mirror of
https://github.com/git/git.git
synced 2024-11-24 18:33:43 +08:00
d651a54b8a
Eliminate an unnecessary prompt to continue after failed merger, by not calling the prompt_after_failed_merge function when only one iteration remains. Uses positional parameters to count files in the list to make it easier to see if we have any more paths to process from within the loop. Signed-off-by: Nicholas Guriev <guriev-ns@ya.ru> Signed-off-by: Junio C Hamano <gitster@pobox.com>
510 lines
10 KiB
Bash
Executable File
510 lines
10 KiB
Bash
Executable File
#!/bin/sh
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#
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# This program resolves merge conflicts in git
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#
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# Copyright (c) 2006 Theodore Y. Ts'o
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# Copyright (c) 2009-2016 David Aguilar
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#
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# This file is licensed under the GPL v2, or a later version
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# at the discretion of Junio C Hamano.
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#
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USAGE='[--tool=tool] [--tool-help] [-y|--no-prompt|--prompt] [-O<orderfile>] [file to merge] ...'
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SUBDIRECTORY_OK=Yes
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NONGIT_OK=Yes
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OPTIONS_SPEC=
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TOOL_MODE=merge
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. git-sh-setup
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. git-mergetool--lib
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# Returns true if the mode reflects a symlink
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is_symlink () {
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test "$1" = 120000
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}
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is_submodule () {
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test "$1" = 160000
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}
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local_present () {
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test -n "$local_mode"
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}
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remote_present () {
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test -n "$remote_mode"
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}
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base_present () {
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test -n "$base_mode"
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}
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mergetool_tmpdir_init () {
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if test "$(git config --bool mergetool.writeToTemp)" != true
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then
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MERGETOOL_TMPDIR=.
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return 0
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fi
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if MERGETOOL_TMPDIR=$(mktemp -d -t "git-mergetool-XXXXXX" 2>/dev/null)
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then
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return 0
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fi
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die "error: mktemp is needed when 'mergetool.writeToTemp' is true"
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}
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cleanup_temp_files () {
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if test "$1" = --save-backup
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then
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rm -rf -- "$MERGED.orig"
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test -e "$BACKUP" && mv -- "$BACKUP" "$MERGED.orig"
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rm -f -- "$LOCAL" "$REMOTE" "$BASE"
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else
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rm -f -- "$LOCAL" "$REMOTE" "$BASE" "$BACKUP"
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fi
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if test "$MERGETOOL_TMPDIR" != "."
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then
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rmdir "$MERGETOOL_TMPDIR"
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fi
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}
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describe_file () {
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mode="$1"
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branch="$2"
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file="$3"
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printf " {%s}: " "$branch"
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if test -z "$mode"
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then
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echo "deleted"
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elif is_symlink "$mode"
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then
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echo "a symbolic link -> '$(cat "$file")'"
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elif is_submodule "$mode"
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then
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echo "submodule commit $file"
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elif base_present
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then
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echo "modified file"
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else
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echo "created file"
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fi
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}
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resolve_symlink_merge () {
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while true
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do
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printf "Use (l)ocal or (r)emote, or (a)bort? "
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read ans || return 1
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case "$ans" in
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[lL]*)
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git checkout-index -f --stage=2 -- "$MERGED"
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git add -- "$MERGED"
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cleanup_temp_files --save-backup
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return 0
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;;
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[rR]*)
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git checkout-index -f --stage=3 -- "$MERGED"
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git add -- "$MERGED"
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cleanup_temp_files --save-backup
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return 0
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;;
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[aA]*)
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return 1
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;;
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esac
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done
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}
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resolve_deleted_merge () {
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while true
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do
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if base_present
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then
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printf "Use (m)odified or (d)eleted file, or (a)bort? "
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else
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printf "Use (c)reated or (d)eleted file, or (a)bort? "
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fi
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read ans || return 1
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case "$ans" in
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[mMcC]*)
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git add -- "$MERGED"
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if test "$merge_keep_backup" = "true"
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then
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cleanup_temp_files --save-backup
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else
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cleanup_temp_files
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fi
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return 0
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;;
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[dD]*)
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git rm -- "$MERGED" > /dev/null
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cleanup_temp_files
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return 0
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;;
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[aA]*)
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if test "$merge_keep_temporaries" = "false"
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then
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cleanup_temp_files
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fi
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return 1
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;;
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esac
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done
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}
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resolve_submodule_merge () {
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while true
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do
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printf "Use (l)ocal or (r)emote, or (a)bort? "
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read ans || return 1
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case "$ans" in
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[lL]*)
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if ! local_present
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then
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if test -n "$(git ls-tree HEAD -- "$MERGED")"
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then
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# Local isn't present, but it's a subdirectory
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git ls-tree --full-name -r HEAD -- "$MERGED" |
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git update-index --index-info || exit $?
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else
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test -e "$MERGED" && mv -- "$MERGED" "$BACKUP"
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git update-index --force-remove "$MERGED"
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cleanup_temp_files --save-backup
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fi
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elif is_submodule "$local_mode"
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then
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stage_submodule "$MERGED" "$local_sha1"
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else
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git checkout-index -f --stage=2 -- "$MERGED"
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git add -- "$MERGED"
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fi
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return 0
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;;
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[rR]*)
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if ! remote_present
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then
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if test -n "$(git ls-tree MERGE_HEAD -- "$MERGED")"
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then
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# Remote isn't present, but it's a subdirectory
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git ls-tree --full-name -r MERGE_HEAD -- "$MERGED" |
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git update-index --index-info || exit $?
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else
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test -e "$MERGED" && mv -- "$MERGED" "$BACKUP"
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git update-index --force-remove "$MERGED"
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fi
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elif is_submodule "$remote_mode"
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then
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! is_submodule "$local_mode" &&
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test -e "$MERGED" &&
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mv -- "$MERGED" "$BACKUP"
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stage_submodule "$MERGED" "$remote_sha1"
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else
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test -e "$MERGED" && mv -- "$MERGED" "$BACKUP"
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git checkout-index -f --stage=3 -- "$MERGED"
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git add -- "$MERGED"
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fi
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cleanup_temp_files --save-backup
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return 0
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;;
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[aA]*)
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return 1
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;;
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esac
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done
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}
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stage_submodule () {
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path="$1"
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submodule_sha1="$2"
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mkdir -p "$path" ||
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die "fatal: unable to create directory for module at $path"
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# Find $path relative to work tree
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work_tree_root=$(cd_to_toplevel && pwd)
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work_rel_path=$(cd "$path" &&
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GIT_WORK_TREE="${work_tree_root}" git rev-parse --show-prefix
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)
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test -n "$work_rel_path" ||
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die "fatal: unable to get path of module $path relative to work tree"
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git update-index --add --replace --cacheinfo 160000 "$submodule_sha1" "${work_rel_path%/}" || die
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}
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checkout_staged_file () {
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tmpfile=$(expr \
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"$(git checkout-index --temp --stage="$1" "$2" 2>/dev/null)" \
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: '\([^ ]*\) ')
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if test $? -eq 0 && test -n "$tmpfile"
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then
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mv -- "$(git rev-parse --show-cdup)$tmpfile" "$3"
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else
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>"$3"
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fi
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}
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merge_file () {
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MERGED="$1"
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f=$(git ls-files -u -- "$MERGED")
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if test -z "$f"
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then
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if test ! -f "$MERGED"
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then
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echo "$MERGED: file not found"
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else
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echo "$MERGED: file does not need merging"
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fi
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return 1
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fi
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if BASE=$(expr "$MERGED" : '\(.*\)\.[^/]*$')
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then
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ext=$(expr "$MERGED" : '.*\(\.[^/]*\)$')
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else
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BASE=$MERGED
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ext=
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fi
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mergetool_tmpdir_init
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if test "$MERGETOOL_TMPDIR" != "."
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then
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# If we're using a temporary directory then write to the
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# top-level of that directory.
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BASE=${BASE##*/}
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fi
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BACKUP="$MERGETOOL_TMPDIR/${BASE}_BACKUP_$$$ext"
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LOCAL="$MERGETOOL_TMPDIR/${BASE}_LOCAL_$$$ext"
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REMOTE="$MERGETOOL_TMPDIR/${BASE}_REMOTE_$$$ext"
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BASE="$MERGETOOL_TMPDIR/${BASE}_BASE_$$$ext"
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base_mode=$(git ls-files -u -- "$MERGED" | awk '{if ($3==1) print $1;}')
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local_mode=$(git ls-files -u -- "$MERGED" | awk '{if ($3==2) print $1;}')
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remote_mode=$(git ls-files -u -- "$MERGED" | awk '{if ($3==3) print $1;}')
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if is_submodule "$local_mode" || is_submodule "$remote_mode"
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then
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echo "Submodule merge conflict for '$MERGED':"
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local_sha1=$(git ls-files -u -- "$MERGED" | awk '{if ($3==2) print $2;}')
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remote_sha1=$(git ls-files -u -- "$MERGED" | awk '{if ($3==3) print $2;}')
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describe_file "$local_mode" "local" "$local_sha1"
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describe_file "$remote_mode" "remote" "$remote_sha1"
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resolve_submodule_merge
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return
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fi
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if test -f "$MERGED"
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then
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mv -- "$MERGED" "$BACKUP"
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cp -- "$BACKUP" "$MERGED"
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fi
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# Create a parent directory to handle delete/delete conflicts
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# where the base's directory no longer exists.
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mkdir -p "$(dirname "$MERGED")"
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checkout_staged_file 1 "$MERGED" "$BASE"
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checkout_staged_file 2 "$MERGED" "$LOCAL"
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checkout_staged_file 3 "$MERGED" "$REMOTE"
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if test -z "$local_mode" || test -z "$remote_mode"
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then
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echo "Deleted merge conflict for '$MERGED':"
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describe_file "$local_mode" "local" "$LOCAL"
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describe_file "$remote_mode" "remote" "$REMOTE"
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resolve_deleted_merge
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status=$?
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rmdir -p "$(dirname "$MERGED")" 2>/dev/null
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return $status
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fi
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if is_symlink "$local_mode" || is_symlink "$remote_mode"
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then
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echo "Symbolic link merge conflict for '$MERGED':"
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describe_file "$local_mode" "local" "$LOCAL"
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describe_file "$remote_mode" "remote" "$REMOTE"
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resolve_symlink_merge
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return
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fi
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echo "Normal merge conflict for '$MERGED':"
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describe_file "$local_mode" "local" "$LOCAL"
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describe_file "$remote_mode" "remote" "$REMOTE"
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if test "$guessed_merge_tool" = true || test "$prompt" = true
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then
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printf "Hit return to start merge resolution tool (%s): " "$merge_tool"
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read ans || return 1
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fi
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if base_present
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then
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present=true
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else
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present=false
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fi
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if ! run_merge_tool "$merge_tool" "$present"
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then
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echo "merge of $MERGED failed" 1>&2
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mv -- "$BACKUP" "$MERGED"
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if test "$merge_keep_temporaries" = "false"
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then
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cleanup_temp_files
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fi
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return 1
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fi
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if test "$merge_keep_backup" = "true"
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then
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mv -- "$BACKUP" "$MERGED.orig"
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else
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rm -- "$BACKUP"
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fi
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git add -- "$MERGED"
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cleanup_temp_files
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return 0
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}
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prompt_after_failed_merge () {
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while true
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do
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printf "Continue merging other unresolved paths [y/n]? "
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read ans || return 1
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case "$ans" in
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[yY]*)
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return 0
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;;
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[nN]*)
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return 1
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;;
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esac
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done
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}
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print_noop_and_exit () {
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echo "No files need merging"
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exit 0
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}
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main () {
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prompt=$(git config --bool mergetool.prompt)
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guessed_merge_tool=false
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orderfile=
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while test $# != 0
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do
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case "$1" in
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--tool-help=*)
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TOOL_MODE=${1#--tool-help=}
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show_tool_help
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;;
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--tool-help)
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show_tool_help
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;;
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-t|--tool*)
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case "$#,$1" in
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*,*=*)
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merge_tool=$(expr "z$1" : 'z-[^=]*=\(.*\)')
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;;
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1,*)
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usage ;;
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*)
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merge_tool="$2"
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shift ;;
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esac
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;;
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-y|--no-prompt)
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prompt=false
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;;
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--prompt)
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prompt=true
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;;
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-O*)
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orderfile="${1#-O}"
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;;
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--)
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shift
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break
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;;
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-*)
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usage
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;;
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*)
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break
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;;
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esac
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shift
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done
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git_dir_init
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require_work_tree
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if test -z "$merge_tool"
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then
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# Check if a merge tool has been configured
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merge_tool=$(get_configured_merge_tool)
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# Try to guess an appropriate merge tool if no tool has been set.
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if test -z "$merge_tool"
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then
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merge_tool=$(guess_merge_tool) || exit
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guessed_merge_tool=true
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fi
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fi
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merge_keep_backup="$(git config --bool mergetool.keepBackup || echo true)"
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merge_keep_temporaries="$(git config --bool mergetool.keepTemporaries || echo false)"
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prefix=$(git rev-parse --show-prefix) || exit 1
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cd_to_toplevel
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if test -n "$orderfile"
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then
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orderfile=$(
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git rev-parse --prefix "$prefix" -- "$orderfile" |
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sed -e 1d
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)
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fi
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if test $# -eq 0 && test -e "$GIT_DIR/MERGE_RR"
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then
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set -- $(git rerere remaining)
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if test $# -eq 0
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then
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print_noop_and_exit
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fi
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elif test $# -ge 0
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then
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# rev-parse provides the -- needed for 'set'
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eval "set $(git rev-parse --sq --prefix "$prefix" -- "$@")"
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fi
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files=$(git -c core.quotePath=false \
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diff --name-only --diff-filter=U \
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${orderfile:+"-O$orderfile"} -- "$@")
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if test -z "$files"
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then
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print_noop_and_exit
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fi
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printf "Merging:\n"
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printf "%s\n" "$files"
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rc=0
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set -- $files
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while test $# -ne 0
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do
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printf "\n"
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if ! merge_file "$1"
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then
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rc=1
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test $# -ne 1 && prompt_after_failed_merge || exit 1
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fi
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shift
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done
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exit $rc
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}
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main "$@"
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