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143 lines
3.1 KiB
143 lines
3.1 KiB
#!/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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. git-sh-setup || die "Not a git archive" |
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usage () { |
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die "git pull [-n] [-s strategy]... <repo> <head>..." |
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} |
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strategy_args= no_summary= |
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while case "$#,$1" in 0) break ;; *,-*) ;; *) break ;; esac |
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do |
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case "$1" in |
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-n|--n|--no|--no-|--no-s|--no-su|--no-sum|--no-summ|\ |
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--no-summa|--no-summar|--no-summary) |
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no_summary=-n ;; |
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-s=*|--s=*|--st=*|--str=*|--stra=*|--strat=*|--strate=*|\ |
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--strateg=*|--strategy=*|\ |
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-s|--s|--st|--str|--stra|--strat|--strate|--strateg|--strategy) |
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case "$#,$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 $strategy " |
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;; |
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-*) |
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usage |
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;; |
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esac |
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shift |
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done |
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orig_head=$(cat "$GIT_DIR/HEAD") || die "Pulling into a black hole?" |
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git-fetch --update-head-ok "$@" || exit 1 |
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curr_head=$(cat "$GIT_DIR/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 's/ .*//' "$GIT_DIR"/FETCH_HEAD | tr '\012' ' ') |
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case "$merge_head" in |
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?*' '?*) |
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merge_name="Octopus merge of "$( |
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perl -e ' |
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my @src; |
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my %src; |
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sub andjoin { |
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my ($label, $labels, $stuff, $src) = @_; |
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my $l = scalar @$stuff; |
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my $m = ""; |
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if ($l == 0) { |
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return ""; |
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} |
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if ($l == 1) { |
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$m = "$label $stuff->[0]"; |
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} |
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else { |
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$m = ("$labels " . |
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join (", ", @{$stuff}[0..$l-2]) . |
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" and $stuff->[-1]"); |
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} |
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if ($src ne ".") { |
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$m .= " from $src"; |
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} |
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return $m; |
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} |
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while (<>) { |
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my ($bname, $tname, $gname, $src); |
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s/^[0-9a-f]* //; |
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if (s/ of (.*)$//) { |
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$src = $1; |
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} else { |
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$src = "."; |
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} |
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if (! exists $src{$src}) { |
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push @src, $src; |
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$src{$src} = { BRANCH => [], TAG => [], GENERIC => [] }; |
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} |
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if (/^branch (.*)$/) { |
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push @{$src{$src}{BRANCH}}, $1; |
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} |
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elsif (/^tag (.*)$/) { |
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push @{$src{$src}{TAG}}, $1; |
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} |
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else { |
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push @{$src{$src}{GENERIC}}, $1; |
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} |
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} |
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my @msg; |
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for my $src (@src) { |
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my $bag = $src{$src}{BRANCH}; |
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if (@{$bag}) { |
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push @msg, andjoin("branch", "branches", $bag, $src); |
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} |
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$bag = $src{$src}{TAG}; |
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if (@{$bag}) { |
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push @msg, andjoin("tag", "tags", $bag, $src); |
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} |
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$bag = $src{$src}{GENERIC}; |
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if (@{$bag}) { |
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push @msg, andjoin("commit", "commits", $bag, $src); |
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} |
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} |
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print join("; ", @msg); |
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' "$GIT_DIR"/FETCH_HEAD |
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) |
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;; |
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*) |
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merge_name="Merge "$(sed -e 's/^[0-9a-f]* //' \ |
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"$GIT_DIR"/FETCH_HEAD) |
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;; |
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esac |
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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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esac |
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git-merge $no_summary $strategy_args "$merge_name" HEAD $merge_head
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