git/t/t6403-merge-file.sh

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#!/bin/sh
test_description='RCS merge replacement: merge-file'
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
test_expect_success 'setup' '
cat >orig.txt <<-\EOF &&
Dominus regit me,
et nihil mihi deerit.
In loco pascuae ibi me collocavit,
super aquam refectionis educavit me;
animam meam convertit,
deduxit me super semitas jusitiae,
propter nomen suum.
EOF
cat >new1.txt <<-\EOF &&
Dominus regit me,
et nihil mihi deerit.
In loco pascuae ibi me collocavit,
super aquam refectionis educavit me;
animam meam convertit,
deduxit me super semitas jusitiae,
propter nomen suum.
Nam et si ambulavero in medio umbrae mortis,
non timebo mala, quoniam tu mecum es:
virga tua et baculus tuus ipsa me consolata sunt.
EOF
cat >new2.txt <<-\EOF &&
Dominus regit me, et nihil mihi deerit.
In loco pascuae ibi me collocavit,
super aquam refectionis educavit me;
animam meam convertit,
deduxit me super semitas jusitiae,
propter nomen suum.
EOF
cat >new3.txt <<-\EOF &&
DOMINUS regit me,
et nihil mihi deerit.
In loco pascuae ibi me collocavit,
super aquam refectionis educavit me;
animam meam convertit,
deduxit me super semitas jusitiae,
propter nomen suum.
EOF
cat >new4.txt <<-\EOF &&
Dominus regit me, et nihil mihi deerit.
In loco pascuae ibi me collocavit,
super aquam refectionis educavit me;
animam meam convertit,
deduxit me super semitas jusitiae,
EOF
printf "propter nomen suum." >>new4.txt &&
cat >base.c <<-\EOF &&
int f(int x, int y)
{
if (x == 0)
{
return y;
}
return x;
}
int g(size_t u)
{
while (u < 30)
{
u++;
}
return u;
}
EOF
cat >ours.c <<-\EOF &&
int g(size_t u)
{
while (u < 30)
{
u++;
}
return u;
}
int h(int x, int y, int z)
{
if (z == 0)
{
return x;
}
return y;
}
EOF
cat >theirs.c <<-\EOF
int f(int x, int y)
{
if (x == 0)
{
return y;
}
return x;
}
int g(size_t u)
{
while (u > 34)
{
u--;
}
return u;
}
EOF
'
test_expect_success 'merge with no changes' '
cp orig.txt test.txt &&
git merge-file test.txt orig.txt orig.txt &&
test_cmp test.txt orig.txt
'
test_expect_success 'merge with no changes with --object-id' '
git add orig.txt &&
git merge-file -p --object-id :orig.txt :orig.txt :orig.txt >actual &&
test_cmp actual orig.txt
'
test_expect_success "merge without conflict" '
cp new1.txt test.txt &&
git merge-file test.txt orig.txt new2.txt
'
test_expect_success 'merge without conflict with --object-id' '
git add orig.txt new2.txt &&
git merge-file --object-id :orig.txt :orig.txt :new2.txt >actual &&
git rev-parse :new2.txt >expected &&
test_cmp actual expected
'
test_expect_success 'can accept object ID with --object-id' '
git merge-file --object-id $(test_oid empty_blob) $(test_oid empty_blob) :new2.txt >actual &&
git rev-parse :new2.txt >expected &&
test_cmp actual expected
'
test_expect_success 'works in subdirectory' '
mkdir dir &&
cp new1.txt dir/a.txt &&
cp orig.txt dir/o.txt &&
cp new2.txt dir/b.txt &&
( cd dir && git merge-file a.txt o.txt b.txt ) &&
test_path_is_missing a.txt
'
test_expect_success "merge without conflict (--quiet)" '
cp new1.txt test.txt &&
git merge-file --quiet test.txt orig.txt new2.txt
'
test_expect_failure "merge without conflict (missing LF at EOF)" '
cp new1.txt test2.txt &&
git merge-file test2.txt orig.txt new4.txt
'
test_expect_failure "merge result added missing LF" '
test_cmp test.txt test2.txt
'
test_expect_success "merge without conflict (missing LF at EOF, away from change in the other file)" '
cp new4.txt test3.txt &&
git merge-file --quiet test3.txt new2.txt new3.txt
'
test_expect_success "merge does not add LF away of change" '
cat >expect.txt <<-\EOF &&
DOMINUS regit me,
et nihil mihi deerit.
In loco pascuae ibi me collocavit,
super aquam refectionis educavit me;
animam meam convertit,
deduxit me super semitas jusitiae,
EOF
printf "propter nomen suum." >>expect.txt &&
test_cmp expect.txt test3.txt
'
test_expect_success "merge with conflicts" '
cp test.txt backup.txt &&
test_must_fail git merge-file test.txt orig.txt new3.txt
'
test_expect_success "expected conflict markers" '
cat >expect.txt <<-\EOF &&
<<<<<<< test.txt
Dominus regit me, et nihil mihi deerit.
=======
DOMINUS regit me,
et nihil mihi deerit.
>>>>>>> new3.txt
In loco pascuae ibi me collocavit,
super aquam refectionis educavit me;
animam meam convertit,
deduxit me super semitas jusitiae,
propter nomen suum.
Nam et si ambulavero in medio umbrae mortis,
non timebo mala, quoniam tu mecum es:
virga tua et baculus tuus ipsa me consolata sunt.
EOF
test_cmp expect.txt test.txt
'
test_expect_success "merge with conflicts with --object-id" '
git add backup.txt orig.txt new3.txt &&
test_must_fail git merge-file -p --object-id :backup.txt :orig.txt :new3.txt >actual &&
sed -e "s/<< test.txt/<< :backup.txt/" \
-e "s/>> new3.txt/>> :new3.txt/" \
expect.txt >expect &&
test_cmp expect actual &&
test_must_fail git merge-file --object-id :backup.txt :orig.txt :new3.txt >oid &&
git cat-file blob "$(cat oid)" >actual &&
test_cmp expect actual
'
test_expect_success "merge with conflicts with --object-id with labels" '
git add backup.txt orig.txt new3.txt &&
test_must_fail git merge-file -p --object-id \
-L test.txt -L orig.txt -L new3.txt \
:backup.txt :orig.txt :new3.txt >actual &&
test_cmp expect.txt actual &&
test_must_fail git merge-file --object-id \
-L test.txt -L orig.txt -L new3.txt \
:backup.txt :orig.txt :new3.txt >oid &&
git cat-file blob "$(cat oid)" >actual &&
test_cmp expect.txt actual
'
test_expect_success "merge conflicting with --ours" '
cp backup.txt test.txt &&
cat >expect.txt <<-\EOF &&
Dominus regit me, et nihil mihi deerit.
In loco pascuae ibi me collocavit,
super aquam refectionis educavit me;
animam meam convertit,
deduxit me super semitas jusitiae,
propter nomen suum.
Nam et si ambulavero in medio umbrae mortis,
non timebo mala, quoniam tu mecum es:
virga tua et baculus tuus ipsa me consolata sunt.
EOF
git merge-file --ours test.txt orig.txt new3.txt &&
test_cmp expect.txt test.txt
'
test_expect_success "merge conflicting with --theirs" '
cp backup.txt test.txt &&
cat >expect.txt <<-\EOF &&
DOMINUS regit me,
et nihil mihi deerit.
In loco pascuae ibi me collocavit,
super aquam refectionis educavit me;
animam meam convertit,
deduxit me super semitas jusitiae,
propter nomen suum.
Nam et si ambulavero in medio umbrae mortis,
non timebo mala, quoniam tu mecum es:
virga tua et baculus tuus ipsa me consolata sunt.
EOF
git merge-file --theirs test.txt orig.txt new3.txt &&
test_cmp expect.txt test.txt
'
test_expect_success "merge conflicting with --union" '
cp backup.txt test.txt &&
cat >expect.txt <<-\EOF &&
Dominus regit me, et nihil mihi deerit.
DOMINUS regit me,
et nihil mihi deerit.
In loco pascuae ibi me collocavit,
super aquam refectionis educavit me;
animam meam convertit,
deduxit me super semitas jusitiae,
propter nomen suum.
Nam et si ambulavero in medio umbrae mortis,
non timebo mala, quoniam tu mecum es:
virga tua et baculus tuus ipsa me consolata sunt.
EOF
git merge-file --union test.txt orig.txt new3.txt &&
test_cmp expect.txt test.txt
'
test_expect_success "merge with conflicts, using -L" '
cp backup.txt test.txt &&
test_must_fail git merge-file -L 1 -L 2 test.txt orig.txt new3.txt
'
test_expect_success "expected conflict markers, with -L" '
cat >expect.txt <<-\EOF &&
<<<<<<< 1
Dominus regit me, et nihil mihi deerit.
=======
DOMINUS regit me,
et nihil mihi deerit.
>>>>>>> new3.txt
In loco pascuae ibi me collocavit,
super aquam refectionis educavit me;
animam meam convertit,
deduxit me super semitas jusitiae,
propter nomen suum.
Nam et si ambulavero in medio umbrae mortis,
non timebo mala, quoniam tu mecum es:
virga tua et baculus tuus ipsa me consolata sunt.
EOF
test_cmp expect.txt test.txt
'
test_expect_success "conflict in removed tail" '
sed "s/ tu / TU /" <new1.txt >new5.txt &&
test_must_fail git merge-file -p orig.txt new1.txt new5.txt >out
'
test_expect_success "expected conflict markers" '
cat >expect <<-\EOF &&
Dominus regit me,
et nihil mihi deerit.
In loco pascuae ibi me collocavit,
super aquam refectionis educavit me;
animam meam convertit,
deduxit me super semitas jusitiae,
propter nomen suum.
<<<<<<< orig.txt
=======
Nam et si ambulavero in medio umbrae mortis,
non timebo mala, quoniam TU mecum es:
virga tua et baculus tuus ipsa me consolata sunt.
>>>>>>> new5.txt
EOF
test_cmp expect out
'
test_expect_success 'binary files cannot be merged' '
test_must_fail git merge-file -p \
orig.txt "$TEST_DIRECTORY"/test-binary-1.png new1.txt 2> merge.err &&
grep "Cannot merge binary files" merge.err
'
test_expect_success 'binary files cannot be merged with --object-id' '
cp "$TEST_DIRECTORY"/test-binary-1.png . &&
git add orig.txt new1.txt test-binary-1.png &&
test_must_fail git merge-file --object-id \
:orig.txt :test-binary-1.png :new1.txt 2> merge.err &&
grep "Cannot merge binary files" merge.err
'
test_expect_success 'MERGE_ZEALOUS simplifies non-conflicts' '
sed -e "s/deerit.\$/deerit;/" -e "s/me;\$/me./" <new5.txt >new6.txt &&
sed -e "s/deerit.\$/deerit,/" -e "s/me;\$/me,/" <new5.txt >new7.txt &&
test_must_fail git merge-file -p new6.txt new5.txt new7.txt > output &&
test 1 = $(grep ======= <output | wc -l)
'
test_expect_success 'ZEALOUS_ALNUM' '
sed -e "s/deerit./&%%%%/" -e "s/locavit,/locavit;/" <new6.txt | tr % "\012" >new8.txt &&
sed -e "s/deerit./&%%%%/" -e "s/locavit,/locavit --/" <new7.txt | tr % "\012" >new9.txt &&
test_must_fail git merge-file -p \
new8.txt new5.txt new9.txt >merge.out &&
test 1 = $(grep ======= <merge.out | wc -l)
'
test_expect_success '"diff3 -m" style output (1)' '
cat >expect <<-\EOF &&
Dominus regit me,
<<<<<<< new8.txt
et nihil mihi deerit;
In loco pascuae ibi me collocavit;
super aquam refectionis educavit me.
||||||| new5.txt
et nihil mihi deerit.
In loco pascuae ibi me collocavit,
super aquam refectionis educavit me;
=======
et nihil mihi deerit,
In loco pascuae ibi me collocavit --
super aquam refectionis educavit me,
>>>>>>> new9.txt
animam meam convertit,
deduxit me super semitas jusitiae,
propter nomen suum.
Nam et si ambulavero in medio umbrae mortis,
non timebo mala, quoniam TU mecum es:
virga tua et baculus tuus ipsa me consolata sunt.
EOF
test_must_fail git merge-file -p --diff3 \
new8.txt new5.txt new9.txt >actual &&
test_cmp expect actual
'
test_expect_success '"diff3 -m" style output (2)' '
git config merge.conflictstyle diff3 &&
test_must_fail git merge-file -p \
new8.txt new5.txt new9.txt >actual &&
test_cmp expect actual
'
test_expect_success 'marker size' '
cat >expect <<-\EOF &&
Dominus regit me,
<<<<<<<<<< new8.txt
et nihil mihi deerit;
In loco pascuae ibi me collocavit;
super aquam refectionis educavit me.
|||||||||| new5.txt
et nihil mihi deerit.
In loco pascuae ibi me collocavit,
super aquam refectionis educavit me;
==========
et nihil mihi deerit,
In loco pascuae ibi me collocavit --
super aquam refectionis educavit me,
>>>>>>>>>> new9.txt
animam meam convertit,
deduxit me super semitas jusitiae,
propter nomen suum.
Nam et si ambulavero in medio umbrae mortis,
non timebo mala, quoniam TU mecum es:
virga tua et baculus tuus ipsa me consolata sunt.
EOF
test_must_fail git merge-file -p --marker-size=10 \
new8.txt new5.txt new9.txt >actual &&
test_cmp expect actual
'
test_expect_success 'conflict at EOF without LF resolved by --ours' '
printf "line1\nline2\nline3" >nolf-orig.txt &&
printf "line1\nline2\nline3x" >nolf-diff1.txt &&
printf "line1\nline2\nline3y" >nolf-diff2.txt &&
git merge-file -p --ours nolf-diff1.txt nolf-orig.txt nolf-diff2.txt >output.txt &&
printf "line1\nline2\nline3x" >expect.txt &&
test_cmp expect.txt output.txt
'
test_expect_success 'conflict at EOF without LF resolved by --theirs' '
git merge-file -p --theirs nolf-diff1.txt nolf-orig.txt nolf-diff2.txt >output.txt &&
printf "line1\nline2\nline3y" >expect.txt &&
test_cmp expect.txt output.txt
'
test_expect_success 'conflict at EOF without LF resolved by --union' '
git merge-file -p --union nolf-diff1.txt nolf-orig.txt nolf-diff2.txt >output.txt &&
printf "line1\nline2\nline3x\nline3y" >expect.txt &&
test_cmp expect.txt output.txt
'
test_expect_success 'conflict sections match existing line endings' '
printf "1\\r\\n2\\r\\n3" >crlf-orig.txt &&
printf "1\\r\\n2\\r\\n4" >crlf-diff1.txt &&
printf "1\\r\\n2\\r\\n5" >crlf-diff2.txt &&
test_must_fail git -c core.eol=crlf merge-file -p \
crlf-diff1.txt crlf-orig.txt crlf-diff2.txt >crlf.txt &&
test $(tr "\015" Q <crlf.txt | grep "^[<=>].*Q$" | wc -l) = 3 &&
test $(tr "\015" Q <crlf.txt | grep "[345]Q$" | wc -l) = 3 &&
test_must_fail git -c core.eol=crlf merge-file -p \
nolf-diff1.txt nolf-orig.txt nolf-diff2.txt >nolf.txt &&
test $(tr "\015" Q <nolf.txt | grep "^[<=>].*Q$" | wc -l) = 0
'
test_expect_success '--object-id fails without repository' '
empty="$(test_oid empty_blob)" &&
nongit test_must_fail git merge-file --object-id $empty $empty $empty 2>err &&
grep "not a git repository" err
'
test_expect_success 'merging C files with "myers" diff algorithm creates some spurious conflicts' '
cat >expect.c <<-\EOF &&
int g(size_t u)
{
while (u < 30)
{
u++;
}
return u;
}
int h(int x, int y, int z)
{
<<<<<<< ours.c
if (z == 0)
||||||| base.c
while (u < 30)
=======
while (u > 34)
>>>>>>> theirs.c
{
<<<<<<< ours.c
return x;
||||||| base.c
u++;
=======
u--;
>>>>>>> theirs.c
}
return y;
}
EOF
test_must_fail git merge-file -p --diff3 --diff-algorithm myers ours.c base.c theirs.c >myers_output.c &&
test_cmp expect.c myers_output.c
'
test_expect_success 'merging C files with "histogram" diff algorithm avoids some spurious conflicts' '
cat >expect.c <<-\EOF &&
int g(size_t u)
{
while (u > 34)
{
u--;
}
return u;
}
int h(int x, int y, int z)
{
if (z == 0)
{
return x;
}
return y;
}
EOF
git merge-file -p --diff3 --diff-algorithm histogram ours.c base.c theirs.c >histogram_output.c &&
test_cmp expect.c histogram_output.c
'
test_done