Add cache-file post.

diff --git a/posts/cache-file.mdwn b/posts/cache-file.mdwn
new file mode 100644 (file)
index 0000000..c2c1ecf
--- /dev/null
+++ b/posts/cache-file.mdwn
@@ -0,0 +1,19 @@
+[[cache-file.sh]] is a [[bash]] script to make it easy to sort
+pictures using [pqiv][].  If you place `cache-file.sh` in your path,
+and add
+
+    -1 "cache-file.sh saves"
+    -2 "cache-file.sh trash"
+
+to `~/.pqivrc`, you can move the current picture to `.cache-saves/` or
+`.cache-trash/` by pressing 1 or 2 respectively.  The `.cache-*/`
+directory is in the same directory as the image file, and will be
+created if it doesn't exist.
+
+Not very complicated, but useful for quickly removing
+almost-duplicates, blurry pictures, etc.
+
+[pqiv]: http://www.pberndt.com/Programme/Linux/pqiv
+
+[[!tag tags/bash]]
+[[!tag tags/programming]]

diff --git a/posts/cache-file/cache-file.sh b/posts/cache-file/cache-file.sh
new file mode 100755 (executable)
index 0000000..0f3f310
--- /dev/null
+++ b/posts/cache-file/cache-file.sh
@@ -0,0 +1,50 @@
+#!/bin/bash
+#
+# Something along the lines of qiv's .qiv-save and .qiv-trash for pqiv.
+#
+# Copyright (C) 2010 W. Trevor King <wking@drexel.edu>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+#
+# usage: cache-file.sh TAG FILE
+
+PREFIX=".cache-"
+TAG="$1"
+FILE="$2"
+
+if [ ! -e "$FILE" ]; then
+       echo "'$FILE' doesn't exist" >&2
+       exit 1
+fi
+FILE_DIR=$(dirname $FILE)
+if [ ! -d "$FILE_DIR" ]; then
+       echo "'$FILE' not in a directory" >&2
+       exit 1
+fi
+
+CACHE_DIR="$FILE_DIR/$PREFIX$TAG"
+
+if [ ! -d "$CACHE_DIR" ]; then
+       if [ -e "$CACHE_DIR" ]; then
+               echo "'$CACHE_DIR' exists, but is not a directory"
+               exit 1
+       fi
+       mkdir "$CACHE_DIR"
+fi
+
+mv "$FILE" "$CACHE_DIR"
+
+echo "moved '$FILE' to '$CACHE_DIR'"