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https://github.com/git/git
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822f7c7349
A lot of shell scripts contained stuff starting with while case "$#" in 0) break ;; esac and similar. I consider breaking out of the condition instead of the body od the loop ugly, and the implied "true" value of the non-matching case is not really obvious to humans at first glance. It happens not to be obvious to some BSD shells, either, but that's because they are not POSIX-compliant. In most cases, this has been replaced by a straight condition using "test". "case" has the advantage of being faster than "test" on vintage shells where "test" is not a builtin. Since none of them is likely to run the git scripts, anyway, the added readability should be worth the change. A few loops have had their termination condition expressed differently. Signed-off-by: David Kastrup <dak@gnu.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
107 lines
2.3 KiB
Bash
Executable file
107 lines
2.3 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2005, 2006 Linus Torvalds and Junio C Hamano
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#
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USAGE='[--mixed | --soft | --hard] [<commit-ish>] [ [--] <paths>...]'
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SUBDIRECTORY_OK=Yes
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. git-sh-setup
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set_reflog_action "reset $*"
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require_work_tree
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update= reset_type=--mixed
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unset rev
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while test $# != 0
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do
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case "$1" in
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--mixed | --soft | --hard)
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reset_type="$1"
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;;
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--)
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break
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;;
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-*)
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usage
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;;
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*)
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rev=$(git rev-parse --verify "$1") || exit
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shift
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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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: ${rev=HEAD}
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rev=$(git rev-parse --verify $rev^0) || exit
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# Skip -- in "git reset HEAD -- foo" and "git reset -- foo".
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case "$1" in --) shift ;; esac
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# git reset --mixed tree [--] paths... can be used to
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# load chosen paths from the tree into the index without
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# affecting the working tree nor HEAD.
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if test $# != 0
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then
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test "$reset_type" = "--mixed" ||
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die "Cannot do partial $reset_type reset."
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git diff-index --cached $rev -- "$@" |
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sed -e 's/^:\([0-7][0-7]*\) [0-7][0-7]* \([0-9a-f][0-9a-f]*\) [0-9a-f][0-9a-f]* [A-Z] \(.*\)$/\1 \2 \3/' |
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git update-index --add --remove --index-info || exit
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git update-index --refresh
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exit
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fi
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cd_to_toplevel
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if test "$reset_type" = "--hard"
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then
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update=-u
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fi
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# Soft reset does not touch the index file nor the working tree
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# at all, but requires them in a good order. Other resets reset
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# the index file to the tree object we are switching to.
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if test "$reset_type" = "--soft"
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then
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if test -f "$GIT_DIR/MERGE_HEAD" ||
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test "" != "$(git ls-files --unmerged)"
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then
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die "Cannot do a soft reset in the middle of a merge."
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fi
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else
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git read-tree -v --reset $update "$rev" || exit
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fi
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# Any resets update HEAD to the head being switched to.
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if orig=$(git rev-parse --verify HEAD 2>/dev/null)
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then
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echo "$orig" >"$GIT_DIR/ORIG_HEAD"
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else
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rm -f "$GIT_DIR/ORIG_HEAD"
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fi
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git update-ref -m "$GIT_REFLOG_ACTION" HEAD "$rev"
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update_ref_status=$?
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case "$reset_type" in
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--hard )
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test $update_ref_status = 0 && {
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printf "HEAD is now at "
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GIT_PAGER= git log --max-count=1 --pretty=oneline \
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--abbrev-commit HEAD
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}
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;;
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--soft )
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;; # Nothing else to do
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--mixed )
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# Report what has not been updated.
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git update-index --refresh
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;;
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esac
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rm -f "$GIT_DIR/MERGE_HEAD" "$GIT_DIR/rr-cache/MERGE_RR" \
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"$GIT_DIR/SQUASH_MSG" "$GIT_DIR/MERGE_MSG"
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exit $update_ref_status
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