From 5bbd102059c0e4330c455aa07170e58009da62ea Mon Sep 17 00:00:00 2001
From: Sitaram Chamarty <sitaram@atc.tcs.com>
Date: Mon, 31 May 2010 20:39:45 +0530
Subject: [PATCH] (contrib) how to enable or disable push for maintenance

...for some or all repos

(and a minor bug fix in the adc.common-functions file)
---
 contrib/adc/able                 | 46 ++++++++++++++++++++++++++++++++
 contrib/adc/adc.common-functions |  2 +-
 doc/admin-defined-commands.mkd   | 41 +++++++++++++++++++++++++++-
 3 files changed, 87 insertions(+), 2 deletions(-)
 create mode 100755 contrib/adc/able

diff --git a/contrib/adc/able b/contrib/adc/able
new file mode 100755
index 0000000..a776a3a
--- /dev/null
+++ b/contrib/adc/able
@@ -0,0 +1,46 @@
+#!/bin/bash
+
+# WARNING: USES BASH FEATURES...
+
+. $(dirname $0)/adc.common-functions
+
+get_rights_and_owner gitolite-admin
+[[ -z $perm_write ]] && die "just *what* are you trying to pull, young man?"
+
+op=$1
+shift
+
+locs=
+while [[ -n $1 ]]
+do
+    case $1 in
+        '@all' )
+            locs="$locs $HOME"
+            ;;
+        * )
+            [ -d $loc ] && locs="$locs $GL_REPO_BASE_ABS/$1.git"
+            [ -d $loc ] || echo "ignoring $1..."
+            ;;
+    esac
+    shift
+done
+
+case $op in
+    en|enable )
+        for l in $locs
+        do
+            rm -fv $l/.gitolite.down
+        done
+        ;;
+    dis|disable )
+        [[ -t 0 ]] && printf message:
+        read msg <<<$(cat)
+        for l in $locs
+        do
+            echo $msg > $l/.gitolite.down
+        done
+        ;;
+    * )
+        die "argument 1 must be 'en' or 'dis'"
+        ;;
+esac
diff --git a/contrib/adc/adc.common-functions b/contrib/adc/adc.common-functions
index c67710a..2631ed2 100644
--- a/contrib/adc/adc.common-functions
+++ b/contrib/adc/adc.common-functions
@@ -6,7 +6,7 @@ die() { echo "$@"; exit 1; }
 
 get_rights_and_owner() {
     local ans
-    ans=$(perl -I$HOME/.gitolite/src -Mgitolite -e 'cli_repo_rights("'$1'")')
+    ans=$(perl -I$GL_BINDIR -Mgitolite -e 'cli_repo_rights("'$1'")')
 
     # set shell variables as needed
     owner=${ans#* }
diff --git a/doc/admin-defined-commands.mkd b/doc/admin-defined-commands.mkd
index 969f420..b5e6f77 100644
--- a/doc/admin-defined-commands.mkd
+++ b/doc/admin-defined-commands.mkd
@@ -17,7 +17,8 @@ In this document:
   * <a href="#A4">example uses and sample commands in contrib</a>
       * <a href="#A5">fork</a>
       * <a href="#A6">rmrepo</a>
-      * <a href="#A7">(bonus) restricted admin</a>
+      * <a href="#A7">enable/disable push access temporarily</a>
+      * <a href="#A8">(bonus) restricted admin</a>
 
 ----
 
@@ -189,6 +190,44 @@ the user invoking it.
 
 <a name="A7"></a>
 
+#### enable/disable push access temporarily
+
+If you want to disable push access to gitolite temporarily (maybe for
+maintenance), anyone with write access to the gitolite-admin repo can do this:
+
+    ssh git@server able dis @all    # able dis ==> dis able
+
+To re-enable after the maint work is done:
+
+    ssh git@server able en @all     # able en ==> en able
+
+You can also do this for one or more individual repos; in place of `@all`,
+just use a space separated list of reponames (exactly as they would appear in
+the config file).  Wildcards are not supported; patches welcome ;-)
+
+**NOTE: This needs a specific secondary update hook**.  Creating a secondary
+update hook is described in the sections on "custom hooks" and "hook chaining"
+in doc/2.  You need code like this in `update.secondary` (don't forget to
+`chmod +x` the file):
+
+    #!/bin/bash
+
+    for f in $HOME/.gitolite.down $PWD/.gitolite.down
+    do
+        if [ -f $f ]
+        then
+            echo >&2
+            echo '*** ABORT ***' >&2
+            echo >&2
+            cat $f >&2
+            exit 1
+        fi
+    done
+
+    exit 0
+
+<a name="A8"></a>
+
 #### (bonus) restricted admin
 
 It's rather important to me (and presumably others in the "corporate" world)