#!/bin/sh

# Copyright (c) 2009 Jens Lehmann
# Copyright (c) 2011 Alexey Shumkin (+ non-UTF-8 commit encoding tests)

test_description='git rev-list --pretty=format test'

. ./test-lib.sh
. "$TEST_DIRECTORY"/lib-terminal.sh

test_tick
# Tested non-UTF-8 encoding
test_encoding="ISO8859-1"

# String "added" in German
# (translated with Google Translate),
# encoded in UTF-8, used as a commit log message below.
added_utf8_part=$(printf "\303\274")
added_utf8_part_iso88591=$(echo "$added_utf8_part" | iconv -f utf-8 -t $test_encoding)
added=$(printf "added (hinzugef${added_utf8_part}gt) foo")
added_iso88591=$(echo "$added" | iconv -f utf-8 -t $test_encoding)
# same but "changed"
changed_utf8_part=$(printf "\303\244")
changed_utf8_part_iso88591=$(echo "$changed_utf8_part" | iconv -f utf-8 -t $test_encoding)
changed=$(printf "changed (ge${changed_utf8_part}ndert) foo")
changed_iso88591=$(echo "$changed" | iconv -f utf-8 -t $test_encoding)

# Count of char to truncate
# Number is chosen so, that non-ACSII characters
# (see $added_utf8_part and $changed_utf8_part)
# fall into truncated parts of appropriate words both from left and right
truncate_count=20

test_expect_success 'setup' '
        : >foo &&
        git add foo &&
        git config i18n.commitEncoding $test_encoding &&
        echo "$added_iso88591" | git commit -F - &&
        head1=$(git rev-parse --verify HEAD) &&
        head1_short=$(git rev-parse --verify --short $head1) &&
        tree1=$(git rev-parse --verify HEAD:) &&
        tree1_short=$(git rev-parse --verify --short $tree1) &&
        echo "$changed" > foo &&
        echo "$changed_iso88591" | git commit -a -F - &&
        head2=$(git rev-parse --verify HEAD) &&
        head2_short=$(git rev-parse --verify --short $head2) &&
        tree2=$(git rev-parse --verify HEAD:) &&
        tree2_short=$(git rev-parse --verify --short $tree2) &&
        git config --unset i18n.commitEncoding
'

# usage: test_format name format_string [failure] <expected_output
test_format () {
        cat >expect.$1
        test_expect_${3:-success} "format $1" "
                git rev-list --pretty=format:'$2' master >output.$1 &&
                test_cmp expect.$1 output.$1
        "
}

# Feed to --format to provide predictable colored sequences.
BASIC_COLOR='%Credfoo%Creset'
COLOR='%C(red)foo%C(reset)'
AUTO_COLOR='%C(auto,red)foo%C(auto,reset)'
ALWAYS_COLOR='%C(always,red)foo%C(always,reset)'
has_color () {
        test_decode_color <"$1" >decoded &&
        echo "<RED>foo<RESET>" >expect &&
        test_cmp expect decoded
}

has_no_color () {
        echo foo >expect &&
        test_cmp expect "$1"
}

test_format percent %%h <<EOF
commit $head2
%h
commit $head1
%h
EOF

test_format hash %H%n%h <<EOF
commit $head2
$head2
$head2_short
commit $head1
$head1
$head1_short
EOF

test_format tree %T%n%t <<EOF
commit $head2
$tree2
$tree2_short
commit $head1
$tree1
$tree1_short
EOF

test_format parents %P%n%p <<EOF
commit $head2
$head1
$head1_short
commit $head1


EOF

# we don't test relative here
test_format author %an%n%ae%n%ad%n%aD%n%at <<EOF
commit $head2
A U Thor
author@example.com
Thu Apr 7 15:13:13 2005 -0700
Thu, 7 Apr 2005 15:13:13 -0700
1112911993
commit $head1
A U Thor
author@example.com
Thu Apr 7 15:13:13 2005 -0700
Thu, 7 Apr 2005 15:13:13 -0700
1112911993
EOF

test_format committer %cn%n%ce%n%cd%n%cD%n%ct <<EOF
commit $head2
C O Mitter
committer@example.com
Thu Apr 7 15:13:13 2005 -0700
Thu, 7 Apr 2005 15:13:13 -0700
1112911993
commit $head1
C O Mitter
committer@example.com
Thu Apr 7 15:13:13 2005 -0700
Thu, 7 Apr 2005 15:13:13 -0700
1112911993
EOF

test_format encoding %e <<EOF
commit $head2
$test_encoding
commit $head1
$test_encoding
EOF

test_format subject %s <<EOF
commit $head2
$changed
commit $head1
$added
EOF

test_format subject-truncated "%<($truncate_count,trunc)%s" <<EOF
commit $head2
changed (ge${changed_utf8_part}ndert)..
commit $head1
added (hinzugef${added_utf8_part}gt..
EOF

test_format body %b <<EOF
commit $head2
commit $head1
EOF

test_format raw-body %B <<EOF
commit $head2
$changed

commit $head1
$added

EOF

test_expect_success 'basic colors' '
        cat >expect <<-EOF &&
        commit $head2
        <RED>foo<GREEN>bar<BLUE>baz<RESET>xyzzy
        EOF
        format="%Credfoo%Cgreenbar%Cbluebaz%Cresetxyzzy" &&
        git rev-list --color --format="$format" -1 master >actual.raw &&
        test_decode_color <actual.raw >actual &&
        test_cmp expect actual
'

test_expect_success '%S is not a placeholder for rev-list yet' '
        git rev-list --format="%S" -1 master | grep "%S"
'

test_expect_success 'advanced colors' '
        cat >expect <<-EOF &&
        commit $head2
        <BOLD;RED;BYELLOW>foo<RESET>
        EOF
        format="%C(red yellow bold)foo%C(reset)" &&
        git rev-list --color --format="$format" -1 master >actual.raw &&
        test_decode_color <actual.raw >actual &&
        test_cmp expect actual
'

for spec in \
        "%Cred:$BASIC_COLOR" \
        "%C(...):$COLOR" \
        "%C(auto,...):$AUTO_COLOR"
do
        desc=${spec%%:*}
        color=${spec#*:}
        test_expect_success "$desc does not enable color by default" '
                git log --format=$color -1 >actual &&
                has_no_color actual
        '

        test_expect_success "$desc enables colors for color.diff" '
                git -c color.diff=always log --format=$color -1 >actual &&
                has_color actual
        '

        test_expect_success "$desc enables colors for color.ui" '
                git -c color.ui=always log --format=$color -1 >actual &&
                has_color actual
        '

        test_expect_success "$desc respects --color" '
                git log --format=$color -1 --color >actual &&
                has_color actual
        '

        test_expect_success "$desc respects --no-color" '
                git -c color.ui=always log --format=$color -1 --no-color >actual &&
                has_no_color actual
        '

        test_expect_success TTY "$desc respects --color=auto (stdout is tty)" '
                test_terminal git log --format=$color -1 --color=auto >actual &&
                has_color actual
        '

        test_expect_success "$desc respects --color=auto (stdout not tty)" '
                (
                        TERM=vt100 && export TERM &&
                        git log --format=$color -1 --color=auto >actual &&
                        has_no_color actual
                )
        '
done

test_expect_success '%C(always,...) enables color even without tty' '
        git log --format=$ALWAYS_COLOR -1 >actual &&
        has_color actual
'

test_expect_success '%C(auto) respects --color' '
        git log --color --format="%C(auto)%H" -1 >actual.raw &&
        test_decode_color <actual.raw >actual &&
        echo "<YELLOW>$(git rev-parse HEAD)<RESET>" >expect &&
        test_cmp expect actual
'

test_expect_success '%C(auto) respects --no-color' '
        git log --no-color --format="%C(auto)%H" -1 >actual &&
        git rev-parse HEAD >expect &&
        test_cmp expect actual
'

test_expect_success 'rev-list %C(auto,...) respects --color' '
        git rev-list --color --format="%C(auto,green)foo%C(auto,reset)" \
                -1 HEAD >actual.raw &&
        test_decode_color <actual.raw >actual &&
        cat >expect <<-EOF &&
        commit $(git rev-parse HEAD)
        <GREEN>foo<RESET>
        EOF
        test_cmp expect actual
'

iconv -f utf-8 -t $test_encoding > commit-msg <<EOF
Test printing of complex bodies

This commit message is much longer than the others,
and it will be encoded in $test_encoding. We should therefore
include an ISO8859 character: ¡bueno!
EOF

test_expect_success 'setup complex body' '
        git config i18n.commitencoding $test_encoding &&
        echo change2 >foo && git commit -a -F commit-msg &&
        head3=$(git rev-parse --verify HEAD) &&
        head3_short=$(git rev-parse --short $head3)
'

test_format complex-encoding %e <<EOF
commit $head3
$test_encoding
commit $head2
$test_encoding
commit $head1
$test_encoding
EOF

test_format complex-subject %s <<EOF
commit $head3
Test printing of complex bodies
commit $head2
$changed_iso88591
commit $head1
$added_iso88591
EOF

test_format complex-subject-trunc "%<($truncate_count,trunc)%s" <<EOF
commit $head3
Test printing of c..
commit $head2
changed (ge${changed_utf8_part_iso88591}ndert)..
commit $head1
added (hinzugef${added_utf8_part_iso88591}gt..
EOF

test_format complex-subject-mtrunc "%<($truncate_count,mtrunc)%s" <<EOF
commit $head3
Test prin..ex bodies
commit $head2
changed (..dert) foo
commit $head1
added (hi..f${added_utf8_part_iso88591}gt) foo
EOF

test_format complex-subject-ltrunc "%<($truncate_count,ltrunc)%s" <<EOF
commit $head3
.. of complex bodies
commit $head2
..ged (ge${changed_utf8_part_iso88591}ndert) foo
commit $head1
.. (hinzugef${added_utf8_part_iso88591}gt) foo
EOF

test_expect_success 'prepare expected messages (for test %b)' '
        cat <<-EOF >expected.utf-8 &&
        commit $head3
        This commit message is much longer than the others,
        and it will be encoded in $test_encoding. We should therefore
        include an ISO8859 character: ¡bueno!

        commit $head2
        commit $head1
        EOF
        iconv -f utf-8 -t $test_encoding expected.utf-8 >expected.ISO8859-1
'

test_format complex-body %b <expected.ISO8859-1

# Git uses i18n.commitEncoding if no i18n.logOutputEncoding set
# so unset i18n.commitEncoding to test encoding conversion
git config --unset i18n.commitEncoding

test_format complex-subject-commitencoding-unset %s <<EOF
commit $head3
Test printing of complex bodies
commit $head2
$changed
commit $head1
$added
EOF

test_format complex-subject-commitencoding-unset-trunc "%<($truncate_count,trunc)%s" <<EOF
commit $head3
Test printing of c..
commit $head2
changed (ge${changed_utf8_part}ndert)..
commit $head1
added (hinzugef${added_utf8_part}gt..
EOF

test_format complex-subject-commitencoding-unset-mtrunc "%<($truncate_count,mtrunc)%s" <<EOF
commit $head3
Test prin..ex bodies
commit $head2
changed (..dert) foo
commit $head1
added (hi..f${added_utf8_part}gt) foo
EOF

test_format complex-subject-commitencoding-unset-ltrunc "%<($truncate_count,ltrunc)%s" <<EOF
commit $head3
.. of complex bodies
commit $head2
..ged (ge${changed_utf8_part}ndert) foo
commit $head1
.. (hinzugef${added_utf8_part}gt) foo
EOF

test_format complex-body-commitencoding-unset %b <expected.utf-8

test_expect_success '%x00 shows NUL' '
        echo  >expect commit $head3 &&
        echo >>expect fooQbar &&
        git rev-list -1 --format=foo%x00bar HEAD >actual.nul &&
        nul_to_q <actual.nul >actual &&
        test_cmp expect actual
'

test_expect_success '%ad respects --date=' '
        echo 2005-04-07 >expect.ad-short &&
        git log -1 --date=short --pretty=tformat:%ad >output.ad-short master &&
        test_cmp expect.ad-short output.ad-short
'

test_expect_success 'empty email' '
        test_tick &&
        C=$(GIT_AUTHOR_EMAIL= git commit-tree HEAD^{tree} </dev/null) &&
        A=$(git show --pretty=format:%an,%ae,%ad%n -s $C) &&
        verbose test "$A" = "A U Thor,,Thu Apr 7 15:14:13 2005 -0700"
'

test_expect_success 'del LF before empty (1)' '
        git show -s --pretty=format:"%s%n%-b%nThanks%n" HEAD^^ >actual &&
        test_line_count = 2 actual
'

test_expect_success 'del LF before empty (2)' '
        git show -s --pretty=format:"%s%n%-b%nThanks%n" HEAD >actual &&
        test_line_count = 6 actual &&
        grep "^$" actual
'

test_expect_success 'add LF before non-empty (1)' '
        git show -s --pretty=format:"%s%+b%nThanks%n" HEAD^^ >actual &&
        test_line_count = 2 actual
'

test_expect_success 'add LF before non-empty (2)' '
        git show -s --pretty=format:"%s%+b%nThanks%n" HEAD >actual &&
        test_line_count = 6 actual &&
        grep "^$" actual
'

test_expect_success 'add SP before non-empty (1)' '
        git show -s --pretty=format:"%s% bThanks" HEAD^^ >actual &&
        test $(wc -w <actual) = 3
'

test_expect_success 'add SP before non-empty (2)' '
        git show -s --pretty=format:"%s% sThanks" HEAD^^ >actual &&
        test $(wc -w <actual) = 6
'

test_expect_success '--abbrev' '
        echo SHORT SHORT SHORT >expect2 &&
        echo LONG LONG LONG >expect3 &&
        git log -1 --format="%h %h %h" HEAD >actual1 &&
        git log -1 --abbrev=5 --format="%h %h %h" HEAD >actual2 &&
        git log -1 --abbrev=5 --format="%H %H %H" HEAD >actual3 &&
        sed -e "s/$OID_REGEX/LONG/g" -e "s/$_x05/SHORT/g" <actual2 >fuzzy2 &&
        sed -e "s/$OID_REGEX/LONG/g" -e "s/$_x05/SHORT/g" <actual3 >fuzzy3 &&
        test_cmp expect2 fuzzy2 &&
        test_cmp expect3 fuzzy3 &&
        ! test_cmp actual1 actual2
'

test_expect_success '%H is not affected by --abbrev-commit' '
        git log -1 --format=%H --abbrev-commit --abbrev=20 HEAD >actual &&
        len=$(wc -c <actual) &&
        test $len = 41
'

test_expect_success '%h is not affected by --abbrev-commit' '
        git log -1 --format=%h --abbrev-commit --abbrev=20 HEAD >actual &&
        len=$(wc -c <actual) &&
        test $len = 21
'

test_expect_success '"%h %gD: %gs" is same as git-reflog' '
        git reflog >expect &&
        git log -g --format="%h %gD: %gs" >actual &&
        test_cmp expect actual
'

test_expect_success '"%h %gD: %gs" is same as git-reflog (with date)' '
        git reflog --date=raw >expect &&
        git log -g --format="%h %gD: %gs" --date=raw >actual &&
        test_cmp expect actual
'

test_expect_success '"%h %gD: %gs" is same as git-reflog (with --abbrev)' '
        git reflog --abbrev=13 --date=raw >expect &&
        git log -g --abbrev=13 --format="%h %gD: %gs" --date=raw >actual &&
        test_cmp expect actual
'

test_expect_success '%gd shortens ref name' '
        echo "master@{0}" >expect.gd-short &&
        git log -g -1 --format=%gd refs/heads/master >actual.gd-short &&
        test_cmp expect.gd-short actual.gd-short
'

test_expect_success 'reflog identity' '
        echo "C O Mitter:committer@example.com" >expect &&
        git log -g -1 --format="%gn:%ge" >actual &&
        test_cmp expect actual
'

test_expect_success 'oneline with empty message' '
        git commit -m "dummy" --allow-empty &&
        git commit -m "dummy" --allow-empty &&
        git filter-branch --msg-filter "sed -e s/dummy//" HEAD^^.. &&
        git rev-list --oneline HEAD >test.txt &&
        test_line_count = 5 test.txt &&
        git rev-list --oneline --graph HEAD >testg.txt &&
        test_line_count = 5 testg.txt
'

test_expect_success 'single-character name is parsed correctly' '
        git commit --author="a <a@example.com>" --allow-empty -m foo &&
        echo "a <a@example.com>" >expect &&
        git log -1 --format="%an <%ae>" >actual &&
        test_cmp expect actual
'

test_expect_success 'unused %G placeholders are passed through' '
        echo "%GX %G" >expect &&
        git log -1 --format="%GX %G" >actual &&
        test_cmp expect actual
'

test_done