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cache-relation
Valentin Lab 2 months ago
parent
ee14f3d953
commit
660074ef1d
1 changed files with 285 additions and 33 deletions
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  1. 318
      bin/compose-core

318
bin/compose-core
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@ -82,6 +82,9 @@ $WHITE$exname$NORMAL reads '/etc/compose.conf' for global variables, and
"
time_now() { date +%s.%3N; }
time_elapsed() { echo "scale=3; $2 - $1" | bc; }
## XXXvlab: this doesn't seem to work when 'compose' is called in
## a hook of a charm.
#[[ "${BASH_SOURCE[0]}" == "" ]] && SOURCED=true
@ -1454,7 +1457,6 @@ export -f _get_service_charm_cached
get_service_charm () {
local service="$1"
if [ -z "$service" ]; then
echo ${FUNCNAME[@]} >&2
print_syntax_error "$FUNCNAME: Please specify a service as first argument."
return 1
fi
@ -2474,10 +2476,15 @@ export -f get_compose_relations
get_all_services() {
local cache_file="$state_tmpdir/$FUNCNAME.cache.$GLOBAL_ALL_RELATIONS_HASH" \
local services compose_yml_services service
if [ -z "$GLOBAL_ALL_RELATIONS_HASH" ]; then
err-d "Can't access global \$GLOBAL_ALL_RELATIONS_HASH"
return 1
fi
local cache_file="$CACHEDIR/$FUNCNAME.cache.$(H "$GLOBAL_ALL_RELATIONS_HASH" "$(declare -f "$FUNCNAME")")" \
s rn ts rc td services service
if [ -e "$cache_file" ]; then
#debug "$FUNCNAME: SESSION cache hit $1"
#debug "$FUNCNAME: cache hit $1"
cat "$cache_file"
return 0
fi
@ -2494,8 +2501,17 @@ get_all_services() {
services["$service"]=1
echo "$service"
done
done < "$GLOBAL_ALL_RELATIONS" > "$cache_file"
done < "$GLOBAL_ALL_RELATIONS" > "$cache_file.wip"
compose_yml_services=($(compose:yml:root:services)) || return 1
for service in "${compose_yml_services[@]}"; do
[ "${services[$service]}" ] && continue
services["$service"]=1
echo "$service"
done >> "$cache_file.wip"
mv "$cache_file"{.wip,} || return 1
cat "$cache_file"
}
export -f get_all_services
@ -2559,28 +2575,25 @@ export -f get_service_relation
## (base_service, relation_config)
##
get_service_incoming_relations() {
local service="$1" relation="$2" cache_file="$state_tmpdir/$FUNCNAME.cache.$(H "$@" "$GLOBAL_ALL_RELATIONS_HASH")" \
s rn ts rc td
if [ -z "$GLOBAL_ALL_RELATIONS" ]; then
err-d "Can't access global \$GLOBAL_ALL_RELATIONS"
if [ -z "$SUBSET_ALL_RELATIONS_HASH" ]; then
err-d "Expected \$SUBSET_ALL_RELATIONS_HASH to be set."
return 1
fi
local service="$1" relation="$2" \
cache_file="$state_tmpdir/$FUNCNAME.cache.$(H "$@" "$SUBSET_ALL_RELATIONS_HASH")" \
s rn ts rc td
if [ -e "$cache_file" ]; then
#debug "$FUNCNAME: SESSION cache hit $1"
cat "$cache_file"
return 0
fi
if [ -z "$GLOBAL_ALL_RELATIONS" ]; then
err "Can't access global \$GLOBAL_ALL_RELATIONS"
return 1
fi
while read-0 s rn ts rc _td; do
[[ "$ts" == "$service" ]] || continue
[[ "$rn" == "$relation" ]] || continue
relation_data_file=$(get_relation_data_file "$s" "$ts" "$rn" "$rc") || return 1
printf "%s\0" "$s" "$(cat "$relation_data_file")"
done < "$GLOBAL_ALL_RELATIONS" > "$cache_file"
printf "%s\0" "$s" "$(cat "$relation_data_file")" || return 1
debug "Found relation $rn from $s to $ts" >&2
done < "$SUBSET_ALL_RELATIONS" > "$cache_file"
cat "$cache_file"
}
@ -2921,14 +2934,170 @@ _out_after_value_from_def() {
}
get_all_relations () {
local cache_file="$state_tmpdir/$FUNCNAME.cache.$(H "$@" "$(declare -p without_relations)")" \
services
get_all_compose_yml_service() {
if [ -z "$COMPOSE_YML_CONTENT_HASH" ]; then
COMPOSE_YML_CONTENT_HASH=$(compose:yml:hash) || {
err "Failed to get compose yml hash"
return 1
}
fi
local cache_file="$CACHEDIR/$FUNCNAME.cache.$COMPOSE_YML_CONTENT_HASH"
if [ -e "${cache_file}" ]; then
#debug "$FUNCNAME: cache hit: ${cache_file}"
cat "${cache_file}"
return 0
fi
compose_yml_content=$(get_compose_yml_content) || return 1
printf "%s" "${compose_yml_content}" | shyaml keys-0 2>/dev/null > "${cache_file}.wip" || {
err "Failed to get keys of compose content."
return 1
}
mv "${cache_file}"{.wip,} || return 1
cat "${cache_file}"
}
## Outputs all relations array.
_service:all:relations_cached() {
local services service E
services=($(compose:yml:root:services)) || return 1
get_all_relations "${services[@]}" || return 1
}
## Outputs all relations array.
service:all:relations() {
if [ -z "$COMPOSE_YML_CONTENT_HASH" ]; then
COMPOSE_YML_CONTENT_HASH=$(compose:yml:hash) || {
err "Failed to get compose yml hash."
return 1
}
fi
local cache_file="$CACHEDIR/$FUNCNAME.cache.$COMPOSE_YML_CONTENT_HASH"
if [ -e "${cache_file}" ]; then
# debug "$FUNCNAME: SESSION cache hit $1"
cat "${cache_file}"
return 0
fi
_service:all:relations_cached > "${cache_file}.wip" || {
err-d "Failed to compute all relations."
return 1
}
mv "${cache_file}"{.wip,} || return 1
cat "${cache_file}"
}
_service:all:relations_hash_cached() {
if [ -z "$COMPOSE_YML_CONTENT_HASH" ]; then
COMPOSE_YML_CONTENT_HASH=$(compose:yml:hash) || {
err "Failed to get compose yml hash."
return 1
}
fi
local cache_file="$CACHEDIR/$FUNCNAME.cache.$COMPOSE_YML_CONTENT_HASH" \
hash
if [ -e "${cache_file}" ]; then
# debug "$FUNCNAME: SESSION cache hit $1"
cat "${cache_file}"
return 0
fi
service:all:relations > "${cache_file}.pre" || {
err-d "Failed to get all relations."
return 1
}
{
p0 "$(hash_get < "${cache_file}.pre")" || return 1
cat "${cache_file}.pre"
rm "${cache_file}.pre"
} > "${cache_file}".wip || return 1
mv "${cache_file}"{.wip,} || return 1
cat "${cache_file}"
}
## Get all relations from all services in the current compose file.
## Sets GLOBAL_ALL_RELATIONS_HASH and returns all relations array.
service:all:set_relations_hash() {
if [ -n "$GLOBAL_ALL_RELATIONS" ]; then
if [ -z "$GLOBAL_ALL_RELATIONS_HASH" ]; then
err "Can't access global \$GLOBAL_ALL_RELATIONS_HASH"
echo " (despite \$GLOBAL_ALL_RELATIONS being set)" >&2
return 1
fi
return 0
fi
## sets COMPOSE_YML_CONTENT_HASH
_service:all:relations_hash_cached >/dev/null || return 1
{
read-0 GLOBAL_ALL_RELATIONS_HASH || return 1
export GLOBAL_ALL_RELATIONS_HASH
## transfer to statedir
export GLOBAL_ALL_RELATIONS="$state_tmpdir/$FUNCNAME.cache.$COMPOSE_YML_CONTENT_HASH"
cat > "$GLOBAL_ALL_RELATIONS"
} < <(_service:all:relations_hash_cached)
if [ -z "$GLOBAL_ALL_RELATIONS" ]; then
err "Failed to set \$GLOBAL_ALL_RELATIONS."
return 1
fi
if [ -z "$GLOBAL_ALL_RELATIONS_HASH" ]; then
err "Failed to set \$GLOBAL_ALL_RELATIONS_HASH."
return 1
fi
}
get_subset_relations () {
local service all_services services start
if [ -n "$SUBSET_ALL_RELATIONS" ]; then
return 0
fi
if [ -z "$GLOBAL_ALL_RELATIONS_HASH" ]; then
err-d "Can't access global \$GLOBAL_ALL_RELATIONS_HASH"
return 1
fi
cache_hash=$(H "$@" "$GLOBAL_ALL_RELATIONS_HASH" "$(declare -f get_subset_relations)")
local cache_file="$CACHEDIR/$FUNCNAME.cache.$cache_hash"
if [ -e "${cache_file}" ]; then
export SUBSET_ALL_RELATIONS="$cache_file"
hash=$(hash_get < "$cache_file") || return 1
export SUBSET_ALL_RELATIONS_HASH="$hash"
cat "${cache_file}"
return 0
fi
## collect all connected services first
all_services=("$@")
while [ "${#all_services[@]}" != 0 ]; do
array_pop all_services service
#debug " Getting relations for $DARKYELLOW$service$NORMAL"
while read-0 s rn ts rc td; do
[[ "$s" == "$service" ]] || continue
#debug " adding relation $DARKBLUE$rn$NORMAL to $DARKYELLOW$ts$NORMAL"
p0 "$service" "$rn" "$ts" "$rc" "$td"
[ -n "${services[$ts]}" ] || all_services+=("$ts")
done < "$GLOBAL_ALL_RELATIONS"
services["$service"]=1
done > "$cache_file.wip"
mv "$cache_file"{.wip,} || return 1
export SUBSET_ALL_RELATIONS="$cache_file"
hash=$(hash_get < "$cache_file") || return 1
export SUBSET_ALL_RELATIONS_HASH="$hash"
cat "$cache_file"
}
get_all_relations () {
if [ -z "$COMPOSE_YML_CONTENT_HASH" ]; then
COMPOSE_YML_CONTENT_HASH=$(compose:yml:hash) || return 1
fi
if [ -n "$GLOBAL_ALL_RELATIONS" ]; then
cat "$GLOBAL_ALL_RELATIONS" || return 1
return 0
fi
local cache_file="$state_tmpdir/$FUNCNAME.cache.$(H "$@" "$COMPOSE_YML_CONTENT_HASH" "$(declare -p without_relations)")" \
services all_services service services_uses services_provides \
changed summon required recommended optional
if [ -e "${cache_file}" ]; then
#debug "$FUNCNAME: SESSION cache hit $1"
@ -3176,7 +3345,7 @@ get_all_relations () {
while read-0 p s rn ts rc td; do
if [ -z "$p" ] || [ "$p" == "," ]; then
relation_done["$s:$rn"]=1
# printf " .. %-30s %-30s %-30s\n" "--" "$s" "$rn" >&2
# printf " .. %-30s %-30s %-30s\n" "$s" "$ts" "$rn" >&2
printf "%s\0" "$s" "$rn" "$ts" "$rc" "$td" >> "${cache_file}.wip.final"
had_new_relation=1
else
@ -4080,7 +4249,7 @@ get_compose_yml_content() {
COMPOSE_YML_FILE=$(get_compose_yml_location) || return 1
fi
if [ -e "$COMPOSE_YML_FILE" ]; then
debug "Found $WHITE$exname$NORMAL YAML file in '$COMPOSE_YML_FILE'."
# debug "Found $WHITE$exname$NORMAL YAML file in '$COMPOSE_YML_FILE'."
COMPOSE_YML_CONTENT=$(cat "$COMPOSE_YML_FILE") || {
err "Could not read '$COMPOSE_YML_FILE'."
return 1
@ -4111,6 +4280,37 @@ get_compose_yml_content() {
}
export -f get_compose_yml_content
compose:yml:hash() {
local cache_file="$state_tmpdir/$FUNCNAME.cache"
if [ -e "$cache_file" ]; then
cat "$cache_file" &&
touch "$cache_file" || return 1
return 0
fi
compose_yml_content=$(get_compose_yml_content) || return 1
compose_yml_hash=$(echo "$compose_yml_content" | hash_get) || return 1
e "$compose_yml_hash" | tee "$cache_file" || return 1
}
export -f compose:yml:hash
compose:yml:root:services() {
local cache_file="$state_tmpdir/$FUNCNAME.cache" services compose_yml_content
if [ -e "$cache_file" ]; then
cat "$cache_file" &&
touch "$cache_file" || return 1
return 0
fi
compose_yml_content=$(get_compose_yml_content) || return 1
services=($(e "$compose_yml_content" | shyaml keys)) || return 1
e "${services[*]}" | tee "$cache_file" || return 1
}
export -f compose:yml:root:services
get_default_target_services() {
local services=("$@")
@ -4349,9 +4549,12 @@ display_commands_help() {
get_docker_charm_action() {
local services service charm relation_name target_service relation_config \
target_charm
services=($(get_compose_yml_content | yq -r 'keys().[]' 2>/dev/null)) || return 1
NO_CONSTRAINT_CHECK=1 get_all_relations "${services[@]}" >/dev/null || return 1
target_charm services
## XXXvlab: this is for get_service_relations
NO_CONSTRAINT_CHECK=True service:all:set_relations_hash || {
err-d "Failed to set relations hash."
return 1
}
services=($(get_all_services)) || return 1
for service in "${services[@]}"; do
printf "%s:\n" "$service"
@ -4375,8 +4578,12 @@ export -f get_docker_charm_action
get_docker_charm_action_help() {
local services service charm relation_name target_service relation_config \
target_charm
services=($(get_compose_yml_content | shyaml keys 2>/dev/null))
NO_CONSTRAINT_CHECK=1 get_all_relations "${services[@]}" >/dev/null || return 1
## XXXvlab: this is for get_service_relations
NO_CONSTRAINT_CHECK=True service:all:set_relations_hash || {
err-d "Failed to set relations hash."
return 1
}
services=($(get_all_services)) || return 1
for service in "${services[@]}"; do
out=$(
charm=$(get_service_charm "$service") || return 1
@ -4667,6 +4874,7 @@ no_init=
action=
stage="main" ## switches from 'main', to 'action', 'remainder'
is_docker_compose_action=
is_docker_compose_action_multi_service=
rebuild_relations_to_service=()
color=
declare -A without_relations
@ -4806,6 +5014,12 @@ while read-0 arg; do
fi
pos_args=($(echo "$DC_USAGE" | sed -r 's/\[-[^]]+\] ?//g;s/\[options\] ?//g'))
pos_args=("${pos_args[@]:1}")
if [[ "${pos_args[0]}" == "[SERVICE...]" ]]; then
is_docker_compose_action_multi_service=1
elif [[ "${pos_args[0]}" == "SERVICE" ]]; then
is_docker_compose_action_multi_service=0
fi
# echo "USAGE: $DC_USAGE"
# echo "pos_args: ${pos_args[@]}"
# echo "MULTI: $DC_MATCH_MULTI"
@ -4916,8 +5130,8 @@ aexport remainder_args
COMPOSE_YML_FILE=$(get_compose_yml_location) || exit 1
COMPOSE_YML_CONTENT=$(get_compose_yml_content) || exit 1
export COMPOSE_YML_FILE COMPOSE_YML_CONTENT
COMPOSE_YML_CONTENT_HASH=$(compose:yml:hash) || exit 1
export COMPOSE_YML_FILE COMPOSE_YML_CONTENT COMPOSE_YML_CONTENT_HASH
charm.sanity_checks || die "Sanity checks about charm-store failed. Please correct."
@ -4933,10 +5147,9 @@ if [ -z "$is_docker_compose_action" -a "$action" ]; then
exit 1
fi
services_args=($(compose:yml:root:services)) || return 1
## Required by has_service_action
array_read-0 services_args < <(printf "%s" "$COMPOSE_YML_CONTENT" | shyaml keys-0 2>/dev/null)
NO_CONSTRAINT_CHECK=1 get_all_relations "${services_args[@]}" >/dev/null || exit 1
service:all:set_relations_hash
remainder_args=("${remainder_args[@]:1}")
if has_service_action "$action_service" "$action" >/dev/null; then
@ -4971,7 +5184,7 @@ else
case "$action" in
ps|up)
if [ "${#services_args[@]}" == 0 ]; then
array_read-0 services_args < <(printf "%s" "$COMPOSE_YML_CONTENT" | shyaml keys-0 2>/dev/null)
services_args=($(compose:yml:root:services)) || return 1
fi
;;
config)
@ -4985,11 +5198,48 @@ NO_CONSTRAINT_CHECK=True
case "$action" in
up)
NO_CONSTRAINT_CHECK=
if [ -n "$DEBUG" ]; then
Elt "solve all relations"
start=$(time_now)
fi
service:all:set_relations_hash || exit 1
if [ -n "$DEBUG" ]; then
elapsed="$(time_elapsed $start "$(time_now)")" || exit 1
print_info "$(printf "%.3fs" "$elapsed")"
Feedback
fi
all_services=($(get_all_services)) || exit 1
## check that services_args is a subset of all_services
for service in "${services_args[@]}"; do
[[ " ${all_services[*]} " == *" $service "* ]] || {
err "Service ${DARKYELLOW}$service${NORMAL} is not defined in the current compose file."
echo " Neither is is a dependency of a service in the compose file." >&2
echo " These are the services directly or indirectly available from current compose file:" >&2
for service in "${all_services[@]}"; do
echo " - ${DARKYELLOW}$service${NORMAL}" >&2
done
exit 1
}
done
;;
esac
if [ -n "$is_docker_compose_action_multi_service" ]; then
if [ -n "$DEBUG" ]; then
Elt "get relation subet"
start=$(time_now)
fi
get_all_relations "${services_args[@]}" >/dev/null || exit 1
get_subset_relations "${services_args[@]}" >/dev/null || exit 1
if [ -n "$DEBUG" ]; then
elapsed="$(time_elapsed $start "$(time_now)")" || exit 1
print_info "$(printf "%.3fs" "$elapsed")"
Feedback
fi
fi
if [ "$is_docker_compose_action" -a "${#services_args[@]}" -gt 0 ]; then
services=($(get_master_services "${services_args[@]}")) || exit 1
@ -5006,8 +5256,10 @@ if [ "$is_docker_compose_action" -a "${#services_args[@]}" -gt 0 ]; then
seen[$mservice]=1
action_posargs+=("$mservice")
done
else
elif [ "$is_docker_compose_action_multi_service" == "1" ]; then
action_posargs+=("${services[@]}")
elif [ "$is_docker_compose_action_multi_service" == "0" ]; then
action_posargs+=("${services[0]}") ## only the first service is the legit one
fi
## Get rid of subordinates
action_posargs=($(get_master_services "${action_posargs[@]}")) || exit 1

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