git-commit-vandalism/t/t1007-hash-object.sh
Jeff King 0e94ee9415 hash-object: always try to set up the git repository
When "hash-object" is run without "-w", we don't need to be
in a git repository at all; we can just hash the object and
write its sha1 to stdout. However, if we _are_ in a git
repository, we would want to know that so we can follow the
normal rules for respecting config, .gitattributes, etc.

This happens to work at the top-level of a git repository
because we blindly read ".git/config", but as the included
test shows, it does not work when you are in a subdirectory.

The solution is to just do a "gentle" setup in this case. We
already take care to use prefix_filename() on any filename
arguments we get (to handle the "-w" case), so we don't need
to do anything extra to handle the side effects of repo
setup.

An alternative would be to specify RUN_SETUP_GENTLY for this
command in git.c, and then die if "-w" is set but we are not
in a repository. However, the error messages generated at
the time of setup_git_directory() are more detailed, so it's
better to find out which mode we are in, and then call the
appropriate function.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-13 15:45:45 -07:00

235 lines
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Executable File

#!/bin/sh
test_description="git hash-object"
. ./test-lib.sh
echo_without_newline() {
printf '%s' "$*"
}
test_blob_does_not_exist() {
test_expect_success 'blob does not exist in database' "
test_must_fail git cat-file blob $1
"
}
test_blob_exists() {
test_expect_success 'blob exists in database' "
git cat-file blob $1
"
}
hello_content="Hello World"
hello_sha1=5e1c309dae7f45e0f39b1bf3ac3cd9db12e7d689
example_content="This is an example"
example_sha1=ddd3f836d3e3fbb7ae289aa9ae83536f76956399
setup_repo() {
echo_without_newline "$hello_content" > hello
echo_without_newline "$example_content" > example
}
test_repo=test
push_repo() {
test_create_repo $test_repo
cd $test_repo
setup_repo
}
pop_repo() {
cd ..
rm -rf $test_repo
}
setup_repo
# Argument checking
test_expect_success "multiple '--stdin's are rejected" '
echo example | test_must_fail git hash-object --stdin --stdin
'
test_expect_success "Can't use --stdin and --stdin-paths together" '
echo example | test_must_fail git hash-object --stdin --stdin-paths &&
echo example | test_must_fail git hash-object --stdin-paths --stdin
'
test_expect_success "Can't pass filenames as arguments with --stdin-paths" '
echo example | test_must_fail git hash-object --stdin-paths hello
'
test_expect_success "Can't use --path with --stdin-paths" '
echo example | test_must_fail git hash-object --stdin-paths --path=foo
'
test_expect_success "Can't use --path with --no-filters" '
test_must_fail git hash-object --no-filters --path=foo
'
# Behavior
push_repo
test_expect_success 'hash a file' '
test $hello_sha1 = $(git hash-object hello)
'
test_blob_does_not_exist $hello_sha1
test_expect_success 'hash from stdin' '
test $example_sha1 = $(git hash-object --stdin < example)
'
test_blob_does_not_exist $example_sha1
test_expect_success 'hash a file and write to database' '
test $hello_sha1 = $(git hash-object -w hello)
'
test_blob_exists $hello_sha1
test_expect_success 'git hash-object --stdin file1 <file0 first operates on file0, then file1' '
echo foo > file1 &&
obname0=$(echo bar | git hash-object --stdin) &&
obname1=$(git hash-object file1) &&
obname0new=$(echo bar | git hash-object --stdin file1 | sed -n -e 1p) &&
obname1new=$(echo bar | git hash-object --stdin file1 | sed -n -e 2p) &&
test "$obname0" = "$obname0new" &&
test "$obname1" = "$obname1new"
'
test_expect_success 'check that appropriate filter is invoke when --path is used' '
echo fooQ | tr Q "\\015" >file0 &&
cp file0 file1 &&
echo "file0 -crlf" >.gitattributes &&
echo "file1 crlf" >>.gitattributes &&
git config core.autocrlf true &&
file0_sha=$(git hash-object file0) &&
file1_sha=$(git hash-object file1) &&
test "$file0_sha" != "$file1_sha" &&
path1_sha=$(git hash-object --path=file1 file0) &&
path0_sha=$(git hash-object --path=file0 file1) &&
test "$file0_sha" = "$path0_sha" &&
test "$file1_sha" = "$path1_sha" &&
path1_sha=$(cat file0 | git hash-object --path=file1 --stdin) &&
path0_sha=$(cat file1 | git hash-object --path=file0 --stdin) &&
test "$file0_sha" = "$path0_sha" &&
test "$file1_sha" = "$path1_sha" &&
git config --unset core.autocrlf
'
test_expect_success 'gitattributes also work in a subdirectory' '
mkdir subdir &&
(
cd subdir &&
subdir_sha0=$(git hash-object ../file0) &&
subdir_sha1=$(git hash-object ../file1) &&
test "$file0_sha" = "$subdir_sha0" &&
test "$file1_sha" = "$subdir_sha1"
)
'
test_expect_success 'check that --no-filters option works' '
echo fooQ | tr Q "\\015" >file0 &&
cp file0 file1 &&
echo "file0 -crlf" >.gitattributes &&
echo "file1 crlf" >>.gitattributes &&
git config core.autocrlf true &&
file0_sha=$(git hash-object file0) &&
file1_sha=$(git hash-object file1) &&
test "$file0_sha" != "$file1_sha" &&
nofilters_file1=$(git hash-object --no-filters file1) &&
test "$file0_sha" = "$nofilters_file1" &&
nofilters_file1=$(cat file1 | git hash-object --stdin) &&
test "$file0_sha" = "$nofilters_file1" &&
git config --unset core.autocrlf
'
test_expect_success 'check that --no-filters option works with --stdin-paths' '
echo fooQ | tr Q "\\015" >file0 &&
cp file0 file1 &&
echo "file0 -crlf" >.gitattributes &&
echo "file1 crlf" >>.gitattributes &&
git config core.autocrlf true &&
file0_sha=$(git hash-object file0) &&
file1_sha=$(git hash-object file1) &&
test "$file0_sha" != "$file1_sha" &&
nofilters_file1=$(echo "file1" | git hash-object --stdin-paths --no-filters) &&
test "$file0_sha" = "$nofilters_file1" &&
git config --unset core.autocrlf
'
pop_repo
for args in "-w --stdin" "--stdin -w"; do
push_repo
test_expect_success "hash from stdin and write to database ($args)" '
test $example_sha1 = $(git hash-object $args < example)
'
test_blob_exists $example_sha1
pop_repo
done
filenames="hello
example"
sha1s="$hello_sha1
$example_sha1"
test_expect_success "hash two files with names on stdin" '
test "$sha1s" = "$(echo_without_newline "$filenames" | git hash-object --stdin-paths)"
'
for args in "-w --stdin-paths" "--stdin-paths -w"; do
push_repo
test_expect_success "hash two files with names on stdin and write to database ($args)" '
test "$sha1s" = "$(echo_without_newline "$filenames" | git hash-object $args)"
'
test_blob_exists $hello_sha1
test_blob_exists $example_sha1
pop_repo
done
test_expect_success 'corrupt tree' '
echo abc >malformed-tree &&
test_must_fail git hash-object -t tree malformed-tree
'
test_expect_success 'corrupt commit' '
test_must_fail git hash-object -t commit --stdin </dev/null
'
test_expect_success 'corrupt tag' '
test_must_fail git hash-object -t tag --stdin </dev/null
'
test_expect_success 'hash-object complains about bogus type name' '
test_must_fail git hash-object -t bogus --stdin </dev/null
'
test_expect_success 'hash-object complains about truncated type name' '
test_must_fail git hash-object -t bl --stdin </dev/null
'
test_expect_success '--literally' '
t=1234567890 &&
echo example | git hash-object -t $t --literally --stdin
'
test_expect_success '--literally with extra-long type' '
t=12345678901234567890123456789012345678901234567890 &&
t="$t$t$t$t$t$t$t$t$t$t$t$t$t$t$t$t$t$t$t$t$t$t$t$t$t$t$t$t$t$t" &&
echo example | git hash-object -t $t --literally --stdin
'
test_done