Move center_text function into utils.c/utils.h

* Remove 'v' prefix
* Print version the same way in the indexer

2 files changed, 11 insertions, 35 deletions

diff --git a/src/cli/stasis/stasis_main.c b/src/cli/stasis/stasis_main.c
index 58bbfa2..d152278 100644
--- a/src/cli/stasis/stasis_main.c
+++ b/src/cli/stasis/stasis_main.c
@@ -493,40 +493,6 @@ static void transfer_artifacts(struct Delivery *ctx) {
     }
 }
 
-static char *center_text(const char *s, const size_t maxwidth) {
-    if (maxwidth < 2) {
-        SYSERROR("%s", "maximum width must be greater than 0");
-        return NULL;
-    }
-
-    if (maxwidth % 2 != 0) {
-        SYSERROR("maximum width (%zu) must be even", maxwidth);
-        return NULL;
-    }
-
-    const size_t s_len = strlen(s);
-    if (s_len + 1 > maxwidth) {
-        SYSERROR("length of input string (%zu) exceeds maximum width (%zu)", s_len, maxwidth);
-        return NULL;
-    }
-
-    char *result = calloc(maxwidth + 1, sizeof(*result));
-    if (!result) {
-        SYSERROR("%s", "unable to allocate bytes for centered text string");
-        return NULL;
-    }
-    const size_t middle = (maxwidth / 2) - s_len / 2;
-    size_t i = 0;
-    for (; i < middle; i++) {
-        result[i] = ' ';
-    }
-    result[i++] = 'v';
-    strncpy(&result[i], s, maxwidth - middle - 1);
-    result[maxwidth] = '\0';
-
-    return result;
-}
-
 int main(int argc, char *argv[]) {
     struct Delivery ctx;
     struct Process proc = {
diff --git a/src/cli/stasis_indexer/stasis_indexer_main.c b/src/cli/stasis_indexer/stasis_indexer_main.c
index f42e686..0ef2a5f 100644
--- a/src/cli/stasis_indexer/stasis_indexer_main.c
+++ b/src/cli/stasis_indexer/stasis_indexer_main.c
@@ -303,7 +303,17 @@ int main(const int argc, char *argv[]) {
 
     struct Delivery ctx = {0};
 
-    printf(BANNER, VERSION, AUTHOR);
+    char *version = center_text(VERSION, strlen(STASIS_BANNER_HEADER));
+    if (!version) {
+        SYSERROR("%s", "version too long?");
+        version = strdup(VERSION);
+        if (!version) {
+            SYSERROR("%s", "unable to allocate uncentered fallback version string");
+            exit(1);
+        }
+    }
+    printf(BANNER, version, AUTHOR);
+    guard_free(version);
 
     indexer_init_dirs(&ctx, workdir);