[gentoo-commits] proj/R_overlay:master commit in: files/shlib/

["André Erdmann" <dywi@mailerd.de>]

commit:     20fefd213dead9ec0d760b0473288d3ed5d34d4e
Author:     André Erdmann <dywi <AT> mailerd <DOT> de>
AuthorDate: Wed Sep  4 12:47:26 2013 +0000
Commit:     André Erdmann <dywi <AT> mailerd <DOT> de>
CommitDate: Wed Sep  4 12:47:26 2013 +0000
URL:        http://git.overlays.gentoo.org/gitweb/?p=proj/R_overlay.git;a=commit;h=20fefd21

files/shlib/git: git_update_config()

---
 files/shlib/git.sh | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/files/shlib/git.sh b/files/shlib/git.sh
index e68b74e..3a143d3 100644
--- a/files/shlib/git.sh
+++ b/files/shlib/git.sh
@@ -8,7 +8,9 @@
 #
 # --- functions provided by this file ---
 #
-# int git_has_changes ( [*files] ), raises die()
+# int  git_has_changes ( [*files] ), raises die()
+# void git_update_config ( config_key, [user_value], [fallback_value] ),
+#  raises die()
 #
 #
 # --- variables provided by this file ---
@@ -74,4 +76,22 @@ git_has_changes() {
    return ${has_changes}
 }
 
+# void git_update_config (
+#    config_key, [user_value], [fallback_value]
+# ), raises die()
+#
+# Sets config_key to user_value (if defined), else sets it to fallback_value
+# if config_key's value is empty/does not exist.
+#
+#
+git_update_config() {
+   if [ -n "${2-}" ]; then
+      autodie ${GIT} config "${1}" "${2}"
+   elif [ -z "${3-}" ] || ${GIT} config --get "${1}" | grep -q .; then
+      true
+   else
+      autodie ${GIT} config "${1}" "${3?}"
+   fi
+}
+
 fi # __HAVE_GIT_FUNCTIONS__