Revision 55672a39b4e0f82e6f997879724ea37ca7e0d765 authored by Junio C Hamano on 09 May 2016, 18:36:09 UTC, committed by Junio C Hamano on 09 May 2016, 19:32:42 UTC
We never used the "letters" form since we came up with "test_seq" to replace use of non-portable "seq" in our test script, which we introduced it at d17cf5f3 (tests: Introduce test_seq, 2012-08-04). We use this helper to either iterate for N times (i.e. the values on the lines do not even matter), or just to get N distinct strings (i.e. the values on the lines themselves do not really matter, but we care that they are different from each other and reproducible). Stop promising that we may allow using "letters"; this would open an easier reimplementation that does not rely on $PERL, if somebody later wants to. Signed-off-by: Junio C Hamano <gitster@pobox.com>
1 parent 7654286
git-mergetool.sh
#!/bin/sh
#
# This program resolves merge conflicts in git
#
# Copyright (c) 2006 Theodore Y. Ts'o
#
# This file is licensed under the GPL v2, or a later version
# at the discretion of Junio C Hamano.
#
USAGE='[--tool=tool] [--tool-help] [-y|--no-prompt|--prompt] [file to merge] ...'
SUBDIRECTORY_OK=Yes
NONGIT_OK=Yes
OPTIONS_SPEC=
TOOL_MODE=merge
. git-sh-setup
. git-mergetool--lib
# Returns true if the mode reflects a symlink
is_symlink () {
test "$1" = 120000
}
is_submodule () {
test "$1" = 160000
}
local_present () {
test -n "$local_mode"
}
remote_present () {
test -n "$remote_mode"
}
base_present () {
test -n "$base_mode"
}
mergetool_tmpdir_init () {
if test "$(git config --bool mergetool.writeToTemp)" != true
then
MERGETOOL_TMPDIR=.
return 0
fi
if MERGETOOL_TMPDIR=$(mktemp -d -t "git-mergetool-XXXXXX" 2>/dev/null)
then
return 0
fi
die "error: mktemp is needed when 'mergetool.writeToTemp' is true"
}
cleanup_temp_files () {
if test "$1" = --save-backup
then
rm -rf -- "$MERGED.orig"
test -e "$BACKUP" && mv -- "$BACKUP" "$MERGED.orig"
rm -f -- "$LOCAL" "$REMOTE" "$BASE"
else
rm -f -- "$LOCAL" "$REMOTE" "$BASE" "$BACKUP"
fi
if test "$MERGETOOL_TMPDIR" != "."
then
rmdir "$MERGETOOL_TMPDIR"
fi
}
describe_file () {
mode="$1"
branch="$2"
file="$3"
printf " {%s}: " "$branch"
if test -z "$mode"
then
echo "deleted"
elif is_symlink "$mode"
then
echo "a symbolic link -> '$(cat "$file")'"
elif is_submodule "$mode"
then
echo "submodule commit $file"
elif base_present
then
echo "modified file"
else
echo "created file"
fi
}
resolve_symlink_merge () {
while true
do
printf "Use (l)ocal or (r)emote, or (a)bort? "
read ans || return 1
case "$ans" in
[lL]*)
git checkout-index -f --stage=2 -- "$MERGED"
git add -- "$MERGED"
cleanup_temp_files --save-backup
return 0
;;
[rR]*)
git checkout-index -f --stage=3 -- "$MERGED"
git add -- "$MERGED"
cleanup_temp_files --save-backup
return 0
;;
[aA]*)
return 1
;;
esac
done
}
resolve_deleted_merge () {
while true
do
if base_present
then
printf "Use (m)odified or (d)eleted file, or (a)bort? "
else
printf "Use (c)reated or (d)eleted file, or (a)bort? "
fi
read ans || return 1
case "$ans" in
[mMcC]*)
git add -- "$MERGED"
cleanup_temp_files --save-backup
return 0
;;
[dD]*)
git rm -- "$MERGED" > /dev/null
cleanup_temp_files
return 0
;;
[aA]*)
return 1
;;
esac
done
}
resolve_submodule_merge () {
while true
do
printf "Use (l)ocal or (r)emote, or (a)bort? "
read ans || return 1
case "$ans" in
[lL]*)
if ! local_present
then
if test -n "$(git ls-tree HEAD -- "$MERGED")"
then
# Local isn't present, but it's a subdirectory
git ls-tree --full-name -r HEAD -- "$MERGED" |
git update-index --index-info || exit $?
else
test -e "$MERGED" && mv -- "$MERGED" "$BACKUP"
git update-index --force-remove "$MERGED"
cleanup_temp_files --save-backup
fi
elif is_submodule "$local_mode"
then
stage_submodule "$MERGED" "$local_sha1"
else
git checkout-index -f --stage=2 -- "$MERGED"
git add -- "$MERGED"
fi
return 0
;;
[rR]*)
if ! remote_present
then
if test -n "$(git ls-tree MERGE_HEAD -- "$MERGED")"
then
# Remote isn't present, but it's a subdirectory
git ls-tree --full-name -r MERGE_HEAD -- "$MERGED" |
git update-index --index-info || exit $?
else
test -e "$MERGED" && mv -- "$MERGED" "$BACKUP"
git update-index --force-remove "$MERGED"
fi
elif is_submodule "$remote_mode"
then
! is_submodule "$local_mode" &&
test -e "$MERGED" &&
mv -- "$MERGED" "$BACKUP"
stage_submodule "$MERGED" "$remote_sha1"
else
test -e "$MERGED" && mv -- "$MERGED" "$BACKUP"
git checkout-index -f --stage=3 -- "$MERGED"
git add -- "$MERGED"
fi
cleanup_temp_files --save-backup
return 0
;;
[aA]*)
return 1
;;
esac
done
}
stage_submodule () {
path="$1"
submodule_sha1="$2"
mkdir -p "$path" ||
die "fatal: unable to create directory for module at $path"
# Find $path relative to work tree
work_tree_root=$(cd_to_toplevel && pwd)
work_rel_path=$(cd "$path" &&
GIT_WORK_TREE="${work_tree_root}" git rev-parse --show-prefix
)
test -n "$work_rel_path" ||
die "fatal: unable to get path of module $path relative to work tree"
git update-index --add --replace --cacheinfo 160000 "$submodule_sha1" "${work_rel_path%/}" || die
}
checkout_staged_file () {
tmpfile=$(expr \
"$(git checkout-index --temp --stage="$1" "$2" 2>/dev/null)" \
: '\([^ ]*\) ')
if test $? -eq 0 && test -n "$tmpfile"
then
mv -- "$(git rev-parse --show-cdup)$tmpfile" "$3"
else
>"$3"
fi
}
merge_file () {
MERGED="$1"
f=$(git ls-files -u -- "$MERGED")
if test -z "$f"
then
if test ! -f "$MERGED"
then
echo "$MERGED: file not found"
else
echo "$MERGED: file does not need merging"
fi
return 1
fi
if BASE=$(expr "$MERGED" : '\(.*\)\.[^/]*$')
then
ext=$(expr "$MERGED" : '.*\(\.[^/]*\)$')
else
BASE=$MERGED
ext=
fi
mergetool_tmpdir_init
if test "$MERGETOOL_TMPDIR" != "."
then
# If we're using a temporary directory then write to the
# top-level of that directory.
BASE=${BASE##*/}
fi
BACKUP="$MERGETOOL_TMPDIR/${BASE}_BACKUP_$$$ext"
LOCAL="$MERGETOOL_TMPDIR/${BASE}_LOCAL_$$$ext"
REMOTE="$MERGETOOL_TMPDIR/${BASE}_REMOTE_$$$ext"
BASE="$MERGETOOL_TMPDIR/${BASE}_BASE_$$$ext"
base_mode=$(git ls-files -u -- "$MERGED" | awk '{if ($3==1) print $1;}')
local_mode=$(git ls-files -u -- "$MERGED" | awk '{if ($3==2) print $1;}')
remote_mode=$(git ls-files -u -- "$MERGED" | awk '{if ($3==3) print $1;}')
if is_submodule "$local_mode" || is_submodule "$remote_mode"
then
echo "Submodule merge conflict for '$MERGED':"
local_sha1=$(git ls-files -u -- "$MERGED" | awk '{if ($3==2) print $2;}')
remote_sha1=$(git ls-files -u -- "$MERGED" | awk '{if ($3==3) print $2;}')
describe_file "$local_mode" "local" "$local_sha1"
describe_file "$remote_mode" "remote" "$remote_sha1"
resolve_submodule_merge
return
fi
mv -- "$MERGED" "$BACKUP"
cp -- "$BACKUP" "$MERGED"
checkout_staged_file 1 "$MERGED" "$BASE"
checkout_staged_file 2 "$MERGED" "$LOCAL"
checkout_staged_file 3 "$MERGED" "$REMOTE"
if test -z "$local_mode" || test -z "$remote_mode"
then
echo "Deleted merge conflict for '$MERGED':"
describe_file "$local_mode" "local" "$LOCAL"
describe_file "$remote_mode" "remote" "$REMOTE"
resolve_deleted_merge
return
fi
if is_symlink "$local_mode" || is_symlink "$remote_mode"
then
echo "Symbolic link merge conflict for '$MERGED':"
describe_file "$local_mode" "local" "$LOCAL"
describe_file "$remote_mode" "remote" "$REMOTE"
resolve_symlink_merge
return
fi
echo "Normal merge conflict for '$MERGED':"
describe_file "$local_mode" "local" "$LOCAL"
describe_file "$remote_mode" "remote" "$REMOTE"
if test "$guessed_merge_tool" = true || test "$prompt" = true
then
printf "Hit return to start merge resolution tool (%s): " "$merge_tool"
read ans || return 1
fi
if base_present
then
present=true
else
present=false
fi
if ! run_merge_tool "$merge_tool" "$present"
then
echo "merge of $MERGED failed" 1>&2
mv -- "$BACKUP" "$MERGED"
if test "$merge_keep_temporaries" = "false"
then
cleanup_temp_files
fi
return 1
fi
if test "$merge_keep_backup" = "true"
then
mv -- "$BACKUP" "$MERGED.orig"
else
rm -- "$BACKUP"
fi
git add -- "$MERGED"
cleanup_temp_files
return 0
}
prompt=$(git config --bool mergetool.prompt)
guessed_merge_tool=false
while test $# != 0
do
case "$1" in
--tool-help=*)
TOOL_MODE=${1#--tool-help=}
show_tool_help
;;
--tool-help)
show_tool_help
;;
-t|--tool*)
case "$#,$1" in
*,*=*)
merge_tool=$(expr "z$1" : 'z-[^=]*=\(.*\)')
;;
1,*)
usage ;;
*)
merge_tool="$2"
shift ;;
esac
;;
-y|--no-prompt)
prompt=false
;;
--prompt)
prompt=true
;;
--)
shift
break
;;
-*)
usage
;;
*)
break
;;
esac
shift
done
prompt_after_failed_merge () {
while true
do
printf "Continue merging other unresolved paths (y/n) ? "
read ans || return 1
case "$ans" in
[yY]*)
return 0
;;
[nN]*)
return 1
;;
esac
done
}
git_dir_init
require_work_tree
if test -z "$merge_tool"
then
# Check if a merge tool has been configured
merge_tool=$(get_configured_merge_tool)
# Try to guess an appropriate merge tool if no tool has been set.
if test -z "$merge_tool"
then
merge_tool=$(guess_merge_tool) || exit
guessed_merge_tool=true
fi
fi
merge_keep_backup="$(git config --bool mergetool.keepBackup || echo true)"
merge_keep_temporaries="$(git config --bool mergetool.keepTemporaries || echo false)"
files=
if test $# -eq 0
then
cd_to_toplevel
if test -e "$GIT_DIR/MERGE_RR"
then
files=$(git rerere remaining)
else
files=$(git ls-files -u | sed -e 's/^[^ ]* //' | sort -u)
fi
else
files=$(git ls-files -u -- "$@" | sed -e 's/^[^ ]* //' | sort -u)
fi
if test -z "$files"
then
echo "No files need merging"
exit 0
fi
printf "Merging:\n"
printf "%s\n" "$files"
IFS='
'
rc=0
for i in $files
do
printf "\n"
if ! merge_file "$i"
then
rc=1
prompt_after_failed_merge || exit 1
fi
done
exit $rc
![swh spinner](/static/img/swh-spinner.gif)
Computing file changes ...