1 files changed, 121 insertions, 0 deletions
diff --git a/src/repo/s6rc_repo_makedefbundle.c b/src/repo/s6rc_repo_makedefbundle.c
new file mode 100644
index 0000000..5c67917
--- /dev/null
+++ b/src/repo/s6rc_repo_makedefbundle.c
@@ -0,0 +1,121 @@
+/* ISC license. */
+
+#include <skalibs/bsdsnowflake.h>
+
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include <skalibs/stat.h>
+#include <skalibs/direntry.h>
+#include <skalibs/strerr.h>
+#include <skalibs/stralloc.h>
+#include <skalibs/djbunix.h>
+#include <skalibs/skamisc.h>
+
+#include <s6-rc/repo.h>
+
+int s6rc_repo_makedefbundle (char const *repo, char const *set, char const *bundle)
+{
+  size_t repolen = strlen(repo) ;
+  size_t setlen = strlen(set) ;
+  size_t bundlelen = strlen(bundle) ;
+  size_t bfnlen = repolen + setlen + bundlelen + 28 ;
+  DIR *dir ;
+  char bfn[bfnlen + 1] ;
+  char subfn[repolen + setlen + 17] ;
+
+  memcpy(bfn, repo, repolen) ;
+  memcpy(bfn + repolen, "/sources/.atomics/", 18) ;
+  memcpy(bfn + repolen + 18, bundle, bundlelen + 1) ;
+  
+  if (access(bfn, F_OK) == 0) goto errexists ;
+  if (errno != ENOENT)
+  {
+    strerr_warnfu2sys("check existence of ", bfn) ;
+    return 0 ;
+  }
+  memcpy(bfn + repolen + 10, "bundle", 6) ;
+  if (access(bfn, F_OK) == 0) goto errexists ;
+  if (errno != ENOENT)
+  {
+    strerr_warnfu2sys("check existence of ", bfn) ;
+    return 0 ;
+  }
+
+  memcpy(bfn + repolen + 9, set, setlen) ;
+  memcpy(bfn + repolen + 9 + setlen, "/bundle/", 8) ;
+  memcpy(bfn + repolen + 17 + setlen, bundle, bundlelen + 1) ;
+  if (mkdir(bfn, 02755) == -1)
+  {
+    if (errno != EEXIST) strerr_warnfu2sys("mkdir ", bfn) ;
+    else strerr_warnf6x("bundle ", bundle, " is already defined in set ", set, " of repository ", repo) ;
+    return 0 ;
+  }
+  memcpy(bfn + repolen + setlen + 17 + bundlelen, "/type", 6) ;
+  if (!openwritenclose_unsafe(bfn, "bundle\n", 7))
+  {
+    strerr_warnfu2sys("write to ", bfn) ;
+    return 0 ;
+  }
+  memcpy(bfn + repolen + setlen + 18 + bundlelen, "contents.d", 11) ;
+  if (mkdir(bfn, 02755) == -1)
+  {
+    strerr_warnfu2sys("mkdir ", bfn) ;
+    return 0 ;
+  }
+  bfn[bfnlen] = '/' ;
+
+  memcpy(subfn, bfn, repolen + 10 + setlen) ;
+  memcpy(subfn + repolen + 10 + setlen, "onboot", 7) ;
+  dir = opendir(subfn) ;
+  if (!dir)
+  {
+    strerr_warnfu2sys("opendir ", subfn) ;
+    return 0 ;
+  }
+
+  for (;;)
+  {
+    size_t len ;
+    direntry *d ;
+    errno = 0 ;
+    d = readdir(dir) ;
+    if (!d) break ;
+    if (d->d_name[0] == '.') continue ;
+    len = strlen(d->d_name) ;
+    char fn[bfnlen + len + 2] ;
+    memcpy(fn, bfn, bfnlen + 1) ;
+    memcpy(fn + bfnlen + 1, d->d_name, len + 1) ;
+    if (!openwritenclose_unsafe(fn, "", 0))
+    {
+      strerr_warnfu2sys("write to ", fn) ;
+      dir_close(dir) ;
+      return 0 ;
+    }
+  }
+  dir_close(dir) ;
+  if (errno)
+  {
+    strerr_warnfu2sys("readdir ", subfn) ;
+    return 0 ;
+  }
+
+  return 1 ;
+
+ errexists:
+  if (sareadlink(&satmp, bfn) == -1)
+  {
+    strerr_warnfu2sys("readlink ", bfn) ;
+    return 0 ;
+  }
+  if (!stralloc_0(&satmp))
+  {
+    strerr_warnfu1sys("stralloc_catb ") ;
+    satmp.len = 0 ;
+    return 0 ;
+  }
+  strerr_warnf4x("bundle ", bundle, " is already defined at ", satmp.s) ;
+  satmp.len = 0 ;
+  return (errno = EINVAL, 0) ;
+}