git/t/t8006-blame-textconv.sh
Kirill Smelkov ab3b7b9a6e blame,cat-file: Demonstrate --textconv is wrongly running converter on symlinks
git blame --textconv is wrongly calling the textconv filter on
symlinks: symlinks are stored as blobs whose content is the target of
the link, and blame calls the textconv filter on a temporary file
filled-in with the content of this blob.

For example:

    $ git blame -C -C regular-file.pdf
    Error: May not be a PDF file (continuing anyway)
    Error: PDF file is damaged - attempting to reconstruct xref table...
    Error: Couldn't find trailer dictionary
    Error: Couldn't read xref table
    Warning: program returned non-zero exit code #1
    fatal: unable to read files to diff

That errors come from pdftotext run on symlink.pdf being extracted to
/tmp/ with one-line plain-text content pointing to link destination.

So several failures are demonstrated here:

  - git cat-file --textconv :symlink.bin    # also HEAD:symlink.bin
  - git blame --textconv symlink.bin
  - git blame -C -C --textconv regular-file # but also looks on symlink.bin

At present they all fail with something like.

    E: /tmp/j3ELEs_symlink.bin is not "binary" file

NOTE: git diff doesn't try to textconv the pathnames, it runs the
textual diff without textconv, which is the expected behavior.

Signed-off-by: Kirill Smelkov <kirr@landau.phys.spbu.ru>
Reviewed-by: Matthieu Moy <Matthieu.Moy@grenoble-inp.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-29 16:53:25 -07:00

131 lines
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Executable file

#!/bin/sh
test_description='git blame textconv support'
. ./test-lib.sh
find_blame() {
sed -e 's/^[^(]*//'
}
cat >helper <<'EOF'
#!/bin/sh
grep -q '^bin: ' "$1" || { echo "E: $1 is not \"binary\" file" 1>&2; exit 1; }
sed 's/^bin: /converted: /' "$1"
EOF
chmod +x helper
test_expect_success 'setup ' '
echo "bin: test 1" >one.bin &&
echo "bin: test number 2" >two.bin &&
if test_have_prereq SYMLINKS; then
ln -s one.bin symlink.bin
fi &&
git add . &&
GIT_AUTHOR_NAME=Number1 git commit -a -m First --date="2010-01-01 18:00:00" &&
echo "bin: test 1 version 2" >one.bin &&
echo "bin: test number 2 version 2" >>two.bin &&
if test_have_prereq SYMLINKS; then
ln -sf two.bin symlink.bin
fi &&
GIT_AUTHOR_NAME=Number2 git commit -a -m Second --date="2010-01-01 20:00:00"
'
cat >expected <<EOF
(Number2 2010-01-01 20:00:00 +0000 1) bin: test 1 version 2
EOF
test_expect_success 'no filter specified' '
git blame one.bin >blame &&
find_blame Number2 <blame >result &&
test_cmp expected result
'
test_expect_success 'setup textconv filters' '
echo "*.bin diff=test" >.gitattributes &&
git config diff.test.textconv ./helper &&
git config diff.test.cachetextconv false
'
test_expect_success 'blame with --no-textconv' '
git blame --no-textconv one.bin >blame &&
find_blame <blame> result &&
test_cmp expected result
'
cat >expected <<EOF
(Number2 2010-01-01 20:00:00 +0000 1) converted: test 1 version 2
EOF
test_expect_success 'basic blame on last commit' '
git blame one.bin >blame &&
find_blame <blame >result &&
test_cmp expected result
'
cat >expected <<EOF
(Number1 2010-01-01 18:00:00 +0000 1) converted: test number 2
(Number2 2010-01-01 20:00:00 +0000 2) converted: test number 2 version 2
EOF
test_expect_success 'blame --textconv going through revisions' '
git blame --textconv two.bin >blame &&
find_blame <blame >result &&
test_cmp expected result
'
test_expect_success 'make a new commit' '
echo "bin: test number 2 version 3" >>two.bin &&
GIT_AUTHOR_NAME=Number3 git commit -a -m Third --date="2010-01-01 22:00:00"
'
test_expect_success 'blame from previous revision' '
git blame HEAD^ two.bin >blame &&
find_blame <blame >result &&
test_cmp expected result
'
cat >expected <<EOF
(Number2 2010-01-01 20:00:00 +0000 1) two.bin
EOF
test_expect_success SYMLINKS 'blame with --no-textconv (on symlink)' '
git blame --no-textconv symlink.bin >blame &&
find_blame <blame >result &&
test_cmp expected result
'
# fails with '...symlink.bin is not "binary" file'
test_expect_failure SYMLINKS 'blame --textconv (on symlink)' '
git blame --textconv symlink.bin >blame &&
find_blame <blame >result &&
test_cmp expected result
'
# cp two.bin three.bin and make small tweak
# (this will direct blame -C -C three.bin to consider two.bin and symlink.bin)
test_expect_success SYMLINKS 'make another new commit' '
cat >three.bin <<\EOF &&
bin: test number 2
bin: test number 2 version 2
bin: test number 2 version 3
bin: test number 3
EOF
git add three.bin &&
GIT_AUTHOR_NAME=Number4 git commit -a -m Fourth --date="2010-01-01 23:00:00"
'
# fails with '...symlink.bin is not "binary" file'
test_expect_failure SYMLINKS 'blame on last commit (-C -C, symlink)' '
git blame -C -C three.bin >blame &&
find_blame <blame >result &&
cat >expected <<\EOF &&
(Number1 2010-01-01 18:00:00 +0000 1) converted: test number 2
(Number2 2010-01-01 20:00:00 +0000 2) converted: test number 2 version 2
(Number3 2010-01-01 22:00:00 +0000 3) converted: test number 2 version 3
(Number4 2010-01-01 23:00:00 +0000 4) converted: test number 3
EOF
test_cmp expected result
'
test_done