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a21bae33d9
The -O flag really shouldn't silently fail to do anything when given a path that it can't read from. However, it should be able to read from un-mmappable files, such as: * pipes/fifos * /dev/null: It's a character device (at least on Linux) * ANY empty file: Quoting Linux mmap(2), "SUSv3 specifies that mmap() should fail if length is 0. However, in kernels before 2.6.12, mmap() succeeded in this case: no mapping was created and the call returned addr. Since kernel 2.6.12, mmap() fails with the error EINVAL for this case." We especially want "-O/dev/null" to work, since we will be documenting it as the way to cancel "diff.orderfile" when we add that. (Note: "-O/dev/null" did have the right effect, since the existing error handling essentially worked out to "silently ignore the orderfile". But this was probably more coincidence than anything else.) So, lets toss all of that logic to get the file mmapped and just use strbuf_read_file() instead, which gives us decent error handling practically for free. Signed-off-by: Samuel Bronson <naesten@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
95 lines
1.5 KiB
Bash
Executable File
95 lines
1.5 KiB
Bash
Executable File
#!/bin/sh
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test_description='diff order'
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. ./test-lib.sh
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create_files () {
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echo "$1" >a.h &&
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echo "$1" >b.c &&
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echo "$1" >c/Makefile &&
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echo "$1" >d.txt &&
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git add a.h b.c c/Makefile d.txt &&
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git commit -m"$1"
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}
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test_expect_success 'setup' '
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mkdir c &&
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create_files 1 &&
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create_files 2 &&
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cat >order_file_1 <<-\EOF &&
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*Makefile
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*.txt
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*.h
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EOF
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cat >order_file_2 <<-\EOF &&
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*Makefile
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*.h
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*.c
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EOF
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cat >expect_none <<-\EOF &&
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a.h
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b.c
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c/Makefile
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d.txt
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EOF
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cat >expect_1 <<-\EOF &&
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c/Makefile
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d.txt
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a.h
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b.c
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EOF
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cat >expect_2 <<-\EOF
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c/Makefile
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a.h
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b.c
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d.txt
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EOF
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'
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test_expect_success "no order (=tree object order)" '
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git diff --name-only HEAD^..HEAD >actual &&
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test_cmp expect_none actual
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'
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test_expect_success 'missing orderfile' '
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rm -f bogus_file &&
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test_must_fail git diff -Obogus_file --name-only HEAD^..HEAD
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'
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test_expect_success POSIXPERM,SANITY 'unreadable orderfile' '
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>unreadable_file &&
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chmod -r unreadable_file &&
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test_must_fail git diff -Ounreadable_file --name-only HEAD^..HEAD
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'
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test_expect_success 'orderfile is a directory' '
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test_must_fail git diff -O/ --name-only HEAD^..HEAD
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'
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for i in 1 2
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do
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test_expect_success "orderfile using option ($i)" '
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git diff -Oorder_file_$i --name-only HEAD^..HEAD >actual &&
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test_cmp expect_$i actual
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'
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test_expect_success PIPE "orderfile is fifo ($i)" '
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rm -f order_fifo &&
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mkfifo order_fifo &&
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{
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cat order_file_$i >order_fifo &
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} &&
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git diff -O order_fifo --name-only HEAD^..HEAD >actual &&
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wait &&
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test_cmp expect_$i actual
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'
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done
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test_done
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