Import of slightly trimmed cvs-1.8 distribution. Generated files

and non-unix code has been left out.

1 files changed, 129 insertions, 0 deletions

diff --git a/contrib/cvs/src/no_diff.c b/contrib/cvs/src/no_diff.c
new file mode 100644
index 0000000..a0d00f5
--- /dev/null
+++ b/contrib/cvs/src/no_diff.c
@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 1992, Brian Berliner and Jeff Polk
+ * Copyright (c) 1989-1992, Brian Berliner
+ * 
+ * You may distribute under the terms of the GNU General Public License as
+ * specified in the README file that comes with the CVS 1.4 kit.
+ * 
+ * No Difference
+ * 
+ * The user file looks modified judging from its time stamp; however it needn't
+ * be.  No_difference() finds out whether it is or not. If it is not, it
+ * updates the administration.
+ * 
+ * returns 0 if no differences are found and non-zero otherwise
+ */
+
+#include "cvs.h"
+
+int
+No_Difference (file, vers, entries, repository, update_dir)
+    char *file;
+    Vers_TS *vers;
+    List *entries;
+    char *repository;
+    char *update_dir;
+{
+    Node *p;
+    char tmp[L_tmpnam+1];
+    int ret;
+    char *ts, *options;
+    int retcode = 0;
+    char *tocvsPath;
+
+    if (!vers->srcfile || !vers->srcfile->path)
+	return (-1);			/* different since we couldn't tell */
+
+    if (vers->entdata && vers->entdata->options)
+	options = xstrdup (vers->entdata->options);
+    else
+	options = xstrdup ("");
+
+    retcode = RCS_checkout (vers->srcfile->path, NULL, vers->vn_user, options,
+                            tmpnam (tmp), 0, 0);
+    if (retcode == 0)
+    {
+#if 0
+	/* Why would we want to munge the modes?  And only if the timestamps
+	   are different?  And even for commands like "cvs status"????  */
+	if (!iswritable (file))		/* fix the modes as a side effect */
+	    xchmod (file, 1);
+#endif
+
+	tocvsPath = wrap_tocvs_process_file (file);
+
+	/* do the byte by byte compare */
+	if (xcmp (tocvsPath == NULL ? file : tocvsPath, tmp) == 0)
+	{
+#if 0
+	    /* Why would we want to munge the modes?  And only if the
+	       timestamps are different?  And even for commands like
+	       "cvs status"????  */
+	    if (cvswrite == FALSE)	/* fix the modes as a side effect */
+		xchmod (file, 0);
+#endif
+
+	    /* no difference was found, so fix the entries file */
+	    ts = time_stamp (file);
+	    Register (entries, file,
+		      vers->vn_user ? vers->vn_user : vers->vn_rcs, ts,
+		      options, vers->tag, vers->date, (char *) 0);
+#ifdef SERVER_SUPPORT
+	    if (server_active)
+	    {
+		/* We need to update the entries line on the client side.  */
+		server_update_entries
+		  (file, update_dir, repository, SERVER_UPDATED);
+	    }
+#endif
+	    free (ts);
+
+	    /* update the entdata pointer in the vers_ts structure */
+	    p = findnode (entries, file);
+	    vers->entdata = (Entnode *) p->data;
+
+	    ret = 0;
+	}
+	else
+	    ret = 1;			/* files were really different */
+        if (tocvsPath)
+	{
+	    /* Need to call unlink myself because the noexec variable
+	     * has been set to 1.  */
+	    if (trace)
+		(void) fprintf (stderr, "%c-> unlink (%s)\n",
+#ifdef SERVER_SUPPORT
+				(server_active) ? 'S' : ' ',
+#else
+				' ',
+#endif
+				tocvsPath);
+	    if (unlink (tocvsPath) < 0)
+		error (0, errno, "could not remove %s", tocvsPath);
+	}
+    }
+    else
+    {
+	if (update_dir[0] == '\0')
+	    error (0, retcode == -1 ? errno : 0,
+		   "could not check out revision %s of %s",
+		   vers->vn_user, file);
+	else
+	    error (0, retcode == -1 ? errno : 0,
+		   "could not check out revision %s of %s/%s",
+		   vers->vn_user, update_dir, file);
+	ret = -1;			/* different since we couldn't tell */
+    }
+
+    if (trace)
+#ifdef SERVER_SUPPORT
+	(void) fprintf (stderr, "%c-> unlink2 (%s)\n",
+			(server_active) ? 'S' : ' ', tmp);
+#else
+	(void) fprintf (stderr, "-> unlink (%s)\n", tmp);
+#endif
+    if (unlink (tmp) < 0)
+	error (0, errno, "could not remove %s", tmp);
+    free (options);
+    return (ret);
+}