From 81c1c5a8731555d6f1d67b3d834356619907e3a1 Mon Sep 17 00:00:00 2001
From: ianmdlvl <ianmdlvl>
Date: Sun, 18 Feb 2007 13:02:59 +0000
Subject: [PATCH] @@ -1,3 +1,12 @@ +chiark-utils (4.1.14) unstable; urgency=low
 + +  * summer has new -x (one file system) option. +  * summer produces
 better output with -f when scandir fails. +  * chiark-backup's snaprsync uses
 summer -x. +  * chiark-backup suggests chiark-cprogs with summer with -x. + +
 -- Ian Jackson <ian@davenant.greenend.org.uk>  Sun, 18 Feb 2007 13:02:21
 +0000 +  chiark-utils (4.1.13) unstable; urgency=low

   * New `nosnap' no-op snap kind.
---
 backup/snaprsync |  2 +-
 cprogs/summer.c  | 37 +++++++++++++++++++++++++------------
 debian/changelog |  9 +++++++++
 debian/control   |  1 +
 4 files changed, 36 insertions(+), 13 deletions(-)

diff --git a/backup/snaprsync b/backup/snaprsync
index e31c27b..5cd567a 100755
--- a/backup/snaprsync
+++ b/backup/snaprsync
@@ -65,7 +65,7 @@ ssh $rhost "$sshpfx ls -d $rvardir"
 test -d $localarea || x mkdir $localarea
 ournode=`uname -n`
 rsumsfile=for-$ournode.sums
-summer="$summer -ACDbtqf"
+summer="$summer -ACDbtqfx"
 
 td=/dev/enoent
 rc=12
diff --git a/cprogs/summer.c b/cprogs/summer.c
index ada0f14..5e85111 100644
--- a/cprogs/summer.c
+++ b/cprogs/summer.c
@@ -27,10 +27,12 @@
 #define CSUMXL 32
 
 static int quiet=0, hidectime=0, hideatime=0;
-static int hidedirsize=0, hidelinkmtime=0;
+static int hidedirsize=0, hidelinkmtime=0, onefilesystem=0;
 static int filenamefieldsep=' ';
 static FILE *errfile;
 
+#define nodeflag_fsvalid       1u
+
 static void malloc_fail(void) { perror("summer: alloc failed"); exit(12); }
 
 static void *mmalloc(size_t sz) {
@@ -156,14 +158,14 @@ static int hardlink_compar(const void *av, const void *bv) {
   return b->dev - a->dev;
 }
 
-static void recurse(const char *path);
+static void recurse(const char *path, unsigned nodeflags, dev_t fs);
 
-static void node(const char *path) {
+static void node(const char *path, unsigned nodeflags, dev_t fs) {
   char linktarg[MAXFN+1];
   struct hardlink *foundhl;
   const struct stat *stab;
   struct stat stabuf;
-  int r;
+  int r, mountpoint=0;
 
   r= lstat(path, &stabuf);
   stab= r ? 0 : &stabuf;
@@ -185,15 +187,22 @@ static void node(const char *path) {
     }
   }
 
+  if (stab) {
+    if ((nodeflags & nodeflag_fsvalid) && stab->st_dev != fs)
+      mountpoint= 1;
+    fs= stab->st_dev;
+    nodeflags |= nodeflag_fsvalid;
+  }
+
   if (!stab) problem_e(path,CSUMXL,"inaccessible");
   else if (foundhl) csum_str("hardlink");
   else if (S_ISREG(stab->st_mode)) csum_file(path);
-  else if (S_ISDIR(stab->st_mode)) csum_str("dir");
   else if (S_ISCHR(stab->st_mode)) csum_dev('c',stab);
   else if (S_ISBLK(stab->st_mode)) csum_dev('b',stab);
   else if (S_ISFIFO(stab->st_mode)) csum_str("pipe");
   else if (S_ISLNK(stab->st_mode)) csum_str("symlink");
   else if (S_ISSOCK(stab->st_mode)) csum_str("sock");
+  else if (S_ISDIR(stab->st_mode)) csum_str(mountpoint ? "mountpoint" : "dir");
   else problem(path,CSUMXL,"badobj: 0x%lx", (unsigned long)stab->st_mode);
 
   if (stab && S_ISLNK(stab->st_mode)) {
@@ -256,14 +265,14 @@ static void node(const char *path) {
 
   if (ferror(stdout)) { perror("summer: stdout"); exit(12); }
 
-  if (stab && S_ISDIR(stab->st_mode))
-    recurse(path);
+  if (stab && S_ISDIR(stab->st_mode) && !(mountpoint && onefilesystem))
+    recurse(path, nodeflags, fs);
 }
 
 static void process(const char *startpoint) {
   if (!quiet)
     fprintf(stderr,"summer: processing: %s\n",startpoint);
-  node(startpoint);
+  node(startpoint, 0,0);
   tdestroy(hardlinks,free);
   hardlinks= 0;
 }
@@ -287,7 +296,7 @@ static int recurse_compar(const void *av, const void *bv) {
   return strcmp((*a)->d_name, (*b)->d_name);
 }
 
-static void recurse(const char *path_or_buf) {
+static void recurse(const char *path_or_buf, unsigned nodeflags, dev_t fs) {
   static char *buf;
   static int buf_allocd;
   
@@ -312,13 +321,14 @@ static void recurse(const char *path_or_buf) {
   buf[pathl]= '/';
   pathl++;
   if (nentries < 0) {
-    strcpy(buf+pathl,"\\?");  errno= esave;
-    problem_e(buf,-1,"scandir failed");
+    buf[pathl]= 0;  errno= esave;
+    problem_e(buf,CSUMXL+72,"scandir failed");
+    fn_escaped(stdout,buf);  putchar('\n');
     return;
   }
   for (i=0, de=namelist; i<nentries; i++, de++) {
     strcpy(buf+pathl, (*de)->d_name);
-    node(buf);
+    node(buf, nodeflags, fs);
     free(*de);
   }
   free(namelist);
@@ -369,6 +379,9 @@ int main(int argc, const char *const *argv) {
       case 'b':
 	hidelinkmtime= 1;
 	break;
+      case 'x':
+	onefilesystem= 1;
+	break;
       case 'C':
 	hidectime= 1;
 	break;
diff --git a/debian/changelog b/debian/changelog
index 7ac8f1a..675104a 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,12 @@
+chiark-utils (4.1.14) unstable; urgency=low
+
+  * summer has new -x (one file system) option.
+  * summer produces better output with -f when scandir fails.
+  * chiark-backup's snaprsync uses summer -x.
+  * chiark-backup suggests chiark-cprogs with summer with -x.
+
+ -- Ian Jackson <ian@davenant.greenend.org.uk>  Sun, 18 Feb 2007 13:02:21 +0000
+
 chiark-utils (4.1.13) unstable; urgency=low
 
   * New `nosnap' no-op snap kind.
diff --git a/debian/control b/debian/control
index 1434f5c..b80c83b 100644
--- a/debian/control
+++ b/debian/control
@@ -11,6 +11,7 @@ Section: utils
 Priority: extra
 Architecture: all
 Depends: chiark-rwbuffer
+Suggests: chiark-cprogs (>= 4.1.14)
 Description: backup system for small systems and networks
  These are the backup scripts used by chiark.greenend.org.uk and other
  systems belonging to the Sinister Greenend Organisation.  Features:
-- 
2.30.2