X-Git-Url: https://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=tools%2Fccanlint%2Ffile_analysis.c;h=b83e877e0455f6c3006537c90ea023e0034b2aaf;hp=2a66a545846e37e119ffc5921395f3309a0f049f;hb=9c41898c663ff54037aceb07104a3024bde70257;hpb=570c9c555f076e74f46141bb42b5d1d7ac89f632

diff --git a/tools/ccanlint/file_analysis.c b/tools/ccanlint/file_analysis.c
index 2a66a545..b83e877e 100644
--- a/tools/ccanlint/file_analysis.c
+++ b/tools/ccanlint/file_analysis.c
@@ -14,11 +14,25 @@
 #include <dirent.h>
 #include <ctype.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, f->contents, "\n", &f->num_lines);
+		f->lines = strsplit(f, get_ccan_file_contents(f),
+				    "\n", &f->num_lines);
 
 	return f->lines;
 }
@@ -32,6 +46,24 @@ struct list_head *get_ccan_file_docs(struct ccan_file *f)
 	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;
@@ -53,11 +85,9 @@ static void add_files(struct manifest *m, const char *dir)
 		if (ent->d_name[0] == '.')
 			continue;
 
-		f = talloc(m, struct ccan_file);
-		f->lines = NULL;
-		f->line_info = NULL;
-		f->doc_sections = NULL;
-		f->name = talloc_asprintf(f, "%s%s", dir, ent->d_name);
+		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);
 
@@ -73,23 +103,15 @@ static void add_files(struct manifest *m, const char *dir)
 
 		if (streq(f->name, "_info")) {
 			m->info_file = f;
-			f->contents = grab_file(f, f->name, &f->contents_size);
-			if (!f->contents)
-				err(1, "Reading file %s", f->name);
 			continue;
 		}
 
 		is_c_src = strends(f->name, ".c");
 		if (!is_c_src && !strends(f->name, ".h")) {
-			/* We don't pull in contents of non-source files */
 			dest = &m->other_files;
 			continue;
 		}
 
-		f->contents = grab_file(f, f->name, &f->contents_size);
-		if (!f->contents)
-			err(1, "Reading file %s", f->name);
-
 		if (!strchr(f->name, '/')) {
 			if (is_c_src)
 				dest = &m->c_files;
@@ -106,7 +128,7 @@ static void add_files(struct manifest *m, const char *dir)
 				else if (strstarts(f->name, "test/compile_fail"))
 					dest = &m->compile_fail_tests;
 				else
-					dest = &m->other_test_files;
+					dest = &m->other_test_c_files;
 			} else
 				dest = &m->other_test_files;
 		} else
@@ -141,9 +163,10 @@ char *report_on_lines(struct list_head *files,
 	return sofar;
 }
 
-struct manifest *get_manifest(void)
+struct manifest *get_manifest(const void *ctx, const char *dir)
 {
-	struct manifest *m = talloc(NULL, struct manifest);
+	struct manifest *m = talloc(ctx, struct manifest);
+	char *olddir;
 	unsigned int len;
 
 	m->info_file = NULL;
@@ -153,28 +176,49 @@ struct manifest *get_manifest(void)
 	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->mangled_examples);
+	list_head_init(&m->dep_dirs);
 
-	/* *This* is why people hate C. */
-	len = 32;
-	m->basename = talloc_array(m, char, len);
-	while (!getcwd(m->basename, len)) {
-		if (errno != ERANGE)
-			err(1, "Getting current directory");
-		m->basename = talloc_realloc(m, m->basename, char, len *= 2);
-	}
+	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->basename);
-	while (len && m->basename[len-1] == '/')
-		m->basename[--len] = '\0';
+	len = strlen(m->dir);
+	while (len && m->dir[len-1] == '/')
+		m->dir[--len] = '\0';
 
-	m->basename = strrchr(m->basename, '/');
+	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;
 }