" mail_to_send
ynh_replace_string "__PRE_TAG2__" "<\pre>" mail_to_send
# Insert finishing HTML tags
echo -e "\n\n" >> mail_to_send
# Otherwise, remove tags to keep a plain text.
else
# Remove URL tags
ynh_replace_string "__URL_TAG[1,3]__" "" mail_to_send
ynh_replace_string "__URL_TAG2__" ": " mail_to_send
# Remove PRE tags
ynh_replace_string "__PRE_TAG[1-2]__" "" mail_to_send
fi
# Define binary to use for mail command
if [ -e /usr/bin/bsd-mailx ]
then
local mail_bin=/usr/bin/bsd-mailx
else
local mail_bin=/usr/bin/mail.mailutils
fi
if [ "$admin_mail_html" -eq 1 ]
then
content_type="text/html"
else
content_type="text/plain"
fi
# Send the email to the recipients
cat mail_to_send | $mail_bin -a "Content-Type: $content_type; charset=UTF-8" -s "$mail_subject" "$recipients"
}
#=================================================
ynh_maintenance_mode_ON () {
# Load value of $path_url and $domain from the config if their not set
if [ -z $path_url ]; then
path_url=$(ynh_app_setting_get $app path)
fi
if [ -z $domain ]; then
domain=$(ynh_app_setting_get $app domain)
fi
mkdir -p /var/www/html/
# Create an html to serve as maintenance notice
echo "
Your app $app is currently under maintenance!
Your app $app is currently under maintenance!
This app has been put under maintenance by your administrator at $(date)
Please wait until the maintenance operation is done. This page will be reloaded as soon as your app will be back.
" > "/var/www/html/maintenance.$app.html"
# Create a new nginx config file to redirect all access to the app to the maintenance notice instead.
echo "# All request to the app will be redirected to ${path_url}_maintenance and fall on the maintenance notice
rewrite ^${path_url}/(.*)$ ${path_url}_maintenance/? redirect;
# Use another location, to not be in conflict with the original config file
location ${path_url}_maintenance/ {
alias /var/www/html/ ;
try_files maintenance.$app.html =503;
# Include SSOWAT user panel.
include conf.d/yunohost_panel.conf.inc;
}" > "/etc/nginx/conf.d/$domain.d/maintenance.$app.conf"
# The current config file will redirect all requests to the root of the app.
# To keep the full path, we can use the following rewrite rule:
# rewrite ^${path_url}/(.*)$ ${path_url}_maintenance/\$1? redirect;
# The difference will be in the $1 at the end, which keep the following queries.
# But, if it works perfectly for a html request, there's an issue with any php files.
# This files are treated as simple files, and will be downloaded by the browser.
# Would be really be nice to be able to fix that issue. So that, when the page is reloaded after the maintenance, the user will be redirected to the real page he was.
systemctl reload nginx
}
ynh_maintenance_mode_OFF () {
# Load value of $path_url and $domain from the config if their not set
if [ -z $path_url ]; then
path_url=$(ynh_app_setting_get $app path)
fi
if [ -z $domain ]; then
domain=$(ynh_app_setting_get $app domain)
fi
# Rewrite the nginx config file to redirect from ${path_url}_maintenance to the real url of the app.
echo "rewrite ^${path_url}_maintenance/(.*)$ ${path_url}/\$1 redirect;" > "/etc/nginx/conf.d/$domain.d/maintenance.$app.conf"
systemctl reload nginx
# Sleep 4 seconds to let the browser reload the pages and redirect the user to the app.
sleep 4
# Then remove the temporary files used for the maintenance.
rm "/var/www/html/maintenance.$app.html"
rm "/etc/nginx/conf.d/$domain.d/maintenance.$app.conf"
systemctl reload nginx
}
#=================================================
# Create a changelog for an app after an upgrade from the file CHANGELOG.md.
#
# 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)
#
# The changelog is printed into the file ./changelog and ./changelog_lite
ynh_app_changelog () {
# Declare an array to define the options of this helper.
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 "$@"
format=${format:-markdown}
output=${output:-changelog}
changelog=${changelog:-../CHANGELOG.md}
local original_changelog="$changelog"
local temp_changelog="changelog_temp"
local final_changelog="$output"
if [ ! -n "$original_changelog" ]
then
echo "No changelog available..." > "$final_changelog"
echo "No changelog available..." > "${final_changelog}_lite"
return 0
fi
local current_version=$(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 "$update_version_line" ]
then
update_version_line=$(grep --max-count=1 --line-number "^##" "$original_changelog" | cut -d':' -f1)
fi
# Get the length of the complete changelog.
local changelog_length=$(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" > "$temp_changelog"
# Get the length of the troncated changelog.
changelog_length=$(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 "$previous_line" ]
then
# Remove the line if it's a title or a blank line, and the previous one was a title as well.
if ( [ "${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"
# 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 $1}') -eq 0 ]
then
echo "No changes from the changelog..." > "$final_changelog"
fi
if [ $(wc --words "${final_changelog}_lite" | awk '{print $1}') -eq 0 ]
then
echo "No significative changes from the changelog..." > "${final_changelog}_lite"
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
}