#!/bin/sh
#
# Copyright (c) 2007 Kristian Høgsberg <krh@redhat.com>
#

# FIXME: Test the various index usages, -i and -o, test reflog,
# signoff

test_description='git commit'
. ./test-lib.sh
. "$TEST_DIRECTORY/diff-lib.sh"

author='The Real Author <someguy@his.email.org>'

test_tick

test_expect_success 'initial status' '
        echo bongo bongo >file &&
        git add file &&
        git status >actual &&
        test_i18ngrep "No commits yet" actual
'

test_expect_success 'fail initial amend' '
        test_must_fail git commit --amend
'

test_expect_success 'setup: initial commit' '
        git commit -m initial
'

test_expect_success '-m and -F do not mix' '
        git checkout HEAD file && echo >>file && git add file &&
        test_must_fail git commit -m foo -m bar -F file
'

test_expect_success '-m and -C do not mix' '
        git checkout HEAD file && echo >>file && git add file &&
        test_must_fail git commit -C HEAD -m illegal
'

test_expect_success 'paths and -a do not mix' '
        echo King of the bongo >file &&
        test_must_fail git commit -m foo -a file
'

test_expect_success PERL 'can use paths with --interactive' '
        echo bong-o-bong >file &&
        # 2: update, 1:st path, that is all, 7: quit
        ( echo 2; echo 1; echo; echo 7 ) |
        git commit -m foo --interactive file &&
        git reset --hard HEAD^
'

test_expect_success 'removed files and relative paths' '
        test_when_finished "rm -rf foo" &&
        git init foo &&
        >foo/foo.txt &&
        git -C foo add foo.txt &&
        git -C foo commit -m first &&
        git -C foo rm foo.txt &&

        mkdir -p foo/bar &&
        git -C foo/bar commit -m second ../foo.txt
'

test_expect_success 'using invalid commit with -C' '
        test_must_fail git commit --allow-empty -C bogus
'

test_expect_success 'nothing to commit' '
        git reset --hard &&
        test_must_fail git commit -m initial
'

test_expect_success '--dry-run fails with nothing to commit' '
        test_must_fail git commit -m initial --dry-run
'

test_expect_success '--short fails with nothing to commit' '
        test_must_fail git commit -m initial --short
'

test_expect_success '--porcelain fails with nothing to commit' '
        test_must_fail git commit -m initial --porcelain
'

test_expect_success '--long fails with nothing to commit' '
        test_must_fail git commit -m initial --long
'

test_expect_success 'setup: non-initial commit' '
        echo bongo bongo bongo >file &&
        git commit -m next -a
'

test_expect_success '--dry-run with stuff to commit returns ok' '
        echo bongo bongo bongo >>file &&
        git commit -m next -a --dry-run
'

test_expect_failure '--short with stuff to commit returns ok' '
        echo bongo bongo bongo >>file &&
        git commit -m next -a --short
'

test_expect_failure '--porcelain with stuff to commit returns ok' '
        echo bongo bongo bongo >>file &&
        git commit -m next -a --porcelain
'

test_expect_success '--long with stuff to commit returns ok' '
        echo bongo bongo bongo >>file &&
        git commit -m next -a --long
'

test_expect_success 'commit message from non-existing file' '
        echo more bongo: bongo bongo bongo bongo >file &&
        test_must_fail git commit -F gah -a
'

test_expect_success 'empty commit message' '
        # Empty except stray tabs and spaces on a few lines.
        sed -e "s/@//g" >msg <<-\EOF &&
                @               @
                @@
                @  @
                @Signed-off-by: hula@
        EOF
        test_must_fail git commit -F msg -a
'

test_expect_success 'template "emptyness" check does not kick in with -F' '
        git checkout HEAD file && echo >>file && git add file &&
        git commit -t file -F file
'

test_expect_success 'template "emptyness" check' '
        git checkout HEAD file && echo >>file && git add file &&
        test_must_fail git commit -t file 2>err &&
        test_i18ngrep "did not edit" err
'

test_expect_success 'setup: commit message from file' '
        git checkout HEAD file && echo >>file && git add file &&
        echo this is the commit message, coming from a file >msg &&
        git commit -F msg -a
'

test_expect_success 'amend commit' '
        cat >editor <<-\EOF &&
        #!/bin/sh
        sed -e "s/a file/an amend commit/g" < "$1" > "$1-"
        mv "$1-" "$1"
        EOF
        chmod 755 editor &&
        EDITOR=./editor git commit --amend
'

test_expect_success 'amend --only ignores staged contents' '
        cp file file.expect &&
        echo changed >file &&
        git add file &&
        git commit --no-edit --amend --only &&
        git cat-file blob HEAD:file >file.actual &&
        test_cmp file.expect file.actual &&
        git diff --exit-code
'

test_expect_success 'allow-empty --only ignores staged contents' '
        echo changed-again >file &&
        git add file &&
        git commit --allow-empty --only -m "empty" &&
        git cat-file blob HEAD:file >file.actual &&
        test_cmp file.expect file.actual &&
        git diff --exit-code
'

test_expect_success 'set up editor' '
        cat >editor <<-\EOF &&
        #!/bin/sh
        sed -e "s/unamended/amended/g" <"$1" >"$1-"
        mv "$1-" "$1"
        EOF
        chmod 755 editor
'

test_expect_success 'amend without launching editor' '
        echo unamended >expect &&
        git commit --allow-empty -m "unamended" &&
        echo needs more bongo >file &&
        git add file &&
        EDITOR=./editor git commit --no-edit --amend &&
        git diff --exit-code HEAD -- file &&
        git diff-tree -s --format=%s HEAD >msg &&
        test_cmp expect msg
'

test_expect_success '--amend --edit' '
        echo amended >expect &&
        git commit --allow-empty -m "unamended" &&
        echo bongo again >file &&
        git add file &&
        EDITOR=./editor git commit --edit --amend &&
        git diff-tree -s --format=%s HEAD >msg &&
        test_cmp expect msg
'

test_expect_success '--amend --edit of empty message' '
        cat >replace <<-\EOF &&
        #!/bin/sh
        echo "amended" >"$1"
        EOF
        chmod 755 replace &&
        git commit --allow-empty --allow-empty-message -m "" &&
        echo more bongo >file &&
        git add file &&
        EDITOR=./replace git commit --edit --amend &&
        git diff-tree -s --format=%s HEAD >msg &&
        ./replace expect &&
        test_cmp expect msg
'

test_expect_success '--amend to set message to empty' '
        echo bata >file &&
        git add file &&
        git commit -m "unamended" &&
        git commit --amend --allow-empty-message -m "" &&
        git diff-tree -s --format=%s HEAD >msg &&
        echo "" >expect &&
        test_cmp expect msg
'

test_expect_success '--amend to set empty message needs --allow-empty-message' '
        echo conga >file &&
        git add file &&
        git commit -m "unamended" &&
        test_must_fail git commit --amend -m "" &&
        git diff-tree -s --format=%s HEAD >msg &&
        echo "unamended" >expect &&
        test_cmp expect msg
'

test_expect_success '-m --edit' '
        echo amended >expect &&
        git commit --allow-empty -m buffer &&
        echo bongo bongo >file &&
        git add file &&
        EDITOR=./editor git commit -m unamended --edit &&
        git diff-tree -s  --format=%s HEAD >msg &&
        test_cmp expect msg
'

test_expect_success '-m and -F do not mix' '
        echo enough with the bongos >file &&
        test_must_fail git commit -F msg -m amending .
'

test_expect_success 'using message from other commit' '
        git commit -C HEAD^ .
'

test_expect_success 'editing message from other commit' '
        cat >editor <<-\EOF &&
        #!/bin/sh
        sed -e "s/amend/older/g"  < "$1" > "$1-"
        mv "$1-" "$1"
        EOF
        chmod 755 editor &&
        echo hula hula >file &&
        EDITOR=./editor git commit -c HEAD^ -a
'

test_expect_success 'message from stdin' '
        echo silly new contents >file &&
        echo commit message from stdin |
        git commit -F - -a
'

test_expect_success 'overriding author from command line' '
        echo gak >file &&
        git commit -m author \
                --author "Rubber Duck <rduck@convoy.org>" -a >output 2>&1 &&
        grep Rubber.Duck output
'

test_expect_success PERL 'interactive add' '
        echo 7 |
        git commit --interactive |
        grep "What now"
'

test_expect_success PERL "commit --interactive doesn't change index if editor aborts" '
        echo zoo >file &&
        test_must_fail git diff --exit-code >diff1 &&
        (echo u ; echo "*" ; echo q) |
        (
                EDITOR=: &&
                export EDITOR &&
                test_must_fail git commit --interactive
        ) &&
        git diff >diff2 &&
        compare_diff_patch diff1 diff2
'

test_expect_success 'editor not invoked if -F is given' '
        cat >editor <<-\EOF &&
        #!/bin/sh
        sed -e s/good/bad/g <"$1" >"$1-"
        mv "$1-" "$1"
        EOF
        chmod 755 editor &&

        echo A good commit message. >msg &&
        echo moo >file &&

        EDITOR=./editor git commit -a -F msg &&
        git show -s --pretty=format:%s >subject &&
        grep -q good subject &&

        echo quack >file &&
        echo Another good message. |
        EDITOR=./editor git commit -a -F - &&
        git show -s --pretty=format:%s >subject &&
        grep -q good subject
'

test_expect_success 'partial commit that involves removal (1)' '

        git rm --cached file &&
        mv file elif &&
        git add elif &&
        git commit -m "Partial: add elif" elif &&
        git diff-tree --name-status HEAD^ HEAD >current &&
        echo "A elif" >expected &&
        test_cmp expected current

'

test_expect_success 'partial commit that involves removal (2)' '

        git commit -m "Partial: remove file" file &&
        git diff-tree --name-status HEAD^ HEAD >current &&
        echo "D file" >expected &&
        test_cmp expected current

'

test_expect_success 'partial commit that involves removal (3)' '

        git rm --cached elif &&
        echo elif >elif &&
        git commit -m "Partial: modify elif" elif &&
        git diff-tree --name-status HEAD^ HEAD >current &&
        echo "M elif" >expected &&
        test_cmp expected current

'

test_expect_success 'amend commit to fix author' '

        oldtick=$GIT_AUTHOR_DATE &&
        test_tick &&
        git reset --hard &&
        git cat-file -p HEAD |
        sed -e "s/author.*/author $author $oldtick/" \
                -e "s/^\(committer.*> \).*$/\1$GIT_COMMITTER_DATE/" > \
                expected &&
        git commit --amend --author="$author" &&
        git cat-file -p HEAD > current &&
        test_cmp expected current

'

test_expect_success 'amend commit to fix date' '

        test_tick &&
        newtick=$GIT_AUTHOR_DATE &&
        git reset --hard &&
        git cat-file -p HEAD |
        sed -e "s/author.*/author $author $newtick/" \
                -e "s/^\(committer.*> \).*$/\1$GIT_COMMITTER_DATE/" > \
                expected &&
        git commit --amend --date="$newtick" &&
        git cat-file -p HEAD > current &&
        test_cmp expected current

'

test_expect_success 'commit mentions forced date in output' '
        git commit --amend --date=2010-01-02T03:04:05 >output &&
        grep "Date: *Sat Jan 2 03:04:05 2010" output
'

test_expect_success 'commit complains about completely bogus dates' '
        test_must_fail git commit --amend --date=seventeen
'

test_expect_success 'commit --date allows approxidate' '
        git commit --amend \
                --date="midnight the 12th of october, anno domini 1979" &&
        echo "Fri Oct 12 00:00:00 1979 +0000" >expect &&
        git log -1 --format=%ad >actual &&
        test_cmp expect actual
'

test_expect_success 'sign off (1)' '

        echo 1 >positive &&
        git add positive &&
        git commit -s -m "thank you" &&
        git cat-file commit HEAD | sed -e "1,/^\$/d" >actual &&
        (
                echo thank you
                echo
                git var GIT_COMMITTER_IDENT |
                sed -e "s/>.*/>/" -e "s/^/Signed-off-by: /"
        ) >expected &&
        test_cmp expected actual

'

test_expect_success 'sign off (2)' '

        echo 2 >positive &&
        git add positive &&
        existing="Signed-off-by: Watch This <watchthis@example.com>" &&
        git commit -s -m "thank you

$existing" &&
        git cat-file commit HEAD | sed -e "1,/^\$/d" >actual &&
        (
                echo thank you
                echo
                echo $existing
                git var GIT_COMMITTER_IDENT |
                sed -e "s/>.*/>/" -e "s/^/Signed-off-by: /"
        ) >expected &&
        test_cmp expected actual

'

test_expect_success 'signoff gap' '

        echo 3 >positive &&
        git add positive &&
        alt="Alt-RFC-822-Header: Value" &&
        git commit -s -m "welcome

$alt" &&
        git cat-file commit HEAD | sed -e "1,/^\$/d" > actual &&
        (
                echo welcome
                echo
                echo $alt
                git var GIT_COMMITTER_IDENT |
                sed -e "s/>.*/>/" -e "s/^/Signed-off-by: /"
        ) >expected &&
        test_cmp expected actual
'

test_expect_success 'signoff gap 2' '

        echo 4 >positive &&
        git add positive &&
        alt="fixed: 34" &&
        git commit -s -m "welcome

We have now
$alt" &&
        git cat-file commit HEAD | sed -e "1,/^\$/d" > actual &&
        (
                echo welcome
                echo
                echo We have now
                echo $alt
                echo
                git var GIT_COMMITTER_IDENT |
                sed -e "s/>.*/>/" -e "s/^/Signed-off-by: /"
        ) >expected &&
        test_cmp expected actual
'

test_expect_success 'signoff respects trailer config' '

        echo 5 >positive &&
        git add positive &&
        git commit -s -m "subject

non-trailer line
Myfooter: x" &&
        git cat-file commit HEAD | sed -e "1,/^\$/d" > actual &&
        (
                echo subject
                echo
                echo non-trailer line
                echo Myfooter: x
                echo
                echo "Signed-off-by: $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>"
        ) >expected &&
        test_cmp expected actual &&

        echo 6 >positive &&
        git add positive &&
        git -c "trailer.Myfooter.ifexists=add" commit -s -m "subject

non-trailer line
Myfooter: x" &&
        git cat-file commit HEAD | sed -e "1,/^\$/d" > actual &&
        (
                echo subject
                echo
                echo non-trailer line
                echo Myfooter: x
                echo "Signed-off-by: $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>"
        ) >expected &&
        test_cmp expected actual
'

test_expect_success 'multiple -m' '

        >negative &&
        git add negative &&
        git commit -m "one" -m "two" -m "three" &&
        git cat-file commit HEAD | sed -e "1,/^\$/d" >actual &&
        (
                echo one
                echo
                echo two
                echo
                echo three
        ) >expected &&
        test_cmp expected actual

'

test_expect_success 'amend commit to fix author' '

        oldtick=$GIT_AUTHOR_DATE &&
        test_tick &&
        git reset --hard &&
        git cat-file -p HEAD |
        sed -e "s/author.*/author $author $oldtick/" \
                -e "s/^\(committer.*> \).*$/\1$GIT_COMMITTER_DATE/" > \
                expected &&
        git commit --amend --author="$author" &&
        git cat-file -p HEAD > current &&
        test_cmp expected current

'

test_expect_success 'git commit <file> with dirty index' '
        echo tacocat > elif &&
        echo tehlulz > chz &&
        git add chz &&
        git commit elif -m "tacocat is a palindrome" &&
        git show --stat | grep elif &&
        git diff --cached | grep chz
'

test_expect_success 'same tree (single parent)' '

        git reset --hard &&
        test_must_fail git commit -m empty

'

test_expect_success 'same tree (single parent) --allow-empty' '

        git commit --allow-empty -m "forced empty" &&
        git cat-file commit HEAD | grep forced

'

test_expect_success 'same tree (merge and amend merge)' '

        git checkout -b side HEAD^ &&
        echo zero >zero &&
        git add zero &&
        git commit -m "add zero" &&
        git checkout master &&

        git merge -s ours side -m "empty ok" &&
        git diff HEAD^ HEAD >actual &&
        : >expected &&
        test_cmp expected actual &&

        git commit --amend -m "empty really ok" &&
        git diff HEAD^ HEAD >actual &&
        : >expected &&
        test_cmp expected actual

'

test_expect_success 'amend using the message from another commit' '

        git reset --hard &&
        test_tick &&
        git commit --allow-empty -m "old commit" &&
        old=$(git rev-parse --verify HEAD) &&
        test_tick &&
        git commit --allow-empty -m "new commit" &&
        new=$(git rev-parse --verify HEAD) &&
        test_tick &&
        git commit --allow-empty --amend -C "$old" &&
        git show --pretty="format:%ad %s" "$old" >expected &&
        git show --pretty="format:%ad %s" HEAD >actual &&
        test_cmp expected actual

'

test_expect_success 'amend using the message from a commit named with tag' '

        git reset --hard &&
        test_tick &&
        git commit --allow-empty -m "old commit" &&
        old=$(git rev-parse --verify HEAD) &&
        git tag -a -m "tag on old" tagged-old HEAD &&
        test_tick &&
        git commit --allow-empty -m "new commit" &&
        new=$(git rev-parse --verify HEAD) &&
        test_tick &&
        git commit --allow-empty --amend -C tagged-old &&
        git show --pretty="format:%ad %s" "$old" >expected &&
        git show --pretty="format:%ad %s" HEAD >actual &&
        test_cmp expected actual

'

test_expect_success 'amend can copy notes' '

        git config notes.rewrite.amend true &&
        git config notes.rewriteRef "refs/notes/*" &&
        test_commit foo &&
        git notes add -m"a note" &&
        test_tick &&
        git commit --amend -m"new foo" &&
        test "$(git notes show)" = "a note"

'

test_expect_success 'commit a file whose name is a dash' '
        git reset --hard &&
        for i in 1 2 3 4 5
        do
                echo $i
        done >./- &&
        git add ./- &&
        test_tick &&
        git commit -m "add dash" >output </dev/null &&
        test_i18ngrep " changed, 5 insertions" output
'

test_expect_success '--only works on to-be-born branch' '
        # This test relies on having something in the index, as it
        # would not otherwise actually prove much.  So check this.
        test -n "$(git ls-files)" &&
        git checkout --orphan orphan &&
        echo foo >newfile &&
        git add newfile &&
        git commit --only newfile -m"--only on unborn branch" &&
        echo newfile >expected &&
        git ls-tree -r --name-only HEAD >actual &&
        test_cmp expected actual
'

test_expect_success '--dry-run with conflicts fixed from a merge' '
        # setup two branches with conflicting information
        # in the same file, resolve the conflict,
        # call commit with --dry-run
        echo "Initial contents, unimportant" >test-file &&
        git add test-file &&
        git commit -m "Initial commit" &&
        echo "commit-1-state" >test-file &&
        git commit -m "commit 1" -i test-file &&
        git tag commit-1 &&
        git checkout -b branch-2 HEAD^1 &&
        echo "commit-2-state" >test-file &&
        git commit -m "commit 2" -i test-file &&
        ! $(git merge --no-commit commit-1) &&
        echo "commit-2-state" >test-file &&
        git add test-file &&
        git commit --dry-run &&
        git commit -m "conflicts fixed from merge."
'

test_done