Attempt conda environment removal only when its present on-diskworkaround-shebang-nightmare

3 files changed, 10 insertions, 2 deletions

diff --git a/include/conda.h b/include/conda.h
index f031479..b8d0caa 100644
--- a/include/conda.h
+++ b/include/conda.h
@@ -229,4 +229,6 @@ const char *pkg_index_provides_strerror(int code);
 
 char *conda_get_active_environment();
 
+int conda_env_exists(const char *root, const char *name);
+
 #endif //STASIS_CONDA_H
diff --git a/src/cli/stasis/stasis_main.c b/src/cli/stasis/stasis_main.c
index 2a2ed3b..093e32e 100644
--- a/src/cli/stasis/stasis_main.c
+++ b/src/cli/stasis/stasis_main.c
@@ -310,7 +310,7 @@ int main(int argc, char *argv[]) {
     }
 
     if (!isempty(ctx.meta.based_on)) {
-        if (conda_env_remove(env_name)) {
+        if (conda_env_exists(ctx.storage.conda_install_prefix, env_name) && conda_env_remove(env_name)) {
             msg(STASIS_MSG_ERROR | STASIS_MSG_L2, "failed to remove release environment: %s\n", env_name);
             exit(1);
         }
@@ -321,7 +321,7 @@ int main(int argc, char *argv[]) {
             exit(1);
         }
 
-        if (conda_env_remove(env_name_testing)) {
+        if (conda_env_exists(ctx.storage.conda_install_prefix, env_name_testing) && conda_env_remove(env_name_testing)) {
             msg(STASIS_MSG_ERROR | STASIS_MSG_L2, "failed to remove testing environment %s\n", env_name_testing);
             exit(1);
         }
diff --git a/src/lib/core/conda.c b/src/lib/core/conda.c
index c98be1c..b2caa63f 100644
--- a/src/lib/core/conda.c
+++ b/src/lib/core/conda.c
@@ -542,3 +542,9 @@ int conda_index(const char *path) {
     sprintf(command, "index %s", path);
     return conda_exec(command);
 }
+
+int conda_env_exists(const char *root, const char *name) {
+    char path[PATH_MAX] = {0};
+    snprintf(path, sizeof(path) - 1 - 6, "%s/envs/%s", root, name);
+    return access(path, F_OK) == 0;
+}