Added --prefix option to display the alias path (#3)

predatorray · Jul 18, 2022 · c0a471c · c0a471c
1 parent c6b59f3
commit c0a471c
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Showing 2 changed files with 51 additions and 3 deletions.
diff --git a/bin/kubectl-alias b/bin/kubectl-alias
@@ -110,13 +110,16 @@ Options:
   -d, --delete:     Delete the alias
   -l, --list:       List all the aliases
   -N, --no-args     Do not append arguments to the end of the command when executing
+
+  --prefix          Display the alias path
   -h, --help:       Show the usage
   -V, --version:    Print the version
 
 Usage:
   ${PROG_NAME} [ -N | --no-args ] ALIAS COMMAND
   ${PROG_NAME} ( -d | --delete ) ALIAS
   ${PROG_NAME} ( -l | --list )
+  ${PROG_NAME} --prefix
 EOF
 }
 
@@ -208,6 +211,22 @@ EOF
     chmod +x-w "${kubectl_plugin_bin}"
 }
 
+function print_prefix() {
+    local argc="$#"
+    if [[ ! "${argc}" -eq 0 ]]; then
+        error_and_exit "--prefix requires zero argument but ${argc}."
+    fi
+    local alias_dir="${PROG_DIR}/../alias"
+    local prog_parent_dir="${PROG_DIR}/.."
+    if [[ -d "${alias_dir}" && -x "${alias_dir}" ]]; then
+        ( cd "${alias_dir}" && pwd )
+    elif [[ -d "${prog_parent_dir}" && -x "${prog_parent_dir}" ]]; then
+        echo "$( cd "${prog_parent_dir}" && pwd )/alias"
+    else
+        error_and_exit "cannot find the alias directory: ${alias_dir}"
+    fi
+}
+
 function main() {
     check_prerequisites
 
@@ -217,11 +236,12 @@ function main() {
     fi
 
     local opts
-    opts=$(getopt -o hVdlN --long help,version,delete,list,no-args -- "$@")
+    opts=$(getopt -o hVdlN --long help,version,delete,list,no-args,prefix -- "$@")
     eval set -- $opts
 
     local op_delete=0
     local op_list=0
+    local op_prefix=0
     local opt_no_args=0
     while [[ $# -gt 0 ]]; do
         local opt="$1"
@@ -240,6 +260,9 @@ function main() {
             -d|--delete)
                 op_delete=1
                 ;;
+            --prefix)
+                op_prefix=1
+                ;;
             -N|--no-args)
                 opt_no_args=1
                 ;;
@@ -254,8 +277,9 @@ function main() {
         shift
     done
 
-    if [[ "${op_delete}" -gt 0 && "${op_list}" -gt 0 ]]; then
-        error_and_exit 'The option "-l, --list" and "-d, --delete" cannot be specified at the same time.'
+    local op_sum="$(( op_delete + op_list + op_prefix ))"
+    if [[ "${op_sum}" -gt 1 ]]; then
+        error_and_exit 'The option "-l, --list" or "-d, --delete" or "--prefix" cannot be used at the same time.'
     elif [[ "${op_list}" -gt 0 ]]; then
         if [[ ${opt_no_args} -gt 0 ]]; then
             warn 'The option -N, --no-args is not applicable to the option -l, --list.'
@@ -266,6 +290,8 @@ function main() {
             warn 'The option -N, --no-args is not applicable to the option -d, --delete.'
         fi
         delete_alias "$@"
+    elif [[ "${op_prefix}" -gt 0 ]]; then
+        print_prefix "$@"
     else
         OPT_NO_ARGS="${opt_no_args}" create_alias "$@"
     fi

diff --git a/test/tests.bats b/test/tests.bats
@@ -93,6 +93,11 @@ function teardown() {
     [ ! -f alias/kubectl-v ]
 }
 
+@test "delete_an_alias_that_does_not_exist" {
+    bin/kubectl-alias --delete na || exit_code="$?"
+    [ "${exit_code}" = 1 ]
+}
+
 @test "list_all_aliaes" {
     bin/kubectl-alias v1 version
     bin/kubectl-alias v2 version
@@ -110,3 +115,20 @@ function teardown() {
     local version_output=$(bin/kubectl-alias --help)
     [ ! -z "${version_output}" ]
 }
+
+@test "prefix" {
+    local prefix_output=$(bin/kubectl-alias --prefix)
+    [ "${prefix_output}" = "$(pwd)/alias" ]
+}
+
+@test "list_and_delete_at_same_time" {
+    local exit_code
+    bin/kubectl-alias '--list' '--delete' foobar || exit_code="$?"
+    [ "${exit_code}" = 1 ]
+}
+
+@test "list_and_delete_and_prefix_at_same_time" {
+    local exit_code
+    bin/kubectl-alias '--list' '--delete' foobar '--prefix' || exit_code="$?"
+    [ "${exit_code}" = 1 ]
+}