#include <err.h>
#include <stdbool.h>
#include <unistd.h>
+#include <errno.h>
static char ** __attribute__((format(printf, 3, 4)))
lines_from_cmd(const void *ctx, unsigned int *num, char *format, ...)
}
/* Be careful about trying to compile over running programs (parallel make) */
-static char *compile_info(const void *ctx, const char *dir)
+static char *compile_info(const void *ctx, const char *dir, const char *name)
{
char *infofile = talloc_asprintf(ctx, "%s/info.%u", dir, getpid());
- char *cmd = talloc_asprintf(ctx, "cc " CFLAGS " -o %s -x c %s/_info",
- infofile, dir);
+ char *cmd = talloc_asprintf(ctx, "cc " CFLAGS
+ " -o %s -x c %s/%s/_info",
+ infofile, dir, name);
talloc_set_destructor(infofile, unlink_info);
if (system(cmd) != 0)
return NULL;
return infofile;
}
-static char **get_one_deps(const void *ctx, const char *dir, unsigned int *num)
+static char **get_one_deps(const void *ctx, const char *dir,
+ const char *name, unsigned int *num)
{
char **deps, *cmd, *infofile;
- infofile = compile_info(ctx, dir);
+ infofile = compile_info(ctx, dir, name);
if (!infofile)
- errx(1, "Could not compile _info for '%s'", dir);
+ errx(1, "Could not compile _info for '%s'", name);
cmd = talloc_asprintf(ctx, "%s depends", infofile);
deps = lines_from_cmd(cmd, num, "%s", cmd);
/* This is a terrible hack. We scan for ccan/ strings. */
static char **get_one_safe_deps(const void *ctx,
- const char *dir, unsigned int *num)
+ const char *dir, const char *name,
+ unsigned int *num)
{
char **deps, **lines, *raw, *fname;
unsigned int i, n = 0;
- fname = talloc_asprintf(ctx, "%s/_info", dir);
+ fname = talloc_asprintf(ctx, "%s/%s/_info", dir, name);
raw = grab_file(fname, fname, NULL);
if (!raw)
errx(1, "Could not open %s", fname);
/* Gets all the dependencies, recursively. */
static char **
-get_all_deps(const void *ctx, const char *dir,
- char **(*get_one)(const void *, const char *, unsigned int *))
+get_all_deps(const void *ctx, const char *dir, const char *name,
+ char **(*get_one)(const void *, const char *, const char *,
+ unsigned int *))
{
char **deps;
unsigned int i, num;
- deps = get_one(ctx, dir, &num);
+ deps = get_one(ctx, dir, name, &num);
for (i = 0; i < num; i++) {
char **newdeps;
unsigned int j, newnum;
if (!strstarts(deps[i], "ccan/"))
continue;
- newdeps = get_one(ctx, deps[i], &newnum);
+ newdeps = get_one(ctx, dir, deps[i] + strlen("ccan/"),
+ &newnum);
/* Should be short, so brute-force out dups. */
for (j = 0; j < newnum; j++) {
return deps;
}
-char **get_deps(const void *ctx, const char *dir, bool recurse)
+char **get_deps(const void *ctx, const char *dir, const char *name,
+ bool recurse)
{
if (!recurse) {
unsigned int num;
- return get_one_deps(ctx, dir, &num);
+ return get_one_deps(ctx, dir, name, &num);
}
- return get_all_deps(ctx, dir, get_one_deps);
+ return get_all_deps(ctx, dir, name, get_one_deps);
}
-char **get_safe_ccan_deps(const void *ctx, const char *dir, bool recurse)
+char **get_safe_ccan_deps(const void *ctx, const char *dir,
+ const char *name, bool recurse)
{
if (!recurse) {
unsigned int num;
- return get_one_safe_deps(ctx, dir, &num);
+ return get_one_safe_deps(ctx, dir, name, &num);
}
- return get_all_deps(ctx, dir, get_one_safe_deps);
+ return get_all_deps(ctx, dir, name, get_one_safe_deps);
}
+char *talloc_basename(const void *ctx, const char *dir)
+{
+ char *p = strrchr(dir, '/');
+
+ if (!p)
+ return (char *)dir;
+ return talloc_strdup(ctx, p+1);
+}
+
+char *talloc_dirname(const void *ctx, const char *dir)
+{
+ char *p = strrchr(dir, '/');
+
+ if (!p)
+ return talloc_strdup(ctx, ".");
+ return talloc_strndup(ctx, dir, p - dir);
+}
+
+char *talloc_getcwd(const void *ctx)
+{
+ unsigned int len;
+ char *cwd;
+
+ /* *This* is why people hate C. */
+ len = 32;
+ cwd = talloc_array(ctx, char, len);
+ while (!getcwd(cwd, len)) {
+ if (errno != ERANGE) {
+ talloc_free(cwd);
+ return NULL;
+ }
+ cwd = talloc_realloc(ctx, cwd, char, len *= 2);
+ }
+ return cwd;
+}
+