diff options
| -rw-r--r-- | fsmonitor.c | 29 | ||||
| -rwxr-xr-x | t/t7519-status-fsmonitor.sh | 17 | ||||
| -rwxr-xr-x | t/t7519/fsmonitor-env | 24 |
3 files changed, 65 insertions, 5 deletions
diff --git a/fsmonitor.c b/fsmonitor.c index 231e83a94d..1f4aa1b150 100644 --- a/fsmonitor.c +++ b/fsmonitor.c @@ -14,8 +14,13 @@ struct trace_key trace_fsmonitor = TRACE_KEY_INIT(FSMONITOR); static void fsmonitor_ewah_callback(size_t pos, void *is) { struct index_state *istate = (struct index_state *)is; - struct cache_entry *ce = istate->cache[pos]; + struct cache_entry *ce; + if (pos >= istate->cache_nr) + BUG("fsmonitor_dirty has more entries than the index (%"PRIuMAX" >= %u)", + (uintmax_t)pos, istate->cache_nr); + + ce = istate->cache[pos]; ce->ce_flags &= ~CE_FSMONITOR_VALID; } @@ -50,17 +55,24 @@ int read_fsmonitor_extension(struct index_state *istate, const void *data, } istate->fsmonitor_dirty = fsmonitor_dirty; + if (istate->fsmonitor_dirty->bit_size > istate->cache_nr) + BUG("fsmonitor_dirty has more entries than the index (%"PRIuMAX" > %u)", + (uintmax_t)istate->fsmonitor_dirty->bit_size, istate->cache_nr); + trace_printf_key(&trace_fsmonitor, "read fsmonitor extension successful"); return 0; } void fill_fsmonitor_bitmap(struct index_state *istate) { - unsigned int i; + unsigned int i, skipped = 0; istate->fsmonitor_dirty = ewah_new(); - for (i = 0; i < istate->cache_nr; i++) - if (!(istate->cache[i]->ce_flags & CE_FSMONITOR_VALID)) - ewah_set(istate->fsmonitor_dirty, i); + for (i = 0; i < istate->cache_nr; i++) { + if (istate->cache[i]->ce_flags & CE_REMOVE) + skipped++; + else if (!(istate->cache[i]->ce_flags & CE_FSMONITOR_VALID)) + ewah_set(istate->fsmonitor_dirty, i - skipped); + } } void write_fsmonitor_extension(struct strbuf *sb, struct index_state *istate) @@ -71,6 +83,10 @@ void write_fsmonitor_extension(struct strbuf *sb, struct index_state *istate) uint32_t ewah_size = 0; int fixup = 0; + if (istate->fsmonitor_dirty->bit_size > istate->cache_nr) + BUG("fsmonitor_dirty has more entries than the index (%"PRIuMAX" > %u)", + (uintmax_t)istate->fsmonitor_dirty->bit_size, istate->cache_nr); + put_be32(&hdr_version, INDEX_EXTENSION_VERSION); strbuf_add(sb, &hdr_version, sizeof(uint32_t)); @@ -236,6 +252,9 @@ void tweak_fsmonitor(struct index_state *istate) } /* Mark all previously saved entries as dirty */ + if (istate->fsmonitor_dirty->bit_size > istate->cache_nr) + BUG("fsmonitor_dirty has more entries than the index (%"PRIuMAX" > %u)", + (uintmax_t)istate->fsmonitor_dirty->bit_size, istate->cache_nr); ewah_each_bit(istate->fsmonitor_dirty, fsmonitor_ewah_callback, istate); /* Now mark the untracked cache for fsmonitor usage */ diff --git a/t/t7519-status-fsmonitor.sh b/t/t7519-status-fsmonitor.sh index 81a375fa0f..d8df990972 100755 --- a/t/t7519-status-fsmonitor.sh +++ b/t/t7519-status-fsmonitor.sh @@ -354,4 +354,21 @@ test_expect_success 'discard_index() also discards fsmonitor info' ' test_cmp expect actual ' +# Test staging/unstaging files that appear at the end of the index. Test +# file names begin with 'z' so that they are sorted to the end of the index. +test_expect_success 'status succeeds after staging/unstaging ' ' + test_create_repo fsmonitor-stage-unstage && + ( + cd fsmonitor-stage-unstage && + test_commit initial && + git update-index --fsmonitor && + removed=$(test_seq 1 100 | sed "s/^/z/") && + touch $removed && + git add $removed && + git config core.fsmonitor "$TEST_DIRECTORY/t7519/fsmonitor-env" && + FSMONITOR_LIST="$removed" git restore -S $removed && + FSMONITOR_LIST="$removed" git status + ) +' + test_done diff --git a/t/t7519/fsmonitor-env b/t/t7519/fsmonitor-env new file mode 100755 index 0000000000..8f1f7ab164 --- /dev/null +++ b/t/t7519/fsmonitor-env @@ -0,0 +1,24 @@ +#!/bin/sh +# +# An test hook script to integrate with git to test fsmonitor. +# +# The hook is passed a version (currently 1) and a time in nanoseconds +# formatted as a string and outputs to stdout all files that have been +# modified since the given time. Paths must be relative to the root of +# the working tree and separated by a single NUL. +# +#echo "$0 $*" >&2 + +if test "$#" -ne 2 +then + echo "$0: exactly 2 arguments expected" >&2 + exit 2 +fi + +if test "$1" != 1 +then + echo "Unsupported core.fsmonitor hook version." >&2 + exit 1 +fi + +printf '%s\n' $FSMONITOR_LIST |