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