From 1638467355d266ac6dcef51355d62b3b98abdc68 Mon Sep 17 00:00:00 2001 From: Maniack Crudelis Date: Sat, 2 May 2020 00:51:36 +0200 Subject: [PATCH] Update helpers --- scripts/_common.sh | 714 ++++++++++++++++++++++++--------------------- 1 file changed, 386 insertions(+), 328 deletions(-) mode change 100644 => 100755 scripts/_common.sh diff --git a/scripts/_common.sh b/scripts/_common.sh old mode 100644 new mode 100755 index 16239d7..11c053c --- a/scripts/_common.sh +++ b/scripts/_common.sh @@ -1,44 +1,5 @@ #!/bin/bash -#================================================= -# PERSONAL HELPERS -#================================================= - -#================================================= -# BACKUP -#================================================= - -HUMAN_SIZE () { # Transforme une taille en Ko en une taille lisible pour un humain - human=$(numfmt --to=iec --from-unit=1K $1) - echo $human -} - -CHECK_SIZE () { # Vérifie avant chaque backup que l'espace est suffisant - file_to_analyse=$1 - backup_size=$(du --summarize "$file_to_analyse" | cut -f1) - free_space=$(df --output=avail "/home/yunohost.backup" | sed 1d) - - if [ $free_space -le $backup_size ] - then - ynh_print_err "Espace insuffisant pour sauvegarder $file_to_analyse." - ynh_print_err "Espace disponible: $(HUMAN_SIZE $free_space)" - ynh_die "Espace nécessaire: $(HUMAN_SIZE $backup_size)" - fi -} - -#================================================= -# PACKAGE CHECK BYPASSING... -#================================================= - -IS_PACKAGE_CHECK () { - if [ ${PACKAGE_CHECK_EXEC:-0} -eq 1 ] - then - return 0 - else - return 1 - fi -} - #================================================= # FUTUR OFFICIAL HELPERS #================================================= @@ -120,6 +81,264 @@ ynh_multimedia_addaccess () { usermod -a -G multimedia $user_name } +#================================================= + +# Get the total or free amount of RAM+swap on the system +# +# usage: ynh_get_ram [--free|--total] [--ignore_swap|--only_swap] +# | arg: -f, --free - Count free RAM+swap +# | arg: -t, --total - Count total RAM+swap +# | arg: -s, --ignore_swap - Ignore swap, consider only real RAM +# | arg: -o, --only_swap - Ignore real RAM, consider only swap +ynh_get_ram () { + # Declare an array to define the options of this helper. + local legacy_args=ftso + declare -Ar args_array=( [f]=free [t]=total [s]=ignore_swap [o]=only_swap ) + local free + local total + local ignore_swap + local only_swap + # Manage arguments with getopts + ynh_handle_getopts_args "$@" + ignore_swap=${ignore_swap:-0} + only_swap=${only_swap:-0} + free=${free:-0} + total=${total:-0} + + local total_ram=$(vmstat --stats --unit M | grep "total memory" | awk '{print $1}') + local total_swap=$(vmstat --stats --unit M | grep "total swap" | awk '{print $1}') + local total_ram_swap=$(( total_ram + total_swap )) + + local free_ram=$(vmstat --stats --unit M | grep "free memory" | awk '{print $1}') + local free_swap=$(vmstat --stats --unit M | grep "free swap" | awk '{print $1}') + local free_ram_swap=$(( free_ram + free_swap )) + + # Use the total amount of ram + if [ $free -eq 1 ] + then + # Use the total amount of free ram + local ram=$free_ram_swap + if [ $ignore_swap -eq 1 ] + then + # Use only the amount of free ram + ram=$free_ram + elif [ $only_swap -eq 1 ] + then + # Use only the amount of free swap + ram=$free_swap + fi + elif [ $total -eq 1 ] + then + local ram=$total_ram_swap + if [ $ignore_swap -eq 1 ] + then + # Use only the amount of free ram + ram=$total_ram + elif [ $only_swap -eq 1 ] + then + # Use only the amount of free swap + ram=$total_swap + fi + else + ynh_print_warn --message="You have to choose --free or --total when using ynh_get_ram" + ram=0 + fi + + echo $ram +} + +# Return 0 or 1 depending if the system has a given amount of RAM+swap free or total +# +# usage: ynh_require_ram --required=RAM required in Mb [--free|--total] [--ignore_swap|--only_swap] +# | arg: -r, --required - The amount to require, in Mb +# | arg: -f, --free - Count free RAM+swap +# | arg: -t, --total - Count total RAM+swap +# | arg: -s, --ignore_swap - Ignore swap, consider only real RAM +# | arg: -o, --only_swap - Ignore real RAM, consider only swap +ynh_require_ram () { + # Declare an array to define the options of this helper. + local legacy_args=rftso + declare -Ar args_array=( [r]=required= [f]=free [t]=total [s]=ignore_swap [o]=only_swap ) + local required + local free + local total + local ignore_swap + local only_swap + # Manage arguments with getopts + ynh_handle_getopts_args "$@" + # Dunno if that's the right way to do, but that's some black magic to be able to + # forward the bool args to ynh_get_ram easily? + # If the variable $free is not empty, set it to '--free' + free=${free:+--free} + total=${total:+--total} + ignore_swap=${ignore_swap:+--ignore_swap} + only_swap=${only_swap:+--only_swap} + + local ram=$(ynh_get_ram $free $total $ignore_swap $only_swap) + + if [ $ram -lt $required ] + then + return 1 + else + return 0 + fi +} + +#================================================= + +# Define the values to configure php-fpm +# +# usage: ynh_get_scalable_phpfpm --usage=usage --footprint=footprint [--print] +# | arg: -f, --footprint - Memory footprint of the service (low/medium/high). +# low - Less than 20Mb of ram by pool. +# medium - Between 20Mb and 40Mb of ram by pool. +# high - More than 40Mb of ram by pool. +# Or specify exactly the footprint, the load of the service as Mb by pool instead of having a standard value. +# To have this value, use the following command and stress the service. +# watch -n0.5 ps -o user,cmd,%cpu,rss -u APP +# +# | arg: -u, --usage - Expected usage of the service (low/medium/high). +# low - Personal usage, behind the sso. +# medium - Low usage, few people or/and publicly accessible. +# high - High usage, frequently visited website. +# +# | arg: -p, --print - Print the result +# +# +# +# The footprint of the service will be used to defined the maximum footprint we can allow, which is half the maximum RAM. +# So it will be used to defined 'pm.max_children' +# A lower value for the footprint will allow more children for 'pm.max_children'. And so for +# 'pm.start_servers', 'pm.min_spare_servers' and 'pm.max_spare_servers' which are defined from the +# value of 'pm.max_children' +# NOTE: 'pm.max_children' can't exceed 4 times the number of processor's cores. +# +# The usage value will defined the way php will handle the children for the pool. +# A value set as 'low' will set the process manager to 'ondemand'. Children will start only if the +# service is used, otherwise no child will stay alive. This config gives the lower footprint when the +# service is idle. But will use more proc since it has to start a child as soon it's used. +# Set as 'medium', the process manager will be at dynamic. If the service is idle, a number of children +# equal to pm.min_spare_servers will stay alive. So the service can be quick to answer to any request. +# The number of children can grow if needed. The footprint can stay low if the service is idle, but +# not null. The impact on the proc is a little bit less than 'ondemand' as there's always a few +# children already available. +# Set as 'high', the process manager will be set at 'static'. There will be always as many children as +# 'pm.max_children', the footprint is important (but will be set as maximum a quarter of the maximum +# RAM) but the impact on the proc is lower. The service will be quick to answer as there's always many +# children ready to answer. +ynh_get_scalable_phpfpm () { + local legacy_args=ufp + # Declare an array to define the options of this helper. + declare -Ar args_array=( [u]=usage= [f]=footprint= [p]=print ) + local usage + local footprint + local print + # Manage arguments with getopts + ynh_handle_getopts_args "$@" + # Set all characters as lowercase + footprint=${footprint,,} + usage=${usage,,} + print=${print:-0} + + if [ "$footprint" = "low" ] + then + footprint=20 + elif [ "$footprint" = "medium" ] + then + footprint=35 + elif [ "$footprint" = "high" ] + then + footprint=50 + fi + + # Define the way the process manager handle child processes. + if [ "$usage" = "low" ] + then + php_pm=ondemand + elif [ "$usage" = "medium" ] + then + php_pm=dynamic + elif [ "$usage" = "high" ] + then + php_pm=static + else + ynh_die --message="Does not recognize '$usage' as an usage value." + fi + + # Get the total of RAM available, except swap. + local max_ram=$(ynh_get_ram --total --ignore_swap) + + at_least_one() { + # Do not allow value below 1 + if [ $1 -le 0 ] + then + echo 1 + else + echo $1 + fi + } + + # Define pm.max_children + # The value of pm.max_children is the total amount of ram divide by 2 and divide again by the footprint of a pool for this app. + # So if php-fpm start the maximum of children, it won't exceed half of the ram. + php_max_children=$(( $max_ram / 2 / $footprint )) + # If process manager is set as static, use half less children. + # Used as static, there's always as many children as the value of pm.max_children + if [ "$php_pm" = "static" ] + then + php_max_children=$(( $php_max_children / 2 )) + fi + php_max_children=$(at_least_one $php_max_children) + + # To not overload the proc, limit the number of children to 4 times the number of cores. + local core_number=$(nproc) + local max_proc=$(( $core_number * 4 )) + if [ $php_max_children -gt $max_proc ] + then + php_max_children=$max_proc + fi + + if [ "$php_pm" = "dynamic" ] + then + # Define pm.start_servers, pm.min_spare_servers and pm.max_spare_servers for a dynamic process manager + php_min_spare_servers=$(( $php_max_children / 8 )) + php_min_spare_servers=$(at_least_one $php_min_spare_servers) + + php_max_spare_servers=$(( $php_max_children / 2 )) + php_max_spare_servers=$(at_least_one $php_max_spare_servers) + + php_start_servers=$(( $php_min_spare_servers + ( $php_max_spare_servers - $php_min_spare_servers ) /2 )) + php_start_servers=$(at_least_one $php_start_servers) + else + php_min_spare_servers=0 + php_max_spare_servers=0 + php_start_servers=0 + fi + + if [ $print -eq 1 ] + then + ynh_debug --message="Footprint=${footprint}Mb by pool." + ynh_debug --message="Process manager=$php_pm" + ynh_debug --message="Max RAM=${max_ram}Mb" + if [ "$php_pm" != "static" ]; then + ynh_debug --message="\nMax estimated footprint=$(( $php_max_children * $footprint ))" + ynh_debug --message="Min estimated footprint=$(( $php_min_spare_servers * $footprint ))" + fi + if [ "$php_pm" = "dynamic" ]; then + ynh_debug --message="Estimated average footprint=$(( $php_max_spare_servers * $footprint ))" + elif [ "$php_pm" = "static" ]; then + ynh_debug --message="Estimated footprint=$(( $php_max_children * $footprint ))" + fi + ynh_debug --message="\nRaw php-fpm values:" + ynh_debug --message="pm.max_children = $php_max_children" + if [ "$php_pm" = "dynamic" ]; then + ynh_debug --message="pm.start_servers = $php_start_servers" + ynh_debug --message="pm.min_spare_servers = $php_min_spare_servers" + ynh_debug --message="pm.max_spare_servers = $php_max_spare_servers" + fi + fi +} + #================================================= # EXPERIMENTAL HELPERS #================================================= @@ -265,30 +484,6 @@ __PRE_TAG1__$(yunohost tools diagnosis | grep -B 100 "services:" | sed '/service #================================================= -ynh_debian_release () { - lsb_release --codename --short -} - -is_stretch () { - if [ "$(ynh_debian_release)" == "stretch" ] - then - return 0 - else - return 1 - fi -} - -is_jessie () { - if [ "$(ynh_debian_release)" == "jessie" ] - then - return 0 - else - return 1 - fi -} - -#================================================= - ynh_maintenance_mode_ON () { # Load value of $path_url and $domain from the config if their not set if [ -z $path_url ]; then @@ -370,290 +565,153 @@ ynh_maintenance_mode_OFF () { #================================================= -# Create a changelog for an app after an upgrade. +# Create a changelog for an app after an upgrade from the file CHANGELOG.md. # -# The changelog is printed into the file ./changelog for the time of the upgrade. +# usage: ynh_app_changelog [--format=markdown/html/plain] [--output=changelog_file] --changelog=changelog_source] +# | arg: -f --format= - Format in which the changelog will be printed +# markdown: Default format. +# html: Turn urls into html format. +# plain: Plain text changelog +# | arg: -o --output= - Output file for the changelog file (Default ./changelog) +# | arg: -c --changelog= - CHANGELOG.md source (Default ../CHANGELOG.md) # -# In order to create a changelog, ynh_app_changelog will get info from /etc/yunohost/apps/$app/status.json -# In order to find the current commit use by the app. -# The remote repository, and the branch. -# The changelog will be only the commits since the current revision. -# -# Because of the need of those info, ynh_app_changelog works only -# with apps that have been installed from a list. -# -# usage: ynh_app_changelog +# The changelog is printed into the file ./changelog and ./changelog_lite ynh_app_changelog () { - get_value_from_settings () - { - local value="$1" - # Extract a value from the status.json file of an installed app. - - grep "$value\": \"" /etc/yunohost/apps/$app/status.json | sed "s/.*$value\": \"\([^\"]*\).*/\1/" - } - - local current_revision="$(get_value_from_settings revision)" - local repo="$(get_value_from_settings url)" - local branch="$(get_value_from_settings branch)" - # ynh_app_changelog works only with an app installed from a list. - if [ -z "$current_revision" ] || [ -z "$repo" ] || [ -z "$branch" ] - then - ynh_print_warn "Unable to build the changelog..." - touch changelog - return 0 - fi - - # Fetch the history of the repository, without cloning it - mkdir git_history - (cd git_history - ynh_exec_warn_less git init - ynh_exec_warn_less git remote add -f origin $repo - # Get the line of the current commit of the installed app in the history. - local line_to_head=$(git log origin/$branch --pretty=oneline | grep --line-number "$current_revision" | cut -d':' -f1) - # Cut the history before the current commit, to keep only newer commits. - # Then use sed to reorganise each lines and have a nice list of commits since the last upgrade. - # This list is redirected into the file changelog - git log origin/$branch --pretty=oneline | head --lines=$(($line_to_head-1)) | sed 's/^\([[:alnum:]]*\)\(.*\)/*(\1) -> \2/g' > ../changelog) - # Remove 'Merge pull request' commits - sed -i '/Merge pull request #[[:digit:]]* from/d' changelog - # As well as conflict resolving commits - sed -i '/Merge branch .* into/d' changelog - - # Get the value of admin_mail_html - admin_mail_html=$(ynh_app_setting_get $app admin_mail_html) - admin_mail_html="${admin_mail_html:-0}" - - # If a html email is required. Apply html to the changelog. - if [ "$admin_mail_html" -eq 1 ] - then - sed -in-place "s@\*(\([[:alnum:]]*\)) -> \(.*\)@* __URL_TAG1__\2__URL_TAG2__${repo}/commit/\1__URL_TAG3__@g" changelog - fi -} - -#================================================= - -# Check the amount of available RAM -# -# usage: ynh_check_ram [--required=RAM required in Mb] [--no_swap|--only_swap] [--free_ram] -# | arg: -r, --required= - Amount of RAM required in Mb. The helper will return 0 is there's enough RAM, or 1 otherwise. -# If --required isn't set, the helper will print the amount of RAM, in Mb. -# | arg: -s, --no_swap - Ignore swap -# | arg: -o, --only_swap - Ignore real RAM, consider only swap. -# | arg: -f, --free_ram - Count only free RAM, not the total amount of RAM available. -ynh_check_ram () { - # Declare an array to define the options of this helper. - declare -Ar args_array=( [r]=required= [s]=no_swap [o]=only_swap [f]=free_ram ) - local required - local no_swap - local only_swap - # Manage arguments with getopts - ynh_handle_getopts_args "$@" - required=${required:-} - no_swap=${no_swap:-0} - only_swap=${only_swap:-0} - - local total_ram=$(vmstat --stats --unit M | grep "total memory" | awk '{print $1}') - local total_swap=$(vmstat --stats --unit M | grep "total swap" | awk '{print $1}') - local total_ram_swap=$(( total_ram + total_swap )) - - local free_ram=$(vmstat --stats --unit M | grep "free memory" | awk '{print $1}') - local free_swap=$(vmstat --stats --unit M | grep "free swap" | awk '{print $1}') - local free_ram_swap=$(( free_ram + free_swap )) - - # Use the total amount of ram - local ram=$total_ram_swap - if [ $free_ram -eq 1 ] - then - # Use the total amount of free ram - ram=$free_ram_swap - if [ $no_swap -eq 1 ] - then - # Use only the amount of free ram - ram=$free_ram - elif [ $only_swap -eq 1 ] - then - # Use only the amount of free swap - ram=$free_swap - fi - else - if [ $no_swap -eq 1 ] - then - # Use only the amount of free ram - ram=$total_ram - elif [ $only_swap -eq 1 ] - then - # Use only the amount of free swap - ram=$total_swap - fi - fi - - if [ -n "$required" ] - then - # Return 1 if the amount of ram isn't enough. - if [ $ram -lt $required ] - then - return 1 - else - return 0 - fi - - # If no RAM is required, return the amount of available ram. - else - echo $ram - fi -} - -#================================================= - -# Define the values to configure php-fpm -# -# usage: ynh_get_scalable_phpfpm --usage=usage --footprint=footprint [--print] -# | arg: -f, --footprint - Memory footprint of the service (low/medium/high). -# low - Less than 20Mb of ram by pool. -# medium - Between 20Mb and 40Mb of ram by pool. -# high - More than 40Mb of ram by pool. -# Or specify exactly the footprint, the load of the service as Mb by pool instead of having a standard value. -# To have this value, use the following command and stress the service. -# watch -n0.5 ps -o user,cmd,%cpu,rss -u APP -# -# | arg: -u, --usage - Expected usage of the service (low/medium/high). -# low - Personal usage, behind the sso. -# medium - Low usage, few people or/and publicly accessible. -# high - High usage, frequently visited website. -# -# | arg: -p, --print - Print the result -# -# -# -# The footprint of the service will be used to defined the maximum footprint we can allow, which is half the maximum RAM. -# So it will be used to defined 'pm.max_children' -# A lower value for the footprint will allow more children for 'pm.max_children'. And so for -# 'pm.start_servers', 'pm.min_spare_servers' and 'pm.max_spare_servers' which are defined from the -# value of 'pm.max_children' -# NOTE: 'pm.max_children' can't exceed 4 times the number of processor's cores. -# -# The usage value will defined the way php will handle the children for the pool. -# A value set as 'low' will set the process manager to 'ondemand'. Children will start only if the -# service is used, otherwise no child will stay alive. This config gives the lower footprint when the -# service is idle. But will use more proc since it has to start a child as soon it's used. -# Set as 'medium', the process manager will be at dynamic. If the service is idle, a number of children -# equal to pm.min_spare_servers will stay alive. So the service can be quick to answer to any request. -# The number of children can grow if needed. The footprint can stay low if the service is idle, but -# not null. The impact on the proc is a little bit less than 'ondemand' as there's always a few -# children already available. -# Set as 'high', the process manager will be set at 'static'. There will be always as many children as -# 'pm.max_children', the footprint is important (but will be set as maximum a quarter of the maximum -# RAM) but the impact on the proc is lower. The service will be quick to answer as there's always many -# children ready to answer. -ynh_get_scalable_phpfpm () { - local legacy_args=ufp # Declare an array to define the options of this helper. - declare -Ar args_array=( [u]=usage= [f]=footprint= [p]=print ) - local usage - local footprint - local print + local legacy_args=foc + declare -Ar args_array=( [f]=format= [o]=output= [c]=changelog= ) + local format + local output + local changelog # Manage arguments with getopts ynh_handle_getopts_args "$@" - # Set all characters as lowercase - footprint=${footprint,,} - usage=${usage,,} - print=${print:-0} + format=${format:-markdown} + output=${output:-changelog} + changelog=${changelog:-../CHANGELOG.md} - if [ "$footprint" = "low" ] + local original_changelog="$changelog" + local temp_changelog="changelog_temp" + local final_changelog="$output" + + if [ ! -n "$original_changelog" ] then - footprint=20 - elif [ "$footprint" = "medium" ] - then - footprint=35 - elif [ "$footprint" = "high" ] - then - footprint=50 + echo "No changelog available..." > "$final_changelog" + echo "No changelog available..." > "${final_changelog}_lite" + return 0 fi - # Define the way the process manager handle child processes. - if [ "$usage" = "low" ] + local current_version=$(ynh_read_manifest --manifest="/etc/yunohost/apps/$YNH_APP_INSTANCE_NAME/manifest.json" --manifest_key="version") + local update_version=$(ynh_read_manifest --manifest="../manifest.json" --manifest_key="version") + + # Get the line of the version to update to into the changelog + local update_version_line=$(grep --max-count=1 --line-number "^## \[$update_version" "$original_changelog" | cut -d':' -f1) + # If there's no entry for this version yet into the changelog + # Get the first available version + if [ -z "$update_version_line" ] then - php_pm=ondemand - elif [ "$usage" = "medium" ] - then - php_pm=dynamic - elif [ "$usage" = "high" ] - then - php_pm=static - else - ynh_die --message="Does not recognize '$usage' as an usage value." + update_version_line=$(grep --max-count=1 --line-number "^##" "$original_changelog" | cut -d':' -f1) fi - # Get the total of RAM available, except swap. - local max_ram=$(ynh_check_ram --no_swap) + # Get the length of the complete changelog. + local changelog_length=$(wc --lines "$original_changelog" | awk '{print $1}') + # Cut the file before the version to update to. + tail --lines=$(( $changelog_length - $update_version_line + 1 )) "$original_changelog" > "$temp_changelog" - less0() { - # Do not allow value below 1 - if [ $1 -le 0 ] + # Get the length of the troncated changelog. + changelog_length=$(wc --lines "$temp_changelog" | awk '{print $1}') + # Get the line of the current version into the changelog + # Keep only the last line found + local current_version_line=$(grep --line-number "^## \[$current_version" "$temp_changelog" | cut -d':' -f1 | tail --lines=1) + # If there's no entry for this version into the changelog + # Get the last available version + if [ -z "$current_version_line" ] + then + current_version_line=$(grep --line-number "^##" "$original_changelog" | cut -d':' -f1 | tail --lines=1) + fi + # Cut the file before the current version. + # Then grep the previous version into the changelog to get the line number of the previous version + local previous_version_line=$(tail --lines=$(( $changelog_length - $current_version_line )) \ + "$temp_changelog" | grep --max-count=1 --line-number "^## " | cut -d':' -f1) + # If there's no previous version into the changelog + # Go until the end of the changelog + if [ -z "$previous_version_line" ] + then + previous_version_line=$changelog_length + fi + + # Cut the file after the previous version to keep only the changelog between the current version and the version to update to. + head --lines=$(( $current_version_line + $previous_version_line - 1 )) "$temp_changelog" | tee "$final_changelog" + + if [ "$format" = "html" ] + then + # Replace markdown links by html links + ynh_replace_string --match_string="\[\(.*\)\](\(.*\)))" --replace_string="\1)" --target_file="$final_changelog" + ynh_replace_string --match_string="\[\(.*\)\](\(.*\))" --replace_string="\1" --target_file="$final_changelog" + elif [ "$format" = "plain" ] + then + # Change title format. + ynh_replace_string --match_string="^##.*\[\(.*\)\](\(.*\)) - \(.*\)$" --replace_string="## \1 (\3) - \2" --target_file="$final_changelog" + # Change modifications lines format. + ynh_replace_string --match_string="^\([-*]\).*\[\(.*\)\]\(.*\)" --replace_string="\1 \2 \3" --target_file="$final_changelog" + fi + # else markdown. As the file is already in markdown, nothing to do. + + # Keep only important changes into the changelog + # Remove all minor changes + sed '/^-/d' "$final_changelog" > "${final_changelog}_lite" + # Remove all blank lines (to keep a clear workspace) + sed --in-place '/^$/d' "${final_changelog}_lite" + # Add a blank line at the end + echo "" >> "${final_changelog}_lite" + + # Clean titles if there's no significative changes + local line + local previous_line="" + while read line <&3 + do + if [ -n "$previous_line" ] then - echo 1 - else - echo $1 + # Remove the line if it's a title or a blank line, and the previous one was a title as well. + if ( [ "${line:0:1}" = "#" ] || [ ${#line} -eq 0 ] ) && [ "${previous_line:0:1}" = "#" ] + then + ynh_replace_special_string --match_string="${previous_line//[/.}" --replace_string="" --target_file="${final_changelog}_lite" + fi fi - } + previous_line="$line" + done 3< "${final_changelog}_lite" - # Define pm.max_children - # The value of pm.max_children is the total amount of ram divide by 2 and divide again by the footprint of a pool for this app. - # So if php-fpm start the maximum of children, it won't exceed half of the ram. - php_max_children=$(( $max_ram / 2 / $footprint )) - # If process manager is set as static, use half less children. - # Used as static, there's always as many children as the value of pm.max_children - if [ "$php_pm" = "static" ] + # Remove all blank lines again + sed --in-place '/^$/d' "${final_changelog}_lite" + + # Restore changelog format with blank lines + ynh_replace_string --match_string="^##.*" --replace_string="\n\n&\n" --target_file="${final_changelog}_lite" + # Remove the 2 first blank lines + sed --in-place '1,2d' "${final_changelog}_lite" + # Add a blank line at the end + echo "" >> "${final_changelog}_lite" + + # If changelog are empty, add an info + if [ $(wc --words "$final_changelog" | awk '{print $1}') -eq 0 ] then - php_max_children=$(( $php_max_children / 2 )) + echo "No changes from the changelog..." > "$final_changelog" fi - php_max_children=$(less0 $php_max_children) - - # To not overload the proc, limit the number of children to 4 times the number of cores. - local core_number=$(nproc) - local max_proc=$(( $core_number * 4 )) - if [ $php_max_children -gt $max_proc ] + if [ $(wc --words "${final_changelog}_lite" | awk '{print $1}') -eq 0 ] then - php_max_children=$max_proc - fi - - if [ "$php_pm" = "dynamic" ] - then - # Define pm.start_servers, pm.min_spare_servers and pm.max_spare_servers for a dynamic process manager - php_min_spare_servers=$(( $php_max_children / 8 )) - php_min_spare_servers=$(less0 $php_min_spare_servers) - - php_max_spare_servers=$(( $php_max_children / 2 )) - php_max_spare_servers=$(less0 $php_max_spare_servers) - - php_start_servers=$(( $php_min_spare_servers + ( $php_max_spare_servers - $php_min_spare_servers ) /2 )) - php_start_servers=$(less0 $php_start_servers) - else - php_min_spare_servers=0 - php_max_spare_servers=0 - php_start_servers=0 - fi - - if [ $print -eq 1 ] - then - ynh_debug --message="Footprint=${footprint}Mb by pool." - ynh_debug --message="Process manager=$php_pm" - ynh_debug --message="Max RAM=${max_ram}Mb" - if [ "$php_pm" != "static" ]; then - ynh_debug --message="\nMax estimated footprint=$(( $php_max_children * $footprint ))" - ynh_debug --message="Min estimated footprint=$(( $php_min_spare_servers * $footprint ))" - fi - if [ "$php_pm" = "dynamic" ]; then - ynh_debug --message="Estimated average footprint=$(( $php_max_spare_servers * $footprint ))" - elif [ "$php_pm" = "static" ]; then - ynh_debug --message="Estimated footprint=$(( $php_max_children * $footprint ))" - fi - ynh_debug --message="\nRaw php-fpm values:" - ynh_debug --message="pm.max_children = $php_max_children" - if [ "$php_pm" = "dynamic" ]; then - ynh_debug --message="pm.start_servers = $php_start_servers" - ynh_debug --message="pm.min_spare_servers = $php_min_spare_servers" - ynh_debug --message="pm.max_spare_servers = $php_max_spare_servers" - fi + echo "No significative changes from the changelog..." > "${final_changelog}_lite" fi } + +#================================================= + +# Execute a command as another user +# usage: exec_as USER COMMAND [ARG ...] +ynh_exec_as() { + local USER=$1 + shift 1 + + if [[ $USER = $(whoami) ]]; then + eval "$@" + else + sudo -u "$USER" "$@" + fi +}