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rss-bridge_ynh/scripts/_common.sh
2020-02-27 20:50:20 +01:00

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#
# Common variables
#
# Package version
VERSION="2020-02-26"
# Full sources tarball URL
SOURCE_URL="https://github.com/RSS-Bridge/rss-bridge/archive/${VERSION}.tar.gz"
# Full sources tarball checksum
SOURCE_SHA256="f4dd0dc07828cca0c533eb112134f2a29efe1e083d2e92f4c474e961af62b391"
# App package root directory should be the parent folder
PKGDIR=$(cd ../; pwd)
#
# Common helpers
#
# Source app helpers
. /usr/share/yunohost/helpers
# Execute a command as another user
# usage: exec_as USER COMMAND [ARG ...]
exec_as() {
local USER=$1
shift 1
if [[ $USER = $(whoami) ]]; then
eval $@
else
# use sudo twice to be root and be allowed to use another user
sudo sudo -u "$USER" "$@"
fi
}
# Download and extract sources to the given directory
# usage: extract_sources DESTDIR
extract_sources() {
local DESTDIR=$1
# retrieve and extract Roundcube tarball
wb_tarball="/tmp/sources.tar.gz"
rm -f "$wb_tarball"
wget -q -O "$wb_tarball" "$SOURCE_URL" \
|| ynh_die "Unable to download sources tarball"
echo "$SOURCE_SHA256 $wb_tarball" | sha256sum -c >/dev/null \
|| ynh_die "Invalid checksum of downloaded tarball"
tar xf "$wb_tarball" -C "$DESTDIR" --strip-components 1 \
|| ynh_die "Unable to extract sources tarball"
rm -f "$wb_tarball"
}
HUMAN_SIZE () { # Transforms a Kb-based size to a human-readable size
human=$(numfmt --to=iec --from-unit=1K $1)
echo $human
}
WARNING () { # Print on error output
$@ >&2
}
QUIET () { # redirect standard output to /dev/null
$@ > /dev/null
}
CHECK_SIZE () { # Check if enough disk space available on backup storage
file_to_analyse=$1
backup_size=$(sudo du --summarize "$file_to_analyse" | cut -f1)
free_space=$(sudo df --output=avail "/home/yunohost.backup" | sed 1d)
if [ $free_space -le $backup_size ]
then
WARNING echo "Not enough backup disk space for: $file_to_analyse."
WARNING echo "Space available: $(HUMAN_SIZE $free_space)"
ynh_die "Space needed: $(HUMAN_SIZE $backup_size)"
fi
}
CHECK_USER () { # Check user validity
# $1 = User
ynh_user_exists "$1" || ynh_die "Wrong user"
}
CHECK_DOMAINPATH () { # Check domain/path availability
sudo yunohost app checkurl $domain$path_url -a $app
}
CHECK_FINALPATH () { # Check if destination directory already exists
final_path="/var/www/$app"
test ! -e "$final_path" || ynh_die "This path already contains a folder"
}
#=================================================
# FUTURE YUNOHOST HELPERS - TO BE REMOVED LATER
#=================================================
# Normalize the url path syntax
# Delete a file checksum from the app settings
#
# $app should be defined when calling this helper
#
# usage: ynh_remove_file_checksum file
# | arg: file - The file for which the checksum will be deleted
ynh_delete_file_checksum () {
local checksum_setting_name=checksum_${1//[\/ ]/_} # Replace all '/' and ' ' by '_'
ynh_app_setting_delete $app $checksum_setting_name
}