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rebase -i: Document how temporary files are used

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Add documentation, inferred by reverse-engineering, about how
git-rebase--interactive.sh uses many of its temporary files.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Michael Haggerty 2010-01-14 06:54:45 +01:00 committed by Junio C Hamano
parent bdb011ade4
commit 80883bb30a
1 changed files with 34 additions and 7 deletions
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41
git-rebase--interactive.sh
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@ -34,11 +34,45 @@ root rebase all reachable commmits up to the root(s)
require_work_tree
DOTEST="$GIT_DIR/rebase-merge"
# The file containing rebase commands, comments, and empty lines.
# This file is created by "git rebase -i" then edited by the user. As
# the lines are processed, they are removed from the front of this
# file and written to the tail of $DONE.
TODO="$DOTEST"/git-rebase-todo
# The rebase command lines that have already been processed. A line
# is moved here when it is first handled, before any associated user
# actions.
DONE="$DOTEST"/done
# The commit message that is planned to be used for any changes that
# need to be committed following a user interaction.
MSG="$DOTEST"/message
# The file into which is accumulated the suggested commit message for
# squash/fixup commands. When the first of a series of squash/fixups
# is seen, the file is created and the commit message from the
# previous commit and from the first squash/fixup commit are written
# to it. The commit message for each subsequent squash/fixup commit
# is appended to the file as it is processed.
#
# The first line of the file is of the form
# # This is a combination of $COUNT commits.
# where $COUNT is the number of commits whose messages have been
# written to the file so far (including the initial "pick" commit).
# Each time that a commit message is processed, this line is read and
# updated. It is deleted just before the combined commit is made.
SQUASH_MSG="$DOTEST"/message-squash
# $REWRITTEN is the name of a directory containing files for each
# commit that is reachable by at least one merge base of $HEAD and
# $UPSTREAM. They are not necessarily rewritten, but their children
# might be. This ensures that commits on merged, but otherwise
# unrelated side branches are left alone. (Think "X" in the man page's
# example.)
REWRITTEN="$DOTEST"/rewritten
DROPPED="$DOTEST"/dropped
PRESERVE_MERGES=
STRATEGY=
@ -683,13 +717,6 @@ first and then run 'git rebase --continue' again."
test t = "$VERBOSE" && : > "$DOTEST"/verbose
if test t = "$PRESERVE_MERGES"
then
# $REWRITTEN contains files for each commit that is
# reachable by at least one merge base of $HEAD and
# $UPSTREAM. They are not necessarily rewritten, but
# their children might be.
# This ensures that commits on merged, but otherwise
# unrelated side branches are left alone. (Think "X"
# in the man page's example.)
if test -z "$REBASE_ROOT"
then
mkdir "$REWRITTEN" &&