After “triggering a custom build” I receive an error “cd reposter - dir not found” despite not having this command in specified config (at least not at that stage).
Choose one of the following merge modes to determine how the original build configuration (in the .travis.yml file), and the configuration specified in your API request are combined:
replace replaces the full, original build configuration with the configuration in the API request body
merge ( default ) replaces sections in the original configuration with the configuration in the API request body
deep_merge merges the configuration in the API request body into the build configuration
As can be seen from the following example, merge mode is specified with merge_mode: at top level of the custom config.