From bc1fc7bc062889d184f91a501156c6698011fefb Mon Sep 17 00:00:00 2001
From: Adam Dickmeiss <adam@indexdata.dk>
Date: Fri, 8 Dec 1995 16:21:13 +0000
Subject: [PATCH] Work on commit/update.

---
 bfile/bfile.c |   75 +++++++++++++++++++++++++++++++++++++++++++++------------
 bfile/cfile.c |   10 +++++---
 bfile/mfile.c |    8 ++++--
 3 files changed, 73 insertions(+), 20 deletions(-)

diff --git a/bfile/bfile.c b/bfile/bfile.c
index 46c4d76..85b01bb 100644
--- a/bfile/bfile.c
+++ b/bfile/bfile.c
@@ -4,7 +4,10 @@
  * Sebastian Hammer, Adam Dickmeiss
  *
  * $Log: bfile.c,v $
- * Revision 1.15  1995-12-01 16:24:28  adam
+ * Revision 1.16  1995-12-08 16:21:13  adam
+ * Work on commit/update.
+ *
+ * Revision 1.15  1995/12/01  16:24:28  adam
  * Commit files use separate meta file area.
  *
  * Revision 1.14  1995/12/01  11:37:21  adam
@@ -51,6 +54,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <assert.h>
+#include <unistd.h>
 
 #include <alexutil.h>
 #include <bfile.h>
@@ -58,17 +62,22 @@
 
 static MFile_area commit_area = NULL;
 
-void bf_cache (void)
+void bf_cache (int enableFlag)
 {
-    if (!commit_area)
-        if (res_get (common_resource, "commit"))
-            commit_area = mf_init ("commit");
-        else
-        {
-            logf (LOG_FATAL, "Commit area must be defined if commit"
-                  "is to be enabled");
-            exit (1);
-        }
+    if (enableFlag)
+    {
+        if (!commit_area)
+            if (res_get (common_resource, "commit"))
+                commit_area = mf_init ("commit");
+            else
+            {
+                logf (LOG_FATAL, "Commit area must be defined if commit"
+                      "is to be enabled");
+                exit (1);
+            }
+    }
+    else
+        commit_area = NULL;
 }
 
 int bf_close (BFile bf)
@@ -90,10 +99,10 @@ BFile bf_open (const char *name, int block_size, int wflag)
         int first_time;
 
         logf (LOG_LOG, "cf,mf_open %s", name);
+        
         tmp->mf = mf_open (0, name, block_size, 0);
         tmp->cf = cf_open (tmp->mf, commit_area, name, block_size,
                            wflag, &first_time);
-
         if (first_time)
         {
             outf = fopen ("cache", "a");
@@ -131,7 +140,20 @@ int bf_write (BFile bf, int no, int offset, int num, const void *buf)
     return mf_write (bf->mf, no, offset, num, buf);
 }
 
-void bf_commit (void)
+int bf_commitExists (void)
+{
+    FILE *inf;
+
+    inf = fopen ("cache", "r");
+    if (inf)
+    {
+        fclose (inf);
+        return 1;
+    }
+    return 0;
+}
+
+void bf_commitExec (void)
 {
     FILE *inf;
     int block_size;
@@ -143,8 +165,8 @@ void bf_commit (void)
     assert (commit_area);
     if (!(inf = fopen ("cache", "r")))
     {
-        logf (LOG_FATAL|LOG_ERRNO, "cannot open commit %s", "cache");
-        exit (1);
+        logf (LOG_LOG, "No commit file");
+        return ;
     }
     while (fscanf (inf, "%s %d", path, &block_size) == 2)
     {
@@ -158,3 +180,26 @@ void bf_commit (void)
     }
     fclose (inf);
 }
+
+void bf_commitClean (void)
+{
+    FILE *inf;
+    int block_size;
+    char path[256];
+    MFile mf;
+    CFile cf;
+
+    assert (commit_area);
+    if (!(inf = fopen ("cache", "r")))
+        return ;
+    while (fscanf (inf, "%s %d", path, &block_size) == 2)
+    {
+        mf = mf_open (0, path, block_size, 0);
+        cf = cf_open (mf, commit_area, path, block_size, 1, NULL);
+
+        cf_close (cf);
+        mf_close (mf);
+    }
+    fclose (inf);
+    unlink ("cache");
+}
diff --git a/bfile/cfile.c b/bfile/cfile.c
index cfcd6da..284de86 100644
--- a/bfile/cfile.c
+++ b/bfile/cfile.c
@@ -4,7 +4,10 @@
  * Sebastian Hammer, Adam Dickmeiss
  *
  * $Log: cfile.c,v $
- * Revision 1.4  1995-12-01 16:24:28  adam
+ * Revision 1.5  1995-12-08 16:21:14  adam
+ * Work on commit/update.
+ *
+ * Revision 1.4  1995/12/01  16:24:28  adam
  * Commit files use separate meta file area.
  *
  * Revision 1.3  1995/12/01  11:37:22  adam
@@ -82,9 +85,10 @@ CFile cf_open (MFile mf, MFile_area area, const char *fname,
         logf (LOG_FATAL|LOG_ERRNO, "Failed to open %s", path);
         exit (1);
     }
-    if (!mf_read (cf->hash_mf, 0, 0, sizeof(cf->head), &cf->head))
+    if (!firstp || !mf_read (cf->hash_mf, 0, 0, sizeof(cf->head), &cf->head))
     {
-        *firstp = 1;
+        if (firstp)
+            *firstp = 1;
         cf->head.block_size = block_size;
         cf->head.hash_size = 401;
         hash_bytes = cf->head.hash_size * sizeof(int);
diff --git a/bfile/mfile.c b/bfile/mfile.c
index 7c397b6..11ee0a6 100644
--- a/bfile/mfile.c
+++ b/bfile/mfile.c
@@ -4,7 +4,10 @@
  * Sebastian Hammer, Adam Dickmeiss
  *
  * $Log: mfile.c,v $
- * Revision 1.14  1995-12-05 13:12:37  quinn
+ * Revision 1.15  1995-12-08 16:21:14  adam
+ * Work on commit/update.
+ *
+ * Revision 1.14  1995/12/05  13:12:37  quinn
  * Added <errno.h>
  *
  * Revision 1.13  1995/11/30  17:00:50  adam
@@ -171,7 +174,8 @@ MFile_area mf_init(const char *name)
     logf (LOG_DEBUG, "mf_init(%s)", name);
     for (mp = open_areas; mp; mp = mp->next)
     	if (!strcmp(name, mp->name))
-    	    abort();
+    	    return mp;
+    ma = xmalloc(sizeof(MFile_area_struct));
     strcpy(ma->name, name);
     ma->next = open_areas;
     open_areas = ma;
-- 
1.7.10.4