From b30a2be0105bae41479e518711364a4ae21fbcbd Mon Sep 17 00:00:00 2001
From: Andrew Cady <d@jerkface.net>
Date: Wed, 29 Mar 2017 22:50:05 -0400
Subject: split btrfs-shrink out of btarfs

---
 src/btarfs | 105 -------------------------------------------------------------
 1 file changed, 105 deletions(-)
 delete mode 100755 src/btarfs

(limited to 'src/btarfs')

diff --git a/src/btarfs b/src/btarfs
deleted file mode 100755
index a51b2ef..0000000
--- a/src/btarfs
+++ /dev/null
@@ -1,105 +0,0 @@
-#!/bin/sh
-
-die() { printf "%s: Error: %s\n" "$0" "$*" >&2; exit 1; }
-
-[ "$(id -u)" = 0 ] || die 'you are not root'
-
-TEMP="$(getopt -o 'f:vcxz' --long size:,file:,create,extract,gzip,gunzip,ungzip -n "$0" -- "$@")" ||
-    die 'getopt error'
-eval set -- "$TEMP"
-
-MIN_BYTES=$((128 * 1024 * 1024))
-
-FILE=
-MODE=
-ZIP=y
-BYTES=$((256 * 1024 * 1024))
-while [ $# -gt 0 ]; do
-    case "$1" in
-        --size)
-            BYTES=$(( $2 * 1024 * 1024))
-            [ "$BYTES" -ge "$MIN_BYTES" ] || die "invalid size (too small or not a number)"
-            SIZE="$2"
-            shift 2 ;;
-        -f|--file)
-            [ "$FILE" ] && die "only one archive file can be specified"
-            FILE="$2"
-            shift 2 ;;
-        -c|--create)
-            [ "$MODE" ] && die "incompatible modes"
-            MODE=create
-            shift ;;
-        -x|--extract)
-            [ "$MODE" ] && die "incompatible modes"
-            MODE=extract
-            shift ;;
-        -v)
-            VERBOSE=y
-            shift ;;
-        -z|--gzip|--gunzip|--ungzip)
-            ZIP=y
-            shift ;;
-        --)
-            shift; break;;
-        *) die 'getopt error';;
-    esac
-done
-[ "$FILE" ] || die "you must specify a file (this is not tar, there is no stdout)"
-
-create()
-{
-    TMPFILE=$(dirname "$FILE")/.~.$(basename "$FILE")
-#   [ ! -e "$FILE" ] || die "refusing to overwrite '$FILE'"
-#   [ ! -e "$TMPFILE" ] || die "refusing to overwrite '.~.$FILE'"
-    rm -f "$TMPFILE"
-    fallocate -l "$BYTES" "$TMPFILE"
-    mountpoint=$(mktemp -d) || die
-    trap 'umount "$mountpoint"; rmdir "$mountpoint"; rm "$TMPFILE"' EXIT
-    mkfs.btrfs "$TMPFILE" || die
-    mount -o ${ZIP:+compress,}loop "$TMPFILE" "$mountpoint" || die
-    rsync -a ${VERBOSE:+ -i} "$@" "$mountpoint" || die
-
-    shrink "$mountpoint"
-    umount "$mountpoint" || die
-    btrfs_truncate "$TMPFILE"
-
-    rmdir "$mountpoint"
-    btrfstune -S1 "$TMPFILE" || die
-    mv "$TMPFILE" "$FILE"
-    trap '' EXIT
-}
-
-btrfs_truncate()
-{
-    local img="$1" bytes
-    bytes=$(file "$img" | sed -ne 's?.*/\([0-9]*\) bytes used.*?\1?p')
-    if [ "$bytes" ]; then
-        truncate -s "$bytes" "$img"
-    fi
-}
-
-
-get_k()
-{
-    local mountpoint="$1" kilos
-    kilos=$(btrfs fi usage -k "$mountpoint"|sed -ne 's/[\t ]*Device size:[\t ]*//p')
-    case "$kilos" in
-        *.00KiB) echo "${kilos%.00KiB}";;
-        *) return 1;;
-    esac
-}
-
-shrink()
-{
-    shrinkmegs=100
-    while true; do
-        while ! btrfs filesystem resize -${shrinkmegs}M "$mountpoint"/; do
-            shrinkmegs=$((shrinkmegs - 10 ))
-            if [ $shrinkmegs -lt 10 ]; then
-                return
-            fi
-        done
-    done
-}
-
-$MODE "$@"
-- 
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