Add set-copy, set-delete

Signed-off-by: Laurent Bercot <ska@appnovation.com>

1 files changed, 87 insertions, 0 deletions

diff --git a/src/repo/s6-rc-set-copy.c b/src/repo/s6-rc-set-copy.c
new file mode 100644
index 0000000..b084c7d
--- /dev/null
+++ b/src/repo/s6-rc-set-copy.c
@@ -0,0 +1,87 @@
+/* ISC license. */
+
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include <skalibs/posixplz.h>
+#include <skalibs/prog.h>
+#include <skalibs/strerr.h>
+#include <skalibs/gol.h>
+#include <skalibs/djbunix.h>
+
+#include <s6-rc/config.h>
+#include <s6-rc/s6rc.h>
+
+#define USAGE "s6-rc-set-copy [ -v verbosity ] [ -r repo ] srcset dstset"
+#define dieusage() strerr_dieusage(100, USAGE)
+
+static void cleanup (char const *fn)
+{
+  int e = errno ;
+  rm_rf(fn) ;
+  errno = e ;
+}
+
+static inline void docopy (char const *repo, char const *srcname, char const *dstname)
+{
+  size_t repolen = strlen(repo) ;
+  size_t srclen = strlen(srcname) ;
+  size_t dstlen = strlen(dstname) ;
+  char src[repolen + srclen + 10] ;
+  char dst[repolen + dstlen + 10] ;
+  memcpy(src, repo, repolen) ;
+  memcpy(src + repolen, "/sources/", 9) ;
+  memcpy(src + repolen + 9, srcname, srclen + 1) ;
+  memcpy(dst, src, repolen + 9) ;
+  memcpy(dst + repolen + 9, dstname, dstlen + 1) ;
+  if (access(dst, F_OK) == -1)
+  {
+    if (errno != ENOENT) strerr_diefu2sys(111, "access ", dst) ;
+  }
+  else strerr_dief4x(100, "set ", dstname, " already exists in repository ", repo) ;
+  if (!hiercopy(src, dst))
+  {
+    cleanup(dst) ;
+    strerr_diefu4sys(111, "copy ", src, " to ", dst) ;
+  }
+}
+
+enum gola_e
+{
+  GOLA_VERBOSITY,
+  GOLA_REPODIR,
+  GOLA_N
+} ;
+
+static gol_arg const rgola[2] =
+{
+  { .so = 'v', .lo = "verbosity", .i = GOLA_VERBOSITY },
+  { .so = 'r', .lo = "repodir", .i = GOLA_REPODIR }
+} ;
+
+int main (int argc, char const *const *argv)
+{
+  char const *repo = S6RC_REPO_BASE ;
+  int fdlock ;
+  unsigned int verbosity = 1 ;
+  char const *wgola[2] = { 0 } ;
+  unsigned int golc ;
+
+  PROG = "s6-rc-set-copy" ;
+  golc = gol_main(argc, argv, 0, 0, rgola, 2, 0, wgola) ;
+  argc -= golc ; argv += golc ;
+  if (wgola[GOLA_VERBOSITY] && !uint0_scan(wgola[GOLA_VERBOSITY], &verbosity))
+    strerr_dief1x(100, "verbosity needs to be an unsigned integer") ;
+  if (wgola[GOLA_REPODIR]) repo = wgola[GOLA_REPODIR] ;
+  if (argc < 2) dieusage() ;
+  for (unsigned int i = 0 ; i < 2 ; i++)
+    if (strchr(argv[i], '/') || strchr(argv[i], '\n'))
+      strerr_dief1x(100, "set names cannot contain / or newlines") ;
+
+  fdlock = s6rc_repo_lock(repo, 1) ;
+  if (fdlock == -1) strerr_diefu2sys(111, "lock ", repo) ;
+
+  docopy(repo, argv[0], argv[1]) ;
+  return 0 ;
+}