif [[ "$line" == "update-cmd" ]]; then
update_zombie_cmd
fi
done

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