tracifyjs - Reverse engineer's tool for tracing the flow of data in JS program, based on UglifyJS

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if (x) foo();
if (x) foo(); else baz();
if (x) foo(); else if (y) bar(); else baz();
if (x) if (y) foo(); else bar(); else baz();
if (x) foo(); else if (y) bar(); else if (z) baz(); else moo();
function f() {
if (x) foo();
if (x) foo(); else baz();
if (x) foo(); else if (y) bar(); else baz();
if (x) if (y) foo(); else bar(); else baz();
if (x) foo(); else if (y) bar(); else if (z) baz(); else moo();
}

forded by deduplication. Not considering these files for deduplication speeds up file insertion in the store and, more importantly, leaves 'removeUnusedLinks' with fewer entries to traverse, thereby speeding it up proportionally. Partly fixes <https://issues.guix.gnu.org/24937>. * config-daemon.ac: Remove symlink hard link check and CAN_LINK_SYMLINK definition. * guix/store/deduplication.scm (%deduplication-minimum-size): New variable. (deduplicate)[loop]: Do not recurse when FILE's size is below %DEDUPLICATION-MINIMUM-SIZE. (dump-port): New procedure. (dump-file/deduplicate)[hash]: Turn into... [dump-and-compute-hash]: ... this thunk. Call 'deduplicate' only when SIZE is greater than %DEDUPLICATION-MINIMUM-SIZE; otherwise call 'dump-port'. * nix/libstore/gc.cc (LocalStore::removeUnusedLinks): Drop files where st.st_size < deduplicationMinSize. * nix/libstore/local-store.hh (deduplicationMinSize): New declaration. * nix/libstore/optimise-store.cc (deduplicationMinSize): New variable. (LocalStore::optimisePath_): Return when PATH is a symlink or smaller than 'deduplicationMinSize'. * tests/derivations.scm ("identical files are deduplicated"): Produce files bigger than %DEDUPLICATION-MINIMUM-SIZE. * tests/nar.scm ("restore-file-set with directories (signed, valid)"): Likewise. * tests/store-deduplication.scm ("deduplicate, below %deduplication-minimum-size"): New test. ("deduplicate", "deduplicate, ENOSPC"): Produce files bigger than %DEDUPLICATION-MINIMUM-SIZE. * tests/store.scm ("substitute, deduplication"): Likewise. Ludovic Courtès 2020-12-15deduplicate: Create the '.links' directory lazily....Ludovic Courtès 2020-12-15store-copy: 'populate-store' can optionally deduplicate files....Ludovic Courtès