thodg/libgit2

diff --git a/deps/pcre/LICENCE b/deps/pcre/LICENCE
index 760a666..57a5448 100644
--- a/deps/pcre/LICENCE
+++ b/deps/pcre/LICENCE
@@ -25,7 +25,7 @@ Email domain:     cam.ac.uk
 University of Cambridge Computing Service,
 Cambridge, England.
 
-Copyright (c) 1997-2019 University of Cambridge
+Copyright (c) 1997-2020 University of Cambridge
 All rights reserved.
 
 
@@ -36,7 +36,7 @@ Written by:       Zoltan Herczeg
 Email local part: hzmester
 Email domain:     freemail.hu
 
-Copyright(c) 2010-2019 Zoltan Herczeg
+Copyright(c) 2010-2020 Zoltan Herczeg
 All rights reserved.
 
 
@@ -47,7 +47,7 @@ Written by:       Zoltan Herczeg
 Email local part: hzmester
 Email domain:     freemail.hu
 
-Copyright(c) 2009-2019 Zoltan Herczeg
+Copyright(c) 2009-2020 Zoltan Herczeg
 All rights reserved.
 
 
diff --git a/deps/pcre/pcre.h b/deps/pcre/pcre.h
index c6ca5ca..5b147b9 100644
--- a/deps/pcre/pcre.h
+++ b/deps/pcre/pcre.h
@@ -42,9 +42,9 @@ POSSIBILITY OF SUCH DAMAGE.
 /* The current PCRE version information. */
 
 #define PCRE_MAJOR          8
-#define PCRE_MINOR          43
+#define PCRE_MINOR          44
 #define PCRE_PRERELEASE
-#define PCRE_DATE           2019-02-23
+#define PCRE_DATE           2020-02-12
 
 #define PCRE_EXP_DECL  extern
 
diff --git a/deps/pcre/pcre_compile.c b/deps/pcre/pcre_compile.c
index a84e268..a3f20fd 100644
--- a/deps/pcre/pcre_compile.c
+++ b/deps/pcre/pcre_compile.c
@@ -6,7 +6,7 @@
 and semantics are as close as possible to those of the Perl 5 language.
 
                        Written by Philip Hazel
-           Copyright (c) 1997-2018 University of Cambridge
+           Copyright (c) 1997-2020 University of Cambridge
 
 -----------------------------------------------------------------------------
 Redistribution and use in source and binary forms, with or without
@@ -68,7 +68,7 @@ COMPILE_PCREx macro will already be appropriately set. */
 
 /* Macro for setting individual bits in class bitmaps. */
 
-#define SETBIT(a,b) a[(b)/8] |= (1 << ((b)&7))
+#define SETBIT(a,b) a[(b)/8] |= (1U << ((b)&7))
 
 /* Maximum length value to check against when making sure that the integer that
 holds the compiled pattern length does not overflow. We make it a bit less than
@@ -129,8 +129,8 @@ overrun before it actually does run off the end of the data block. */
 
 /* Private flags added to firstchar and reqchar. */
 
-#define REQ_CASELESS    (1 << 0)        /* Indicates caselessness */
-#define REQ_VARY        (1 << 1)        /* Reqchar followed non-literal item */
+#define REQ_CASELESS    (1U << 0)        /* Indicates caselessness */
+#define REQ_VARY        (1U << 1)        /* Reqchar followed non-literal item */
 /* Negative values for the firstchar and reqchar flags */
 #define REQ_UNSET       (-2)
 #define REQ_NONE        (-1)
@@ -3611,7 +3611,7 @@ for(;;)
       if (chr > 255) break;
       class_bitset = (pcre_uint8 *)
         ((list_ptr == list ? code : base_end) - list_ptr[2]);
-      if ((class_bitset[chr >> 3] & (1 << (chr & 7))) != 0) return FALSE;
+      if ((class_bitset[chr >> 3] & (1U << (chr & 7))) != 0) return FALSE;
       break;
 
 #if defined SUPPORT_UTF || !defined COMPILE_PCRE8
@@ -7135,17 +7135,19 @@ for (;; ptr++)
           int n = 0;
           ptr++;
           while(IS_DIGIT(*ptr))
+            {
             n = n * 10 + *ptr++ - CHAR_0;
+            if (n > 255)
+              {
+              *errorcodeptr = ERR38;
+              goto FAILED;
+              }
+            }
           if (*ptr != CHAR_RIGHT_PARENTHESIS)
             {
             *errorcodeptr = ERR39;
             goto FAILED;
             }
-          if (n > 255)
-            {
-            *errorcodeptr = ERR38;
-            goto FAILED;
-            }
           *code++ = n;
           PUT(code, 0, (int)(ptr - cd->start_pattern + 1)); /* Pattern offset */
           PUT(code, LINK_SIZE, 0);                          /* Default length */
@@ -7461,7 +7463,7 @@ for (;; ptr++)
               {
               open_capitem *oc;
               recno = GET2(slot, 0);
-              cd->backref_map |= (recno < 32)? (1 << recno) : 1;
+              cd->backref_map |= (recno < 32)? (1U << recno) : 1;
               if (recno > cd->top_backref) cd->top_backref = recno;
 
               /* Check to see if this back reference is recursive, that it, it
@@ -8072,7 +8074,7 @@ for (;; ptr++)
         item_hwm_offset = cd->hwm - cd->start_workspace;
         *code++ = ((options & PCRE_CASELESS) != 0)? OP_REFI : OP_REF;
         PUT2INC(code, 0, recno);
-        cd->backref_map |= (recno < 32)? (1 << recno) : 1;
+        cd->backref_map |= (recno < 32)? (1U << recno) : 1;
         if (recno > cd->top_backref) cd->top_backref = recno;
 
         /* Check to see if this back reference is recursive, that it, it
@@ -8685,7 +8687,7 @@ do {
             op == OP_SCBRA || op == OP_SCBRAPOS)
      {
      int n = GET2(scode, 1+LINK_SIZE);
-     int new_map = bracket_map | ((n < 32)? (1 << n) : 1);
+     int new_map = bracket_map | ((n < 32)? (1U << n) : 1);
      if (!is_anchored(scode, new_map, cd, atomcount)) return FALSE;
      }
 
@@ -8813,7 +8815,7 @@ do {
             op == OP_SCBRA || op == OP_SCBRAPOS)
      {
      int n = GET2(scode, 1+LINK_SIZE);
-     int new_map = bracket_map | ((n < 32)? (1 << n) : 1);
+     int new_map = bracket_map | ((n < 32)? (1U << n) : 1);
      if (!is_startline(scode, new_map, cd, atomcount, inassert)) return FALSE;
      }
 
diff --git a/deps/pcre/pcre_jit_compile.c b/deps/pcre/pcre_jit_compile.c
index bc5f9c0..4dcf8fc 100644
--- a/deps/pcre/pcre_jit_compile.c
+++ b/deps/pcre/pcre_jit_compile.c
@@ -3938,10 +3938,10 @@ static sljit_s32 character_to_int32(pcre_uchar chr)
 sljit_s32 value = (sljit_s32)chr;
 #if defined COMPILE_PCRE8
 #define SSE2_COMPARE_TYPE_INDEX 0
-return (value << 24) | (value << 16) | (value << 8) | value;
+return ((unsigned int)value << 24) | ((unsigned int)value << 16) | ((unsigned int)value << 8) | (unsigned int)value;
 #elif defined COMPILE_PCRE16
 #define SSE2_COMPARE_TYPE_INDEX 1
-return (value << 16) | value;
+return ((unsigned int)value << 16) | value;
 #elif defined COMPILE_PCRE32
 #define SSE2_COMPARE_TYPE_INDEX 2
 return value;
@@ -8507,7 +8507,7 @@ if (opcode == OP_ONCE)
   /* We temporarily encode the needs_control_head in the lowest bit.
      Note: on the target architectures of SLJIT the ((x << 1) >> 1) returns
      the same value for small signed numbers (including negative numbers). */
-  BACKTRACK_AS(bracket_backtrack)->u.framesize = (BACKTRACK_AS(bracket_backtrack)->u.framesize << 1) | (needs_control_head ? 1 : 0);
+  BACKTRACK_AS(bracket_backtrack)->u.framesize = ((unsigned int)BACKTRACK_AS(bracket_backtrack)->u.framesize << 1) | (needs_control_head ? 1 : 0);
   }
 return cc + repeat_length;
 }
diff --git a/deps/pcre/pcreposix.c b/deps/pcre/pcreposix.c
index 77dbddb..f9e423b 100644
--- a/deps/pcre/pcreposix.c
+++ b/deps/pcre/pcreposix.c
@@ -6,7 +6,7 @@
 and semantics are as close as possible to those of the Perl 5 language.
 
                        Written by Philip Hazel
-           Copyright (c) 1997-2018 University of Cambridge
+           Copyright (c) 1997-2020 University of Cambridge
 
 -----------------------------------------------------------------------------
 Redistribution and use in source and binary forms, with or without
@@ -287,6 +287,7 @@ if (preg->re_pcre == NULL)
 (void)pcre_fullinfo((const pcre *)preg->re_pcre, NULL, PCRE_INFO_CAPTURECOUNT,
   &re_nsub);
 preg->re_nsub = (size_t)re_nsub;
+preg->re_erroffset = (size_t)(-1);  /* No meaning after successful compile */
 return 0;
 }
 
@@ -324,8 +325,6 @@ if ((eflags & PCRE_REG_NOTBOL) != 0) options |= PCRE_NOTBOL;
 if ((eflags & PCRE_REG_NOTEOL) != 0) options |= PCRE_NOTEOL;
 if ((eflags & PCRE_REG_NOTEMPTY) != 0) options |= PCRE_NOTEMPTY;
 
-((pcre_regex_t *)preg)->re_erroffset = (size_t)(-1);  /* Only has meaning after compile */
-
 /* When no string data is being returned, or no vector has been passed in which
 to put it, ensure that nmatch is zero. Otherwise, ensure the vector for holding
 the return data is large enough. */