Re: [FEATURE] Proposal: git stash --only-unstaged

On 17/08/2025 17:08, Junio C Hamano wrote:

Phillip Wood [off-list ref] writes:

quoted

To use it create your stash with "git stash push --keep-index" and then
use the script to pop the unstaged changes rather than using "git stash
pop". If the script proves to be useful then perhaps we could add an
"--unstaged" option to "git stash pop"

Hmph, would the behaviour useful enough that it should be always
enabled, without any new option?  I strongly suspect that those who
worked on adding "--keep-index" option did not expect the user to be
mucking with the working tree files while "testing the staged stuff
by updating the working tree files to match it and nothing else",
and as long as the end-user stays within that originally designed
use case, nothing changes for them, no?

Yes it probably would make sense if we knew that the stash had been created with "--keep-index". At the moment I don't think there is anywhere to tell from looking at the stash if that's the case but we could add a trailer to the commit message when we create the stash to record that it was created with "--keep-index" and apply only the unstaged changes when we see that trailer.

Thanks

Phillip

Thanks.

(the script left for reference without comments below).

quoted

---- 8< ----
#!/bin/sh

USAGE="${0##*/} [<stash>]"
SUBDIRECTORY_OK=1
. "$(git --exec-path)/git-sh-setup"
cd_to_toplevel
require_clean_work_tree stash-pop-unstaged

LF='
'
stash="${1:-stash@{0}}"
if ! stash_oid="$(git rev-parse --verify --quiet "$stash")" ||
    ! oid1="$(git rev-parse --verify --quiet $stash_oid^1)" ||
    ! oid2="$(git rev-parse $stash_oid^2^@ 2>/dev/null)" ||
    test "$oid1" != "$oid2"
then
     die "error: '$stash' does not look like a stash commit"
fi
merge_output="$(git merge-tree --merge-base=$stash_oid^2: HEAD: $stash_oid:)"
status=$?
if test $status = 0
then
     tree=$merge_output
     conflict_info=
     messages=
elif test $status = 1
then
     merge_output="$merge_output$LF"
     tree="${merge_output%%$LF*}"
     conflict_info="${merge_output%%$LF$LF*}"
     conflict_info="${conflict_info#*$LF}"
     messages="${merge_output#*$LF$LF}"
else
     exit 128
fi
git read-tree --index-output="$GIT_DIR/stash-pop-index" -m -u HEAD $tree &&
rm "$GIT_DIR/stash-pop-index" &&
if test -n "$conflict_info"
then
     printf '%s' "$messages" >&2
     printf '%s\n' "$conflict_info" | git update-index --index-info
else
     git stash drop "$stash"
fi