[fix/enh] Use local variables

data/helpers.d/backend

@@ -22,12 +22,12 @@ ynh_use_logrotate () {
 	fi
 	if [ $# -gt 0 ]; then
 		if [ "$(echo ${1##*.})" == "log" ]; then	# Keep only the extension to check if it's a logfile
-			logfile=$1	# In this case, focus logrotate on the logfile
+			local logfile=$1	# In this case, focus logrotate on the logfile
 		else
-			logfile=$1/*.log	# Else, uses the directory and all logfile into it.
+			local logfile=$1/*.log	# Else, uses the directory and all logfile into it.
 		fi
 	else
-		logfile="/var/log/${app}/*.log" # Without argument, use a defaut directory in /var/log
+		local logfile="/var/log/${app}/*.log" # Without argument, use a defaut directory in /var/log
 	fi
 	cat > ./${app}-logrotate << EOF	# Build a config file for logrotate
 $logfile {
@@ -97,7 +97,7 @@ ynh_add_systemd_config () {
 #
 # usage: ynh_remove_systemd_config
 ynh_remove_systemd_config () {
-	finalsystemdconf="/etc/systemd/system/$app.service"
+	local finalsystemdconf="/etc/systemd/system/$app.service"
 	if [ -e "$finalsystemdconf" ]; then
 		sudo systemctl stop $app
 		sudo systemctl disable $app
@@ -124,7 +124,7 @@ ynh_add_nginx_config () {
 	# Substitute in a nginx config file only if the variable is not empty
 	if test -n "${path_url:-}"; then
 		# path_url_slash_less is path_url, or a blank value if path_url is only '/'
-		path_url_slash_less=${path_url%/}
+		local path_url_slash_less=${path_url%/}
 		ynh_replace_string "__PATH__/" "$path_url_slash_less/" "$finalnginxconf"
 		ynh_replace_string "__PATH__" "$path_url" "$finalnginxconf"
 	fi

data/helpers.d/filesystem

@@ -180,12 +180,12 @@ ynh_restore_file () {
     local ARCHIVE_PATH="$YNH_CWD${ORIGIN_PATH}"
     # Default value for DEST_PATH = /$ORIGIN_PATH
     local DEST_PATH="${2:-$ORIGIN_PATH}"
-    
+
     # If ARCHIVE_PATH doesn't exist, search for a corresponding path in CSV
     if [ ! -d "$ARCHIVE_PATH" ] && [ ! -f "$ARCHIVE_PATH" ] && [ ! -L "$ARCHIVE_PATH" ]; then
         ARCHIVE_PATH="$YNH_BACKUP_DIR/$(_get_archive_path \"$ORIGIN_PATH\")"
     fi
-    
+
     # Restore ORIGIN_PATH into DEST_PATH
     mkdir -p $(dirname "$DEST_PATH")
 
@@ -258,7 +258,7 @@ ynh_backup_if_checksum_is_different () {
 	then	# Proceed only if a value was stored into the app settings
 		if ! echo "$checksum_value $file" | sudo md5sum -c --status
 		then	# If the checksum is now different
-			backup_file="/home/yunohost.conf/backup/$file.backup.$(date '+%Y%m%d.%H%M%S')"
+			local backup_file="/home/yunohost.conf/backup/$file.backup.$(date '+%Y%m%d.%H%M%S')"
 			sudo mkdir -p "$(dirname "$backup_file")"
 			sudo cp -a "$file" "$backup_file"	# Backup the current file
 			echo "File $file has been manually modified since the installation or last upgrade. So it has been duplicated in $backup_file" >&2
@@ -272,8 +272,8 @@ ynh_backup_if_checksum_is_different () {
 # usage: ynh_secure_remove path_to_remove
 # | arg: path_to_remove - File or directory to remove
 ynh_secure_remove () {
-	path_to_remove=$1
-	forbidden_path=" \
+	local path_to_remove=$1
+	local forbidden_path=" \
 	/var/www \
 	/home/yunohost.app"
 

data/helpers.d/ip

@@ -8,12 +8,12 @@
 ynh_validate_ip()
 {
   # http://stackoverflow.com/questions/319279/how-to-validate-ip-address-in-python#319298
-  
-  IP_ADDRESS_FAMILY=$1
-  IP_ADDRESS=$2
-  
+
+  local IP_ADDRESS_FAMILY=$1
+  local IP_ADDRESS=$2
+
   [ "$IP_ADDRESS_FAMILY" == "4" ] || [ "$IP_ADDRESS_FAMILY" == "6" ] || return 1
-  
+
   python /dev/stdin << EOF
 import socket
 import sys

data/helpers.d/mysql

@@ -40,9 +40,9 @@ ynh_mysql_execute_file_as_root() {
 # | arg: user - the user to grant privilegies
 # | arg: pwd - the password to identify user by
 ynh_mysql_create_db() {
-    db=$1
+    local db=$1
 
-    sql="CREATE DATABASE ${db};"
+    local sql="CREATE DATABASE ${db};"
 
     # grant all privilegies to user
     if [[ $# -gt 1 ]]; then
@@ -159,6 +159,6 @@ ynh_mysql_remove_db () {
 # | arg: name - name to correct/sanitize
 # | ret: the corrected name
 ynh_sanitize_dbid () {
-	dbid=${1//[-.]/_}	# We should avoid having - and . in the name of databases. They are replaced by _
+	local dbid=${1//[-.]/_}	# We should avoid having - and . in the name of databases. They are replaced by _
 	echo $dbid
 }

data/helpers.d/network

@@ -11,7 +11,7 @@
 # usage: ynh_normalize_url_path path_to_normalize
 # | arg: url_path_to_normalize - URL path to normalize before using it
 ynh_normalize_url_path () {
-	path_url=$1
+	local path_url=$1
 	test -n "$path_url" || ynh_die "ynh_normalize_url_path expect a URL path as first argument and received nothing."
 	if [ "${path_url:0:1}" != "/" ]; then    # If the first character is not a /
 		path_url="/$path_url"    # Add / at begin of path variable
@@ -29,7 +29,7 @@ ynh_normalize_url_path () {
 # usage: ynh_find_port begin_port
 # | arg: begin_port - port to start to search
 ynh_find_port () {
-	port=$1
+	local port=$1
 	test -n "$port" || ynh_die "The argument of ynh_find_port must be a valid port."
 	while netcat -z 127.0.0.1 $port       # Check if the port is free
 	do

data/helpers.d/package

@@ -80,15 +80,15 @@ ynh_package_autopurge() {
 # usage: ynh_package_install_from_equivs controlfile
 # | arg: controlfile - path of the equivs control file
 ynh_package_install_from_equivs () {
-    controlfile=$1
+    local controlfile=$1
 
     # Check if the equivs package is installed. Or install it.
     ynh_package_is_installed 'equivs' \
         || ynh_package_install equivs
 
     # retrieve package information
-    pkgname=$(grep '^Package: ' $controlfile | cut -d' ' -f 2)	# Retrieve the name of the debian package
-    pkgversion=$(grep '^Version: ' $controlfile | cut -d' ' -f 2)	# And its version number
+    local pkgname=$(grep '^Package: ' $controlfile | cut -d' ' -f 2)	# Retrieve the name of the debian package
+    local pkgversion=$(grep '^Version: ' $controlfile | cut -d' ' -f 2)	# And its version number
     [[ -z "$pkgname" || -z "$pkgversion" ]] \
         && echo "Invalid control file" && exit 1	# Check if this 2 variables aren't empty.
 
@@ -96,7 +96,7 @@ ynh_package_install_from_equivs () {
     ynh_package_update
 
     # Build and install the package
-    TMPDIR=$(mktemp -d)
+    local TMPDIR=$(mktemp -d)
     # Note that the cd executes into a sub shell
     # Create a fake deb package with equivs-build and the given control file
     # Install the fake package without its dependencies with dpkg
@@ -118,13 +118,13 @@ ynh_package_install_from_equivs () {
 # usage: ynh_install_app_dependencies dep [dep [...]]
 # | arg: dep - the package name to install in dependence
 ynh_install_app_dependencies () {
-    dependencies=$@
-    manifest_path="../manifest.json"
+    local dependencies=$@
+    local manifest_path="../manifest.json"
     if [ ! -e "$manifest_path" ]; then
     	manifest_path="../settings/manifest.json"	# Into the restore script, the manifest is not at the same place
     fi
-    version=$(grep '\"version\": ' "$manifest_path" | cut -d '"' -f 4)	# Retrieve the version number in the manifest file.
-    dep_app=${app//_/-}	# Replace all '_' by '-'
+    local version=$(grep '\"version\": ' "$manifest_path" | cut -d '"' -f 4)	# Retrieve the version number in the manifest file.
+    local dep_app=${app//_/-}	# Replace all '_' by '-'
 
     cat > /tmp/${dep_app}-ynh-deps.control << EOF	# Make a control file for equivs-build
 Section: misc
@@ -148,6 +148,6 @@ EOF
 #
 # usage: ynh_remove_app_dependencies
 ynh_remove_app_dependencies () {
-    dep_app=${app//_/-}	# Replace all '_' by '-'
+    local dep_app=${app//_/-}	# Replace all '_' by '-'
     ynh_package_autopurge ${dep_app}-ynh-deps	# Remove the fake package and its dependencies if they not still used.
 }

data/helpers.d/print

@@ -10,10 +10,10 @@ ynh_die() {
 # Simply duplicate the log, execute the yunohost command and replace the log without the result of this command
 # It's a very badly hack...
 ynh_no_log() {
-  ynh_cli_log=/var/log/yunohost/yunohost-cli.log
+  local ynh_cli_log=/var/log/yunohost/yunohost-cli.log
   sudo cp -a ${ynh_cli_log} ${ynh_cli_log}-move
   eval $@
-  exit_code=$?
+  local exit_code=$?
   sudo mv ${ynh_cli_log}-move ${ynh_cli_log}
   return $?
 }

data/helpers.d/string

@@ -26,13 +26,13 @@ ynh_replace_string () {
 	local replace_string=$2
 	local workfile=$3
 
-        # Escape any backslash to preserve them as simple backslash.
-        match_string=${match_string//\\/"\\\\"}
-        replace_string=${replace_string//\\/"\\\\"}
+	# Escape any backslash to preserve them as simple backslash.
+	match_string=${match_string//\\/"\\\\"}
+	replace_string=${replace_string//\\/"\\\\"}
 
-        # Escape the & character, who has a special function in sed.
-        match_string=${match_string//&/"\&"}
-        replace_string=${replace_string//&/"\&"}
+	# Escape the & character, who has a special function in sed.
+	match_string=${match_string//&/"\&"}
+	replace_string=${replace_string//&/"\&"}
 
 	# Escape the delimiter if it's in the string.
 	match_string=${match_string//${delimit}/"\\${delimit}"}

data/helpers.d/system

@@ -14,7 +14,7 @@
 # Usage: ynh_exit_properly is used only by the helper ynh_abort_if_errors.
 # You must not use it directly.
 ynh_exit_properly () {
-	exit_code=$?
+	local exit_code=$?
 	if [ "$exit_code" -eq 0 ]; then
 			exit 0	# Exit without error if the script ended correctly
 	fi

data/helpers.d/user

@@ -48,9 +48,9 @@ ynh_system_user_create () {
 	if ! ynh_system_user_exists "$1"	# Check if the user exists on the system
 	then	# If the user doesn't exist
 		if [ $# -ge 2 ]; then	# If a home dir is mentioned
-			user_home_dir="-d $2"
+			local user_home_dir="-d $2"
 		else
-			user_home_dir="--no-create-home"
+			local user_home_dir="--no-create-home"
 		fi
 		sudo useradd $user_home_dir --system --user-group $1 --shell /usr/sbin/nologin || ynh_die "Unable to create $1 system account"
 	fi

data/helpers.d/utils

@@ -5,9 +5,9 @@
 # usage: ynh_get_plain_key key [subkey [subsubkey ...]]
 # | ret: string - the key's value
 ynh_get_plain_key() {
-    prefix="#"
-    founded=0
-    key=$1
+    local prefix="#"
+    local founded=0
+    local key=$1
     shift
     while read line; do
         if [[ "$founded" == "1" ]] ; then
@@ -36,7 +36,7 @@ ynh_get_plain_key() {
 #
 ynh_restore_upgradebackup () {
 	echo "Upgrade failed." >&2
-	app_bck=${app//_/-}	# Replace all '_' by '-'
+	local app_bck=${app//_/-}	# Replace all '_' by '-'
 	
         # Check if an existing backup can be found before removing and restoring the application.
 	if sudo yunohost backup list | grep -q $app_bck-pre-upgrade$backup_number
@@ -64,9 +64,9 @@ ynh_backup_before_upgrade () {
 		echo "This app doesn't have any backup script." >&2
 		return
 	fi
-	backup_number=1
-	old_backup_number=2
-	app_bck=${app//_/-}	# Replace all '_' by '-'
+	local backup_number=1
+	local old_backup_number=2
+	local app_bck=${app//_/-}	# Replace all '_' by '-'
 
 	# Check if a backup already exists with the prefix 1
 	if sudo yunohost backup list | grep -q $app_bck-pre-upgrade1
@@ -94,7 +94,7 @@ ynh_backup_before_upgrade () {
 # Download, check integrity, uncompress and patch the source from app.src
 #
 # The file conf/app.src need to contains:
-# 
+#
 # SOURCE_URL=Address to download the app archive
 # SOURCE_SUM=Control sum
 # # (Optional) Program to check the integrity (sha256sum, md5sum...)
@@ -113,9 +113,9 @@ ynh_backup_before_upgrade () {
 # Details:
 # This helper downloads sources from SOURCE_URL if there is no local source
 # archive in /opt/yunohost-apps-src/APP_ID/SOURCE_FILENAME
-# 
+#
 # Next, it checks the integrity with "SOURCE_SUM_PRG -c --status" command.
-# 
+#
 # If it's ok, the source archive will be uncompressed in $dest_dir. If the
 # SOURCE_IN_SUBDIR is true, the first level directory of the archive will be
 # removed.
@@ -130,7 +130,7 @@ ynh_backup_before_upgrade () {
 ynh_setup_source () {
     local dest_dir=$1
     local src_id=${2:-app} # If the argument is not given, source_id equals "app"
-    
+
     # Load value from configuration file (see above for a small doc about this file
     # format)
     local src_url=$(grep 'SOURCE_URL=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
@@ -139,7 +139,7 @@ ynh_setup_source () {
     local src_format=$(grep 'SOURCE_FORMAT=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
     local src_in_subdir=$(grep 'SOURCE_IN_SUBDIR=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
     local src_filename=$(grep 'SOURCE_FILENAME=' "$YNH_CWD/../conf/${src_id}.src" | cut -d= -f2-)
-    
+
     # Default value
     src_sumprg=${src_sumprg:-sha256sum}
     src_in_subdir=${src_in_subdir:-true}
@@ -216,10 +216,11 @@ ynh_setup_source () {
 # | arg: ...         - (Optionnal) More POST keys and values
 ynh_local_curl () {
 	# Define url of page to curl
-	full_page_url=https://localhost$path_url$1
+	local full_page_url=https://localhost$path_url$1
 
 	# Concatenate all other arguments with '&' to prepare POST data
-	POST_data=""
+	local POST_data=""
+	local arg=""
 	for arg in "${@:2}"
 	do
 		POST_data="${POST_data}${arg}&"