s6-rc-set-list is now s6-rc-set-status and does everything

1 files changed, 118 insertions, 0 deletions

diff --git a/src/repo/s6-rc-set-status.c b/src/repo/s6-rc-set-status.c
new file mode 100644
index 0000000..b58811b
--- /dev/null
+++ b/src/repo/s6-rc-set-status.c
@@ -0,0 +1,118 @@
+/* ISC license. */
+
+#include <skalibs/nonposix.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+
+#include <skalibs/uint64.h>
+#include <skalibs/envexec.h>
+#include <skalibs/bytestr.h>
+#include <skalibs/direntry.h>
+#include <skalibs/buffer.h>
+
+#include <s6-rc/config.h>
+#include <s6-rc/repo.h>
+
+#define USAGE "s6-rc-set-status [ -v verbosity ] [ -r repo ] [ -E | -e ] set services..."
+#define dieusage() strerr_dieusage(100, USAGE)
+#define dieout() strerr_diefu1sys(111, "write to stdout")
+
+enum golb_e
+{
+  GOLB_IGNORE_ESSENTIALS = 0x01,
+  GOLB_NOSUB = 0x02,
+} ;
+
+enum gola_e
+{
+  GOLA_VERBOSITY,
+  GOLA_REPODIR,
+  GOLA_N
+} ;
+
+int main (int argc, char const **argv)
+{
+  static gol_bool const rgolb[] =
+  {
+    { .so = 'E', .lo = "with-essentials", .clear = GOLB_IGNORE_ESSENTIALS, .set = 0 },
+    { .so = 'e', .lo = "without-essentials", .clear = 0, .set = GOLB_IGNORE_ESSENTIALS },
+    { .so = 'L', .lo = "list", .clear = 0, .set = GOLB_NOSUB },
+  } ;
+  static gol_arg const rgola[] =
+  {
+    { .so = 'v', .lo = "verbosity", .i = GOLA_VERBOSITY },
+    { .so = 'r', .lo = "repodir", .i = GOLA_REPODIR }
+  } ;
+  int fdlock ;
+  unsigned int verbosity = 1 ;
+  uint64_t wgolb = 0 ;
+  char const *setname ;
+  char const *wgola[GOLA_N] = { 0 } ;
+  unsigned int golc ;
+  uint8_t sub ;
+
+  PROG = "s6-rc-set-status" ;
+  wgola[GOLA_REPODIR] = S6RC_REPODIR ;
+
+  golc = GOL_main(argc, argv, rgolb, rgola, &wgolb, wgola) ;
+  argc -= golc ; argv += golc ;
+  if (argc < 2) dieusage() ;
+  setname = *argv++ ; argc-- ;
+  if (wgola[GOLA_VERBOSITY] && !uint0_scan(wgola[GOLA_VERBOSITY], &verbosity))
+    strerr_dief1x(100, "verbosity needs to be an unsigned integer") ;
+  if (strchr(setname, '/') || strchr(setname, '\n'))
+      strerr_dief2x(100, "set", " names cannot contain / or newlines") ;
+  for (unsigned int i = 0 ; i < argc ; i++)
+  {
+    if (argv[i][0] == '.')
+      strerr_dief2x(100, "service", " names cannot start with a dot") ;
+    if (strchr(argv[i], '/') || strchr(argv[i], '\n'))
+      strerr_dief2x(100, "service", " names cannot contain / or newlines") ;
+  }
+
+  fdlock = s6rc_repo_lock(wgola[GOLA_REPODIR], 1) ;
+  if (fdlock == -1) strerr_diefu2sys(111, "lock ", wgola[GOLA_REPODIR]) ;
+
+  {
+    int e = s6rc_repo_checkset(wgola[GOLA_REPODIR], setname) ;
+    if (e) _exit(e) ;
+  }
+
+  qsort(argv, argc, sizeof(char const *), &str_cmp) ;
+
+  size_t repolen = strlen(wgola[GOLA_REPODIR]) ;
+  size_t setlen = strlen(setname) ;
+  char fn[repolen + setlen + 17] ;
+  memcpy(fn, wgola[GOLA_REPODIR], repolen) ;
+  memcpy(fn + repolen, "/sources/", 9) ;
+  memcpy(fn + repolen + 9, setname, setlen) ;
+  fn[repolen + 9 + setlen] = '/' ;
+
+  sub = wgolb & GOLB_IGNORE_ESSENTIALS ? 3 : 4 ;
+  while (sub--)
+  {
+    memcpy(fn + repolen + 10 + setlen, s6rc_repo_subnames[sub], 7) ;
+    DIR *dir = opendir(fn) ;
+    if (!dir) strerr_diefu2sys(111, "opendir ", fn) ;
+    for (;;)
+    {
+      direntry *d ;
+      errno = 0 ;
+      d = readdir(dir) ;
+      if (!d) break ;
+      if (d->d_name[0] == '.') continue ;
+      if (argc && !bsearch(d->d_name, argv, argc, sizeof(char const *), &str_bcmp)) continue ;
+      if (buffer_puts(buffer_1, d->d_name) < 0) dieout() ;
+      if (!(wgolb & GOLB_NOSUB))
+        if (buffer_put(buffer_1, "/", 1) < 0
+         || buffer_put(buffer_1, s6rc_repo_subnames[sub], 6) < 0) dieout() ;
+      if (buffer_put(buffer_1, "\n", 1) < 0) dieout() ;
+    }
+    if (errno) strerr_diefu2sys(111, "readdir ", fn) ;
+    dir_close(dir) ;
+  }
+  if (!buffer_flush(buffer_1)) strerr_diefu1sys(111, "write to stdout") ;
+  _exit(0) ;
+}