[commit] master: add debug messages about effective requested operations

[Oswald Buddenhagen via isync-devel]

commit 950ebe833decae8617cdc53513873081e4691abb
Author: Oswald Buddenhagen <o...@users.sf.net>
Date:   Thu Feb 10 21:07:40 2022 +0100

    add debug messages about effective requested operations

 src/common.h    | 7 +++++++
 src/config.c    | 9 +++++++++
 src/main_sync.c | 2 ++
 src/sync.h      | 2 ++
 4 files changed, 20 insertions(+)

diff --git a/src/common.h b/src/common.h
index a0cf895e..8cc4b845 100644
--- a/src/common.h
+++ b/src/common.h
@@ -217,6 +217,13 @@ void fmt_bits( uint bits, uint num_bits, const char 
*bit_str, const int *bit_off
        BIT_FORMATTER_RET(name, pfx) \
        BIT_FORMATTER_IMPL(name, pfx, static)
 
+#define DECL_BIT_FORMATTER_FUNCTION(name, pfx) \
+       BIT_FORMATTER_RET(name, pfx) \
+       BIT_FORMATTER_PROTO(name, pfx, );
+
+#define DEF_BIT_FORMATTER_FUNCTION(name, pfx) \
+       BIT_FORMATTER_IMPL(name, pfx, )
+
 void *nfmalloc( size_t sz );
 void *nfzalloc( size_t sz );
 void *nfrealloc( void *mem, size_t sz );
diff --git a/src/config.c b/src/config.c
index eaa2ba02..ce9993ce 100644
--- a/src/config.c
+++ b/src/config.c
@@ -5,6 +5,8 @@
  * mbsync - mailbox synchronizer
  */
 
+#define DEBUG_FLAG DEBUG_MAIN
+
 #include "config.h"
 
 #include "sync.h"
@@ -20,6 +22,8 @@ char FieldDelimiter = ';';
 char FieldDelimiter = ':';
 #endif
 
+DEF_BIT_FORMATTER_FUNCTION(ops, OP)
+
 char *
 expand_strdup( const char *s, const conffile_t *cfile )
 {
@@ -310,6 +314,10 @@ merge_ops( int cops, int ops[], const char *chan_name )
        int aops, op;
        uint i;
 
+       if (!cops && !ops[F] && !ops[N])  // Only to denoise the debug output
+               return 0;
+       debug( "merge ops (%s):\n  common: %s\n  far: %s\n  near: %s\n",
+              channel_str( chan_name ), fmt_ops( cops ).str, fmt_ops( ops[F] 
).str, fmt_ops( ops[N] ).str );
        aops = ops[F] | ops[N];
        if (ops[F] & XOP_HAVE_TYPE) {
                if (aops & OP_MASK_TYPE) {  // PullNew, etc.
@@ -377,6 +385,7 @@ merge_ops( int cops, int ops[], const char *chan_name )
                        ops[N] |= cops & op;
                }
        }
+       debug( "  => far: %s\n  => near: %s\n", fmt_ops( ops[F] ).str, fmt_ops( 
ops[N] ).str );
        return 0;
 }
 
diff --git a/src/main_sync.c b/src/main_sync.c
index f1ea7007..6134631e 100644
--- a/src/main_sync.c
+++ b/src/main_sync.c
@@ -186,6 +186,8 @@ add_channel( chan_ent_t ***chanapp, channel_conf_t *chan, 
int ops[] )
        merge_actions( chan, ops, XOP_HAVE_CREATE, OP_CREATE, 0 );
        merge_actions( chan, ops, XOP_HAVE_REMOVE, OP_REMOVE, 0 );
        merge_actions( chan, ops, XOP_HAVE_EXPUNGE, OP_EXPUNGE, 0 );
+       debug( "channel ops (%s):\n  far: %s\n  near: %s\n",
+              chan->name, fmt_ops( ops[F] ).str, fmt_ops( ops[N] ).str );
 
        for (int t = 0; t < 2; t++) {
                if (chan->ops[t] & OP_MASK_TYPE)
diff --git a/src/sync.h b/src/sync.h
index f69f172b..40c90ec3 100644
--- a/src/sync.h
+++ b/src/sync.h
@@ -41,6 +41,8 @@ BIT_ENUM(
 #define OP_MASK_TYPE (OP_NEW | OP_RENEW | OP_DELETE | OP_FLAGS)  // Asserted 
in the target side ops
 #define XOP_MASK_DIR (XOP_PUSH | XOP_PULL)
 
+DECL_BIT_FORMATTER_FUNCTION(ops, OP)
+
 typedef struct channel_conf {
        struct channel_conf *next;
        const char *name;


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