code shorten

Author: OurCodeBase

src/db.sh

@@ -27,19 +27,12 @@ _db.iskey(){
 #   file (str) > takes file path.
 db.read(){
   # checking args given or not.
-  if [[ ! ${#} -eq 2 ]]; then
-    echo "error: 'missing args'";
-    return 1;
-  fi
-  if _db.iskey "${1}" "${2}"; then
-    local dbValue;
-    dbValue="$(grep "${1}: " "${2}")";
-    echo "${dbValue}" | awk -F': ' '{sub(/^[^:]*: /, ""); print}';
-    return 0;
-  else
-    echo "error: ${1}: 'key not exists'";
-    return 1;
-  fi
+  [[ ${#} -eq 2 ]] ||
+  { echo "error: 'missing args'" && return 1; };
+  _db.iskey "${1}" "${2}" ||
+  { echo "error: ${1}: 'key not exists'" && return 1; };
+  local dbValue="$(grep "${1}: " "${2}")";
+  echo "${dbValue}" | awk -F': ' '{sub(/^[^:]*: /, ""); print}';
 }
 
 # db.create(key,value,file)
@@ -50,17 +43,11 @@ db.read(){
 #   file (str) > takes file path.
 db.create(){
   # checking args given or not.
-  if [[ ! ${#} -eq 3 ]]; then
-    echo "error: 'missing args'";
-    return 1;
-  fi
-  if _db.iskey "${1}" "${3}"; then
-    echo "error: ${1}: 'key already exist'";
-    return 1;
-  else
-    echo -ne "\n${1}: ${2}" >> "${3}";
-    return 0;
-  fi
+  [[ ${#} -eq 3 ]] ||
+  { echo "error: 'missing args'" && return 1; };
+  _db.iskey "${1}" "${3}" &&
+  { echo "error: ${1}: 'key already exists'" && return 1; };
+  echo -ne "\n${1}: ${2}" >> "${3}";
 }
 
 # db.update(key,value,file)
@@ -71,33 +58,26 @@ db.create(){
 #   file (str) > takes file path.
 db.update(){
   # checking args given or not.
-  if [[ ! ${#} -eq 3 ]]; then
-    echo "error: 'missing args'";
-    return 1;
-  fi
-  if _db.iskey "${1}" "${3}"; then
-    # taking key arg.
-    local dbKey="${1}";
-    # taking update value of given key.
-    local dbUpdatedValue="${2}";
-    # taking db file path.
-    local dbFile="${3}";
-    # getting old value of given key.
-    local dbValue;
-    dbValue="$(db.read "${dbKey}" "${dbFile}")";
-    # concating key and old value.
-    local dbKeyValuePair="${dbKey}: ${dbValue}";
-    # getting position of concated line in file.
-    local dbKeyValuePairPos;
-    dbKeyValuePairPos="$(grep -n "${dbKeyValuePair}" "${dbFile}" | cut -d: -f1 | head -n 1;)";
-    # replacing value from old to new.
-    local dbUpdatedKeyValuePair="${dbKeyValuePair/${dbValue}/"${dbUpdatedValue}"}";
-    # placing updated value to position.
-    sed -i "${dbKeyValuePairPos}c\\${dbUpdatedKeyValuePair}" "${dbFile}";
-  else
-    echo "error: ${1}: 'key not exists'";
-    return 1;
-  fi
+  [[ ${#} -eq 3 ]] ||
+  { echo "error: 'missing args'" && return 1; };
+  _db.iskey "${1}" "${3}" ||
+  { echo "error: ${1}: 'key not exists'" && return 1; };
+  # taking key arg.
+  local dbKey="${1}";
+  # taking update value of given key.
+  local dbUpdatedValue="${2}";
+  # taking db file path.
+  local dbFile="${3}";
+  # getting old value of given key.
+  local dbValue="$(db.read "${dbKey}" "${dbFile}")";
+  # concating key and old value.
+  local dbKeyValuePair="${dbKey}: ${dbValue}";
+  # getting position of concated line in file.
+  local dbKeyValuePairPos="$(grep -n "${dbKeyValuePair}" "${dbFile}" | cut -d: -f1 | head -n 1;)";
+  # replacing value from old to new.
+  local dbUpdatedKeyValuePair="${dbKeyValuePair/${dbValue}/"${dbUpdatedValue}"}";
+  # placing updated value to position.
+  sed -i "${dbKeyValuePairPos}c\\${dbUpdatedKeyValuePair}" "${dbFile}";
 }
 
 # db.delete(key,file)
@@ -107,18 +87,12 @@ db.update(){
 #   file (str) > takes file path.
 db.delete(){
   # checking args given or not.
-  if [[ ! ${#} -eq 2 ]]; then
-    echo "error: 'missing args'";
-    return 1;
-  fi
+  [[ ${#} -eq 2 ]] ||
+  { echo "error: 'missing args'" && return 1; };
+  _db.iskey "${1}" "${2}" ||
+  { echo "error: ${1}: 'key not exists'" && return 1; };
   local dbKey="${1}: ";
   local dbFile="${2}";
-  if _db.iskey "${1}" "${2}"; then
-    local dbKeyPos;
-    dbKeyPos="$(grep -n "${dbKey}" "${dbFile}" | cut -d: -f1 | head -n 1;)";
-    sed -i "${dbKeyPos}d" "${dbFile}";
-  else
-    echo "error: ${1}: 'key not exists'";
-    return 1;
-  fi
+  local dbKeyPos="$(grep -n "${dbKey}" "${dbFile}" | cut -d: -f1 | head -n 1;)";
+  sed -i "${dbKeyPos}d" "${dbFile}";
 }

src/file.sh

@@ -192,10 +192,8 @@ file.append.hori(){
   # takes file as arg.
   local ARGFile="${3}";
   # checking args given or not.
-  if [[ ! ${#} -eq 3 ]]; then
-    echo "error: 'missing args'";
-    return 1;
-  fi
+  [[ ${#} -eq 3 ]] ||
+  { echo "error: 'missing args'" && return 1; };
   # reading line from given position.
   local Vir="$(file.readline "${Pos}" "${ARGFile}")";
   # concating string to it.
@@ -220,10 +218,8 @@ file.append.vert(){
   # takes file as arg.
   local ARGFile="${3}";
   # checking args given or not.
-  if [[ ! ${#} -eq 3 ]]; then
-    echo "error: 'missing args'";
-    return 1;
-  fi
+  [[ ${#} -eq 3 ]] ||
+  { echo "error: 'missing args'" && return 1; };
   # reduce one from variable.
   local Pos="$(( Pos - 1 ))";
   # do operation.

src/package.sh

@@ -30,10 +30,8 @@ source "${Dir}"/os.sh
 #   pkg.size(install,package) > Gives you package installed size.
 pkg.size(){
   # checking args given or not.
-  if [[ ! ${#} -eq 2 ]]; then
-    echo "error: 'missing args'";
-    return 1;
-  fi
+  [[ ${#} -eq 2 ]] ||
+  { echo "error: 'missing args'" && return 1; };
   case "${1}" in
     'dnload') local SizeSource="$(apt show "${2}" 2> /dev/null | grep 'Download-Size:')";;
     'install') local SizeSource="$(apt show "${2}" 2> /dev/null | grep 'Installed-Size:')";;