47 lines
1.2 KiB
Bash
47 lines
1.2 KiB
Bash
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if [ -e "$NIX_ATTRS_SH_FILE" ]; then . "$NIX_ATTRS_SH_FILE"; elif [ -f .attrs.sh ]; then . .attrs.sh; fi
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source $stdenv/setup
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set -x
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if ! [ -f "$cacheDB" ]; then
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echo "Creating cache DB $cacheDB"
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mtn --db "$cacheDB" db init
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fi
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echo "getting revision $selector";
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done=;
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for source in $dbs; do
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if mtn pull --db "$cacheDB" "$source" "${branch}"; then
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revision="$(mtn --db "$cacheDB" au toposort $(mtn --db "$cacheDB" au select "$selector") | tail -1)";
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if [ -n "$revision" ]; then
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if mtn --db "$cacheDB" au get_revision "$revision"; then
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echo "found revision $revision"
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done=1;
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else
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echo "revision $revision does not exist";
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fi
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else
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echo "selector $selector does not match any revision";
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fi
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else
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echo "pulling branch $branch wasn't successful";
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fi;
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if test -n "$done"; then
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break;
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fi;
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done;
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echo "checking out the revision $revision";
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if test -n "$done"; then
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mtn checkout --db "$cacheDB" -r "$revision" "$out" -b "${branch}"
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else
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echo "Needed revision still not found. Exiting";
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exit 1;
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fi;
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echo "clearing _MTN in the output"
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rm -rf "$out/_MTN"
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