Add fix_tox_conf function

* If the user calls tox in a test script like so: tox {{ workaround.tox_posargs }}, then a temporary tox configuration will be generated and the appropriate arguments to use it will be injected into tox's command line arguments

include/omc.h

@@ -59,6 +59,9 @@ struct OMC_GLOBAL {
     char *tmpdir; //!< Path to temporary storage directory
     char *conda_install_prefix; //!< Path to install conda
     char *sysconfdir; //!< Path where OMC reads its configuration files (mission directory, etc)
+    struct {
+        char *tox_posargs;
+    } workaround;
     struct Jfrog {
         char *jfrog_artifactory_base_url;
         char *jfrog_artifactory_product;

include/utils.h

@@ -254,4 +254,13 @@ int isempty_dir(const char *path);
  * @return 0 on success, -1 on error
  */
 int xml_pretty_print_in_place(const char *filename, const char *pretty_print_prog, const char *pretty_print_args);
+
+/**
+ * Applies OMC fixups to a tox ini config
+ * @param filename path to tox.ini
+ * @param result path to processed configuration
+ * @return 0 on success, -1 on error
+ */
+int fix_tox_conf(const char *filename, char **result);
+
 #endif //OMC_UTILS_H

src/deliverable.c

@@ -1393,6 +1393,20 @@ void delivery_tests_run(struct Delivery *ctx) {
                 msg(OMC_MSG_L3, "Testing %s\n", ctx->tests[i].name);
                 memset(&proc, 0, sizeof(proc));
 
+                // Apply workaround for tox positional arguments
+                char *toxconf = NULL;
+                if (!access("tox.ini", F_OK)) {
+                    msg(OMC_MSG_L3, "Fixing tox positional arguments\n");
+
+                    fix_tox_conf("tox.ini", &toxconf);
+                    if (!globals.workaround.tox_posargs) {
+                        globals.workaround.tox_posargs = calloc(PATH_MAX, sizeof(*globals.workaround.tox_posargs));
+                    } else {
+                        memset(globals.workaround.tox_posargs, 0, PATH_MAX);
+                    }
+                    snprintf(globals.workaround.tox_posargs, PATH_MAX - 1, "-c %s --root .", toxconf);
+                }
+
                 // enable trace mode before executing each test script
                 memset(cmd, 0, sizeof(cmd));
                 sprintf(cmd, "set -x ; %s", ctx->tests[i].script);
@@ -1410,6 +1424,11 @@ void delivery_tests_run(struct Delivery *ctx) {
                     msg(OMC_MSG_ERROR, "Script failure: %s\n%s\n\nExit code: %d\n", ctx->tests[i].name, ctx->tests[i].script, status);
                     COE_CHECK_ABORT(!globals.continue_on_error, "Test failure")
                 }
+
+                if (toxconf) {
+                    remove(toxconf);
+                    guard_free(toxconf);
+                }
                 popd();
 #else
                 msg(OMC_MSG_WARNING | OMC_MSG_L3, "TESTING DISABLED BY CODE!\n");

src/main.c

@@ -254,6 +254,7 @@ int main(int argc, char *argv[], char *arge[]) {
     tpl_register("system.platform", &ctx.system.platform[DELIVERY_PLATFORM_RELEASE]);
     tpl_register("deploy.jfrog.repo", &globals.jfrog.repo);
     tpl_register("deploy.docker.registry", &ctx.deploy.docker.registry);
+    tpl_register("workaround.tox_posargs", &globals.workaround.tox_posargs);
 
     // Set up PREFIX/etc directory information
     // The user may manipulate the base directory path with OMC_SYSCONFDIR

src/utils.c

@@ -590,4 +590,60 @@ int xml_pretty_print_in_place(const char *filename, const char *pretty_print_pro
         guard_free(tempfile);
         guard_free(result);
         return -1;
-}
+}
+
+int fix_tox_conf(const char *filename, char **result) {
+    struct INIFILE *toxini;
+    FILE *fptemp;
+    char *tempfile;
+    const char *with_posargs = " \\\n    {posargs}\n";
+
+    tempfile = xmkstemp(&fptemp, "w+");
+    if (!tempfile) {
+        return -1;
+    }
+
+    if (!*result) {
+        *result = calloc(PATH_MAX, sizeof(*result));
+        if (!*result) {
+            return -1;
+        }
+    }
+
+    toxini = ini_open(filename);
+    if (!toxini) {
+        if (fptemp) {
+            guard_free(tempfile);
+            fclose(fptemp);
+        }
+        guard_free(*result);
+        return -1;
+    }
+
+    for (size_t i = 0; i < toxini->section_count; i++) {
+        struct INISection *section = toxini->section[i];
+        if (section) {
+            if (startswith(section->key, "testenv")) {
+                for (size_t k = 0; k < section->data_count; k++) {
+                    struct INIData *data = section->data[k];
+                    if (data) {
+                        if (!strcmp(data->key, "commands") && (startswith(data->value, "pytest") && !strstr(data->value, "{posargs}"))) {
+                            strip(data->value);
+                            data->value = realloc(data->value, strlen(data->value) + strlen(with_posargs) + 1);
+                            strcat(data->value, with_posargs);
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    if (ini_write(toxini, &fptemp)) {
+        guard_free(tempfile);
+    }
+    fclose(fptemp);
+
+    *result = tempfile;
+    ini_free(&toxini);
+    return 0;
+}