Merge branch 'uk/merge-subtree-doc-update' into maint

diff --git a/t/t1700-split-index.sh b/t/t1700-split-index.sh
index 39133bcbc85239183c3d73596f76f0486aeefcfe..f053bf83eb9f716c3dc99a3bdf1a8e3b49802163 100755 (executable)
--- a/t/t1700-split-index.sh
+++ b/t/t1700-split-index.sh
@@ -6,8 +6,18 @@ test_description='split index mode tests'
 
 # We need total control of index splitting here
 sane_unset GIT_TEST_SPLIT_INDEX
+# A couple of tests expect the index to have a specific checksum,
+# but the presence of the optional FSMN extension would interfere
+# with those checks, so disable it in this test script.
 sane_unset GIT_FSMONITOR_TEST
 
+# Create a file named as $1 with content read from stdin.
+# Set the file's mtime to a few seconds in the past to avoid racy situations.
+create_non_racy_file () {
+       cat >"$1" &&
+       test-tool chmtime =-5 "$1"
+}
+
 test_expect_success 'enable split index' '
        git config splitIndex.maxPercentChange 100 &&
        git update-index --split-index &&
@@ -31,7 +41,7 @@ test_expect_success 'enable split index' '
 '
 
 test_expect_success 'add one file' '
-       : >one &&
+       create_non_racy_file one &&
        git update-index --add one &&
        git ls-files --stage >ls-files.actual &&
        cat >ls-files.expect <<-EOF &&
@@ -57,7 +67,7 @@ test_expect_success 'disable split index' '
        EOF
        test_cmp ls-files.expect ls-files.actual &&
 
-       BASE=$(test-tool dump-split-index .git/index | grep "^own" | sed "s/own/base/") &&
+       BASE=$(test-tool dump-split-index .git/index | sed -n "s/^own/base/p") &&
        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
        cat >expect <<-EOF &&
        not a split index
@@ -83,7 +93,7 @@ test_expect_success 'enable split index again, "one" now belongs to base index"'
 '
 
 test_expect_success 'modify original file, base index untouched' '
-       echo modified >one &&
+       echo modified | create_non_racy_file one &&
        git update-index one &&
        git ls-files --stage >ls-files.actual &&
        cat >ls-files.expect <<-EOF &&
@@ -102,7 +112,7 @@ test_expect_success 'modify original file, base index untouched' '
 '
 
 test_expect_success 'add another file, which stays index' '
-       : >two &&
+       create_non_racy_file two &&
        git update-index --add two &&
        git ls-files --stage >ls-files.actual &&
        cat >ls-files.expect <<-EOF &&
@@ -143,9 +153,7 @@ test_expect_success 'remove file not in base index' '
 test_expect_success 'remove file in base index' '
        git update-index --force-remove one &&
        git ls-files --stage >ls-files.actual &&
-       cat >ls-files.expect <<-EOF &&
-       EOF
-       test_cmp ls-files.expect ls-files.actual &&
+       test_must_be_empty ls-files.actual &&
 
        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
        cat >expect <<-EOF &&
@@ -157,7 +165,7 @@ test_expect_success 'remove file in base index' '
 '
 
 test_expect_success 'add original file back' '
-       : >one &&
+       create_non_racy_file one &&
        git update-index --add one &&
        git ls-files --stage >ls-files.actual &&
        cat >ls-files.expect <<-EOF &&
@@ -176,7 +184,7 @@ test_expect_success 'add original file back' '
 '
 
 test_expect_success 'add new file' '
-       : >two &&
+       create_non_racy_file two &&
        git update-index --add two &&
        git ls-files --stage >actual &&
        cat >expect <<-EOF &&
@@ -220,7 +228,7 @@ test_expect_success 'rev-parse --shared-index-path' '
 
 test_expect_success 'set core.splitIndex config variable to true' '
        git config core.splitIndex true &&
-       : >three &&
+       create_non_racy_file three &&
        git update-index --add three &&
        git ls-files --stage >ls-files.actual &&
        cat >ls-files.expect <<-EOF &&
@@ -255,9 +263,9 @@ test_expect_success 'set core.splitIndex config variable to false' '
        test_cmp expect actual
 '
 
-test_expect_success 'set core.splitIndex config variable to true' '
+test_expect_success 'set core.splitIndex config variable back to true' '
        git config core.splitIndex true &&
-       : >three &&
+       create_non_racy_file three &&
        git update-index --add three &&
        BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
@@ -267,7 +275,7 @@ test_expect_success 'set core.splitIndex config variable to true' '
        deletions:
        EOF
        test_cmp expect actual &&
-       : >four &&
+       create_non_racy_file four &&
        git update-index --add four &&
        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
        cat >expect <<-EOF &&
@@ -281,7 +289,7 @@ test_expect_success 'set core.splitIndex config variable to true' '
 
 test_expect_success 'check behavior with splitIndex.maxPercentChange unset' '
        git config --unset splitIndex.maxPercentChange &&
-       : >five &&
+       create_non_racy_file five &&
        git update-index --add five &&
        BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
@@ -291,7 +299,7 @@ test_expect_success 'check behavior with splitIndex.maxPercentChange unset' '
        deletions:
        EOF
        test_cmp expect actual &&
-       : >six &&
+       create_non_racy_file six &&
        git update-index --add six &&
        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
        cat >expect <<-EOF &&
@@ -305,7 +313,7 @@ test_expect_success 'check behavior with splitIndex.maxPercentChange unset' '
 
 test_expect_success 'check splitIndex.maxPercentChange set to 0' '
        git config splitIndex.maxPercentChange 0 &&
-       : >seven &&
+       create_non_racy_file seven &&
        git update-index --add seven &&
        BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
@@ -315,7 +323,7 @@ test_expect_success 'check splitIndex.maxPercentChange set to 0' '
        deletions:
        EOF
        test_cmp expect actual &&
-       : >eight &&
+       create_non_racy_file eight &&
        git update-index --add eight &&
        BASE=$(test-tool dump-split-index .git/index | grep "^base") &&
        test-tool dump-split-index .git/index | sed "/^own/d" >actual &&
@@ -328,17 +336,17 @@ test_expect_success 'check splitIndex.maxPercentChange set to 0' '
 '
 
 test_expect_success 'shared index files expire after 2 weeks by default' '
-       : >ten &&
+       create_non_racy_file ten &&
        git update-index --add ten &&
        test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
        just_under_2_weeks_ago=$((5-14*86400)) &&
        test-tool chmtime =$just_under_2_weeks_ago .git/sharedindex.* &&
-       : >eleven &&
+       create_non_racy_file eleven &&
        git update-index --add eleven &&
        test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
        just_over_2_weeks_ago=$((-1-14*86400)) &&
        test-tool chmtime =$just_over_2_weeks_ago .git/sharedindex.* &&
-       : >twelve &&
+       create_non_racy_file twelve &&
        git update-index --add twelve &&
        test $(ls .git/sharedindex.* | wc -l) -le 2
 '
@@ -346,12 +354,12 @@ test_expect_success 'shared index files expire after 2 weeks by default' '
 test_expect_success 'check splitIndex.sharedIndexExpire set to 16 days' '
        git config splitIndex.sharedIndexExpire "16.days.ago" &&
        test-tool chmtime =$just_over_2_weeks_ago .git/sharedindex.* &&
-       : >thirteen &&
+       create_non_racy_file thirteen &&
        git update-index --add thirteen &&
        test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
        just_over_16_days_ago=$((-1-16*86400)) &&
        test-tool chmtime =$just_over_16_days_ago .git/sharedindex.* &&
-       : >fourteen &&
+       create_non_racy_file fourteen &&
        git update-index --add fourteen &&
        test $(ls .git/sharedindex.* | wc -l) -le 2
 '
@@ -360,13 +368,13 @@ test_expect_success 'check splitIndex.sharedIndexExpire set to "never" and "now"
        git config splitIndex.sharedIndexExpire never &&
        just_10_years_ago=$((-365*10*86400)) &&
        test-tool chmtime =$just_10_years_ago .git/sharedindex.* &&
-       : >fifteen &&
+       create_non_racy_file fifteen &&
        git update-index --add fifteen &&
        test $(ls .git/sharedindex.* | wc -l) -gt 2 &&
        git config splitIndex.sharedIndexExpire now &&
        just_1_second_ago=-1 &&
        test-tool chmtime =$just_1_second_ago .git/sharedindex.* &&
-       : >sixteen &&
+       create_non_racy_file sixteen &&
        git update-index --add sixteen &&
        test $(ls .git/sharedindex.* | wc -l) -le 2
 '
@@ -381,7 +389,7 @@ do
                # Create one new shared index file
                git config core.sharedrepository "$mode" &&
                git config core.splitIndex true &&
-               : >one &&
+               create_non_racy_file one &&
                git update-index --add one &&
                echo "$modebits" >expect &&
                test_modebits .git/index >actual &&