implements #15

support for .hasrc file in current working directory, from where
has command is fired. these commands are merged with cli args.

.gitignore

@@ -1,3 +1,4 @@
 *~
 .DS_Store
 .idea
+tmp-for-test/

.hasrc

@@ -0,0 +1,2 @@
+make
+curl

.hastest.bats

@@ -1,5 +1,17 @@
 #!/usr/bin/env bats
 
+setup() {
+  mkdir -p ./tmp-for-test
+  cp -f has ./tmp-for-test/
+  cd tmp-for-test
+}
+
+teardown() {
+  cd ..
+  rm -rf ./tmp-for-test
+}
+
+
 @test "works with single command check" {
   run bash has git
 
@@ -34,3 +46,28 @@
 
   [[ "$status" -eq 126 ]]
 }
+
+
+@test "loads commands from .hasrc file" {
+  printf "bash\nmake\n" >> .hasrc
+
+  run bash has
+
+  [[ "$status" -eq 0 ]]
+
+  [[ "$(echo "${output}" | grep "✔" | grep "bash")" ]]
+  [[ "$(echo "${output}" | grep "✔" | grep "make")" ]]
+}
+
+@test "loads commands from .hasrc file and honors cli args as well" {
+  printf "bash\nmake\ngit" >> .hasrc
+
+  HAS_ALLOW_UNSAFE=y run bash has git bc
+
+  [[ "$status" -eq 0 ]]
+
+  [[ "$(echo "${output}" | grep "✔" | grep "bash")" ]]
+  [[ "$(echo "${output}" | grep "✔" | grep "make")" ]]
+  [[ "$(echo "${output}" | grep "✔" | grep "git")" ]]
+  [[ "$(echo "${output}" | grep "✔" | grep "bc")" ]]
+}

has

@@ -16,8 +16,11 @@ KO=0
 ## Regex to extract simple version - extracts numeric sem-ver style versions
 REGEX_SIMPLE_VERSION="([[:digit:]]+\.?){2,3}"
 
+## RC file can contain commands to be tested
+RC_FILE=".hasrc"
 
-## try to extract version by executing $1 with $2 arg
+
+# try to extract version by executing $1 with $2 arg
 __dynamic_detect(){
   cmd=$1
   params=$2
@@ -30,7 +33,7 @@ __dynamic_detect--version(){
   __dynamic_detect $1 "--version"
 }
 
-## commands that use `-version` flag
+# commands that use `-version` flag
 __dynamic_detect-version(){
   __dynamic_detect $1 "-version"
 }
@@ -162,24 +165,36 @@ __detect(){
 }
 
 
+
+if [ -s "${RC_FILE}" ];  then
+  HASRC="true"
+fi
+
 # if no arguments passed to script
-if [ "$#" -eq 0 ]; then
+if [[ "${HASRC}" -ne "true" ]] && [ "$#" -eq 0 ]; then
   # print help
   BINARY_NAME="has"
   VERSION="v1.3.0"
   printf "${BINARY_NAME} ${VERSION}\n"
   printf "USAGE:    ${BINARY_NAME} <command-names>..\n"
-  printf "EXAMPLE:  ${BINARY_NAME} git curl node\n"
+  printf "EXAMPLE:  ${BINARY_NAME} git curl node\n\n"
 
 else
-  # for each arg
+  # for each cli-arg
   for cmd in "$@"; do
-      __detect $cmd
+      __detect "$cmd"
   done
 
   ## display found / total
   #  echo  ${OK} / $(($OK+$KO))
 
+  if [[ "${HASRC}" == "true" ]]; then
+    ## for all
+    for line in $(cat ".hasrc" | egrep -v "^\s*(#|$)" ); do
+      __detect "$line"
+    done
+  fi
+
   ## max status code that can be returned
   MAX_STATUS_CODE=126