-#include "talloc/talloc.h"
-#include "string/string.h"
+#include <ccan/talloc/talloc.h>
+#include <ccan/str/str.h>
+#include <ccan/grab_file/grab_file.h>
+#include <ccan/str_talloc/str_talloc.h>
#include "tools.h"
#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, ...)
if (!p)
err(1, "Executing '%s'", cmd);
- buffer = grab_fd(ctx, fileno(p));
+ buffer = grab_fd(ctx, fileno(p), NULL);
if (!buffer)
err(1, "Reading from '%s'", cmd);
pclose(p);
}
/* 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 %s/_info.c",
- infofile, dir);
+ char *infofile = talloc_asprintf(ctx, "%s/info.%u", dir, getpid());
+ 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);
return deps;
}
+/* Make copy of src, replacing "from" with "to". */
+static char *replace(const void *ctx, const char *src,
+ const char *from, const char *to)
+{
+ char *ret = talloc_strdup(ctx, "");
+ unsigned int rlen, len, add;
+
+ rlen = len = 0;
+ for (;;) {
+ const char *next = strstr(src+len, from);
+ if (!next)
+ add = strlen(src+len) + 1;
+ else
+ add = next - (src+len);
+
+ ret = talloc_realloc(ctx, ret, char, rlen + add + strlen(to)+1);
+ memcpy(ret+rlen, src+len, add);
+ if (!next)
+ return ret;
+ len += add;
+ rlen += add;
+ strcpy(ret+rlen, to);
+ rlen += strlen(to);
+ len += strlen(from);
+ }
+}
+
+/* This is a terrible hack. We scan for ccan/ strings. */
+static char **get_one_safe_deps(const void *ctx,
+ const char *dir, const char *name,
+ unsigned int *num)
+{
+ char **deps, **lines, *raw, *fname;
+ unsigned int i, n = 0;
+
+ fname = talloc_asprintf(ctx, "%s/%s/_info", dir, name);
+ raw = grab_file(fname, fname, NULL);
+ if (!raw)
+ errx(1, "Could not open %s", fname);
+
+ /* Replace \n by actual line breaks, and split it. */
+ lines = strsplit(raw, replace(raw, raw, "\\n", "\n"), "\n", &n);
+
+ deps = talloc_array(ctx, char *, n+1);
+
+ for (n = i = 0; lines[i]; i++) {
+ char *str;
+ unsigned int len;
+
+ /* Ignore lines starting with # (e.g. #include) */
+ if (lines[i][0] == '#')
+ continue;
+
+ /* Start of line, or after ". */
+ if (strstarts(lines[i], "ccan/"))
+ str = lines[i];
+ else {
+ str = strstr(lines[i], "\"ccan/");
+ if (!str)
+ continue;
+ str++;
+ }
+
+ len = strspn(str, "/abcdefghijklmnopqrstuvxwyz12345678980_");
+ if (len == 5)
+ continue;
+ deps[n++] = talloc_strndup(deps, str, len);
+ }
+ deps[n] = NULL;
+ talloc_free(fname);
+ if (num)
+ *num = n;
+ return deps;
+}
+
static bool have_dep(char **deps, unsigned int num, const char *dep)
{
unsigned int i;
}
/* Gets all the dependencies, recursively. */
-char **get_deps(const void *ctx, const char *dir)
+static char **
+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_deps(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_deps(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_libs(const void *ctx, const char *dir,
+ const char *name, unsigned int *num)
+{
+ char **libs, *cmd, *infofile;
+
+ infofile = compile_info(ctx, dir, name);
+ if (!infofile)
+ errx(1, "Could not compile _info for '%s'", name);
+
+ cmd = talloc_asprintf(ctx, "%s libs", infofile);
+ libs = lines_from_cmd(cmd, num, "%s", cmd);
+ if (!libs)
+ err(1, "Could not run '%s'", cmd);
+ return libs;
+}
+
+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, name, &num);
+ }
+ return get_all_deps(ctx, dir, name, get_one_deps);
+}
+
+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, name, &num);
+ }
+ return get_all_deps(ctx, dir, name, get_one_safe_deps);
+}
projects / ccan / blobdiff