1 files changed, 86 insertions, 0 deletions
diff --git a/make-permanently.in b/make-permanently.in
new file mode 100755
index 0000000..659517a
--- /dev/null
+++ b/make-permanently.in
@@ -0,0 +1,86 @@
+#!/bin/sh
+
+# part of even-more-utils, version #VERSION#
+
+# run make as soon as needed
+
+if [ "x$1" = 'x-r' ]; then
+  recursive=true
+  shift
+else
+  recursive=false
+fi
+
+make "$@"
+
+while true; do
+  if ${recursive}; then
+    inotifywait -e DELETE_SELF,CLOSE_WRITE -r * || break
+  else
+    make_content=$(
+      sed '
+        :a
+          \/\\$/ {
+            N
+            s/\\\n//
+            ta
+          }
+        /^\(\s\|$\)/d
+      ' 'Makefile' \
+      | while read -r line; do
+        if [ -z "${line##\$(foreach *,*,*)*}" ]; then
+          line="${line#\$(foreach }"
+          var="${line%%,*}"
+          line="${line#${var}*,}"
+          runs="${line%,*}"
+          line="${line#${runs},}"
+          body="${line%%)*}"
+          line="${line#${body})}"
+          while [ $(printf '%s\n' "${body}" | tr -d '\n' | tr ')' '\n' | wc -l) -lt $(printf '%s\n' "${body}" | tr -d '\n' | tr '(' '\n' | wc -l) ] \
+          && [ -z "${line##*)*}" ]; do
+            new_body="${line%%)*}"
+            body="${body})${new_body}"
+            line="${line#${new_body})}"
+          done
+          for s in ${runs}; do
+            printf '%s' "${body}" \
+            | sed '
+              s#\$('"${var}"')#'"${s}"'#g
+            '
+          done \
+          | sed '
+            s/^\s\+//
+            s/\s\+$//
+          '
+        fi
+        printf '%s\n' "${line}"
+      done
+    )
+    substs=$(
+      printf '%s\n' "${make_content}" \
+      | sed '
+        s/^\([^[:space:]=]\+\)=\(.*\)$/s@\1@ \2 @g;\n/
+        t
+        d
+      '
+    )
+    watch_files=$(
+      printf '%s\n' "${make_content}" \
+      | sed "${substs}" \
+      | sed -n '
+        s/^\S.*: //
+        T
+        y/ /\n/
+        p
+      ' \
+      | sed '
+        /^\s*$/d
+        y/%/*/
+      ' \
+      | xargs -r readlink -f \
+      | sort -u
+    )
+    inotifywait -e DELETE_SELF,CLOSE_WRITE $(find ${watch_files} -type f) || break
+  fi
+  make "$@"
+done