]> git.ozlabs.org Git - ccan/blobdiff - tools/ccanlint/ccanlint.c
jmap: fix aliasing issues, one real testcase bug
[ccan] / tools / ccanlint / ccanlint.c
index 29ad7c6093164ad5f4e25c21c972e55b6a9874d3..ab805806144670e29dc01e05db63c80706c8030c 100644 (file)
@@ -1,6 +1,6 @@
 /*
  * ccanlint: assorted checks and advice for a ccan package
- * Copyright (C) 2008 Rusty Russell
+ * Copyright (C) 2008 Rusty Russell, Idris Soule
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the Free
  * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 #include "ccanlint.h"
+#include "../tools.h"
 #include <unistd.h>
-#include <getopt.h>
+#include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <err.h>
 #include <ctype.h>
+#include <ccan/btree/btree.h>
+#include <ccan/str/str.h>
+#include <ccan/str_talloc/str_talloc.h>
+#include <ccan/talloc/talloc.h>
+#include <ccan/opt/opt.h>
 
-static unsigned int verbose = 0;
-static LIST_HEAD(tests);
-
-static void init_tests(void)
-{
-#include "generated-init-tests" 
-}
-
-static void usage(const char *name)
-{
-       fprintf(stderr, "Usage: %s [-s] [-v] [-d <dirname>]\n"
-               "   -v: verbose mode\n"
-               "   -s: simply give one line per FAIL and total score\n"
-               "   -d: use this directory instead of the current one\n",
-               name);
-       exit(1);
-}
+int verbose = 0;
+static LIST_HEAD(compulsory_tests);
+static LIST_HEAD(normal_tests);
+static LIST_HEAD(finished_tests);
+bool safe_mode = false;
+static struct btree *cmdline_exclude;
+static struct btree *info_exclude;
+static unsigned int timeout;
 
+#if 0
 static void indent_print(const char *string)
 {
        while (*string) {
@@ -55,6 +53,7 @@ static void indent_print(const char *string)
                string += line;
        }
 }
+#endif
 
 bool ask(const char *question)
 {
@@ -67,100 +66,364 @@ bool ask(const char *question)
                && toupper(reply[0]) == 'Y';
 }
 
-static bool run_test(const struct ccanlint *i,
-                    bool summary,
+static const char *should_skip(struct manifest *m, struct ccanlint *i)
+{
+       if (btree_lookup(cmdline_exclude, i->key))
+               return "excluded on command line";
+
+       if (btree_lookup(info_exclude, i->key))
+               return "excluded in _info file";
+       
+       if (i->skip_fail)
+               return "dependency failed";
+
+       if (i->skip)
+               return "dependency was skipped";
+
+       if (i->can_run)
+               return i->can_run(m);
+       return NULL;
+}
+
+static bool run_test(struct ccanlint *i,
+                    bool quiet,
                     unsigned int *score,
                     unsigned int *total_score,
                     struct manifest *m)
 {
        void *result;
-       unsigned int this_score;
+       unsigned int this_score, max_score, timeleft;
+       const struct dependent *d;
+       const char *skip;
+       bool bad, good;
 
-       if (i->total_score)
-               *total_score += i->total_score;
+       //one less test to run through
+       list_for_each(&i->dependencies, d, node)
+               d->dependent->num_depends--;
+
+       skip = should_skip(m, i);
 
-       result = i->check(m);
-       if (!result) {
+       if (skip) {
+       skip:
                if (verbose)
-                       printf("  %s: OK\n", i->name);
-               if (i->total_score)
-                       *score += i->total_score;
+                       printf("  %s: skipped (%s)\n", i->name, skip);
+
+               /* If we're skipping this because a prereq failed, we fail. */
+               if (i->skip_fail)
+                       *total_score += i->total_score;
+                       
+               list_del(&i->list);
+               list_add_tail(&finished_tests, &i->list);
+               list_for_each(&i->dependencies, d, node) {
+                       d->dependent->skip = true;
+                       d->dependent->skip_fail = i->skip_fail;
+               }
                return true;
        }
 
-       if (i->score)
+       timeleft = timeout ? timeout : default_timeout_ms;
+       result = i->check(m, i->keep_results, &timeleft);
+       if (timeout && timeleft == 0) {
+               skip = "timeout";
+               goto skip;
+       }
+
+       max_score = i->total_score;
+       if (!max_score)
+               max_score = 1;
+
+       if (!result)
+               this_score = max_score;
+       else if (i->score)
                this_score = i->score(m, result);
        else
                this_score = 0;
 
-       *score += this_score;
-       if (summary) {
-               printf("%s FAILED (%u/%u)\n",
-                      i->name, this_score, i->total_score);
+       bad = (this_score == 0);
+       good = (this_score >= max_score);
 
-               if (verbose)
-                       indent_print(i->describe(m, result));
-               return false;
+       if (verbose || (!good && !quiet)) {
+               printf("  %s: %s", i->name,
+                      bad ? "FAIL" : good ? "PASS" : "PARTIAL");
+               if (max_score > 1)
+                       printf(" (+%u/%u)", this_score, max_score);
+               printf("\n");
+       }
+
+       if (!quiet && result) {
+               const char *desc;
+               if (i->describe && (desc = i->describe(m, result)) != NULL) 
+                       printf("    %s\n", desc);
+               if (i->handle)
+                       i->handle(m, result);
+       }
+
+       if (i->total_score) {
+               *score += this_score;
+               *total_score += i->total_score;
+       }
+
+       list_del(&i->list);
+       list_add_tail(&finished_tests, &i->list);
+
+       if (bad) {
+               /* Skip any tests which depend on this one. */
+               list_for_each(&i->dependencies, d, node) {
+                       d->dependent->skip = true;
+                       d->dependent->skip_fail = true;
+               }
        }
+       return good;
+}
+
+static void register_test(struct list_head *h, struct ccanlint *test, ...)
+{
+       va_list ap;
+       struct ccanlint *depends;
+       struct dependent *dchild;
 
-       printf("%s\n", i->describe(m, result));
+       list_add(h, &test->list);
 
-       if (i->handle)
-               i->handle(m, result);
+       va_start(ap, test);
+       /* Careful: we might have been initialized by a dependent. */
+       if (test->dependencies.n.next == NULL)
+               list_head_init(&test->dependencies);
 
-       return false;
+       //dependent(s) args (if any), last one is NULL
+       while ((depends = va_arg(ap, struct ccanlint *)) != NULL) {
+               dchild = malloc(sizeof(*dchild));
+               dchild->dependent = test;
+               /* The thing we depend on might not be initialized yet! */
+               if (depends->dependencies.n.next == NULL)
+                       list_head_init(&depends->dependencies);
+               list_add_tail(&depends->dependencies, &dchild->node);
+               test->num_depends++;
+       }
+       va_end(ap);
 }
 
-int main(int argc, char *argv[])
+/**
+ * get_next_test - retrieves the next test to be processed
+ **/
+static inline struct ccanlint *get_next_test(struct list_head *test)
+{
+       struct ccanlint *i;
+
+       if (list_empty(test))
+               return NULL;
+
+       list_for_each(test, i, list) {
+               if (i->num_depends == 0)
+                       return i;
+       }
+       errx(1, "Can't make process; test dependency cycle");
+}
+
+static void init_tests(void)
 {
-       int c;
-       bool summary = false;
-       unsigned int score, total_score;
-       struct manifest *m;
        const struct ccanlint *i;
+       struct btree *keys, *names;
+
+#undef REGISTER_TEST
+#define REGISTER_TEST(name, ...) register_test(&normal_tests, &name, __VA_ARGS__, NULL)
+#include "generated-normal-tests"
+#undef REGISTER_TEST
+#define REGISTER_TEST(name, ...) register_test(&compulsory_tests, &name, __VA_ARGS__, NULL)
+#include "generated-compulsory-tests"
+
+       /* Self-consistency check: make sure no two tests
+          have the same key or name. */
+       keys = btree_new(btree_strcmp);
+       names = btree_new(btree_strcmp);
+       list_for_each(&compulsory_tests, i, list) {
+               if (!btree_insert(keys, i->key))
+                       errx(1, "BUG: Duplicate test key '%s'", i->key);
+               if (!btree_insert(keys, i->name))
+                       errx(1, "BUG: Duplicate test name '%s'", i->name);
+       }
+       list_for_each(&normal_tests, i, list) {
+               if (!btree_insert(keys, i->key))
+                       errx(1, "BUG: Duplicate test key '%s'", i->key);
+               if (!btree_insert(keys, i->name))
+                       errx(1, "BUG: Duplicate test name '%s'", i->name);
+       }
+       btree_delete(keys);
+       btree_delete(names);
+       
+       if (!verbose)
+               return;
 
-       /* I'd love to use long options, but that's not standard. */
-       /* FIXME: getopt_long ccan package? */
-       while ((c = getopt(argc, argv, "sd:v")) != -1) {
-               switch (c) {
-               case 'd':
-                       if (chdir(optarg) != 0)
-                               err(1, "Changing into directory '%s'", optarg);
-                       break;
-               case 's':
-                       summary = true;
-                       break;
-               case 'v':
-                       verbose++;
-                       break;
-               default:
-                       usage(argv[0]);
+       printf("\nCompulsory Tests\n");
+       list_for_each(&compulsory_tests, i, list) {
+               printf("%s depends on %u others\n", i->name, i->num_depends);
+               if (!list_empty(&i->dependencies)) {
+                       const struct dependent *d;
+                       printf("These depend on us:\n");
+                       list_for_each(&i->dependencies, d, node)
+                               printf("\t%s\n", d->dependent->name);
                }
        }
 
-       if (optind < argc)
-               usage(argv[0]);
+       printf("\nNormal Tests\n");
+       list_for_each(&normal_tests, i, list) {
+               printf("%s depends on %u others\n", i->name, i->num_depends);
+               if (!list_empty(&i->dependencies)) {
+                       const struct dependent *d;
+                       printf("These depend on us:\n");
+                       list_for_each(&i->dependencies, d, node)
+                               printf("\t%s\n", d->dependent->name);
+               }
+       }
+}
+
+static struct ccanlint *find_test(const char *key)
+{
+       struct ccanlint *i;
+
+       list_for_each(&compulsory_tests, i, list)
+               if (streq(i->key, key))
+                       return i;
+
+       list_for_each(&normal_tests, i, list)
+               if (streq(i->key, key))
+                       return i;
+
+       return NULL;
+}
+
+static char *keep_test(const char *testname, void *unused)
+{
+       struct ccanlint *i = find_test(testname);
+       if (!i)
+               errx(1, "No test %s to --keep", testname);
+       i->keep_results = true;
+       return NULL;
+}
 
-       m = get_manifest();
+static char *skip_test(const char *testname, void *unused)
+{
+       btree_insert(cmdline_exclude, optarg);
+       return NULL;
+}
+
+static void print_tests(struct list_head *tests, const char *type)
+{
+       struct ccanlint *i;
+
+       printf("%s tests:\n", type);
+       /* This makes them print in topological order. */
+       while ((i = get_next_test(tests)) != NULL) {
+               const struct dependent *d;
+               printf("   %-25s %s\n", i->key, i->name);
+               list_del(&i->list);
+               list_for_each(&i->dependencies, d, node)
+                       d->dependent->num_depends--;
+       }
+}
+
+static char *list_tests(void *arg)
+{
+       print_tests(&compulsory_tests, "Compulsory");
+       print_tests(&normal_tests, "Normal");
+       exit(0);
+}
 
+static char *strip(const void *ctx, const char *line)
+{
+       line += strcspn(line, IDENT_CHARS "-");
+       return talloc_strndup(ctx, line, strspn(line, IDENT_CHARS "-"));
+}
+
+static void add_info_fails(struct ccan_file *info)
+{
+       struct doc_section *d;
+       unsigned int i;
+
+       list_for_each(get_ccan_file_docs(info), d, list) {
+               if (!streq(d->type, "fails"))
+                       continue;
+
+               for (i = 0; i < d->num_lines; i++)
+                       btree_insert(info_exclude, strip(info, d->lines[i]));
+               break;
+       }
+}
+
+int main(int argc, char *argv[])
+{
+       bool summary = false;
+       unsigned int score = 0, total_score = 0;
+       struct manifest *m;
+       struct ccanlint *i;
+       const char *prefix = "";
+       char *dir = talloc_getcwd(NULL), *base_dir = dir;
+       
        init_tests();
 
+       cmdline_exclude = btree_new(btree_strcmp);
+       info_exclude = btree_new(btree_strcmp);
+
+       opt_register_arg("--dir|-d", opt_set_charp, opt_show_charp, &dir,
+                        "use this directory");
+       opt_register_noarg("-n|--safe-mode", opt_set_bool, &safe_mode,
+                        "do not compile anything");
+       opt_register_noarg("-l|--list-tests", list_tests, NULL,
+                        "list tests ccanlint performs (and exit)");
+       opt_register_arg("-k|--keep <testname>", keep_test, NULL, NULL,
+                          "keep results of <testname> (can be used multiple times)");
+       opt_register_noarg("--summary|-s", opt_set_bool, &summary,
+                          "simply give one line summary");
+       opt_register_noarg("--verbose|-v", opt_inc_intval, &verbose,
+                          "verbose mode (can specify more than once)");
+       opt_register_arg("-x|--exclude <testname>", skip_test, NULL, NULL,
+                        "exclude <testname> (can be used multiple times)");
+       opt_register_arg("-t|--timeout <milleseconds>", opt_set_uintval,
+                        NULL, &timeout,
+                        "ignore (terminate) tests that are slower than this");
+       opt_register_noarg("-?|-h|--help", opt_usage_and_exit,
+                          "\nA program for checking and guiding development"
+                          " of CCAN modules.",
+                          "This usage message");
+
+       opt_parse(&argc, argv, opt_log_stderr_exit);
+
+       if (dir[0] != '/')
+               dir = talloc_asprintf_append(NULL, "%s/%s", base_dir, dir);
+       if (dir != base_dir)
+               prefix = talloc_append_string(talloc_basename(NULL, dir), ": ");
+       if (verbose >= 2)
+               compile_verbose = true;
+       if (verbose >= 3)
+               tools_verbose = true;
+
+       /* We move into temporary directory, so gcov dumps its files there. */
+       if (chdir(temp_dir(talloc_autofree_context())) != 0)
+               err(1, "Error changing to %s temporary dir", temp_dir(NULL));
+
+       m = get_manifest(talloc_autofree_context(), dir);
+
+       /* Create a symlink from temp dir back to src dir's test directory. */
+       if (symlink(talloc_asprintf(m, "%s/test", dir),
+                   talloc_asprintf(m, "%s/test", temp_dir(NULL))) != 0)
+               err(1, "Creating test symlink in %s", temp_dir(NULL));
+
        /* If you don't pass the compulsory tests, you don't even get a score */
        if (verbose)
                printf("Compulsory tests:\n");
-       list_for_each(&tests, i, list)
-               if (!i->total_score)
-                       if (!run_test(i, summary, &score, &total_score, m))
-                               exit(1);
+
+       while ((i = get_next_test(&compulsory_tests)) != NULL) {
+               if (!run_test(i, summary, &score, &total_score, m)) {
+                       errx(1, "%s%s failed", prefix, i->name);
+               }
+       }
+
+       add_info_fails(m->info_file);
 
        if (verbose)
                printf("\nNormal tests:\n");
-       score = total_score = 0;
-       list_for_each(&tests, i, list)
-               if (i->total_score)
-                       run_test(i, summary, &score, &total_score, m);
-
-       printf("Total score: %u/%u\n", score, total_score);
+       while ((i = get_next_test(&normal_tests)) != NULL)
+               run_test(i, summary, &score, &total_score, m);
 
+       printf("%sTotal score: %u/%u\n", prefix, score, total_score);
        return 0;
 }