add git_config option

Signed-off-by: Rui Yang <[email protected]>

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`.

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"

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)'; \"")
+}

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"

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