Basic target completion for make(1)

1 files changed, 37 insertions, 0 deletions

diff --git a/bash/bashrc.d/make.bash b/bash/bashrc.d/make.bash
new file mode 100644
index 00000000..d6f4eafa
--- /dev/null
+++ b/bash/bashrc.d/make.bash
@@ -0,0 +1,37 @@
+# Bail if no make(1)
+if ! hash make 2>/dev/null ; then
+    return
+fi
+
+# Completion setup for Make, completing targets
+#
+# Note that because of the 
+_make() {
+    local word=${COMP_WORDS[COMP_CWORD]}
+
+    # Quietly bail if no legible Makefile
+    if [[ ! -r Makefile ]] ; then
+        return 1
+    fi
+
+    # Build a list of targets by parsing the Makefile
+    local -a targets tokens
+    local target line
+        while read -r line ; do
+        if [[ $line == *:* ]] ; then
+            target=$line
+            target=${target%%:*}
+            target=${target% }
+            if [[ $target != *[^[:alnum:][:space:]_-]* ]] ; then
+                IFS=' ' read -a tokens \
+                    < <(printf '%s\n' "$target")
+                targets=("${targets[@]}" "${tokens[@]}")
+            fi
+        fi
+    done < Makefile
+
+    # Complete with matching targets
+    COMPREPLY=( $(compgen -W "${targets[*]}" -- "$word") )
+}
+complete -F _make -o default make
+