From 0a785ccdb71ee823a8e84b69c8ae1da592741101 Mon Sep 17 00:00:00 2001
From: obarun <eric@obarun.org>
Date: Fri, 26 Apr 2019 14:48:59 +1100
Subject: [PATCH] split instance function
---
src/lib66/instance.c | 145 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 145 insertions(+)
create mode 100644 src/lib66/instance.c
diff --git a/src/lib66/instance.c b/src/lib66/instance.c
new file mode 100644
index 00000000..06f56e1f
--- /dev/null
+++ b/src/lib66/instance.c
@@ -0,0 +1,145 @@
+/*
+ * instance.c
+ *
+ * Copyright (c) 2018-2019 Eric Vidal <eric@obarun.org>
+ *
+ * All rights reserved.
+ *
+ * This file is part of Obarun. It is subject to the license terms in
+ * the LICENSE file found in the top-level directory of this
+ * distribution.
+ * This file may not be copied, modified, propagated, or distributed
+ * except according to the terms contained in the LICENSE file./
+ */
+
+#include <66/utils.h>
+
+#include <string.h>
+
+#include <oblibs/error2.h>
+#include <oblibs/files.h>
+#include <oblibs/string.h>
+#include <oblibs/stralist.h>
+#include <oblibs/directory.h>
+
+#include <skalibs/stralloc.h>
+#include <skalibs/djbunix.h>
+
+int insta_replace(stralloc *sa,char const *src,char const *cpy)
+{
+
+ int curr, count ;
+
+ if (!src || !*src) return 0;
+
+ size_t len = strlen(src) ;
+ size_t clen= strlen(cpy) ;
+
+ curr = count = 0 ;
+ for(int i = 0; (size_t)i < len;i++)
+ if (src[i] == '@')
+ count++ ;
+
+ size_t resultlen = len + (clen * count) ;
+ char result[resultlen + 1 ] ;
+
+ for(int i = 0; (size_t)i < len;i++)
+ {
+ if (src[i] == '@')
+ {
+
+ if (((size_t)i + 1) == len) break ;
+ if (src[i + 1] == 'I')
+ {
+ memcpy(result + curr,cpy,clen) ;
+ curr = curr + clen;
+ i = i + 2 ;
+ }
+ }
+ result[curr++] = src[i] ;
+
+ }
+ result[curr] = 0 ;
+
+ return stralloc_obreplace(sa,result) ;
+}
+
+/** instance -> 0, copy -> 1 */
+int insta_splitname(stralloc *sa,char const *name,int len,int what)
+{
+ char const *copy ;
+ size_t tlen = len + 1 ;
+
+ char template[tlen + 1] ;
+ memcpy(template,name,tlen) ;
+ template[tlen] = 0 ;
+
+ copy = name + tlen ;
+
+ if (!what)
+ return stralloc_obreplace(sa,template) ;
+ else
+ return stralloc_obreplace(sa,copy) ;
+}
+
+int insta_create(stralloc *sasv,stralloc *sv, char const *src, int len)
+{
+ char *fdtmp ;
+ char const *copy ;
+ size_t tlen = len + 1 ;
+
+ stralloc sa = STRALLOC_ZERO ;
+ stralloc tmp = STRALLOC_ZERO ;
+
+ char template[tlen + 1] ;
+ memcpy(template,sv->s,tlen) ;
+ template[tlen] = 0 ;
+
+ copy = sv->s + tlen ;
+
+ fdtmp = dir_create_tmp(&tmp,"/tmp",copy) ;
+ if(!fdtmp)
+ {
+ VERBO3 strerr_warnwu1x("create instance tmp dir") ;
+ return 0 ;
+ }
+
+ if (!file_readputsa(&sa,src,template)){
+ VERBO3 strerr_warnwu4sys("open: ",src,"/",template) ;
+ return 0 ;
+ }
+
+ if (!insta_replace(&sa,sa.s,copy)){
+ VERBO3 strerr_warnwu2x("replace instance character at: ",sa.s) ;
+ return 0 ;
+ }
+ /** remove the last \0 */
+ sa.len-- ;
+
+ if (!file_write_unsafe(tmp.s,copy,sa.s,sa.len)){
+ VERBO3 strerr_warnwu4sys("create instance service file: ",tmp.s,"/",copy) ;
+ return 0 ;
+ }
+
+ if (!read_svfile(sasv,copy,tmp.s)) return 0 ;
+
+ if (rm_rf(tmp.s) < 0){
+ VERBO3 strerr_warnwu2x("remove tmp directory: ",tmp.s) ;
+ return 0 ;
+ }
+
+ stralloc_free(&sa) ;
+ stralloc_free(&tmp) ;
+
+ return stralloc_obreplace(sv,copy) ;
+}
+
+int insta_check(char const *svname)
+{
+ int r ;
+
+ r = get_len_until(svname,'@') ;
+ if (r < 0) return -1 ;
+
+ return r ;
+}
--
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