add search field by grep

Author: imankarimi

log_reader/admin.py

@@ -20,7 +20,8 @@ def get_urls(self):
 
     def changelist_view(self, request, extra_context=None):
         filename = request.GET.get('file_name', settings.LOG_READER_DEFAULT_FILE)
-        is_valid, file_contents = read_file_lines(file_name=filename)
+        search = request.GET.get('q', None) or None
+        is_valid, file_contents = read_file_lines(file_name=filename, search=search)
         if not is_valid:
             self.message_user(request, file_contents, level=messages.ERROR)
         log_files = get_log_files(settings.LOG_READER_DIR_PATH)

log_reader/static/log_reader/css/log_reader.css

@@ -5,4 +5,7 @@
     color: #ffffff;
     cursor: pointer;
     border: 1px solid #d0d0d0;
+    position: fixed;
+    right: 315px;
+    top: 156px;
 }

log_reader/templates/log_reader/admin/change_list.html

@@ -30,6 +30,13 @@ <h1>File Logs</h1>
                 <div class="changelist-form-container">{% endif %}
             {% if file_contents %}
                 <div id="toolbar">
+                    <form id="changelist-search" method="get">
+                        <div><!-- DIV needed for valid HTML -->
+                            <label for="searchbar"><img src="{% static "admin/img/search.svg" %}" alt="Search"></label>
+                            <input type="text" size="40" name="q" value="{{ request.GET.q }}" id="searchbar" autofocus="">
+                            <input type="submit" value="Search">
+                        </div>
+                    </form>
                     <button id="DownloadLogFile" type="submit">Download</button>
                 </div>
             {% endif %}

log_reader/utils.py

@@ -24,18 +24,27 @@ def get_log_files(directory):
     return []
 
 
-def read_file_lines(file_name):
+def read_file_lines(file_name, search=None):
     if file_name not in get_log_files(settings.LOG_READER_DIR_PATH):
         return False, _("%s file, not found. Please try again." % file_name)
 
     try:
         file_path = '%s/%s' % (settings.LOG_READER_DIR_PATH, file_name)
-        result = subprocess.run(
-            ['tail', '-%s' % settings.LOG_READER_MAX_READ_LINES, file_path],
-            stdout=PIPE,
-            stderr=PIPE,
-            encoding="utf8",
-        )
+
+        if search:
+            result = subprocess.run(
+                ['grep', '-m %s' % settings.LOG_READER_MAX_READ_LINES, search, file_path],
+                stdout=PIPE,
+                stderr=PIPE,
+                encoding="utf8",
+            )
+        else:
+            result = subprocess.run(
+                ['tail', '-%s' % settings.LOG_READER_MAX_READ_LINES, file_path],
+                stdout=PIPE,
+                stderr=PIPE,
+                encoding="utf8",
+            )
         content = repr(result.stdout) if result.stdout else None
     except Exception as e:
         return False, str(e)

setup.py

@@ -9,7 +9,7 @@
 
 setup(
     name='django-log-reader',
-    version='1.1.6',
+    version='1.1.7',
     zip_safe=False,
     packages=find_packages(),
     include_package_data=True,