| #!/bin/sh |
| # |
| # Copyright (c) 2005 Junio C Hamano |
| # |
| # Fetch one or more remote refs and merge it/them into the current HEAD. |
| |
| . git-sh-setup || die "Not a git archive" |
| |
| usage () { |
| die "git pull [-n] [-s strategy]... <repo> <head>..." |
| } |
| |
| strategy_args= no_summary= |
| while case "$#,$1" in 0) break ;; *,-*) ;; *) break ;; esac |
| do |
| case "$1" in |
| -n|--n|--no|--no-|--no-s|--no-su|--no-sum|--no-summ|\ |
| --no-summa|--no-summar|--no-summary) |
| no_summary=-n ;; |
| -s=*|--s=*|--st=*|--str=*|--stra=*|--strat=*|--strate=*|\ |
| --strateg=*|--strategy=*|\ |
| -s|--s|--st|--str|--stra|--strat|--strate|--strateg|--strategy) |
| case "$#,$1" in |
| *,*=*) |
| strategy=`expr "$1" : '-[^=]*=\(.*\)'` ;; |
| 1,*) |
| usage ;; |
| *) |
| strategy="$2" |
| shift ;; |
| esac |
| strategy_args="${strategy_args}-s $strategy " |
| ;; |
| -*) |
| # Pass thru anything that is meant for fetch. |
| break |
| ;; |
| esac |
| shift |
| done |
| |
| orig_head=$(git-rev-parse --verify HEAD) || die "Pulling into a black hole?" |
| git-fetch --update-head-ok "$@" || exit 1 |
| |
| curr_head=$(git-rev-parse --verify HEAD) |
| if test "$curr_head" != "$orig_head" |
| then |
| # The fetch involved updating the current branch. |
| |
| # The working tree and the index file is still based on the |
| # $orig_head commit, but we are merging into $curr_head. |
| # First update the working tree to match $curr_head. |
| |
| echo >&2 "Warning: fetch updated the current branch head." |
| echo >&2 "Warning: fast forwarding your working tree." |
| git-read-tree -u -m "$orig_head" "$curr_head" || |
| die "You need to first update your working tree." |
| fi |
| |
| merge_head=$(sed -e '/ not-for-merge /d' \ |
| -e 's/ .*//' "$GIT_DIR"/FETCH_HEAD | \ |
| tr '\012' ' ') |
| |
| case "$merge_head" in |
| '') |
| echo >&2 "No changes." |
| exit 0 |
| ;; |
| ?*' '?*) |
| strategy_default_args='-s octopus' |
| ;; |
| *) |
| strategy_default_args='-s resolve' |
| ;; |
| esac |
| |
| case "$strategy_args" in |
| '') |
| strategy_args=$strategy_default_args |
| ;; |
| esac |
| |
| merge_name=$(git-fmt-merge-msg <"$GIT_DIR/FETCH_HEAD") |
| git-merge $no_summary $strategy_args "$merge_name" HEAD $merge_head |
