Move micromamba function out of stasis_indexer.c

* Adjust code in the indexer to accommodate the move. The function now expects a MicromambaInfo structure as its first argument.

1 files changed, 55 insertions, 0 deletions

diff --git a/src/conda.c b/src/conda.c
index 342b6af..90a8587 100644
--- a/src/conda.c
+++ b/src/conda.c
@@ -5,6 +5,61 @@
 #include <unistd.h>
 #include "conda.h"
 
+int micromamba(struct MicromambaInfo *info, char *command, ...) {
+    struct utsname sys;
+    uname(&sys);
+
+    tolower_s(sys.sysname);
+    if (!strcmp(sys.sysname, "darwin")) {
+        strcpy(sys.sysname, "osx");
+    }
+
+    if (!strcmp(sys.machine, "x86_64")) {
+        strcpy(sys.machine, "64");
+    }
+
+    char url[PATH_MAX];
+    sprintf(url, "https://micro.mamba.pm/api/micromamba/%s-%s/latest", sys.sysname, sys.machine);
+
+    char installer_path[PATH_MAX];
+    sprintf(installer_path, "%s/latest", getenv("TMPDIR") ? getenv("TMPDIR") : "/tmp");
+
+    if (access(installer_path, F_OK)) {
+        download(url, installer_path, NULL);
+    }
+
+    char mmbin[PATH_MAX];
+    sprintf(mmbin, "%s/micromamba", info->micromamba_prefix);
+
+    if (access(mmbin, F_OK)) {
+        char untarcmd[PATH_MAX];
+        mkdirs(info->micromamba_prefix, 0755);
+        sprintf(untarcmd, "tar -xvf %s -C %s --strip-components=1 bin/micromamba 1>/dev/null", installer_path, info->micromamba_prefix);
+        system(untarcmd);
+    }
+
+    char cmd[STASIS_BUFSIZ];
+    memset(cmd, 0, sizeof(cmd));
+    sprintf(cmd, "%s -r %s -p %s ", mmbin, info->conda_prefix, info->conda_prefix);
+    va_list args;
+    va_start(args, command);
+    vsprintf(cmd + strlen(cmd), command, args);
+    va_end(args);
+
+    mkdirs(info->conda_prefix, 0755);
+
+    char rcpath[PATH_MAX];
+    sprintf(rcpath, "%s/.condarc", info->conda_prefix);
+    touch(rcpath);
+
+    setenv("CONDARC", rcpath, 1);
+    setenv("MAMBA_ROOT_PREFIX", info->conda_prefix, 1);
+    int status = system(cmd);
+    unsetenv("MAMBA_ROOT_PREFIX");
+
+    return status;
+}
+
 int python_exec(const char *args) {
     char command[PATH_MAX];
     memset(command, 0, sizeof(command));