The "usage" text should explain it all. I found, in my quilt series
handling endeavours, that I wanted to be able to shift the prefix
numbers of a patch series.
v2: Use heredoc for usage string, fix second example, use mv -i (Jani)
v3: Don't use a fancy read for usage() (Jani)
Collect the files to rename in a first pass, or the renaming process
can interfere with listing the next files to rename
v4: Require bash (Jani)
Looks-good-to: Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx>
Signed-off-by: Damien Lespiau <damien.lespiau@xxxxxxxxx>
---
frob-patch-rank | 59 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 59 insertions(+)
create mode 100755 frob-patch-rank
diff --git a/frob-patch-rank b/frob-patch-rank
new file mode 100755
index 0000000..0239c76
--- /dev/null
+++ b/frob-patch-rank
@@ -0,0 +1,59 @@
+#!/bin/bash
+set -e
+
+script=$(basename $0)
+
+function usage() {
+ cat << EOU
+Usage: $script start end expr
+
+ Frob patches.
+
+ This tiny script renames "git format-patch" patches by executing 'expr'
+ on the number that prefix the patch file, but only if the patch file name
+ starts with a number in ['start','end'].
+
+Examples:
+ $ ls *patch
+ 0008-Super-patch.patch
+ 0009-Mega-patch.patch
+ $ $script 8 9 -7
+ $ ls *patch
+ 0001-Super-patch.patch
+ 0002-Mega-patch.patch
+
+ $ ls *patch
+ 0117-Super-patch.patch
+ 0118-Mega-patch.patch
+ $ $script 117 118 +900 -17
+ $ ls *patch
+ 1000-Super-patch.patch
+ 1001-Mega-patch.patch
+EOU
+}
+
+[ $# -ge 3 ] || {
+ usage
+ exit 1
+}
+
+start=$1
+end=$2
+shift 2
+op=$*
+
+for i in $(seq $start $end); do
+ prefix=$(printf "%04d" $i)
+ files="$files $(ls $prefix-*.patch)"
+done
+
+for f in $files; do
+ prefix=${f:0:4}
+ base=${f#$prefix-}
+
+ rank=$((10#$prefix)) # don't interpret the leading 0 as base 8
+ ((n=$rank $op))
+
+ new_prefix=$(printf "%04d" $n)
+ mv $prefix-$base $new_prefix-$base
+done
--
1.8.3.1
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