using env variables for TOKEN, USER and EMAIL

rtenets

@@ -63,6 +63,23 @@ enter() {
     printf "${input_var}"
 }
 
+# Test if a variable name is set
+is_set() {
+    local var_name="$1"
+    eval "! [[ -z \"\${${var_name}+x}\" ]]"
+    return $?
+}
+
+# Set var to first value if unset
+alt_var() {
+    local value_if_unset="$1"
+    local variable="$2"
+    if is_set "${variable}"; then
+        printf "%s" "$(eval "printf \"%s\" \"\${${variable}}\"")"
+    else
+        printf "%s" "$value_if_unset"
+    fi
+}
 
 # Check that command exists
 has_command() {
@@ -88,13 +105,13 @@ get_gitea_token(){
         TOKEN="$(enter "gitea token: ")"
     fi
     readonly TOKEN
-    info "gitea token: '${TOKEN}'"
 }
 
 gitea() {
     check_api_prerequisites
+    readonly TOKEN
 
-    if [[ -z ${TOKEN+x} ]]; then
+    if ! is_set TOKEN; then
         get_gitea_token
     fi
 
@@ -136,8 +153,8 @@ check_git_config() {
         error "git not found, please install"
     fi
 
-    readonly USER="$(get_git_config user.name)"
+    readonly USER="$(alt_var "$(get_git_config user.name)" USER)"
-    readonly EMAIL="$(get_git_config user.email)"
+    readonly EMAIL="$(alt_var "$(get_git_config user.email)" EMAIL)"
     info "found git credentials:\\n  - user.name: '${USER}'\\n  - user.email: '${EMAIL}'"
 }
 
@@ -260,7 +277,6 @@ main() {
     check_git_config
     create_tenet_file_tree
 
-    get_gitea_token
     gitea /user GET
 }