unikernel/duniverse/dune_/test/blackbox-tests/test-cases/watching/what-dune-watches.t

@@ -0,0 +1,37 @@
+Show what Dune watches via inotify
+
+  $ mkdir test
+  $ cd test
+
+  $ echo '(lang dune 3.0)' > dune-project
+  $ mkdir src
+  $ echo '(library (name foo))' > src/dune
+  $ touch src/a.ml
+  $ touch src/b.ml
+
+  $ strace -o ../log -e inotify_add_watch dune build --passive-watch-mode &
+  Success, waiting for filesystem changes...
+
+  $ dune rpc build --wait .
+  Success
+  $ dune shutdown
+  $ wait
+
+The pattern below excludes absolute files as Dune currently watches
+everything in the PATH, which is not very reproducible.
+
+  $ sed -nE 's/inotify_add_watch\([0-9]*, "([^/].*)", .*\) (=.*)/watch \1 \2/p' ../log | sort -u
+  watch . = 2
+  watch _build/.sync = 1
+  watch src = 3
+
+Since the pattern above is not reproducible, uncomment the next lines
+to see what it is really doing
+#  $ sed -nE 's/inotify_add_watch\([0-9]*, "(.*)", .*\) (=.*)/watch \1 \2/p' ../log | sort -u -k4n -k2 | sed "s,$OPAM_SWITCH_PREFIX,OPAM_SWITCH_PREFIX," | sed "s,$DUNE_SOURCEROOT,DUNE_SOURCEROOT,"
+#  watch _build/.sync = 1
+#  watch . = 2
+#  watch src = 3
+#  watch DUNE_SOURCEROOT/_build/default/test/blackbox-tests/test-cases/.bin = 4
+#  watch DUNE_SOURCEROOT/_build/install/default/bin = 5
+#  watch OPAM_SWITCH_PREFIX/bin = 6
+#  watch OPAM_SWITCH_PREFIX/lib/ocaml = 7