From 6de7c7ad1b3439a72864153c6a86e3e026fb98dd Mon Sep 17 00:00:00 2001
From: Rui Yang <ruiya@vmware.com>
Date: Fri, 1 Oct 2021 16:23:29 -0400
Subject: [PATCH] add git_config option

Signed-off-by: Rui Yang <ruiya@vmware.com>
---
 README.md        | 8 ++++++++
 assets/check     | 2 ++
 assets/common.sh | 6 ++++++
 assets/in        | 3 +++
 assets/out       | 4 ++++
 5 files changed, 23 insertions(+)

diff --git a/README.md b/README.md
index bfa6d4c..5be0934 100644
--- a/README.md
+++ b/README.md
@@ -68,6 +68,14 @@ filed named `.gitkeep`. Finally, create individual locks by making an empty file
 
 * `password`: *Optional.* Password for HTTP(S) auth when pulling/pushing.
 
+* `git_config`: *Optional.* If specified as (list of pairs `name` and `value`)
+  it will configure git global options, setting each name with each value.
+
+  This can be useful to set options like `credential.helper` or similar.
+
+  See the [`git-config(1)` manual page](https://www.kernel.org/pub/software/scm/git/docs/git-config.html)
+  for more information and documentation of existing git options.
+
 * `retry_delay`: *Optional.* If specified, dictates how long to wait until
   retrying to acquire a lock or release a lock. The default is 10 seconds.
   Valid values: `60s`, `90m`, `1h`.
diff --git a/assets/check b/assets/check
index 911966c..95fb152 100755
--- a/assets/check
+++ b/assets/check
@@ -23,7 +23,9 @@ uri=$(jq -r '.source.uri // ""' < $payload)
 branch=$(jq -r '.source.branch // ""' < $payload)
 pool_name=$(jq -r '.source.pool // ""' < $payload)
 ref=$(jq -r '.version.ref // ""' < $payload)
+git_config_payload=$(jq -r '.source.git_config // []' < $payload)
 
+configure_git_global "${git_config_payload}"
 
 if [ -z "$uri" ]; then
   config_errors="${config_errors}invalid payload (missing uri)\n"
diff --git a/assets/common.sh b/assets/common.sh
index 1bad43d..ff5d059 100644
--- a/assets/common.sh
+++ b/assets/common.sh
@@ -57,3 +57,9 @@ configure_credentials() {
     echo "default login $username password $password" > $HOME/.netrc
   fi
 }
+
+configure_git_global() {
+  local git_config_payload="$1"
+  eval $(echo "$git_config_payload" | \
+    jq -r ".[] | \"git config --global '\\(.name)' '\\(.value)'; \"")
+}
diff --git a/assets/in b/assets/in
index 3abca25..9c20568 100755
--- a/assets/in
+++ b/assets/in
@@ -41,6 +41,9 @@ branch=$(jq -r '.source.branch // ""' < $payload)
 pool_name=$(jq -r '.source.pool // ""' < $payload)
 ref=$(jq -r '.version.ref // "HEAD"' < $payload)
 depth=$(jq -r '(.params.depth // 0)' < $payload)
+git_config_payload=$(jq -r '.source.git_config // []' < $payload)
+
+configure_git_global "${git_config_payload}"
 
 if [ -z "$uri" ]; then
   config_errors="${config_errors}invalid payload (missing uri)\n"
diff --git a/assets/out b/assets/out
index a037700..937de29 100755
--- a/assets/out
+++ b/assets/out
@@ -13,4 +13,8 @@ load_pubkey $payload
 configure_https_tunnel $payload
 configure_credentials $payload
 
+git_config_payload=$(jq -r '.source.git_config // []' < $payload)
+
+configure_git_global "${git_config_payload}"
+
 /opt/go/out $1 >&3 < $payload