built-in rebase --autostash: leave the current branch alone if possible

diff --git a/t/t4015-diff-whitespace.sh b/t/t4015-diff-whitespace.sh
index 17df491a3abe84fca63bb899d1162832d13e1847..41facf7abf9bff5cc39419b41998836018257f79 100755 (executable)
--- a/t/t4015-diff-whitespace.sh
+++ b/t/t4015-diff-whitespace.sh
@@ -1223,7 +1223,7 @@ test_expect_success 'plain moved code, inside file' '
        test_cmp expected actual
 '
 
-test_expect_success 'detect permutations inside moved code -- dimmed_zebra' '
+test_expect_success 'detect blocks of moved code' '
        git reset --hard &&
        cat <<-\EOF >lines.txt &&
                long line 1
@@ -1271,9 +1271,52 @@ test_expect_success 'detect permutations inside moved code -- dimmed_zebra' '
        test_config color.diff.newMovedDimmed "normal cyan" &&
        test_config color.diff.oldMovedAlternativeDimmed "normal blue" &&
        test_config color.diff.newMovedAlternativeDimmed "normal yellow" &&
-       git diff HEAD --no-renames --color-moved=dimmed_zebra --color |
-               grep -v "index" |
-               test_decode_color >actual &&
+       git diff HEAD --no-renames --color-moved=blocks --color >actual.raw &&
+       grep -v "index" actual.raw | test_decode_color >actual &&
+       cat <<-\EOF >expected &&
+       <BOLD>diff --git a/lines.txt b/lines.txt<RESET>
+       <BOLD>--- a/lines.txt<RESET>
+       <BOLD>+++ b/lines.txt<RESET>
+       <CYAN>@@ -1,16 +1,16 @@<RESET>
+       <MAGENTA>-long line 1<RESET>
+       <MAGENTA>-long line 2<RESET>
+       <MAGENTA>-long line 3<RESET>
+        line 4<RESET>
+        line 5<RESET>
+        line 6<RESET>
+        line 7<RESET>
+        line 8<RESET>
+        line 9<RESET>
+       <CYAN>+<RESET><CYAN>long line 1<RESET>
+       <CYAN>+<RESET><CYAN>long line 2<RESET>
+       <CYAN>+<RESET><CYAN>long line 3<RESET>
+       <CYAN>+<RESET><CYAN>long line 14<RESET>
+       <CYAN>+<RESET><CYAN>long line 15<RESET>
+       <CYAN>+<RESET><CYAN>long line 16<RESET>
+        line 10<RESET>
+        line 11<RESET>
+        line 12<RESET>
+        line 13<RESET>
+       <MAGENTA>-long line 14<RESET>
+       <MAGENTA>-long line 15<RESET>
+       <MAGENTA>-long line 16<RESET>
+       EOF
+       test_cmp expected actual
+
+'
+
+test_expect_success 'detect permutations inside moved code -- dimmed_zebra' '
+       # reuse setup from test before!
+       test_config color.diff.oldMoved "magenta" &&
+       test_config color.diff.newMoved "cyan" &&
+       test_config color.diff.oldMovedAlternative "blue" &&
+       test_config color.diff.newMovedAlternative "yellow" &&
+       test_config color.diff.oldMovedDimmed "normal magenta" &&
+       test_config color.diff.newMovedDimmed "normal cyan" &&
+       test_config color.diff.oldMovedAlternativeDimmed "normal blue" &&
+       test_config color.diff.newMovedAlternativeDimmed "normal yellow" &&
+       git diff HEAD --no-renames --color-moved=dimmed_zebra --color >actual.raw &&
+       grep -v "index" actual.raw | test_decode_color >actual &&
        cat <<-\EOF >expected &&
        <BOLD>diff --git a/lines.txt b/lines.txt<RESET>
        <BOLD>--- a/lines.txt<RESET>
@@ -1315,9 +1358,8 @@ test_expect_success 'cmd option assumes configured colored-moved' '
        test_config color.diff.oldMovedAlternativeDimmed "normal blue" &&
        test_config color.diff.newMovedAlternativeDimmed "normal yellow" &&
        test_config diff.colorMoved zebra &&
-       git diff HEAD --no-renames --color-moved --color |
-               grep -v "index" |
-               test_decode_color >actual &&
+       git diff HEAD --no-renames --color-moved --color >actual.raw &&
+       grep -v "index" actual.raw | test_decode_color >actual &&
        cat <<-\EOF >expected &&
        <BOLD>diff --git a/lines.txt b/lines.txt<RESET>
        <BOLD>--- a/lines.txt<RESET>
@@ -1395,9 +1437,8 @@ test_expect_success 'move detection ignoring whitespace ' '
        line 4
        line 5
        EOF
-       git diff HEAD --no-renames --color-moved --color |
-               grep -v "index" |
-               test_decode_color >actual &&
+       git diff HEAD --no-renames --color-moved --color >actual.raw &&
+       grep -v "index" actual.raw | test_decode_color >actual &&
        cat <<-\EOF >expected &&
        <BOLD>diff --git a/lines.txt b/lines.txt<RESET>
        <BOLD>--- a/lines.txt<RESET>
@@ -1419,9 +1460,9 @@ test_expect_success 'move detection ignoring whitespace ' '
        EOF
        test_cmp expected actual &&
 
-       git diff HEAD --no-renames -w --color-moved --color |
-               grep -v "index" |
-               test_decode_color >actual &&
+       git diff HEAD --no-renames --color-moved --color \
+               --color-moved-ws=ignore-all-space >actual.raw &&
+       grep -v "index" actual.raw | test_decode_color >actual &&
        cat <<-\EOF >expected &&
        <BOLD>diff --git a/lines.txt b/lines.txt<RESET>
        <BOLD>--- a/lines.txt<RESET>
@@ -1459,9 +1500,8 @@ test_expect_success 'move detection ignoring whitespace changes' '
        line 5
        EOF
 
-       git diff HEAD --no-renames --color-moved --color |
-               grep -v "index" |
-               test_decode_color >actual &&
+       git diff HEAD --no-renames --color-moved --color >actual.raw &&
+       grep -v "index" actual.raw | test_decode_color >actual &&
        cat <<-\EOF >expected &&
        <BOLD>diff --git a/lines.txt b/lines.txt<RESET>
        <BOLD>--- a/lines.txt<RESET>
@@ -1483,9 +1523,9 @@ test_expect_success 'move detection ignoring whitespace changes' '
        EOF
        test_cmp expected actual &&
 
-       git diff HEAD --no-renames -b --color-moved --color |
-               grep -v "index" |
-               test_decode_color >actual &&
+       git diff HEAD --no-renames --color-moved --color \
+               --color-moved-ws=ignore-space-change >actual.raw &&
+       grep -v "index" actual.raw | test_decode_color >actual &&
        cat <<-\EOF >expected &&
        <BOLD>diff --git a/lines.txt b/lines.txt<RESET>
        <BOLD>--- a/lines.txt<RESET>
@@ -1526,9 +1566,8 @@ test_expect_success 'move detection ignoring whitespace at eol' '
        # avoid cluttering the output with complaints about our eol whitespace
        test_config core.whitespace -blank-at-eol &&
 
-       git diff HEAD --no-renames --color-moved --color |
-               grep -v "index" |
-               test_decode_color >actual &&
+       git diff HEAD --no-renames --color-moved --color >actual.raw &&
+       grep -v "index" actual.raw | test_decode_color >actual &&
        cat <<-\EOF >expected &&
        <BOLD>diff --git a/lines.txt b/lines.txt<RESET>
        <BOLD>--- a/lines.txt<RESET>
@@ -1550,9 +1589,9 @@ test_expect_success 'move detection ignoring whitespace at eol' '
        EOF
        test_cmp expected actual &&
 
-       git diff HEAD --no-renames --ignore-space-at-eol --color-moved --color |
-               grep -v "index" |
-               test_decode_color >actual &&
+       git diff HEAD --no-renames --color-moved --color \
+               --color-moved-ws=ignore-space-at-eol >actual.raw &&
+       grep -v "index" actual.raw | test_decode_color >actual &&
        cat <<-\EOF >expected &&
        <BOLD>diff --git a/lines.txt b/lines.txt<RESET>
        <BOLD>--- a/lines.txt<RESET>
@@ -1597,9 +1636,8 @@ test_expect_success '--color-moved block at end of diff output respects MIN_ALNU
        irrelevant_line
        EOF
 
-       git diff HEAD --color-moved=zebra --color --no-renames |
-               grep -v "index" |
-               test_decode_color >actual &&
+       git diff HEAD --color-moved=zebra --color --no-renames >actual.raw &&
+       grep -v "index" actual.raw | test_decode_color >actual &&
        cat >expected <<-\EOF &&
        <BOLD>diff --git a/bar b/bar<RESET>
        <BOLD>--- a/bar<RESET>
@@ -1636,9 +1674,8 @@ test_expect_success '--color-moved respects MIN_ALNUM_COUNT' '
        nineteen chars 456789
        EOF
 
-       git diff HEAD --color-moved=zebra --color --no-renames |
-               grep -v "index" |
-               test_decode_color >actual &&
+       git diff HEAD --color-moved=zebra --color --no-renames >actual.raw &&
+       grep -v "index" actual.raw | test_decode_color >actual &&
        cat >expected <<-\EOF &&
        <BOLD>diff --git a/bar b/bar<RESET>
        <BOLD>--- a/bar<RESET>
@@ -1679,7 +1716,8 @@ test_expect_success '--color-moved treats adjacent blocks as separate for MIN_AL
        7charsA
        EOF
 
-       git diff HEAD --color-moved=zebra --color --no-renames | grep -v "index" | test_decode_color >actual &&
+       git diff HEAD --color-moved=zebra --color --no-renames >actual.raw &&
+       grep -v "index" actual.raw | test_decode_color >actual &&
        cat >expected <<-\EOF &&
        <BOLD>diff --git a/bar b/bar<RESET>
        <BOLD>--- a/bar<RESET>
@@ -1722,7 +1760,146 @@ test_expect_success 'move detection with submodules' '
 
        # nor did we mess with it another way
        git diff --submodule=diff --color | test_decode_color >expect &&
-       test_cmp expect decoded_actual
+       test_cmp expect decoded_actual &&
+       rm -rf bananas &&
+       git submodule deinit bananas
+'
+
+test_expect_success 'only move detection ignores white spaces' '
+       git reset --hard &&
+       q_to_tab <<-\EOF >text.txt &&
+               a long line to exceed per-line minimum
+               another long line to exceed per-line minimum
+               original file
+       EOF
+       git add text.txt &&
+       git commit -m "add text" &&
+       q_to_tab <<-\EOF >text.txt &&
+               Qa long line to exceed per-line minimum
+               Qanother long line to exceed per-line minimum
+               new file
+       EOF
+
+       # Make sure we get a different diff using -w
+       git diff --color --color-moved -w >actual.raw &&
+       grep -v "index" actual.raw | test_decode_color >actual &&
+       q_to_tab <<-\EOF >expected &&
+       <BOLD>diff --git a/text.txt b/text.txt<RESET>
+       <BOLD>--- a/text.txt<RESET>
+       <BOLD>+++ b/text.txt<RESET>
+       <CYAN>@@ -1,3 +1,3 @@<RESET>
+        Qa long line to exceed per-line minimum<RESET>
+        Qanother long line to exceed per-line minimum<RESET>
+       <RED>-original file<RESET>
+       <GREEN>+<RESET><GREEN>new file<RESET>
+       EOF
+       test_cmp expected actual &&
+
+       # And now ignoring white space only in the move detection
+       git diff --color --color-moved \
+               --color-moved-ws=ignore-all-space,ignore-space-change,ignore-space-at-eol >actual.raw &&
+       grep -v "index" actual.raw | test_decode_color >actual &&
+       q_to_tab <<-\EOF >expected &&
+       <BOLD>diff --git a/text.txt b/text.txt<RESET>
+       <BOLD>--- a/text.txt<RESET>
+       <BOLD>+++ b/text.txt<RESET>
+       <CYAN>@@ -1,3 +1,3 @@<RESET>
+       <BOLD;MAGENTA>-a long line to exceed per-line minimum<RESET>
+       <BOLD;MAGENTA>-another long line to exceed per-line minimum<RESET>
+       <RED>-original file<RESET>
+       <BOLD;YELLOW>+<RESET>Q<BOLD;YELLOW>a long line to exceed per-line minimum<RESET>
+       <BOLD;YELLOW>+<RESET>Q<BOLD;YELLOW>another long line to exceed per-line minimum<RESET>
+       <GREEN>+<RESET><GREEN>new file<RESET>
+       EOF
+       test_cmp expected actual
+'
+
+test_expect_success 'compare whitespace delta across moved blocks' '
+
+       git reset --hard &&
+       q_to_tab <<-\EOF >text.txt &&
+       QIndented
+       QText across
+       Qsome lines
+       QBut! <- this stands out
+       QAdjusting with
+       QQdifferent starting
+       Qwhite spaces
+       QAnother outlier
+       QQQIndented
+       QQQText across
+       QQQfive lines
+       QQQthat has similar lines
+       QQQto previous blocks, but with different indent
+       QQQYetQAnotherQoutlierQ
+       EOF
+
+       git add text.txt &&
+       git commit -m "add text.txt" &&
+
+       q_to_tab <<-\EOF >text.txt &&
+       QQIndented
+       QQText across
+       QQsome lines
+       QQQBut! <- this stands out
+       Adjusting with
+       Qdifferent starting
+       white spaces
+       AnotherQoutlier
+       QQIndented
+       QQText across
+       QQfive lines
+       QQthat has similar lines
+       QQto previous blocks, but with different indent
+       QQYetQAnotherQoutlier
+       EOF
+
+       git diff --color --color-moved --color-moved-ws=allow-indentation-change >actual.raw &&
+       grep -v "index" actual.raw | test_decode_color >actual &&
+
+       q_to_tab <<-\EOF >expected &&
+               <BOLD>diff --git a/text.txt b/text.txt<RESET>
+               <BOLD>--- a/text.txt<RESET>
+               <BOLD>+++ b/text.txt<RESET>
+               <CYAN>@@ -1,14 +1,14 @@<RESET>
+               <BOLD;MAGENTA>-QIndented<RESET>
+               <BOLD;MAGENTA>-QText across<RESET>
+               <BOLD;MAGENTA>-Qsome lines<RESET>
+               <RED>-QBut! <- this stands out<RESET>
+               <BOLD;MAGENTA>-QAdjusting with<RESET>
+               <BOLD;MAGENTA>-QQdifferent starting<RESET>
+               <BOLD;MAGENTA>-Qwhite spaces<RESET>
+               <RED>-QAnother outlier<RESET>
+               <BOLD;MAGENTA>-QQQIndented<RESET>
+               <BOLD;MAGENTA>-QQQText across<RESET>
+               <BOLD;MAGENTA>-QQQfive lines<RESET>
+               <BOLD;MAGENTA>-QQQthat has similar lines<RESET>
+               <BOLD;MAGENTA>-QQQto previous blocks, but with different indent<RESET>
+               <RED>-QQQYetQAnotherQoutlierQ<RESET>
+               <BOLD;CYAN>+<RESET>QQ<BOLD;CYAN>Indented<RESET>
+               <BOLD;CYAN>+<RESET>QQ<BOLD;CYAN>Text across<RESET>
+               <BOLD;CYAN>+<RESET>QQ<BOLD;CYAN>some lines<RESET>
+               <GREEN>+<RESET>QQQ<GREEN>But! <- this stands out<RESET>
+               <BOLD;CYAN>+<RESET><BOLD;CYAN>Adjusting with<RESET>
+               <BOLD;CYAN>+<RESET>Q<BOLD;CYAN>different starting<RESET>
+               <BOLD;CYAN>+<RESET><BOLD;CYAN>white spaces<RESET>
+               <GREEN>+<RESET><GREEN>AnotherQoutlier<RESET>
+               <BOLD;CYAN>+<RESET>QQ<BOLD;CYAN>Indented<RESET>
+               <BOLD;CYAN>+<RESET>QQ<BOLD;CYAN>Text across<RESET>
+               <BOLD;CYAN>+<RESET>QQ<BOLD;CYAN>five lines<RESET>
+               <BOLD;CYAN>+<RESET>QQ<BOLD;CYAN>that has similar lines<RESET>
+               <BOLD;CYAN>+<RESET>QQ<BOLD;CYAN>to previous blocks, but with different indent<RESET>
+               <GREEN>+<RESET>QQ<GREEN>YetQAnotherQoutlier<RESET>
+       EOF
+
+       test_cmp expected actual
+'
+
+test_expect_success 'compare whitespace delta incompatible with other space options' '
+       test_must_fail git diff \
+               --color-moved-ws=allow-indentation-change,ignore-all-space \
+               2>err &&
+       test_i18ngrep allow-indentation-change err
 '
 
 test_done