[rkward-cvs] [rkward] scripts: Add helper script for importing plugins from our external_plugins repo (with history)

[Thomas Friedrichsmeier]

Git commit 102476808454ecb22d39beeaab14cd82095d5650 by Thomas Friedrichsmeier.
Committed on 11/01/2015 at 20:10.
Pushed by tfry into branch 'master'.

Add helper script for importing plugins from our external_plugins repo (with history)

A  +50   -0    scripts/import_external_plugin.sh

http://commits.kde.org/rkward/102476808454ecb22d39beeaab14cd82095d5650

diff --git a/scripts/import_external_plugin.sh b/scripts/import_external_plugin.sh
new file mode 100755
index 0000000..e33166e
--- /dev/null
+++ b/scripts/import_external_plugin.sh
@@ -0,0 +1,50 @@
+#!/bin/bash
+#
+# Import a plugin from our external plugins repository, keeping all commit history.
+# Actually, imports single specified file or path from that repo. Just pick the
+# generator script, and you should be fine (no need to preserve history on generated files).
+#
+# Note:
+# Based on http://gbayer.com/development/moving-files-from-one-git-repository-to-another-preserving-history/
+# with some additional tweaking
+#
+# Usage:
+# import_external_plugin.sh source_path target_dir
+# Example:
+# import_external_plugin.sh rk.power/inst/rkward/rkwarddev_power_plugin_script.R rkward/plugins/rkwarddev_scripts
+
+EXTERNAL_REPO=https://github.com/rkward-community/external-plugins.git
+SOURCE_PATH=$1
+TARGET_PATH=$2
+
+cd `dirname $0`/..
+BASEDIR=`pwd`
+cd ${BASEDIR}
+WORKDIR=${BASEDIR}/import_tmp
+
+# clone and filter external repo
+git clone ${EXTERNAL_REPO} import_tmp
+cd ${WORKDIR}
+git remote rm origin # safety measure
+# first split out the target into a single dir. For simplicity, we use ${TARGET_PATH}, here
+git filter-branch --prune-empty --tree-filter "
+if [ -e ${SOURCE_PATH} ]; then
+  mkdir -p ${TARGET_PATH}
+  mv ${SOURCE_PATH} ${TARGET_PATH}
+fi"
+# next filter that single dir
+git filter-branch -f --subdirectory-filter ${TARGET_PATH} -- --all
+mkdir -p ${TARGET_PATH}
+mv * ${TARGET_PATH}
+git add .
+git commit -m "Import ${SOURCE_PATH} from external_plugins repository"
+
+# merge into main repo
+cd ${BASEDIR}
+git remote add external_repo_import ${WORKDIR}
+git pull --no-rebase external_repo_import master
+git remote rm external_repo_import
+
+# Done
+rm -rf ${WORKDIR}
+git status