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#!/bin/sh # # Copyright (c) 2005 Junio C Hamano # # Fetch one or more remote refs and merge it/them into the current HEAD. USAGE='[-n | --no-summary] [--no-commit] [-s strategy]... [<fetch-options>] <repo> <head>...' LONG_USAGE='Fetch one or more remote refs and merge it/them into the current HEAD.' SUBDIRECTORY_OK=Yes . git-sh-setup set_reflog_action "pull $*" require_work_tree cd_to_toplevel test -z "$(git ls-files -u)" || die "You are in the middle of a conflicted merge." strategy_args= no_summary= no_commit= squash= 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 ;; --summary) no_summary=$1 ;; --no-c|--no-co|--no-com|--no-comm|--no-commi|--no-commit) no_commit=--no-commit ;; --sq|--squ|--squa|--squas|--squash) squash=--squash ;; -s=*|--s=*|--st=*|--str=*|--stra=*|--strat=*|--strate=*|\ --strateg=*|--strategy=*|\ -s|--s|--st|--str|--stra|--strat|--strate|--strateg|--strategy) case "$#,$1" in *,*=*) strategy=`expr "z$1" : 'z-[^=]*=\(.*\)'` ;; 1,*) usage ;; *) strategy="$2" shift ;; esac strategy_args="${strategy_args}-s $strategy " ;; -h|--h|--he|--hel|--help) usage ;; -*) # Pass thru anything that is meant for fetch. break ;; esac shift done orig_head=$(git-rev-parse --verify HEAD 2>/dev/null) git-fetch --update-head-ok "$@" || exit 1 curr_head=$(git-rev-parse --verify HEAD 2>/dev/null) 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 from" echo >&2 "Warning: commit $orig_head." git-update-index --refresh 2>/dev/null git-read-tree -u -m "$orig_head" "$curr_head" || die 'Cannot fast-forward your working tree. After making sure that you saved anything precious from $ git diff '$orig_head' output, run $ git reset --hard to recover.' fi merge_head=$(sed -e '/ not-for-merge /d' \ -e 's/ .*//' "$GIT_DIR"/FETCH_HEAD | \ tr '\012' ' ') case "$merge_head" in '') curr_branch=$(git-symbolic-ref -q HEAD) case $? in 0) ;; 1) echo >&2 "You are not currently on a branch; you must explicitly" echo >&2 "specify which branch you wish to merge:" echo >&2 " git pull <remote> <branch>" exit 1;; *) exit $?;; esac curr_branch=${curr_branch#refs/heads/} echo >&2 "Warning: No merge candidate found because value of config option \"branch.${curr_branch}.merge\" does not match any remote branch fetched." echo >&2 "No changes." exit 0 ;; ?*' '?*) if test -z "$orig_head" then echo >&2 "Cannot merge multiple branches into empty head" exit 1 fi ;; esac if test -z "$orig_head" then git-update-ref -m "initial pull" HEAD $merge_head "" && git-read-tree --reset -u HEAD || exit 1 exit fi merge_name=$(git-fmt-merge-msg <"$GIT_DIR/FETCH_HEAD") || exit exec git-merge $no_summary $no_commit $squash $strategy_args \ "$merge_name" HEAD $merge_head
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