upstream/mercurial-mirror Files · tests/test-fuzz-targets.t

copies: add config option for writing copy metadata to file and/or changset...

copies: add config option for writing copy metadata to file and/or changset This introduces a config option that lets you choose to write copy metadata to the changeset extras instead of to filelog. There's also an option to write it to both places. I imagine that may possibly be useful when transitioning an existing repo. The copy metadata is stored as two fields in extras: one for copies since p1 and one for copies since p2. I may need to add more information later in order to make copy tracing faster. Specifically, I'm thinking out recording which files were added or removed so that copies._chaincopies() doesn't have to look at the manifest for that. But that would just be an optimization and that can be added once we know if it's necessary. I have also considered saving space by using replacing the destination file path by an index into the "files" list, but that can also be changed later (but before the feature is ready to release). Differential Revision: https://phab.mercurial-scm.org/D6183

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      #require test-repo

        $ cd $TESTDIR/../contrib/fuzz

      which(1) could exit nonzero, but that's fine because we'll still end

      up without a valid executable, so we don't need to check $? here.

        $ if which gmake >/dev/null 2>&1; then

        >     MAKE=gmake

        > else

        >     MAKE=make

        > fi

        $ havefuzz() {

        >     cat > $TESTTMP/dummy.cc <<EOF

        > #include <stdlib.h>

        > #include <stdint.h>

        > int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }

        > int main(int argc, char **argv) {

        >     const char data[] = "asdf";

        >     return LLVMFuzzerTestOneInput((const uint8_t *)data, 4);

        > }

        > EOF

        >     $CXX $TESTTMP/dummy.cc -o $TESTTMP/dummy \

        >        -fsanitize=fuzzer-no-link,address || return 1

        > }

      #if clang-libfuzzer

        $ CXX=clang++ havefuzz || exit 80

        $ $MAKE -s clean all

      #endif

      #if no-clang-libfuzzer clang-6.0

        $ CXX=clang++-6.0 havefuzz || exit 80

        $ $MAKE -s clean all CC=clang-6.0 CXX=clang++-6.0

      #endif

      #if no-clang-libfuzzer no-clang-6.0

        $ exit 80

      #endif

      Just run the fuzzers for five seconds each to verify it works at all.

        $ ./bdiff -max_total_time 5

        $ ./mpatch -max_total_time 5

        $ ./xdiff -max_total_time 5

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				#require test-repo

				$ cd $TESTDIR/../contrib/fuzz

				which(1) could exit nonzero, but that's fine because we'll still end
				up without a valid executable, so we don't need to check $? here.

				$ if which gmake >/dev/null 2>&1; then
				> MAKE=gmake
				> else
				> MAKE=make
				> fi

				$ havefuzz() {
				> cat > $TESTTMP/dummy.cc <<EOF
				> #include <stdlib.h>
				> #include <stdint.h>
				> int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
				> int main(int argc, char **argv) {
				> const char data[] = "asdf";
				> return LLVMFuzzerTestOneInput((const uint8_t *)data, 4);
				> }
				> EOF
				> $CXX $TESTTMP/dummy.cc -o $TESTTMP/dummy \
				> -fsanitize=fuzzer-no-link,address \|\| return 1
				> }

				#if clang-libfuzzer
				$ CXX=clang++ havefuzz \|\| exit 80
				$ $MAKE -s clean all
				#endif
				#if no-clang-libfuzzer clang-6.0
				$ CXX=clang++-6.0 havefuzz \|\| exit 80
				$ $MAKE -s clean all CC=clang-6.0 CXX=clang++-6.0
				#endif
				#if no-clang-libfuzzer no-clang-6.0
				$ exit 80
				#endif

				Just run the fuzzers for five seconds each to verify it works at all.
				$ ./bdiff -max_total_time 5
				$ ./mpatch -max_total_time 5
				$ ./xdiff -max_total_time 5