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f22fd75c6a
These flags ask diff with a specific unmerged stage, so it should fall back on -p instead. Also when -c is given, we should not do --cc. Signed-off-by: Junio C Hamano <junkio@cox.net>
72 lines
1.5 KiB
Bash
Executable file
72 lines
1.5 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2005 Linus Torvalds
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# Copyright (c) 2005 Junio C Hamano
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USAGE='[ --diff-options ] <ent>{0,2} [<path>...]'
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SUBDIRECTORY_OK='Yes'
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. git-sh-setup
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rev=$(git-rev-parse --revs-only --no-flags --sq "$@") || exit
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flags=$(git-rev-parse --no-revs --flags --sq "$@")
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files=$(git-rev-parse --no-revs --no-flags --sq "$@")
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# I often say 'git diff --cached -p' and get scolded by git-diff-files, but
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# obviously I mean 'git diff --cached -p HEAD' in that case.
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case "$rev" in
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'')
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case " $flags " in
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*" '--cached' "*)
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rev='HEAD '
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;;
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esac
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esac
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# If we have -[123] --ours --theirs --base, don't do --cc by default.
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case " $flags " in
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*" '-"[123]"' "* | *" '--ours' "* | *" '--base' "* | *" '--theirs' "*)
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cc_or_p=-p ;;
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*)
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cc_or_p=--cc ;;
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esac
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# If we do not have --name-status, --name-only, -r, or -c default to --cc.
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case " $flags " in
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*" '--name-status' "* | *" '--name-only' "* | *" '-r' "* | *" '-c' "* )
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;;
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*)
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flags="$flags'$cc_or_p' " ;;
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esac
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# If we do not have -B nor -C, default to -M.
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case " $flags " in
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*" '-"[BCM]* | *" '--find-copies-harder' "*)
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;; # something like -M50.
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*)
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flags="$flags'-M' " ;;
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esac
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case "$rev" in
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?*' '?*' '?*)
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usage
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;;
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?*' '^?*)
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begin=$(expr "$rev" : '.*^.\([0-9a-f]*\).*') &&
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end=$(expr "$rev" : '.\([0-9a-f]*\). .*') || exit
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cmd="git-diff-tree $flags $begin $end -- $files"
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;;
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?*' '?*)
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cmd="git-diff-tree $flags $rev -- $files"
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;;
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?*' ')
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cmd="git-diff-index $flags $rev -- $files"
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;;
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'')
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cmd="git-diff-files $flags -- $files"
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;;
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*)
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usage
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;;
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esac
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eval "$cmd"
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