Prism now supports diff versus the repository

1 files changed, 27 insertions, 2 deletions

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");