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-rwxr-xr-xt/t7519-status-fsmonitor.sh480
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diff --git a/t/t7519-status-fsmonitor.sh b/t/t7519-status-fsmonitor.sh
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+#!/bin/sh
+
+test_description='git status with file system watcher'
+
+. ./test-lib.sh
+
+# Note, after "git reset --hard HEAD" no extensions exist other than 'TREE'
+# "git update-index --fsmonitor" can be used to get the extension written
+# before testing the results.
+
+clean_repo () {
+ git reset --hard HEAD &&
+ git clean -fd
+}
+
+dirty_repo () {
+ : >untracked &&
+ : >dir1/untracked &&
+ : >dir2/untracked &&
+ echo 1 >modified &&
+ echo 2 >dir1/modified &&
+ echo 3 >dir2/modified &&
+ echo 4 >new &&
+ echo 5 >dir1/new &&
+ echo 6 >dir2/new
+}
+
+write_integration_script () {
+ test_hook --setup --clobber fsmonitor-test<<-\EOF
+ if test "$#" -ne 2
+ then
+ echo "$0: exactly 2 arguments expected"
+ exit 2
+ fi
+ if test "$1" != 2
+ then
+ echo "Unsupported core.fsmonitor hook version." >&2
+ exit 1
+ fi
+ printf "last_update_token\0"
+ printf "untracked\0"
+ printf "dir1/untracked\0"
+ printf "dir2/untracked\0"
+ printf "modified\0"
+ printf "dir1/modified\0"
+ printf "dir2/modified\0"
+ printf "new\0"
+ printf "dir1/new\0"
+ printf "dir2/new\0"
+ EOF
+}
+
+test_lazy_prereq UNTRACKED_CACHE '
+ { git update-index --test-untracked-cache; ret=$?; } &&
+ test $ret -ne 1
+'
+
+# Test that we detect and disallow repos that are incompatible with FSMonitor.
+test_expect_success 'incompatible bare repo' '
+ test_when_finished "rm -rf ./bare-clone actual expect" &&
+ git init --bare bare-clone &&
+
+ test_must_fail \
+ git -C ./bare-clone -c core.fsmonitor=foo \
+ update-index --fsmonitor 2>actual &&
+ grep "bare repository .* is incompatible with fsmonitor" actual &&
+
+ test_must_fail \
+ git -C ./bare-clone -c core.fsmonitor=true \
+ update-index --fsmonitor 2>actual &&
+ grep "bare repository .* is incompatible with fsmonitor" actual
+'
+
+test_expect_success FSMONITOR_DAEMON 'run fsmonitor-daemon in bare repo' '
+ test_when_finished "rm -rf ./bare-clone actual" &&
+ git init --bare bare-clone &&
+ test_must_fail git -C ./bare-clone fsmonitor--daemon run 2>actual &&
+ grep "bare repository .* is incompatible with fsmonitor" actual
+'
+
+test_expect_success MINGW,FSMONITOR_DAEMON 'run fsmonitor-daemon in virtual repo' '
+ test_when_finished "rm -rf ./fake-virtual-clone actual" &&
+ git init fake-virtual-clone &&
+ test_must_fail git -C ./fake-virtual-clone \
+ -c core.virtualfilesystem=true \
+ fsmonitor--daemon run 2>actual &&
+ grep "virtual repository .* is incompatible with fsmonitor" actual
+'
+
+test_expect_success 'setup' '
+ : >tracked &&
+ : >modified &&
+ mkdir dir1 &&
+ : >dir1/tracked &&
+ : >dir1/modified &&
+ mkdir dir2 &&
+ : >dir2/tracked &&
+ : >dir2/modified &&
+ git -c core.fsmonitor= add . &&
+ git -c core.fsmonitor= commit -m initial &&
+ git config core.fsmonitor .git/hooks/fsmonitor-test &&
+ cat >.gitignore <<-\EOF
+ .gitignore
+ expect*
+ actual*
+ marker*
+ trace2*
+ EOF
+'
+
+# test that the fsmonitor extension is off by default
+test_expect_success 'fsmonitor extension is off by default' '
+ test-tool dump-fsmonitor >actual &&
+ grep "^no fsmonitor" actual
+'
+
+# test that "update-index --fsmonitor" adds the fsmonitor extension
+test_expect_success 'update-index --fsmonitor" adds the fsmonitor extension' '
+ git update-index --fsmonitor &&
+ test-tool dump-fsmonitor >actual &&
+ grep "^fsmonitor last update" actual
+'
+
+# test that "update-index --no-fsmonitor" removes the fsmonitor extension
+test_expect_success 'update-index --no-fsmonitor" removes the fsmonitor extension' '
+ git update-index --no-fsmonitor &&
+ test-tool dump-fsmonitor >actual &&
+ grep "^no fsmonitor" actual
+'
+
+cat >expect <<EOF &&
+h dir1/modified
+H dir1/tracked
+h dir2/modified
+H dir2/tracked
+h modified
+H tracked
+EOF
+
+# test that "update-index --fsmonitor-valid" sets the fsmonitor valid bit
+test_expect_success 'update-index --fsmonitor-valid" sets the fsmonitor valid bit' '
+ test_hook fsmonitor-test<<-\EOF &&
+ printf "last_update_token\0"
+ EOF
+ git update-index --fsmonitor &&
+ git update-index --fsmonitor-valid dir1/modified &&
+ git update-index --fsmonitor-valid dir2/modified &&
+ git update-index --fsmonitor-valid modified &&
+ git ls-files -f >actual &&
+ test_cmp expect actual
+'
+
+cat >expect <<EOF &&
+H dir1/modified
+H dir1/tracked
+H dir2/modified
+H dir2/tracked
+H modified
+H tracked
+EOF
+
+# test that "update-index --no-fsmonitor-valid" clears the fsmonitor valid bit
+test_expect_success 'update-index --no-fsmonitor-valid" clears the fsmonitor valid bit' '
+ git update-index --no-fsmonitor-valid dir1/modified &&
+ git update-index --no-fsmonitor-valid dir2/modified &&
+ git update-index --no-fsmonitor-valid modified &&
+ git ls-files -f >actual &&
+ test_cmp expect actual
+'
+
+cat >expect <<EOF &&
+H dir1/modified
+H dir1/tracked
+H dir2/modified
+H dir2/tracked
+H modified
+H tracked
+EOF
+
+# test that all files returned by the script get flagged as invalid
+test_expect_success 'all files returned by integration script get flagged as invalid' '
+ write_integration_script &&
+ dirty_repo &&
+ git update-index --fsmonitor &&
+ git ls-files -f >actual &&
+ test_cmp expect actual
+'
+
+cat >expect <<EOF &&
+H dir1/modified
+h dir1/new
+H dir1/tracked
+H dir2/modified
+h dir2/new
+H dir2/tracked
+H modified
+h new
+H tracked
+EOF
+
+# test that newly added files are marked valid
+test_expect_success 'newly added files are marked valid' '
+ test_hook --setup --clobber fsmonitor-test<<-\EOF &&
+ printf "last_update_token\0"
+ EOF
+ git add new &&
+ git add dir1/new &&
+ git add dir2/new &&
+ git ls-files -f >actual &&
+ test_cmp expect actual
+'
+
+cat >expect <<EOF &&
+H dir1/modified
+h dir1/new
+h dir1/tracked
+H dir2/modified
+h dir2/new
+h dir2/tracked
+H modified
+h new
+h tracked
+EOF
+
+# test that all unmodified files get marked valid
+test_expect_success 'all unmodified files get marked valid' '
+ # modified files result in update-index returning 1
+ test_must_fail git update-index --refresh --force-write-index &&
+ git ls-files -f >actual &&
+ test_cmp expect actual
+'
+
+cat >expect <<EOF &&
+H dir1/modified
+h dir1/tracked
+h dir2/modified
+h dir2/tracked
+h modified
+h tracked
+EOF
+
+# test that *only* files returned by the integration script get flagged as invalid
+test_expect_success '*only* files returned by the integration script get flagged as invalid' '
+ test_hook --clobber fsmonitor-test<<-\EOF &&
+ printf "last_update_token\0"
+ printf "dir1/modified\0"
+ EOF
+ clean_repo &&
+ git update-index --refresh --force-write-index &&
+ echo 1 >modified &&
+ echo 2 >dir1/modified &&
+ echo 3 >dir2/modified &&
+ test_must_fail git update-index --refresh --force-write-index &&
+ git ls-files -f >actual &&
+ test_cmp expect actual
+'
+
+# Ensure commands that call refresh_index() to move the index back in time
+# properly invalidate the fsmonitor cache
+test_expect_success 'refresh_index() invalidates fsmonitor cache' '
+ clean_repo &&
+ dirty_repo &&
+ write_integration_script &&
+ git add . &&
+ test_hook --clobber fsmonitor-test<<-\EOF &&
+ EOF
+ git commit -m "to reset" &&
+ git reset HEAD~1 &&
+ git status >actual &&
+ git -c core.fsmonitor= status >expect &&
+ test_cmp expect actual
+'
+
+# test fsmonitor with and without preloadIndex
+preload_values="false true"
+for preload_val in $preload_values
+do
+ test_expect_success "setup preloadIndex to $preload_val" '
+ git config core.preloadIndex $preload_val &&
+ if test $preload_val = true
+ then
+ GIT_TEST_PRELOAD_INDEX=$preload_val && export GIT_TEST_PRELOAD_INDEX
+ else
+ sane_unset GIT_TEST_PRELOAD_INDEX
+ fi
+ '
+
+ # test fsmonitor with and without the untracked cache (if available)
+ uc_values="false"
+ test_have_prereq UNTRACKED_CACHE && uc_values="false true"
+ for uc_val in $uc_values
+ do
+ test_expect_success "setup untracked cache to $uc_val" '
+ git config core.untrackedcache $uc_val
+ '
+
+ # Status is well tested elsewhere so we'll just ensure that the results are
+ # the same when using core.fsmonitor.
+ test_expect_success 'compare status with and without fsmonitor' '
+ write_integration_script &&
+ clean_repo &&
+ dirty_repo &&
+ git add new &&
+ git add dir1/new &&
+ git add dir2/new &&
+ git status >actual &&
+ git -c core.fsmonitor= status >expect &&
+ test_cmp expect actual
+ '
+
+ # Make sure it's actually skipping the check for modified and untracked
+ # (if enabled) files unless it is told about them.
+ test_expect_success "status doesn't detect unreported modifications" '
+ test_hook --clobber fsmonitor-test<<-\EOF &&
+ printf "last_update_token\0"
+ :>marker
+ EOF
+ clean_repo &&
+ git status &&
+ test_path_is_file marker &&
+ dirty_repo &&
+ rm -f marker &&
+ git status >actual &&
+ test_path_is_file marker &&
+ test_grep ! "Changes not staged for commit:" actual &&
+ if test $uc_val = true
+ then
+ test_grep ! "Untracked files:" actual
+ fi &&
+ if test $uc_val = false
+ then
+ test_grep "Untracked files:" actual
+ fi &&
+ rm -f marker
+ '
+ done
+done
+
+# test that splitting the index doesn't interfere
+test_expect_success 'splitting the index results in the same state' '
+ write_integration_script &&
+ dirty_repo &&
+ git update-index --fsmonitor &&
+ git ls-files -f >expect &&
+ test-tool dump-fsmonitor >&2 && echo &&
+ git update-index --fsmonitor --split-index &&
+ test-tool dump-fsmonitor >&2 && echo &&
+ git ls-files -f >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success UNTRACKED_CACHE 'ignore .git changes when invalidating UNTR' '
+ test_create_repo dot-git &&
+ (
+ cd dot-git &&
+ : >tracked &&
+ test-tool chmtime =-60 tracked &&
+ : >modified &&
+ test-tool chmtime =-60 modified &&
+ mkdir dir1 &&
+ : >dir1/tracked &&
+ test-tool chmtime =-60 dir1/tracked &&
+ : >dir1/modified &&
+ test-tool chmtime =-60 dir1/modified &&
+ mkdir dir2 &&
+ : >dir2/tracked &&
+ test-tool chmtime =-60 dir2/tracked &&
+ : >dir2/modified &&
+ test-tool chmtime =-60 dir2/modified &&
+ write_integration_script &&
+ git config core.fsmonitor .git/hooks/fsmonitor-test &&
+ git update-index --untracked-cache &&
+ git update-index --fsmonitor &&
+ git status &&
+ GIT_TRACE2_PERF="$TRASH_DIRECTORY/trace-before" \
+ git status &&
+ test-tool dump-untracked-cache >../before
+ ) &&
+ cat >>dot-git/.git/hooks/fsmonitor-test <<-\EOF &&
+ printf ".git\0"
+ printf ".git/index\0"
+ printf "dir1/.git\0"
+ printf "dir1/.git/index\0"
+ EOF
+ (
+ cd dot-git &&
+ GIT_TRACE2_PERF="$TRASH_DIRECTORY/trace-after" \
+ git status &&
+ test-tool dump-untracked-cache >../after
+ ) &&
+ grep "directory-invalidation" trace-before | cut -d"|" -f 9 >>before &&
+ grep "directory-invalidation" trace-after | cut -d"|" -f 9 >>after &&
+ # UNTR extension unchanged, dir invalidation count unchanged
+ test_cmp before after
+'
+
+test_expect_success 'discard_index() also discards fsmonitor info' '
+ test_config core.fsmonitor "$TEST_DIRECTORY/t7519/fsmonitor-all" &&
+ test_might_fail git update-index --refresh &&
+ test-tool read-cache --print-and-refresh=tracked 2 >actual &&
+ printf "tracked is%s up to date\n" "" " not" >expect &&
+ test_cmp expect actual
+'
+
+# Test unstaging entries that:
+# - Are not flagged with CE_FSMONITOR_VALID
+# - Have a position in the index >= the number of entries present in the index
+# after unstaging.
+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
+ )
+'
+
+# Usage:
+# check_sparse_index_behavior [!]
+# If "!" is supplied, then we verify that we do not call ensure_full_index
+# during a call to 'git status'. Otherwise, we verify that we _do_ call it.
+check_sparse_index_behavior () {
+ git -C full status --porcelain=v2 >expect &&
+ GIT_TRACE2_EVENT="$(pwd)/trace2.txt" \
+ git -C sparse status --porcelain=v2 >actual &&
+ test_region $1 index ensure_full_index trace2.txt &&
+ test_region fsm_hook query trace2.txt &&
+ test_cmp expect actual &&
+ rm trace2.txt
+}
+
+test_expect_success 'status succeeds with sparse index' '
+ (
+ sane_unset GIT_TEST_SPLIT_INDEX &&
+
+ git clone . full &&
+ git clone --sparse . sparse &&
+ git -C sparse sparse-checkout init --cone --sparse-index &&
+ git -C sparse sparse-checkout set dir1 dir2 &&
+
+ test_hook --clobber fsmonitor-test <<-\EOF &&
+ printf "last_update_token\0"
+ EOF
+ git -C full config core.fsmonitor ../.git/hooks/fsmonitor-test &&
+ git -C sparse config core.fsmonitor ../.git/hooks/fsmonitor-test &&
+ check_sparse_index_behavior ! &&
+
+ test_hook --clobber fsmonitor-test <<-\EOF &&
+ printf "last_update_token\0"
+ printf "dir1/modified\0"
+ EOF
+ check_sparse_index_behavior ! &&
+
+ git -C sparse sparse-checkout add dir1a &&
+
+ for repo in full sparse
+ do
+ cp -r $repo/dir1 $repo/dir1a &&
+ git -C $repo add dir1a &&
+ git -C $repo commit -m "add dir1a" || return 1
+ done &&
+ git -C sparse sparse-checkout set dir1 dir2 &&
+
+ # This one modifies outside the sparse-checkout definition
+ # and hence we expect to expand the sparse-index.
+ test_hook --clobber fsmonitor-test <<-\EOF &&
+ printf "last_update_token\0"
+ printf "dir1a/modified\0"
+ EOF
+ check_sparse_index_behavior
+ )
+'
+
+test_done