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bd8c1a9b49
Upon seeing a type-change filepair, "diff --no-ext-diff" does not show the usual "deletion followed by addition" split patch and does not run the external diff driver either. This is because the logic to disable external diff was placed at a wrong level in the callchain. run_diff_cmd() decides to show the split patch only when external diff driver is not configured or specified via GIT_EXTERNAL_DIFF environment, but this is done before checking if --no-ext-diff was given. To make things worse, run_diff_cmd() checks --no-ext-diff and disables the output for such a filepair completely, as the callchain below it (e.g. builtin_diff) does not want to handle typechange filepairs. Signed-off-by: Junio C Hamano <gitster@pobox.com>
190 lines
4.1 KiB
Bash
Executable File
190 lines
4.1 KiB
Bash
Executable File
#!/bin/sh
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test_description='external diff interface test'
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. ./test-lib.sh
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test_expect_success setup '
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test_tick &&
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echo initial >file &&
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git add file &&
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git commit -m initial &&
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test_tick &&
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echo second >file &&
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git add file &&
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git commit -m second &&
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test_tick &&
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echo third >file
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'
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test_expect_success 'GIT_EXTERNAL_DIFF environment' '
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GIT_EXTERNAL_DIFF=echo git diff | {
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read path oldfile oldhex oldmode newfile newhex newmode &&
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test "z$path" = zfile &&
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test "z$oldmode" = z100644 &&
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test "z$newhex" = "z$_z40" &&
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test "z$newmode" = z100644 &&
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oh=$(git rev-parse --verify HEAD:file) &&
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test "z$oh" = "z$oldhex"
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}
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'
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test_expect_success 'GIT_EXTERNAL_DIFF environment should apply only to diff' '
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GIT_EXTERNAL_DIFF=echo git log -p -1 HEAD |
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grep "^diff --git a/file b/file"
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'
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test_expect_success 'GIT_EXTERNAL_DIFF environment and --no-ext-diff' '
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GIT_EXTERNAL_DIFF=echo git diff --no-ext-diff |
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grep "^diff --git a/file b/file"
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'
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test_expect_success SYMLINKS 'typechange diff' '
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rm -f file &&
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ln -s elif file &&
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GIT_EXTERNAL_DIFF=echo git diff | {
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read path oldfile oldhex oldmode newfile newhex newmode &&
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test "z$path" = zfile &&
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test "z$oldmode" = z100644 &&
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test "z$newhex" = "z$_z40" &&
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test "z$newmode" = z120000 &&
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oh=$(git rev-parse --verify HEAD:file) &&
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test "z$oh" = "z$oldhex"
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} &&
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GIT_EXTERNAL_DIFF=echo git diff --no-ext-diff >actual &&
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git diff >expect &&
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test_cmp expect actual
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'
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test_expect_success 'diff attribute' '
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git reset --hard &&
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echo third >file &&
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git config diff.parrot.command echo &&
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echo >.gitattributes "file diff=parrot" &&
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git diff | {
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read path oldfile oldhex oldmode newfile newhex newmode &&
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test "z$path" = zfile &&
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test "z$oldmode" = z100644 &&
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test "z$newhex" = "z$_z40" &&
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test "z$newmode" = z100644 &&
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oh=$(git rev-parse --verify HEAD:file) &&
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test "z$oh" = "z$oldhex"
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}
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'
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test_expect_success 'diff attribute should apply only to diff' '
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git log -p -1 HEAD |
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grep "^diff --git a/file b/file"
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'
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test_expect_success 'diff attribute and --no-ext-diff' '
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git diff --no-ext-diff |
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grep "^diff --git a/file b/file"
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'
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test_expect_success 'diff attribute' '
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git config --unset diff.parrot.command &&
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git config diff.color.command echo &&
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echo >.gitattributes "file diff=color" &&
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git diff | {
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read path oldfile oldhex oldmode newfile newhex newmode &&
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test "z$path" = zfile &&
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test "z$oldmode" = z100644 &&
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test "z$newhex" = "z$_z40" &&
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test "z$newmode" = z100644 &&
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oh=$(git rev-parse --verify HEAD:file) &&
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test "z$oh" = "z$oldhex"
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}
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'
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test_expect_success 'diff attribute should apply only to diff' '
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git log -p -1 HEAD |
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grep "^diff --git a/file b/file"
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'
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test_expect_success 'diff attribute and --no-ext-diff' '
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git diff --no-ext-diff |
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grep "^diff --git a/file b/file"
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'
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test_expect_success 'no diff with -diff' '
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echo >.gitattributes "file -diff" &&
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git diff | grep Binary
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'
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echo NULZbetweenZwords | perl -pe 'y/Z/\000/' > file
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test_expect_success 'force diff with "diff"' '
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echo >.gitattributes "file diff" &&
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git diff >actual &&
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test_cmp "$TEST_DIRECTORY"/t4020/diff.NUL actual
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'
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test_expect_success 'GIT_EXTERNAL_DIFF with more than one changed files' '
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echo anotherfile > file2 &&
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git add file2 &&
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git commit -m "added 2nd file" &&
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echo modified >file2 &&
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GIT_EXTERNAL_DIFF=echo git diff
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'
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test_expect_success 'GIT_EXTERNAL_DIFF generates pretty paths' '
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touch file.ext &&
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git add file.ext &&
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echo with extension > file.ext &&
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GIT_EXTERNAL_DIFF=echo git diff file.ext | grep ......_file\.ext &&
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git update-index --force-remove file.ext &&
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rm file.ext
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'
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echo "#!$SHELL_PATH" >fake-diff.sh
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cat >> fake-diff.sh <<\EOF
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cat $2 >> crlfed.txt
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EOF
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chmod a+x fake-diff.sh
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keep_only_cr () {
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tr -dc '\015'
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}
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test_expect_success 'external diff with autocrlf = true' '
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git config core.autocrlf true &&
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GIT_EXTERNAL_DIFF=./fake-diff.sh git diff &&
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test $(wc -l < crlfed.txt) = $(cat crlfed.txt | keep_only_cr | wc -c)
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'
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test_expect_success 'diff --cached' '
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git add file &&
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git update-index --assume-unchanged file &&
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echo second >file &&
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git diff --cached >actual &&
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test_cmp "$TEST_DIRECTORY"/t4020/diff.NUL actual
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'
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test_done
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