git/t/t7814-grep-recurse-submodules.sh
Nguyễn Thái Ngọc Duy 663d25018f t7814: do not generate same commits in different repos
t7814 has repo tree like this

  initial-repo
    submodule
      sub

In each repo 'submodule' and 'sub', a commit is made to add the same
initial file 'a' with the same message 'add a'. If tests run fast
enough, the two commits are made in the same second, resulting
identical commits.

There is nothing wrong with that per-se. But it could make the test
flaky. Currently all submodule odbs are merged back in the main
one (because we can't, or couldn't, access separate submodule repos
otherwise). But eventually we need to access objects from the right
repo.

Because the same commit could sometimes be present in both 'submodule'
and 'sub', if there is a bug looking up objects in the wrong repo,
sometimes it will go unnoticed because it finds the needed object in the
wrong repo anyway.

Fix this by changing commit time after every commit. This makes all
commits unique. Of course there are still identical blobs in different
repos, but because we often lookup commit first, then tree and blob,
unique commits are already quite safe.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-28 09:32:23 -07:00

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#!/bin/sh
test_description='Test grep recurse-submodules feature
This test verifies the recurse-submodules feature correctly greps across
submodules.
'
. ./test-lib.sh
test_expect_success 'setup directory structure and submodule' '
echo "(1|2)d(3|4)" >a &&
mkdir b &&
echo "(3|4)" >b/b &&
git add a b &&
git commit -m "add a and b" &&
test_tick &&
git init submodule &&
echo "(1|2)d(3|4)" >submodule/a &&
git -C submodule add a &&
git -C submodule commit -m "add a" &&
git submodule add ./submodule &&
git commit -m "added submodule" &&
test_tick
'
test_expect_success 'grep correctly finds patterns in a submodule' '
cat >expect <<-\EOF &&
a:(1|2)d(3|4)
b/b:(3|4)
submodule/a:(1|2)d(3|4)
EOF
git grep -e "(3|4)" --recurse-submodules >actual &&
test_cmp expect actual
'
test_expect_success 'grep finds patterns in a submodule via config' '
test_config submodule.recurse true &&
# expect from previous test
git grep -e "(3|4)" >actual &&
test_cmp expect actual
'
test_expect_success 'grep --no-recurse-submodules overrides config' '
test_config submodule.recurse true &&
cat >expect <<-\EOF &&
a:(1|2)d(3|4)
b/b:(3|4)
EOF
git grep -e "(3|4)" --no-recurse-submodules >actual &&
test_cmp expect actual
'
test_expect_success 'grep and basic pathspecs' '
cat >expect <<-\EOF &&
submodule/a:(1|2)d(3|4)
EOF
git grep -e. --recurse-submodules -- submodule >actual &&
test_cmp expect actual
'
test_expect_success 'grep and nested submodules' '
git init submodule/sub &&
echo "(1|2)d(3|4)" >submodule/sub/a &&
git -C submodule/sub add a &&
git -C submodule/sub commit -m "add a" &&
test_tick &&
git -C submodule submodule add ./sub &&
git -C submodule add sub &&
git -C submodule commit -m "added sub" &&
test_tick &&
git add submodule &&
git commit -m "updated submodule" &&
test_tick &&
cat >expect <<-\EOF &&
a:(1|2)d(3|4)
b/b:(3|4)
submodule/a:(1|2)d(3|4)
submodule/sub/a:(1|2)d(3|4)
EOF
git grep -e "(3|4)" --recurse-submodules >actual &&
test_cmp expect actual
'
test_expect_success 'grep and multiple patterns' '
cat >expect <<-\EOF &&
a:(1|2)d(3|4)
submodule/a:(1|2)d(3|4)
submodule/sub/a:(1|2)d(3|4)
EOF
git grep -e "(3|4)" --and -e "(1|2)" --recurse-submodules >actual &&
test_cmp expect actual
'
test_expect_success 'grep and multiple patterns' '
cat >expect <<-\EOF &&
b/b:(3|4)
EOF
git grep -e "(3|4)" --and --not -e "(1|2)" --recurse-submodules >actual &&
test_cmp expect actual
'
test_expect_success 'basic grep tree' '
cat >expect <<-\EOF &&
HEAD:a:(1|2)d(3|4)
HEAD:b/b:(3|4)
HEAD:submodule/a:(1|2)d(3|4)
HEAD:submodule/sub/a:(1|2)d(3|4)
EOF
git grep -e "(3|4)" --recurse-submodules HEAD >actual &&
test_cmp expect actual
'
test_expect_success 'grep tree HEAD^' '
cat >expect <<-\EOF &&
HEAD^:a:(1|2)d(3|4)
HEAD^:b/b:(3|4)
HEAD^:submodule/a:(1|2)d(3|4)
EOF
git grep -e "(3|4)" --recurse-submodules HEAD^ >actual &&
test_cmp expect actual
'
test_expect_success 'grep tree HEAD^^' '
cat >expect <<-\EOF &&
HEAD^^:a:(1|2)d(3|4)
HEAD^^:b/b:(3|4)
EOF
git grep -e "(3|4)" --recurse-submodules HEAD^^ >actual &&
test_cmp expect actual
'
test_expect_success 'grep tree and pathspecs' '
cat >expect <<-\EOF &&
HEAD:submodule/a:(1|2)d(3|4)
HEAD:submodule/sub/a:(1|2)d(3|4)
EOF
git grep -e "(3|4)" --recurse-submodules HEAD -- submodule >actual &&
test_cmp expect actual
'
test_expect_success 'grep tree and pathspecs' '
cat >expect <<-\EOF &&
HEAD:submodule/a:(1|2)d(3|4)
HEAD:submodule/sub/a:(1|2)d(3|4)
EOF
git grep -e "(3|4)" --recurse-submodules HEAD -- "submodule*a" >actual &&
test_cmp expect actual
'
test_expect_success 'grep tree and more pathspecs' '
cat >expect <<-\EOF &&
HEAD:submodule/a:(1|2)d(3|4)
EOF
git grep -e "(3|4)" --recurse-submodules HEAD -- "submodul?/a" >actual &&
test_cmp expect actual
'
test_expect_success 'grep tree and more pathspecs' '
cat >expect <<-\EOF &&
HEAD:submodule/sub/a:(1|2)d(3|4)
EOF
git grep -e "(3|4)" --recurse-submodules HEAD -- "submodul*/sub/a" >actual &&
test_cmp expect actual
'
test_expect_success !MINGW 'grep recurse submodule colon in name' '
git init parent &&
test_when_finished "rm -rf parent" &&
echo "(1|2)d(3|4)" >"parent/fi:le" &&
git -C parent add "fi:le" &&
git -C parent commit -m "add fi:le" &&
test_tick &&
git init "su:b" &&
test_when_finished "rm -rf su:b" &&
echo "(1|2)d(3|4)" >"su:b/fi:le" &&
git -C "su:b" add "fi:le" &&
git -C "su:b" commit -m "add fi:le" &&
test_tick &&
git -C parent submodule add "../su:b" "su:b" &&
git -C parent commit -m "add submodule" &&
test_tick &&
cat >expect <<-\EOF &&
fi:le:(1|2)d(3|4)
su:b/fi:le:(1|2)d(3|4)
EOF
git -C parent grep -e "(1|2)d(3|4)" --recurse-submodules >actual &&
test_cmp expect actual &&
cat >expect <<-\EOF &&
HEAD:fi:le:(1|2)d(3|4)
HEAD:su:b/fi:le:(1|2)d(3|4)
EOF
git -C parent grep -e "(1|2)d(3|4)" --recurse-submodules HEAD >actual &&
test_cmp expect actual
'
test_expect_success 'grep history with moved submoules' '
git init parent &&
test_when_finished "rm -rf parent" &&
echo "(1|2)d(3|4)" >parent/file &&
git -C parent add file &&
git -C parent commit -m "add file" &&
test_tick &&
git init sub &&
test_when_finished "rm -rf sub" &&
echo "(1|2)d(3|4)" >sub/file &&
git -C sub add file &&
git -C sub commit -m "add file" &&
test_tick &&
git -C parent submodule add ../sub dir/sub &&
git -C parent commit -m "add submodule" &&
test_tick &&
cat >expect <<-\EOF &&
dir/sub/file:(1|2)d(3|4)
file:(1|2)d(3|4)
EOF
git -C parent grep -e "(1|2)d(3|4)" --recurse-submodules >actual &&
test_cmp expect actual &&
git -C parent mv dir/sub sub-moved &&
git -C parent commit -m "moved submodule" &&
test_tick &&
cat >expect <<-\EOF &&
file:(1|2)d(3|4)
sub-moved/file:(1|2)d(3|4)
EOF
git -C parent grep -e "(1|2)d(3|4)" --recurse-submodules >actual &&
test_cmp expect actual &&
cat >expect <<-\EOF &&
HEAD^:dir/sub/file:(1|2)d(3|4)
HEAD^:file:(1|2)d(3|4)
EOF
git -C parent grep -e "(1|2)d(3|4)" --recurse-submodules HEAD^ >actual &&
test_cmp expect actual
'
test_expect_success 'grep using relative path' '
test_when_finished "rm -rf parent sub" &&
git init sub &&
echo "(1|2)d(3|4)" >sub/file &&
git -C sub add file &&
git -C sub commit -m "add file" &&
test_tick &&
git init parent &&
echo "(1|2)d(3|4)" >parent/file &&
git -C parent add file &&
mkdir parent/src &&
echo "(1|2)d(3|4)" >parent/src/file2 &&
git -C parent add src/file2 &&
git -C parent submodule add ../sub &&
git -C parent commit -m "add files and submodule" &&
test_tick &&
# From top works
cat >expect <<-\EOF &&
file:(1|2)d(3|4)
src/file2:(1|2)d(3|4)
sub/file:(1|2)d(3|4)
EOF
git -C parent grep --recurse-submodules -e "(1|2)d(3|4)" >actual &&
test_cmp expect actual &&
# Relative path to top
cat >expect <<-\EOF &&
../file:(1|2)d(3|4)
file2:(1|2)d(3|4)
../sub/file:(1|2)d(3|4)
EOF
git -C parent/src grep --recurse-submodules -e "(1|2)d(3|4)" -- .. >actual &&
test_cmp expect actual &&
# Relative path to submodule
cat >expect <<-\EOF &&
../sub/file:(1|2)d(3|4)
EOF
git -C parent/src grep --recurse-submodules -e "(1|2)d(3|4)" -- ../sub >actual &&
test_cmp expect actual
'
test_expect_success 'grep from a subdir' '
test_when_finished "rm -rf parent sub" &&
git init sub &&
echo "(1|2)d(3|4)" >sub/file &&
git -C sub add file &&
git -C sub commit -m "add file" &&
test_tick &&
git init parent &&
mkdir parent/src &&
echo "(1|2)d(3|4)" >parent/src/file &&
git -C parent add src/file &&
git -C parent submodule add ../sub src/sub &&
git -C parent submodule add ../sub sub &&
git -C parent commit -m "add files and submodules" &&
test_tick &&
# Verify grep from root works
cat >expect <<-\EOF &&
src/file:(1|2)d(3|4)
src/sub/file:(1|2)d(3|4)
sub/file:(1|2)d(3|4)
EOF
git -C parent grep --recurse-submodules -e "(1|2)d(3|4)" >actual &&
test_cmp expect actual &&
# Verify grep from a subdir works
cat >expect <<-\EOF &&
file:(1|2)d(3|4)
sub/file:(1|2)d(3|4)
EOF
git -C parent/src grep --recurse-submodules -e "(1|2)d(3|4)" >actual &&
test_cmp expect actual
'
test_incompatible_with_recurse_submodules ()
{
test_expect_success "--recurse-submodules and $1 are incompatible" "
test_must_fail git grep -e. --recurse-submodules $1 2>actual &&
test_i18ngrep 'not supported with --recurse-submodules' actual
"
}
test_incompatible_with_recurse_submodules --untracked
test_incompatible_with_recurse_submodules --no-index
test_expect_success 'grep --recurse-submodules should pass the pattern type along' '
# Fixed
test_must_fail git grep -F --recurse-submodules -e "(.|.)[\d]" &&
test_must_fail git -c grep.patternType=fixed grep --recurse-submodules -e "(.|.)[\d]" &&
# Basic
git grep -G --recurse-submodules -e "(.|.)[\d]" >actual &&
cat >expect <<-\EOF &&
a:(1|2)d(3|4)
submodule/a:(1|2)d(3|4)
submodule/sub/a:(1|2)d(3|4)
EOF
test_cmp expect actual &&
git -c grep.patternType=basic grep --recurse-submodules -e "(.|.)[\d]" >actual &&
test_cmp expect actual &&
# Extended
git grep -E --recurse-submodules -e "(.|.)[\d]" >actual &&
cat >expect <<-\EOF &&
.gitmodules:[submodule "submodule"]
.gitmodules: path = submodule
.gitmodules: url = ./submodule
a:(1|2)d(3|4)
submodule/.gitmodules:[submodule "sub"]
submodule/a:(1|2)d(3|4)
submodule/sub/a:(1|2)d(3|4)
EOF
test_cmp expect actual &&
git -c grep.patternType=extended grep --recurse-submodules -e "(.|.)[\d]" >actual &&
test_cmp expect actual &&
git -c grep.extendedRegexp=true grep --recurse-submodules -e "(.|.)[\d]" >actual &&
test_cmp expect actual &&
# Perl
if test_have_prereq PCRE
then
git grep -P --recurse-submodules -e "(.|.)[\d]" >actual &&
cat >expect <<-\EOF &&
a:(1|2)d(3|4)
b/b:(3|4)
submodule/a:(1|2)d(3|4)
submodule/sub/a:(1|2)d(3|4)
EOF
test_cmp expect actual &&
git -c grep.patternType=perl grep --recurse-submodules -e "(.|.)[\d]" >actual &&
test_cmp expect actual
fi
'
test_expect_success 'grep --recurse-submodules with submodules without .gitmodules in the working tree' '
test_when_finished "git -C submodule checkout .gitmodules" &&
rm submodule/.gitmodules &&
git grep --recurse-submodules -e "(.|.)[\d]" >actual &&
cat >expect <<-\EOF &&
a:(1|2)d(3|4)
submodule/a:(1|2)d(3|4)
submodule/sub/a:(1|2)d(3|4)
EOF
test_cmp expect actual
'
test_done