From ab5153e97557791e2c12418ad3f53f53bed2a67a Mon Sep 17 00:00:00 2001
From: Jeffrey Armstrong <jeffrey.armstrong@approximatrix.com>
Date: Mon, 6 Jan 2014 20:44:03 -0500
Subject: Prism now supports diff versus the repository

---
 prism.c | 29 +++++++++++++++++++++++++++--
 1 file changed, 27 insertions(+), 2 deletions(-)

(limited to 'prism.c')

diff --git a/prism.c b/prism.c
index cdcaa90..bf493d1 100644
--- a/prism.c
+++ b/prism.c
@@ -156,6 +156,27 @@ int res;
     }
 }
 
+static void diff_task(const char *filename)
+{
+int res;
+
+    printf("Comparing current %s to latest repository revision...\n", filename);
+    res = diff_db_file(filename, -1);
+    switch(res) { 
+        case PRET_OK:
+            printf("  diff complete\n");
+            break;
+        case PRET_GZFAILED:
+            printf("  ERR: decompression failure\n");
+            break;
+        case PRET_NOREVISION:
+            printf("  ERR: no applicable revision found\n");
+            break;
+        default:
+            printf("  ERR: diff failed\n");
+    }
+}
+
 int main(int argc, char *argv[])
 {
     if(argc == 1) {
@@ -179,8 +200,12 @@ int main(int argc, char *argv[])
         hash_task(argv[2]);
     else if(strcmp(argv[1], "revert") == 0 && argc == 3)
         revert_task(argv[2]);
-    else
-        printf("Error processing command...\n");
+    else if(strcmp(argv[1], "diff") == 0 && argc == 3)
+        diff_task(argv[2]);
+    else {
+        usage(argv[0]);
+        printf("Error processing command...\n\n");
+    }
 
     printf("\n");
 
-- 
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