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Finish the support for arg 3: number of parallel grep processes #1

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Finish the support for arg 3: number of parallel grep processes #1

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2db5e26
Complete the support for controlling the number of parallel grep proc…
Gnarfoz Apr 18, 2013
9776031
Fix typo.
Gnarfoz Apr 18, 2013
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13 changes: 7 additions & 6 deletions nginx-cache-purge
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Original file line number Diff line number Diff line change
Expand Up @@ -33,17 +33,17 @@
SCRIPTNAME=${0##*/}

function print_usage() {
echo "$SCRIPTNAME <URI (grep pattern)> <cache directory>."
echo "$SCRIPTNAME <URI (grep pattern)> <cache directory> [number of parallel grep processes]"
}

## Check the number of arguments.
if [ $# -ne 2 ]; then
if [ $# -ne 2 ] && [ $# -ne 3 ]; then
print_usage
exit 1
fi

## Return the files where the items are cached.
## $1 - the filename, can be a pattern .
## $1 - the filename, can be a pattern.
## $2 - the cache directory.
## $3 - (optional) the number of parallel processes to run for grep.
function get_cache_files() {
Expand All @@ -56,13 +56,14 @@ function get_cache_files() {
} # get_cache_files

## Removes an item from the given cache zone.
## $1 - the filename, can be a pattern .
## $1 - the filename, can be a pattern.
## $2 - the cache directory.
## $3 - (optional) the number of parallel processes to run for grep.
function nginx_cache_purge_item() {
local cache_files

[ -d $2 ] || exit 2
cache_files=$(get_cache_files "$1" $2)
cache_files=$(get_cache_files "$1" $2 $3)

## Act based on grep result.
if [ -n "$cache_files" ]; then
Expand All @@ -79,4 +80,4 @@ function nginx_cache_purge_item() {
} # nginx_cache_purge_item

## Try to purge the given item from the cache.
nginx_cache_purge_item $1 $2
nginx_cache_purge_item $1 $2 $3