Micromamba improvement (#148)HEAD1.7.0master

* Update micromamba installation logic

* Split installation from micromamba() into micromamba_install()
* Return -1 when micromamba cannot be installed
* Add stasis.ini option "indexer.micromamba_download_url"
* Add global variable micromamba_download_url
* The installation function attempts two known-good URLs by default
*

* Add indexer arugment '--micromamba-download-url'

* Add is_file_compressed() function to utils
* Call micromamba_install() from tests

* Add space in usage statement

* Fix usage output when option array contains arguments without short options

* Add --micromamba-download-url to README.md

1 files changed, 5 insertions, 0 deletions

diff --git a/src/lib/delivery/delivery_populate.c b/src/lib/delivery/delivery_populate.c
index cfa3da2..5ce11d7 100644
--- a/src/lib/delivery/delivery_populate.c
+++ b/src/lib/delivery/delivery_populate.c
@@ -99,6 +99,11 @@ int populate_delivery_cfg(struct Delivery *ctx, int render_mode) {
     }
 
     err = 0;
+    if (!globals.micromamba_download_url) {
+        globals.micromamba_download_url = ini_getval_str(cfg, "indexer", "micromamba_download_url", render_mode, &err);
+    }
+
+    err = 0;
     if (!globals.wheel_builder_manylinux_image) {
         globals.wheel_builder_manylinux_image = ini_getval_str(cfg, "default", "wheel_builder_manylinux_image", render_mode, &err);
     }