From e4fe1c57405c9fbb9638dbd36ad73aadeb8b1f1a Mon Sep 17 00:00:00 2001
From: Nathan Fisher <nfisher.sr@gmail.com>
Date: Mon, 12 Feb 2024 19:05:52 -0500
Subject: [PATCH] Add `parseGitRev` function

---
 semver.c | 33 ++++++++++++++++++++++++++-------
 1 file changed, 26 insertions(+), 7 deletions(-)

diff --git a/semver.c b/semver.c
index 6bd24db..e09450a 100644
--- a/semver.c
+++ b/semver.c
@@ -106,7 +106,7 @@ int parseArch(char *s) {
         return -1;
 }
 
-uint16_t parseNumNonZero(char *vp, long *out) {
+uint16_t parseU12NonZero(char *vp, long *out) {
     long val;
     char *ep;
 
@@ -114,7 +114,7 @@ uint16_t parseNumNonZero(char *vp, long *out) {
         *out = 0;
     }
     val = strtol(vp, &ep, 10);
-    if (vp != ep && ep == NULL && val <= U12_MAX) {
+    if (vp != ep && ep == NULL && val <= U12_MAX && val > 0) {
         *out = val;
     } else {
         return 1;
@@ -123,8 +123,27 @@ uint16_t parseNumNonZero(char *vp, long *out) {
 }
 
 int parseGitRev(char *vp, GitRevision *git) {
-    // todo
-    return 1;
+    char    hash[7];
+    int64_t ts;
+    char   *hash_str, *ts_str, *ep;
+    int i;
+
+    hash_str = strtok(vp, ".");
+    if (hash_str == NULL) return 1;
+    if (strnlen(hash_str, 8) != 7) return 2;
+    for (i = 0; i < 7; i++) {
+        hash[i] = hash_str[i];
+    }
+    ts_str = strtok(NULL, ".");
+    if (ts_str == NULL) return 1;
+    ts = strtoll(ts_str, &ep, 10);
+    if (ts_str == ep || ep != NULL) return 3;
+    if (strtok(NULL, ".") != NULL) return 4;
+    for (i = 0; i < 7; i++) {
+        git->hash[i] = hash[i];
+    }
+    dateTimeFromTimestampParts(ts, 0, &git->dt);
+    return 0;
 }
 
 int parsePreRelease(PreRelease *pr, char *s) {
@@ -139,17 +158,17 @@ int parsePreRelease(PreRelease *pr, char *s) {
     if (strncasecmp(s, "alpha", 5) == 0) {
         tag = Alpha;
         vp = s + 5;
-        if (parseNumNonZero(vp, &val) != 0)
+        if (parseU12NonZero(vp, &val) != 0)
             return  1;
     } else if (strncasecmp(s, "beta", 4) == 0) {
         tag = Beta;
         vp = s + 4;
-        if (parseNumNonZero(vp, &val) != 0)
+        if (parseU12NonZero(vp, &val) != 0)
             return 1;
     } else if (strncasecmp(s, "rc", 2) == 0) {
         tag = ReleaseCandidate;
         vp = s + 2;
-        if (parseNumNonZero(vp, &val) != 0)
+        if (parseU12NonZero(vp, &val) != 0)
             return 1;
     } else if (strncasecmp(s, "git_", 4) == 0) {
         tag = GitRev;