]> git.ozlabs.org Git - ccan/blobdiff - tools/ccanlint/file_analysis.c
base64: fix for unsigned chars (e.g. ARM).
[ccan] / tools / ccanlint / file_analysis.c
index 9abd62288e6923307f68716d34ea7d7b2a96da04..25e36743c51906206f1d99179b083f26a7084adf 100644 (file)
@@ -1,9 +1,13 @@
+#include "config.h"
 #include "ccanlint.h"
-#include <ccan/talloc/talloc.h>
 #include <ccan/str/str.h>
-#include <ccan/str_talloc/str_talloc.h>
-#include <ccan/grab_file/grab_file.h>
+#include <ccan/take/take.h>
+#include <ccan/hash/hash.h>
+#include <ccan/htable/htable_type.h>
 #include <ccan/noerr/noerr.h>
+#include <ccan/foreach/foreach.h>
+#include <ccan/asort/asort.h>
+#include <ccan/array_size/array_size.h>
 #include "../tools.h"
 #include <unistd.h>
 #include <sys/types.h>
 #include <stdarg.h>
 #include <assert.h>
 
-const char *ccan_dir;
-
-const char *get_ccan_file_contents(struct ccan_file *f)
-{
-       if (!f->contents) {
-               f->contents = grab_file(f, f->fullname, &f->contents_size);
-               if (!f->contents)
-                       err(1, "Reading file %s", f->fullname);
-       }
-       return f->contents;
-}
-
-char **get_ccan_file_lines(struct ccan_file *f)
-{
-       if (!f->lines)
-               f->lines = strsplit(f, get_ccan_file_contents(f),
-                                   "\n", &f->num_lines);
-
-       return f->lines;
-}
-
 struct list_head *get_ccan_file_docs(struct ccan_file *f)
 {
        if (!f->doc_sections) {
                get_ccan_file_lines(f);
-               f->doc_sections = extract_doc_sections(f->lines, f->num_lines);
+               f->doc_sections = extract_doc_sections(f->lines, f->name);
        }
        return f->doc_sections;
 }
 
-struct ccan_file *new_ccan_file(const void *ctx, const char *dir, char *name)
-{
-       struct ccan_file *f;
-
-       assert(dir[0] == '/');
-
-       f = talloc(ctx, struct ccan_file);
-       f->lines = NULL;
-       f->line_info = NULL;
-       f->doc_sections = NULL;
-       f->compiled = NULL;
-       f->name = talloc_steal(f, name);
-       f->fullname = talloc_asprintf(f, "%s/%s", dir, f->name);
-       f->contents = NULL;
-       f->cov_compiled = NULL;
-       return f;
-}
-
-static void add_files(struct manifest *m, const char *dir)
-{
-       DIR *d;
-       struct dirent *ent;
-
-       if (dir[0])
-               d = opendir(dir);
-       else
-               d = opendir(".");
-       if (!d)
-               err(1, "Opening directory %s", dir[0] ? dir : ".");
-
-       while ((ent = readdir(d)) != NULL) {
-               struct stat st;
-               struct ccan_file *f;
-               struct list_head *dest;
-               bool is_c_src;
-
-               if (ent->d_name[0] == '.')
-                       continue;
-
-               f = new_ccan_file(m, m->dir,
-                                 talloc_asprintf(m, "%s%s",
-                                                 dir, ent->d_name));
-               if (lstat(f->name, &st) != 0)
-                       err(1, "lstat %s", f->name);
-
-               if (S_ISDIR(st.st_mode)) {
-                       f->name = talloc_append_string(f->name, "/");
-                       add_files(m, f->name);
-                       continue;
-               }
-               if (!S_ISREG(st.st_mode)) {
-                       talloc_free(f);
-                       continue;
-               }
-
-               if (streq(f->name, "_info")) {
-                       m->info_file = f;
-                       continue;
-               }
-
-               is_c_src = strends(f->name, ".c");
-               if (!is_c_src && !strends(f->name, ".h")) {
-                       dest = &m->other_files;
-                       continue;
-               }
-
-               if (!strchr(f->name, '/')) {
-                       if (is_c_src)
-                               dest = &m->c_files;
-                       else
-                               dest = &m->h_files;
-               } else if (strstarts(f->name, "test/")) {
-                       if (is_c_src) {
-                               if (strstarts(f->name, "test/api"))
-                                       dest = &m->api_tests;
-                               else if (strstarts(f->name, "test/run"))
-                                       dest = &m->run_tests;
-                               else if (strstarts(f->name, "test/compile_ok"))
-                                       dest = &m->compile_ok_tests;
-                               else if (strstarts(f->name, "test/compile_fail"))
-                                       dest = &m->compile_fail_tests;
-                               else
-                                       dest = &m->other_test_c_files;
-                       } else
-                               dest = &m->other_test_files;
-               } else
-                       dest = &m->other_files;
-
-               list_add(dest, &f->list);
-       }
-       closedir(d);
-}
-
-char *report_on_lines(struct list_head *files,
-                     char *(*report)(const char *),
-                     char *sofar)
-{
-       struct ccan_file *f;
-
-       list_for_each(files, f, list) {
-               unsigned int i;
-               char **lines = get_ccan_file_lines(f);
-
-               for (i = 0; i < f->num_lines; i++) {
-                       char *r = report(lines[i]);
-                       if (!r)
-                               continue;
-
-                       sofar = talloc_asprintf_append(sofar,
-                                                      "%s:%u:%s\n",
-                                                      f->name, i+1, r);
-                       talloc_free(r);
-               }
-       }
-       return sofar;
-}
-
-struct manifest *get_manifest(const void *ctx, const char *dir)
-{
-       struct manifest *m = talloc(ctx, struct manifest);
-       char *olddir;
-       unsigned int len;
-
-       m->info_file = NULL;
-       list_head_init(&m->c_files);
-       list_head_init(&m->h_files);
-       list_head_init(&m->api_tests);
-       list_head_init(&m->run_tests);
-       list_head_init(&m->compile_ok_tests);
-       list_head_init(&m->compile_fail_tests);
-       list_head_init(&m->other_test_c_files);
-       list_head_init(&m->other_test_files);
-       list_head_init(&m->other_files);
-       list_head_init(&m->examples);
-       list_head_init(&m->dep_dirs);
-
-       olddir = talloc_getcwd(NULL);
-       if (!olddir)
-               err(1, "Getting current directory");
-
-       if (chdir(dir) != 0)
-               err(1, "Failed to chdir to %s", dir);
-
-       m->dir = talloc_getcwd(m);
-       if (!m->dir)
-               err(1, "Getting current directory");
-
-       len = strlen(m->dir);
-       while (len && m->dir[len-1] == '/')
-               m->dir[--len] = '\0';
-
-       m->basename = strrchr(m->dir, '/');
-       if (!m->basename)
-               errx(1, "I don't expect to be run from the root directory");
-       m->basename++;
-
-       /* We expect the ccan dir to be two levels above module dir. */
-       if (!ccan_dir) {
-               char *p;
-               ccan_dir = talloc_strdup(NULL, m->dir);
-               p = strrchr(ccan_dir, '/');
-               *p = '\0';
-               p = strrchr(ccan_dir, '/');
-               *p = '\0';
-       }
-
-       add_files(m, "");
-
-       if (chdir(olddir) != 0)
-               err(1, "Returning to original directory '%s'", olddir);
-       talloc_free(olddir);
-
-       return m;
-}
-
 
 /**
  * remove_comments - strip comments from a line, return copy.
@@ -228,10 +36,11 @@ struct manifest *get_manifest(const void *ctx, const char *dir)
  * @in_comment: are we already within a comment (from prev line).
  * @unterminated: are we still in a comment for next line.
  */
-static char *remove_comments(const char *line, bool in_comment,
+static char *remove_comments(const tal_t *ctx,
+                            const char *line, bool in_comment,
                             bool *unterminated)
 {
-       char *p, *ret = talloc_array(line, char, strlen(line) + 1);
+       char *p, *ret = tal_arr(ctx, char, strlen(line) + 1);
 
        p = ret;
        for (;;) {
@@ -285,7 +94,7 @@ static char *remove_comments(const char *line, bool in_comment,
 
 static bool is_empty(const char *line)
 {
-       return strspn(line, " \t") == strlen(line);
+       return strspn(line, " \r\t") == strlen(line);
 }
 
 static bool continues(const char *line)
@@ -294,40 +103,6 @@ static bool continues(const char *line)
        return strends(line, "\\");
 }
 
-/* Get token if it's equal to token. */
-bool get_token(const char **line, const char *token)
-{
-       unsigned int toklen;
-
-       *line += strspn(*line, " \t");
-       if (isalnum(token[0]) || token[0] == '_')
-               toklen = strspn(*line, IDENT_CHARS);
-       else {
-               /* FIXME: real tokenizer handles ++ and other multi-chars.  */
-               toklen = strlen(token);
-       }
-
-       if (toklen == strlen(token) && !strncmp(*line, token, toklen)) {
-               *line += toklen;
-               return true;
-       }
-       return false;
-}
-
-char *get_symbol_token(void *ctx, const char **line)
-{
-       unsigned int toklen;
-       char *ret;
-
-       *line += strspn(*line, " \t");
-       toklen = strspn(*line, IDENT_CHARS);
-       if (!toklen)
-               return NULL;
-       ret = talloc_strndup(ctx, *line, toklen);
-       *line += toklen;
-       return ret;
-}
-
 static bool parse_hash_if(struct pp_conditions *cond, const char **line)
 {
        bool brackets, defined;
@@ -342,6 +117,17 @@ static bool parse_hash_if(struct pp_conditions *cond, const char **line)
                return false;
        if (!defined)
                cond->type = PP_COND_IF;
+
+       /* FIXME: We just chain them, ignoring operators. */
+       if (get_token(line, "||") || get_token(line, "&&")) {
+               struct pp_conditions *sub = tal(cond, struct pp_conditions);
+
+               sub->parent = cond->parent;
+               sub->type = PP_COND_IFDEF;
+               if (parse_hash_if(sub, line))
+                       cond->parent = sub;
+       }
+
        return true;
 }
 
@@ -350,10 +136,10 @@ static struct pp_conditions *analyze_directive(struct ccan_file *f,
                                               const char *line,
                                               struct pp_conditions *parent)
 {
-       struct pp_conditions *cond = talloc(f, struct pp_conditions);
+       struct pp_conditions *cond = tal(f, struct pp_conditions);
        bool unused;
 
-       line = remove_comments(line, false, &unused);
+       line = remove_comments(f, line, false, &unused);
 
        cond->parent = parent;
        cond->type = PP_COND_IFDEF;
@@ -400,7 +186,7 @@ static struct pp_conditions *analyze_directive(struct ccan_file *f,
                cond->inverse = !cond->inverse;
                return cond;
        } else if (get_token(&line, "endif")) {
-               talloc_free(cond);
+               tal_free(cond);
                /* Malformed? */
                if (!parent)
                        return NULL;
@@ -408,7 +194,7 @@ static struct pp_conditions *analyze_directive(struct ccan_file *f,
                return parent->parent;
        } else {
                /* Not a conditional. */
-               talloc_free(cond);
+               tal_free(cond);
                return parent;
        }
 
@@ -432,9 +218,10 @@ struct line_info *get_ccan_line_info(struct ccan_file *f)
                return f->line_info;
 
        get_ccan_file_lines(f);
-       f->line_info = talloc_array(f->lines, struct line_info, f->num_lines);
+       f->line_info = tal_arr(f->lines, struct line_info,
+                              tal_count(f->lines)-1);
 
-       for (i = 0; i < f->num_lines; continued = continues(f->lines[i++])) {
+       for (i = 0; f->lines[i]; continued = continues(f->lines[i++])) {
                char *p;
                bool still_doc_line;
 
@@ -446,7 +233,7 @@ struct line_info *get_ccan_line_info(struct ccan_file *f)
                        /* Same as last line. */
                        f->line_info[i].type = f->line_info[i-1].type;
                        /* Update in_comment. */
-                       remove_comments(f->lines[i], in_comment, &in_comment);
+                       remove_comments(f, f->lines[i], in_comment, &in_comment);
                        continue;
                }
 
@@ -461,7 +248,7 @@ struct line_info *get_ccan_line_info(struct ccan_file *f)
                still_doc_line = (in_comment
                                  && f->line_info[i-1].type == DOC_LINE);
 
-               p = remove_comments(f->lines[i], in_comment, &in_comment);
+               p = remove_comments(f, f->lines[i], in_comment, &in_comment);
                if (is_empty(p)) {
                        if (strstarts(f->lines[i], "/**") || still_doc_line)
                                f->line_info[i].type = DOC_LINE;
@@ -469,7 +256,7 @@ struct line_info *get_ccan_line_info(struct ccan_file *f)
                                f->line_info[i].type = COMMENT_LINE;
                } else
                        f->line_info[i].type = CODE_LINE;
-               talloc_free(p);
+               tal_free(p);
        }
        return f->line_info;
 }
@@ -543,7 +330,7 @@ static enum line_compiled get_pp(struct pp_conditions *cond,
 static void add_symbol(struct list_head *head,
                       const char *symbol, const unsigned int *value)
 {
-       struct symbol *sym = talloc(head, struct symbol);
+       struct symbol *sym = tal(head, struct symbol);
        sym->name = symbol;
        sym->value = value;
        list_add(head, &sym->list);
@@ -558,7 +345,7 @@ enum line_compiled get_ccan_line_pp(struct pp_conditions *cond,
        struct list_head *head;
        va_list ap;
 
-       head = talloc(NULL, struct list_head);
+       head = tal(NULL, struct list_head);
        list_head_init(head);
 
        va_start(ap, value);
@@ -569,7 +356,74 @@ enum line_compiled get_ccan_line_pp(struct pp_conditions *cond,
                add_symbol(head, symbol, value);
        }
        ret = get_pp(cond, head);
-       talloc_free(head);
+       tal_free(head);
+       va_end(ap);
        return ret;
 }
 
+static void score_error_vfmt(struct score *score, const char *source,
+                            const char *errorfmt, va_list ap)
+{
+
+       if (!score->error)
+               score->error = tal_strdup(score, "");
+       
+       if (verbose < 2 && strcount(score->error, "\n") > 5) {
+               if (!strends(score->error,
+                            "... more (use -vv to see them all)\n")) {
+                       score->error = tal_strcat(score,
+                                                 take(score->error),
+                                                 "... more (use -vv to see"
+                                                 " them all)\n");
+               }
+               return;
+       }
+
+       tal_append_fmt(&score->error, "%s:", source);
+       tal_append_vfmt(&score->error, errorfmt, ap);
+       score->error = tal_strcat(score, take(score->error), "\n");
+}
+
+
+
+void score_error(struct score *score, const char *source,
+                const char *errorfmt, ...)
+{
+       va_list ap;
+
+       va_start(ap, errorfmt);
+       score_error_vfmt(score, source, errorfmt, ap);
+       va_end(ap);
+}
+
+void score_file_error(struct score *score, struct ccan_file *f, unsigned line,
+                     const char *errorfmt, ...)
+{
+       va_list ap;
+       char *source;
+
+       struct file_error *fe = tal(score, struct file_error);
+       fe->file = f;
+       fe->line = line;
+       list_add_tail(&score->per_file_errors, &fe->list);
+
+       if (line)
+               source = tal_fmt(score, "%s:%u", f->fullname, line);
+       else
+               source = tal_fmt(score, "%s", f->fullname);
+
+       va_start(ap, errorfmt);
+       score_error_vfmt(score, source, errorfmt, ap);
+       va_end(ap);
+}
+
+
+char *get_or_compile_info(const void *ctx UNNEEDED, const char *dir)
+{
+       struct manifest *m = get_manifest(NULL, dir);
+
+       if (!m->info_file->compiled[COMPILE_NORMAL])
+               m->info_file->compiled[COMPILE_NORMAL] = compile_info(m, dir);
+
+       return m->info_file->compiled[COMPILE_NORMAL];
+}