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rebase -i: call editor just once for a multi-squash
Sometimes you want to squash more than two commits. Before this patch, the editor was fired up for each squash command. Now the editor is started only with the last squash command. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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@ -19,6 +19,8 @@ require_work_tree
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DOTEST="$GIT_DIR/.dotest-merge"
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TODO="$DOTEST"/todo
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DONE="$DOTEST"/done
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MSG="$DOTEST"/message
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SQUASH_MSG="$DOTEST"/message-squash
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REWRITTEN="$DOTEST"/rewritten
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PRESERVE_MERGES=
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STRATEGY=
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@ -158,6 +160,38 @@ pick_one_preserving_merges () {
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esac
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}
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nth_string () {
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case "$1" in
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*1[0-9]|*[04-9]) echo "$1"th;;
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*1) echo "$1"st;;
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*2) echo "$1"nd;;
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*3) echo "$1"rd;;
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esac
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}
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make_squash_message () {
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if [ -f "$SQUASH_MSG" ]; then
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COUNT=$(($(sed -n "s/^# This is [^0-9]*\([0-9]\+\).*/\1/p" \
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< "$SQUASH_MSG" | tail -n 1)+1))
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echo "# This is a combination of $COUNT commits."
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sed -n "2,\$p" < "$SQUASH_MSG"
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else
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COUNT=2
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echo "# This is a combination of two commits."
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echo "# The first commit's message is:"
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echo
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git cat-file commit HEAD | sed -e '1,/^$/d'
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echo
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fi
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echo "# This is the $(nth_string $COUNT) commit message:"
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echo
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git cat-file commit $1 | sed -e '1,/^$/d'
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}
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peek_next_command () {
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sed -n "1s/ .*$//p" < "$TODO"
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}
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do_next () {
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test -f "$DOTEST"/message && rm "$DOTEST"/message
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test -f "$DOTEST"/author-script && rm "$DOTEST"/author-script
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@ -194,17 +228,19 @@ do_next () {
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die "Cannot 'squash' without a previous commit"
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mark_action_done
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MSG="$DOTEST"/message
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echo "# This is a combination of two commits." > "$MSG"
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echo "# The first commit's message is:" >> "$MSG"
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echo >> "$MSG"
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git cat-file commit HEAD | sed -e '1,/^$/d' >> "$MSG"
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echo >> "$MSG"
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make_squash_message $sha1 > "$MSG"
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case "$(peek_next_command)" in
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squash)
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EDIT_COMMIT=
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cp "$MSG" "$SQUASH_MSG"
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;;
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*)
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EDIT_COMMIT=-e
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test -f "$SQUASH_MSG" && rm "$SQUASH_MSG"
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esac
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failed=f
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pick_one -n $sha1 || failed=t
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echo "# And this is the 2nd commit message:" >> "$MSG"
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echo >> "$MSG"
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git cat-file commit $sha1 | sed -e '1,/^$/d' >> "$MSG"
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git reset --soft HEAD^
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author_script=$(get_author_ident_from_commit $sha1)
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echo "$author_script" > "$DOTEST"/author-script
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@ -213,7 +249,7 @@ do_next () {
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# This is like --amend, but with a different message
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eval "$author_script"
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export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE
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git commit -F "$MSG" -e
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git commit -F "$MSG" $EDIT_COMMIT
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;;
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t)
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cp "$MSG" "$GIT_DIR"/MERGE_MSG
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@ -65,6 +65,7 @@ cat > fake-editor.sh << EOF
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#!/bin/sh
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test "\$1" = .git/COMMIT_EDITMSG && {
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test -z "\$FAKE_COMMIT_MESSAGE" || echo "\$FAKE_COMMIT_MESSAGE" > "\$1"
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test -z "\$FAKE_COMMIT_AMEND" || echo "\$FAKE_COMMIT_AMEND" >> "\$1"
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exit
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}
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test -z "\$FAKE_LINES" && exit
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@ -212,4 +213,12 @@ test_expect_success 'verbose flag is heeded, even after --continue' '
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grep "^ file1 | 2 +-$" output
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'
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test_expect_success 'multi-squash only fires up editor once' '
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base=$(git rev-parse HEAD~4) &&
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FAKE_COMMIT_AMEND="ONCE" FAKE_LINES="1 squash 2 squash 3 squash 4" \
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git rebase -i $base &&
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test $base = $(git rev-parse HEAD^) &&
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test 1 = $(git show | grep ONCE | wc -l)
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'
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test_done
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