git/t/t3701-add-interactive.sh
Jeff King 6be4595edb color: make "always" the same as "auto" in config
It can be handy to use `--color=always` (or it's synonym
`--color`) on the command-line to convince a command to
produce color even if it's stdout isn't going to the
terminal or a pager.

What's less clear is whether it makes sense to set config
variables like color.ui to `always`. For a one-shot like:

  git -c color.ui=always ...

it's potentially useful (especially if the command doesn't
directly support the `--color` option). But setting `always`
in your on-disk config is much muddier, as you may be
surprised when piped commands generate colors (and send them
to whatever is consuming the pipe downstream).

Some people have done this anyway, because:

  1. The documentation for color.ui makes it sound like
     using `always` is a good idea, when you almost
     certainly want `auto`.

  2. Traditionally not every command (and especially not
     plumbing) respected color.ui in the first place. So
     the confusion came up less frequently than it might
     have.

The situation changed in 136c8c8b8f (color: check color.ui
in git_default_config(), 2017-07-13), which negated point
(2): now scripts using only plumbing commands (like
add-interactive) are broken by this setting.

That commit was fixing real issues (e.g., by making
`color.ui=never` work, since `auto` is the default), so we
don't want to just revert it.  We could turn `always` into a
noop in plumbing commands, but that creates a hard-to-explain
inconsistency between the plumbing and other commands.

Instead, let's just turn `always` into `auto` for all config.
This does break the "one-shot" config shown above, but again,
we're probably better to have simple and consistent rules than
to try to special-case command-line config.

There is one place where `always` should retain its meaning:
on the command line, `--color=always` should continue to be
the same as `--color`, overriding any isatty checks. Since the
command-line parser also depends on git_config_colorbool(), we
can use the existence of the "var" string to deterine whether
we are serving the command-line or the config.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-04 11:35:30 +09:00

497 lines
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#!/bin/sh
test_description='add -i basic tests'
. ./test-lib.sh
. "$TEST_DIRECTORY"/lib-terminal.sh
if ! test_have_prereq PERL
then
skip_all='skipping add -i tests, perl not available'
test_done
fi
test_expect_success 'setup (initial)' '
echo content >file &&
git add file &&
echo more >>file &&
echo lines >>file
'
test_expect_success 'status works (initial)' '
git add -i </dev/null >output &&
grep "+1/-0 *+2/-0 file" output
'
test_expect_success 'setup expected' '
cat >expected <<EOF
new file mode 100644
index 0000000..d95f3ad
--- /dev/null
+++ b/file
@@ -0,0 +1 @@
+content
EOF
'
test_expect_success 'diff works (initial)' '
(echo d; echo 1) | git add -i >output &&
sed -ne "/new file/,/content/p" <output >diff &&
test_cmp expected diff
'
test_expect_success 'revert works (initial)' '
git add file &&
(echo r; echo 1) | git add -i &&
git ls-files >output &&
! grep . output
'
test_expect_success 'setup (commit)' '
echo baseline >file &&
git add file &&
git commit -m commit &&
echo content >>file &&
git add file &&
echo more >>file &&
echo lines >>file
'
test_expect_success 'status works (commit)' '
git add -i </dev/null >output &&
grep "+1/-0 *+2/-0 file" output
'
test_expect_success 'setup expected' '
cat >expected <<EOF
index 180b47c..b6f2c08 100644
--- a/file
+++ b/file
@@ -1 +1,2 @@
baseline
+content
EOF
'
test_expect_success 'diff works (commit)' '
(echo d; echo 1) | git add -i >output &&
sed -ne "/^index/,/content/p" <output >diff &&
test_cmp expected diff
'
test_expect_success 'revert works (commit)' '
git add file &&
(echo r; echo 1) | git add -i &&
git add -i </dev/null >output &&
grep "unchanged *+3/-0 file" output
'
test_expect_success 'setup expected' '
cat >expected <<EOF
EOF
'
test_expect_success 'setup fake editor' '
>fake_editor.sh &&
chmod a+x fake_editor.sh &&
test_set_editor "$(pwd)/fake_editor.sh"
'
test_expect_success 'dummy edit works' '
(echo e; echo a) | git add -p &&
git diff > diff &&
test_cmp expected diff
'
test_expect_success 'setup patch' '
cat >patch <<EOF
@@ -1,1 +1,4 @@
this
+patch
-does not
apply
EOF
'
test_expect_success 'setup fake editor' '
echo "#!$SHELL_PATH" >fake_editor.sh &&
cat >>fake_editor.sh <<\EOF &&
mv -f "$1" oldpatch &&
mv -f patch "$1"
EOF
chmod a+x fake_editor.sh &&
test_set_editor "$(pwd)/fake_editor.sh"
'
test_expect_success 'bad edit rejected' '
git reset &&
(echo e; echo n; echo d) | git add -p >output &&
grep "hunk does not apply" output
'
test_expect_success 'setup patch' '
cat >patch <<EOF
this patch
is garbage
EOF
'
test_expect_success 'garbage edit rejected' '
git reset &&
(echo e; echo n; echo d) | git add -p >output &&
grep "hunk does not apply" output
'
test_expect_success 'setup patch' '
cat >patch <<EOF
@@ -1,0 +1,0 @@
baseline
+content
+newcontent
+lines
EOF
'
test_expect_success 'setup expected' '
cat >expected <<EOF
diff --git a/file b/file
index b5dd6c9..f910ae9 100644
--- a/file
+++ b/file
@@ -1,4 +1,4 @@
baseline
content
-newcontent
+more
lines
EOF
'
test_expect_success 'real edit works' '
(echo e; echo n; echo d) | git add -p &&
git diff >output &&
test_cmp expected output
'
test_expect_success 'skip files similarly as commit -a' '
git reset &&
echo file >.gitignore &&
echo changed >file &&
echo y | git add -p file &&
git diff >output &&
git reset &&
git commit -am commit &&
git diff >expected &&
test_cmp expected output &&
git reset --hard HEAD^
'
rm -f .gitignore
test_expect_success FILEMODE 'patch does not affect mode' '
git reset --hard &&
echo content >>file &&
chmod +x file &&
printf "n\\ny\\n" | git add -p &&
git show :file | grep content &&
git diff file | grep "new mode"
'
test_expect_success FILEMODE 'stage mode but not hunk' '
git reset --hard &&
echo content >>file &&
chmod +x file &&
printf "y\\nn\\n" | git add -p &&
git diff --cached file | grep "new mode" &&
git diff file | grep "+content"
'
test_expect_success FILEMODE 'stage mode and hunk' '
git reset --hard &&
echo content >>file &&
chmod +x file &&
printf "y\\ny\\n" | git add -p &&
git diff --cached file | grep "new mode" &&
git diff --cached file | grep "+content" &&
test -z "$(git diff file)"
'
# end of tests disabled when filemode is not usable
test_expect_success 'setup again' '
git reset --hard &&
test_chmod +x file &&
echo content >>file
'
# Write the patch file with a new line at the top and bottom
test_expect_success 'setup patch' '
cat >patch <<EOF
index 180b47c..b6f2c08 100644
--- a/file
+++ b/file
@@ -1,2 +1,4 @@
+firstline
baseline
content
+lastline
EOF
'
# Expected output, similar to the patch but w/ diff at the top
test_expect_success 'setup expected' '
cat >expected <<EOF
diff --git a/file b/file
index b6f2c08..61b9053 100755
--- a/file
+++ b/file
@@ -1,2 +1,4 @@
+firstline
baseline
content
+lastline
EOF
'
# Test splitting the first patch, then adding both
test_expect_success 'add first line works' '
git commit -am "clear local changes" &&
git apply patch &&
(echo s; echo y; echo y) | git add -p file &&
git diff --cached > diff &&
test_cmp expected diff
'
test_expect_success 'setup expected' '
cat >expected <<EOF
diff --git a/non-empty b/non-empty
deleted file mode 100644
index d95f3ad..0000000
--- a/non-empty
+++ /dev/null
@@ -1 +0,0 @@
-content
EOF
'
test_expect_success 'deleting a non-empty file' '
git reset --hard &&
echo content >non-empty &&
git add non-empty &&
git commit -m non-empty &&
rm non-empty &&
echo y | git add -p non-empty &&
git diff --cached >diff &&
test_cmp expected diff
'
test_expect_success 'setup expected' '
cat >expected <<EOF
diff --git a/empty b/empty
deleted file mode 100644
index e69de29..0000000
EOF
'
test_expect_success 'deleting an empty file' '
git reset --hard &&
> empty &&
git add empty &&
git commit -m empty &&
rm empty &&
echo y | git add -p empty &&
git diff --cached >diff &&
test_cmp expected diff
'
test_expect_success 'split hunk setup' '
git reset --hard &&
for i in 10 20 30 40 50 60
do
echo $i
done >test &&
git add test &&
test_tick &&
git commit -m test &&
for i in 10 15 20 21 22 23 24 30 40 50 60
do
echo $i
done >test
'
test_expect_success 'split hunk "add -p (edit)"' '
# Split, say Edit and do nothing. Then:
#
# 1. Broken version results in a patch that does not apply and
# only takes [y/n] (edit again) so the first q is discarded
# and then n attempts to discard the edit. Repeat q enough
# times to get out.
#
# 2. Correct version applies the (not)edited version, and asks
# about the next hunk, against which we say q and program
# exits.
printf "%s\n" s e q n q q |
EDITOR=: git add -p &&
git diff >actual &&
! grep "^+15" actual
'
test_expect_failure 'split hunk "add -p (no, yes, edit)"' '
cat >test <<-\EOF &&
5
10
20
21
30
31
40
50
60
EOF
git reset &&
# test sequence is s(plit), n(o), y(es), e(dit)
# q n q q is there to make sure we exit at the end.
printf "%s\n" s n y e q n q q |
EDITOR=: git add -p 2>error &&
test_must_be_empty error &&
git diff >actual &&
! grep "^+31" actual
'
test_expect_success 'patch mode ignores unmerged entries' '
git reset --hard &&
test_commit conflict &&
test_commit non-conflict &&
git checkout -b side &&
test_commit side conflict.t &&
git checkout master &&
test_commit master conflict.t &&
test_must_fail git merge side &&
echo changed >non-conflict.t &&
echo y | git add -p >output &&
! grep a/conflict.t output &&
cat >expected <<-\EOF &&
* Unmerged path conflict.t
diff --git a/non-conflict.t b/non-conflict.t
index f766221..5ea2ed4 100644
--- a/non-conflict.t
+++ b/non-conflict.t
@@ -1 +1 @@
-non-conflict
+changed
EOF
git diff --cached >diff &&
test_cmp expected diff
'
test_expect_success TTY 'diffs can be colorized' '
git reset --hard &&
echo content >test &&
printf y | test_terminal git add -p >output 2>&1 &&
# We do not want to depend on the exact coloring scheme
# git uses for diffs, so just check that we saw some kind of color.
grep "$(printf "\\033")" output
'
test_expect_success 'patch-mode via -i prompts for files' '
git reset --hard &&
echo one >file &&
echo two >test &&
git add -i <<-\EOF &&
patch
test
y
quit
EOF
echo test >expect &&
git diff --cached --name-only >actual &&
test_cmp expect actual
'
test_expect_success 'add -p handles globs' '
git reset --hard &&
mkdir -p subdir &&
echo base >one.c &&
echo base >subdir/two.c &&
git add "*.c" &&
git commit -m base &&
echo change >one.c &&
echo change >subdir/two.c &&
git add -p "*.c" <<-\EOF &&
y
y
EOF
cat >expect <<-\EOF &&
one.c
subdir/two.c
EOF
git diff --cached --name-only >actual &&
test_cmp expect actual
'
test_expect_success 'add -p handles relative paths' '
git reset --hard &&
echo base >relpath.c &&
git add "*.c" &&
git commit -m relpath &&
echo change >relpath.c &&
mkdir -p subdir &&
git -C subdir add -p .. 2>error <<-\EOF &&
y
EOF
test_must_be_empty error &&
cat >expect <<-\EOF &&
relpath.c
EOF
git diff --cached --name-only >actual &&
test_cmp expect actual
'
test_expect_success 'add -p does not expand argument lists' '
git reset --hard &&
echo content >not-changed &&
git add not-changed &&
git commit -m "add not-changed file" &&
echo change >file &&
GIT_TRACE=$(pwd)/trace.out git add -p . <<-\EOF &&
y
EOF
# we know that "file" must be mentioned since we actually
# update it, but we want to be sure that our "." pathspec
# was not expanded into the argument list of any command.
# So look only for "not-changed".
! grep not-changed trace.out
'
test_expect_success 'hunk-editing handles custom comment char' '
git reset --hard &&
echo change >>file &&
test_config core.commentChar "\$" &&
echo e | GIT_EDITOR=true git add -p &&
git diff --exit-code
'
test_expect_success 'add -p works even with color.ui=always' '
git reset --hard &&
echo change >>file &&
test_config color.ui always &&
echo y | git add -p &&
echo file >expect &&
git diff --cached --name-only >actual &&
test_cmp expect actual
'
test_done