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The function xdl_refine_conflicts() tries to break down huge conflicts by doing a diff on the conflicting regions. However, this does not make sense when one side is empty. Worse, when one side is not only empty, but after EOF, the code accessed unmapped memory. Noticed by Luben Tuikov, Shawn Pearce and Alexandre Julliard, the latter providing a test case. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
138 lines
3.5 KiB
Bash
138 lines
3.5 KiB
Bash
#!/bin/sh
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test_description='RCS merge replacement: merge-file'
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. ./test-lib.sh
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cat > orig.txt << EOF
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Dominus regit me,
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et nihil mihi deerit.
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In loco pascuae ibi me collocavit,
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super aquam refectionis educavit me;
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animam meam convertit,
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deduxit me super semitas jusitiae,
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propter nomen suum.
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EOF
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cat > new1.txt << EOF
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Dominus regit me,
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et nihil mihi deerit.
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In loco pascuae ibi me collocavit,
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super aquam refectionis educavit me;
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animam meam convertit,
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deduxit me super semitas jusitiae,
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propter nomen suum.
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Nam et si ambulavero in medio umbrae mortis,
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non timebo mala, quoniam tu mecum es:
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virga tua et baculus tuus ipsa me consolata sunt.
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EOF
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cat > new2.txt << EOF
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Dominus regit me, et nihil mihi deerit.
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In loco pascuae ibi me collocavit,
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super aquam refectionis educavit me;
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animam meam convertit,
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deduxit me super semitas jusitiae,
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propter nomen suum.
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EOF
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cat > new3.txt << EOF
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DOMINUS regit me,
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et nihil mihi deerit.
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In loco pascuae ibi me collocavit,
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super aquam refectionis educavit me;
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animam meam convertit,
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deduxit me super semitas jusitiae,
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propter nomen suum.
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EOF
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cat > new4.txt << EOF
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Dominus regit me, et nihil mihi deerit.
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In loco pascuae ibi me collocavit,
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super aquam refectionis educavit me;
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animam meam convertit,
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deduxit me super semitas jusitiae,
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EOF
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echo -n "propter nomen suum." >> new4.txt
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cp new1.txt test.txt
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test_expect_success "merge without conflict" \
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"git-merge-file test.txt orig.txt new2.txt"
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cp new1.txt test2.txt
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test_expect_success "merge without conflict (missing LF at EOF)" \
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"git-merge-file test2.txt orig.txt new2.txt"
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test_expect_success "merge result added missing LF" \
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"diff -u test.txt test2.txt"
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cp test.txt backup.txt
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test_expect_failure "merge with conflicts" \
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"git-merge-file test.txt orig.txt new3.txt"
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cat > expect.txt << EOF
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<<<<<<< test.txt
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Dominus regit me, et nihil mihi deerit.
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=======
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DOMINUS regit me,
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et nihil mihi deerit.
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>>>>>>> new3.txt
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In loco pascuae ibi me collocavit,
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super aquam refectionis educavit me;
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animam meam convertit,
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deduxit me super semitas jusitiae,
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propter nomen suum.
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Nam et si ambulavero in medio umbrae mortis,
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non timebo mala, quoniam tu mecum es:
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virga tua et baculus tuus ipsa me consolata sunt.
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EOF
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test_expect_success "expected conflict markers" "diff -u test.txt expect.txt"
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cp backup.txt test.txt
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test_expect_failure "merge with conflicts, using -L" \
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"git-merge-file -L 1 -L 2 test.txt orig.txt new3.txt"
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cat > expect.txt << EOF
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<<<<<<< 1
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Dominus regit me, et nihil mihi deerit.
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=======
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DOMINUS regit me,
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et nihil mihi deerit.
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>>>>>>> new3.txt
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In loco pascuae ibi me collocavit,
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super aquam refectionis educavit me;
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animam meam convertit,
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deduxit me super semitas jusitiae,
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propter nomen suum.
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Nam et si ambulavero in medio umbrae mortis,
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non timebo mala, quoniam tu mecum es:
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virga tua et baculus tuus ipsa me consolata sunt.
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EOF
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test_expect_success "expected conflict markers, with -L" \
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"diff -u test.txt expect.txt"
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sed "s/ tu / TU /" < new1.txt > new5.txt
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test_expect_failure "conflict in removed tail" \
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"git-merge-file -p orig.txt new1.txt new5.txt > out"
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cat > expect << EOF
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Dominus regit me,
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et nihil mihi deerit.
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In loco pascuae ibi me collocavit,
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super aquam refectionis educavit me;
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animam meam convertit,
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deduxit me super semitas jusitiae,
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propter nomen suum.
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<<<<<<< orig.txt
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=======
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Nam et si ambulavero in medio umbrae mortis,
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non timebo mala, quoniam TU mecum es:
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virga tua et baculus tuus ipsa me consolata sunt.
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>>>>>>> new5.txt
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EOF
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test_expect_success "expected conflict markers" "diff -u expect out"
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test_done
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