fix: add build path prefix map property to digest

CHANGES.md

@@ -6,6 +6,11 @@ Unreleased
 
 - Add direct dependencies to $ dune describe output (#5412, @esope)
 
+3.0.2 (Unreleased)
+------------------
+
+- Fix digest computation bug introduced in 3.0.1 (#5451, @rgrinberg)
+
 3.0.1 (17/02/2022)
 ------------------
 

src/dune_engine/build_system.ml

@@ -360,7 +360,7 @@ end = struct
 
   (* The current version of the rule digest scheme. We should increment it when
      making any changes to the scheme, to avoid collisions. *)
-  let rule_digest_version = 11
+  let rule_digest_version = 12
 
   let compute_rule_digest (rule : Rule.t) ~deps ~action ~sandbox_mode
       ~execution_parameters =
@@ -389,7 +389,8 @@ end = struct
       , List.map locks ~f:Path.to_string
       , Execution_parameters.action_stdout_on_success execution_parameters
       , Execution_parameters.action_stderr_on_success execution_parameters
-      , Execution_parameters.expand_aliases_in_sandbox execution_parameters )
+      , Execution_parameters.add_workspace_root_to_build_path_prefix_map
+          execution_parameters )
     in
     Digest.generic trace
 

test/blackbox-tests/test-cases/dune-cache/mode-copy.t/run.t

@@ -36,9 +36,9 @@ never built [target1] before.
   $ dune build --config-file=config target1 --debug-cache=shared,workspace-local \
   >   2>&1 | grep '_build/default/source\|_build/default/target'
   Workspace-local cache miss: _build/default/source: never seen this target before
-  Shared cache miss [ef66d7d3ff4264a591dc96ff4eac1f3a] (_build/default/source): not found in cache
+  Shared cache miss [207accecc1d6cb4939bd10606ed06974] (_build/default/source): not found in cache
   Workspace-local cache miss: _build/default/target1: never seen this target before
-  Shared cache miss [b7a99c68d779884507df259e4aa83ad3] (_build/default/target1): not found in cache
+  Shared cache miss [f72c5ad51539d71b2e7be7fbf7bed942] (_build/default/target1): not found in cache
 
   $ dune_cmd stat hardlinks _build/default/source
   1

test/blackbox-tests/test-cases/dune-cache/mode-hardlink.t/run.t

@@ -35,9 +35,9 @@ never built [target1] before.
   $ dune build --config-file=config target1 --debug-cache=shared,workspace-local \
   >   2>&1 | grep '_build/default/source\|_build/default/target'
   Workspace-local cache miss: _build/default/source: never seen this target before
-  Shared cache miss [ef66d7d3ff4264a591dc96ff4eac1f3a] (_build/default/source): not found in cache
+  Shared cache miss [207accecc1d6cb4939bd10606ed06974] (_build/default/source): not found in cache
   Workspace-local cache miss: _build/default/target1: never seen this target before
-  Shared cache miss [b7a99c68d779884507df259e4aa83ad3] (_build/default/target1): not found in cache
+  Shared cache miss [f72c5ad51539d71b2e7be7fbf7bed942] (_build/default/target1): not found in cache
 
   $ dune_cmd stat hardlinks _build/default/source
   3

test/blackbox-tests/test-cases/dune-cache/repro-check.t/run.t

@@ -67,7 +67,7 @@ Set 'cache-check-probability' to 1.0, which should trigger the check
   > EOF
   $ rm -rf _build
   $ dune build --config-file config reproducible non-reproducible
-  Warning: cache store error [2522fd3dc29664b37f7c36af43b54479]: ((in_cache
+  Warning: cache store error [50ef03520a30e8325c18fdf2c0bdd1ea]: ((in_cache
   ((non-reproducible 1c8fc4744d4cef1bd2b8f5e915b36be9))) (computed
   ((non-reproducible 6cfaa7a90747882bcf4ffe7252c1cf89)))) after executing
   (echo 'build non-reproducible';cp dep non-reproducible)
@@ -119,7 +119,7 @@ Test that the environment variable and the command line flag work too
 
   $ rm -rf _build
   $ DUNE_CACHE_CHECK_PROBABILITY=1.0 dune build --cache=enabled reproducible non-reproducible
-  Warning: cache store error [2522fd3dc29664b37f7c36af43b54479]: ((in_cache
+  Warning: cache store error [50ef03520a30e8325c18fdf2c0bdd1ea]: ((in_cache
   ((non-reproducible 1c8fc4744d4cef1bd2b8f5e915b36be9))) (computed
   ((non-reproducible 6cfaa7a90747882bcf4ffe7252c1cf89)))) after executing
   (echo 'build non-reproducible';cp dep non-reproducible)
@@ -131,7 +131,7 @@ Test that the environment variable and the command line flag work too
 
   $ rm -rf _build
   $ dune build --cache=enabled --cache-check-probability=1.0 reproducible non-reproducible
-  Warning: cache store error [2522fd3dc29664b37f7c36af43b54479]: ((in_cache
+  Warning: cache store error [50ef03520a30e8325c18fdf2c0bdd1ea]: ((in_cache
   ((non-reproducible 1c8fc4744d4cef1bd2b8f5e915b36be9))) (computed
   ((non-reproducible 6cfaa7a90747882bcf4ffe7252c1cf89)))) after executing
   (echo 'build non-reproducible';cp dep non-reproducible)

test/blackbox-tests/test-cases/dune-cache/trim.t/run.t

@@ -77,10 +77,10 @@ You will also need to make sure that the cache trimmer treats new and old cache
 entries uniformly.
 
   $ (cd "$PWD/.xdg-cache/dune/db/meta/v5"; grep -rws . -e 'metadata' | sort)
-  ./7f/7fa490191ab9b44e14146673ef811ece:((8:metadata)(5:files(8:target_b32:8a53bfae3829b48866079fa7f2d97781)))
-  ./90/90ed6e6f2741da06a6643d77ad1126a2:((8:metadata)(5:files(8:target_a32:5637dd9730e430c7477f52d46de3909c)))
+  ./79/794d5128a9d2983d22ac1af3a408c1bb:((8:metadata)(5:files(8:target_a32:5637dd9730e430c7477f52d46de3909c)))
+  ./b5/b5ed9d55c072f2e7f31973a528aa16ff:((8:metadata)(5:files(8:target_b32:8a53bfae3829b48866079fa7f2d97781)))
 
-  $ dune_cmd stat size "$PWD/.xdg-cache/dune/db/meta/v5/90/90ed6e6f2741da06a6643d77ad1126a2"
+  $ dune_cmd stat size "$PWD/.xdg-cache/dune/db/meta/v5/b5/b5ed9d55c072f2e7f31973a528aa16ff"
   70
 
 Trimming the cache at this point should not remove any file entries because all