replace all 'epm assure' with 'assure_exists'

bin/epm-download

@@ -150,7 +150,7 @@ __epm_print_url_alt_check()
 	local pkg=$1
 	shift
 	local tm=$(mktemp)
-	epm assure curl
+	assure_exists curl
 	load_helper epm-site
 	quiet=1
 	local buildtime=$(paoapi packages/$pkg | get_pao_var buildtime)

bin/epm-restore

@@ -365,7 +365,7 @@ __epm_restore_npm()
 {
     local req_file="$1"
 
-    epm assure jq || fatal
+    assure_exists jq || fatal
 
     if [ -n "$dryrun" ] ; then
         local lt=$(mktemp)
@@ -421,7 +421,7 @@ __epm_restore_perl_shyaml()
 {
     local req_file="$1"
 
-    epm assure shyaml || fatal
+    assure_exists shyaml || fatal
 
     if [ -n "$dryrun" ] ; then
         local lt=$(mktemp)

bin/epm-sh-altlinux

@@ -27,8 +27,8 @@ tasknumber()
 get_task_arepo_packages()
 {
     local res
-    epm assure apt-repo
-    epm assure curl
+    assure_exists apt-repo
+    assure_exists curl
 
     info "TODO: please, improve apt-repo to support arepo (i586-) packages for apt-repo list task"
     showcmd "curl -s -f http://git.altlinux.org/tasks/$tn/plan/arepo-add-x86_64-i586 | cut -f1"

bin/epm-site

@@ -25,7 +25,7 @@ PAOURL="https://packages.altlinux.org"
 paoapi()
 {
 	# http://petstore.swagger.io/?url=http://packages.altlinux.org/api/docs
-	epm assure curl || return 1
+	assure_exists curl || return 1
 	showcmd curl "$PAOURL/api/$1"
 	a='' curl -s --header "Accept: application/json" "$PAOURL/api/$1"
 }

bin/serv-enable

@@ -50,7 +50,7 @@ __serv_enable()
 			sudocmd rc-update add $1 default
 			;;
 		runit)
-			epm assure $SERVICE
+			assure_exists $SERVICE
 			[ -r "/etc/sv/$SERVICE" ] || fatal "Can't find /etc/sv/$SERVICE"
 			sudocmd ln -s /etc/sv/$SERVICE /var/service/
 			;;