Add cURL export functionality with custom icon and extensible architecture

data/icons/hicolor/symbolic/apps/export-symbolic.svg

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg" height="16px" viewBox="0 0 16 16" width="16px"><g fill="#222222"><path d="m 4 5.992188 h 1 c 0.257812 0 0.527344 -0.128907 0.71875 -0.3125 l 1.28125 -1.28125 v 6.59375 h 2 v -6.59375 l 1.28125 1.28125 c 0.191406 0.183593 0.410156 0.3125 0.71875 0.3125 h 1 v -1 c 0 -0.308594 -0.089844 -0.550782 -0.28125 -0.75 l -3.71875 -3.65625 l -3.71875 3.65625 c -0.191406 0.199218 -0.28125 0.441406 -0.28125 0.75 z m 0 0"/><path d="m 4.039062 6.957031 c -1.664062 0 -3.03125 1.371094 -3.03125 3.035157 v 1.972656 c 0 1.664062 1.367188 3.035156 3.03125 3.035156 h 7.917969 c 1.664063 0 3.03125 -1.371094 3.03125 -3.035156 v -1.972656 c 0 -1.664063 -1.367187 -3.035157 -3.03125 -3.035157 h -0.957031 v 2 h 0.957031 c 0.589844 0 1.03125 0.445313 1.03125 1.035157 v 1.972656 c 0 0.589844 -0.441406 1.035156 -1.03125 1.035156 h -7.917969 c -0.589843 0 -1.03125 -0.445312 -1.03125 -1.035156 v -1.972656 c 0 -0.589844 0.441407 -1.035157 1.03125 -1.035157 h 0.960938 v -2 z m 0 0"/></g></svg>

data/icons/meson.build

@@ -11,3 +11,9 @@ install_data(
   symbolic_dir / ('@0@-symbolic.svg').format(application_id),
   install_dir: get_option('datadir') / 'icons' / symbolic_dir
 )
+
+# Install custom export icon
+install_data(
+  symbolic_dir / 'export-symbolic.svg',
+  install_dir: get_option('datadir') / 'icons' / symbolic_dir
+)

src/export-dialog.ui

@@ -0,0 +1,60 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <requires lib="gtk" version="4.0"/>
+  <requires lib="Adw" version="1.0"/>
+
+  <template class="ExportDialog" parent="AdwDialog">
+    <property name="title">Export Request</property>
+    <property name="content-width">600</property>
+    <property name="content-height">400</property>
+
+    <property name="child">
+      <object class="AdwToolbarView">
+        <child type="top">
+          <object class="AdwHeaderBar">
+            <property name="show-title">true</property>
+            <child type="end">
+              <object class="GtkButton" id="copy_button">
+                <property name="label">Copy</property>
+                <property name="tooltip-text">Copy to Clipboard</property>
+                <signal name="clicked" handler="on_copy_clicked"/>
+                <style>
+                  <class name="suggested-action"/>
+                </style>
+              </object>
+            </child>
+          </object>
+        </child>
+
+        <property name="content">
+          <object class="GtkBox">
+            <property name="orientation">vertical</property>
+            <property name="spacing">12</property>
+            <property name="margin-start">12</property>
+            <property name="margin-end">12</property>
+            <property name="margin-top">12</property>
+            <property name="margin-bottom">12</property>
+
+            <child>
+              <object class="GtkScrolledWindow">
+                <property name="vexpand">true</property>
+                <property name="hexpand">true</property>
+                <child>
+                  <object class="GtkTextView" id="export_textview">
+                    <property name="editable">false</property>
+                    <property name="monospace">true</property>
+                    <property name="wrap-mode">none</property>
+                    <property name="left-margin">12</property>
+                    <property name="right-margin">12</property>
+                    <property name="top-margin">12</property>
+                    <property name="bottom-margin">12</property>
+                  </object>
+                </child>
+              </object>
+            </child>
+          </object>
+        </property>
+      </object>
+    </property>
+  </template>
+</interface>

src/export_dialog.py

@@ -0,0 +1,90 @@
+# export_dialog.py
+#
+# Copyright 2025 Pavel Baksy
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from gi.repository import Adw, Gtk, Gdk, GLib
+import logging
+
+logger = logging.getLogger(__name__)
+
+
+@Gtk.Template(resource_path='/cz/bugsy/roster/export-dialog.ui')
+class ExportDialog(Adw.Dialog):
+    """Dialog for exporting HTTP requests in various formats."""
+
+    __gtype_name__ = 'ExportDialog'
+
+    export_textview = Gtk.Template.Child()
+    copy_button = Gtk.Template.Child()
+
+    def __init__(self, request, **kwargs):
+        """
+        Initialize export dialog.
+
+        Args:
+            request: HttpRequest to export (should have variables substituted)
+        """
+        super().__init__(**kwargs)
+        self.request = request
+        self._populate_export()
+
+    def _populate_export(self):
+        """Generate and display the export content."""
+        try:
+            # Get cURL exporter
+            from .exporters import ExporterRegistry
+            exporter = ExporterRegistry.get_exporter('curl')
+
+            # Generate cURL command
+            curl_command = exporter.export(self.request)
+
+            # Display in textview
+            buffer = self.export_textview.get_buffer()
+            buffer.set_text(curl_command)
+
+        except Exception as e:
+            logger.error(f"Export generation failed: {e}")
+            buffer = self.export_textview.get_buffer()
+            buffer.set_text(f"Error generating export: {str(e)}")
+
+    @Gtk.Template.Callback()
+    def on_copy_clicked(self, button):
+        """Copy export content to clipboard."""
+        # Get text from buffer
+        buffer = self.export_textview.get_buffer()
+        start = buffer.get_start_iter()
+        end = buffer.get_end_iter()
+        text = buffer.get_text(start, end, False)
+
+        # Copy to clipboard using Gdk.Clipboard API
+        display = Gdk.Display.get_default()
+        clipboard = display.get_clipboard()
+        clipboard.set(text)
+
+        # Visual feedback: temporarily change button label
+        original_label = button.get_label()
+        button.set_label("Copied!")
+
+        # Reset after 2 seconds
+        def reset_label():
+            button.set_label(original_label)
+            return False  # Don't repeat
+
+        GLib.timeout_add(2000, reset_label)
+
+        logger.debug("Export copied to clipboard")

src/exporters/__init__.py

@@ -0,0 +1,24 @@
+# exporters package
+#
+# Copyright 2025 Pavel Baksy
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from .registry import ExporterRegistry
+from .base_exporter import BaseExporter
+from .curl_exporter import CurlExporter
+
+__all__ = ['ExporterRegistry', 'BaseExporter', 'CurlExporter']

src/exporters/base_exporter.py

@@ -0,0 +1,50 @@
+# base_exporter.py
+#
+# Copyright 2025 Pavel Baksy
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from abc import ABC, abstractmethod
+from ..models import HttpRequest
+
+
+class BaseExporter(ABC):
+    """Abstract base class for request exporters."""
+
+    @abstractmethod
+    def export(self, request: HttpRequest) -> str:
+        """
+        Export HTTP request to target format.
+
+        Args:
+            request: HttpRequest with method, url, headers, body
+
+        Returns:
+            Formatted export string
+        """
+        pass
+
+    @property
+    @abstractmethod
+    def format_name(self) -> str:
+        """Human-readable format name (e.g., 'cURL', 'Insomnia')."""
+        pass
+
+    @property
+    @abstractmethod
+    def file_extension(self) -> str:
+        """File extension for export (e.g., 'sh', 'json')."""
+        pass

src/exporters/curl_exporter.py

@@ -0,0 +1,70 @@
+# curl_exporter.py
+#
+# Copyright 2025 Pavel Baksy
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+import shlex
+from .base_exporter import BaseExporter
+from ..models import HttpRequest
+
+
+class CurlExporter(BaseExporter):
+    """Export HTTP requests as cURL commands."""
+
+    @property
+    def format_name(self) -> str:
+        return "cURL"
+
+    @property
+    def file_extension(self) -> str:
+        return "sh"
+
+    def export(self, request: HttpRequest) -> str:
+        """
+        Generate cURL command with proper shell escaping.
+
+        Format:
+        curl -X POST \
+          'https://api.example.com/endpoint' \
+          -H 'Content-Type: application/json' \
+          --data '{"key": "value"}'
+        """
+        parts = ["curl"]
+
+        # Add HTTP method (skip if GET - it's default)
+        if request.method != "GET":
+            parts.append(f"-X {request.method}")
+
+        # Add URL (always quoted for safety)
+        parts.append(shlex.quote(request.url))
+
+        # Add headers
+        for key, value in request.headers.items():
+            header_str = f"{key}: {value}"
+            parts.append(f"-H {shlex.quote(header_str)}")
+
+        # Add body for POST/PUT/PATCH/DELETE methods
+        if request.body and request.method in ["POST", "PUT", "PATCH", "DELETE"]:
+            parts.append(f"--data {shlex.quote(request.body)}")
+
+        # Format as multiline with backslash continuations
+        return " \\\n  ".join(parts)
+
+
+# Auto-register on import
+from .registry import ExporterRegistry
+ExporterRegistry.register('curl', CurlExporter)

src/exporters/registry.py

@@ -0,0 +1,46 @@
+# registry.py
+#
+# Copyright 2025 Pavel Baksy
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from typing import Dict, List, Tuple, Type
+from .base_exporter import BaseExporter
+
+
+class ExporterRegistry:
+    """Registry for managing export formats."""
+
+    _exporters: Dict[str, Type[BaseExporter]] = {}
+
+    @classmethod
+    def register(cls, format_id: str, exporter_class: Type[BaseExporter]):
+        """Register an exporter class."""
+        cls._exporters[format_id] = exporter_class
+
+    @classmethod
+    def get_exporter(cls, format_id: str) -> BaseExporter:
+        """Get exporter instance by format ID."""
+        exporter_class = cls._exporters.get(format_id)
+        if not exporter_class:
+            raise ValueError(f"Unknown export format: {format_id}")
+        return exporter_class()
+
+    @classmethod
+    def get_all_formats(cls) -> List[Tuple[str, str]]:
+        """Get all registered formats as [(id, name), ...]."""
+        return [(format_id, cls._exporters[format_id]().format_name)
+                for format_id in cls._exporters.keys()]

src/main-window.ui

@@ -32,8 +32,9 @@
                 <child type="start">
                   <object class="GtkLabel">
                     <property name="label">Projects</property>
+                    <property name="margin-start">6</property>
                     <style>
-                      <class name="heading"/>
+                      <class name="title"/>
                     </style>
                   </object>
                 </child>
@@ -96,6 +97,17 @@
                   </object>
                 </child>
 
+                <child type="start">
+                  <object class="GtkButton" id="export_request_button">
+                    <property name="icon-name">export-symbolic</property>
+                    <property name="tooltip-text">Export as cURL</property>
+                    <signal name="clicked" handler="on_export_request_clicked"/>
+                    <style>
+                      <class name="flat"/>
+                    </style>
+                  </object>
+                </child>
+
                 <!-- Right side buttons -->
                 <child type="end">
                   <object class="GtkBox">

src/meson.build

@@ -39,6 +39,7 @@ roster_sources = [
   'constants.py',
   'icon_picker_dialog.py',
   'environments_dialog.py',
+  'export_dialog.py',
   'preferences_dialog.py',
   'request_tab_widget.py',
   'script_executor.py',
@@ -46,6 +47,16 @@ roster_sources = [
 
 install_data(roster_sources, install_dir: moduledir)
 
+# Install exporters submodule
+exporters_sources = [
+  'exporters/__init__.py',
+  'exporters/base_exporter.py',
+  'exporters/curl_exporter.py',
+  'exporters/registry.py',
+]
+
+install_data(exporters_sources, install_dir: moduledir / 'exporters')
+
 # Install widgets submodule
 widgets_sources = [
   'widgets/__init__.py',

src/roster.gresource.xml

@@ -6,6 +6,8 @@
     <file preprocess="xml-stripblanks">preferences-dialog.ui</file>
     <file preprocess="xml-stripblanks">icon-picker-dialog.ui</file>
     <file preprocess="xml-stripblanks">environments-dialog.ui</file>
+    <file preprocess="xml-stripblanks">export-dialog.ui</file>
+    <file alias="icons/export-symbolic.svg">../data/icons/hicolor/symbolic/apps/export-symbolic.svg</file>
     <file preprocess="xml-stripblanks">widgets/header-row.ui</file>
     <file preprocess="xml-stripblanks">widgets/history-item.ui</file>
     <file preprocess="xml-stripblanks">widgets/project-item.ui</file>

src/window.py

@@ -55,6 +55,7 @@ class RosterWindow(Adw.ApplicationWindow):
 
     # Top bar widgets
     save_request_button = Gtk.Template.Child()
+    export_request_button = Gtk.Template.Child()
     new_request_button = Gtk.Template.Child()
     tab_view = Gtk.Template.Child()
     tab_bar = Gtk.Template.Child()
@@ -336,7 +337,7 @@ class RosterWindow(Adw.ApplicationWindow):
         """Create a new tab with RequestTabWidget."""
         # Create tab in tab manager
         if not request:
-            request = HttpRequest(method="GET", url="", headers={}, body="", syntax="RAW")
+            request = HttpRequest(method="GET", url="", headers=HttpRequest.default_headers(), body="", syntax="RAW")
 
         tab = self.tab_manager.create_tab(name, request, saved_request_id, response,
                                          project_id, selected_environment_id, scripts)
@@ -1078,6 +1079,47 @@ class RosterWindow(Adw.ApplicationWindow):
         dialog.connect("response", on_response)
         dialog.present(self)
 
+    @Gtk.Template.Callback()
+    def on_export_request_clicked(self, button):
+        """Handle Export button click - export request as cURL command."""
+        # Get current tab
+        page = self.tab_view.get_selected_page()
+        if not page:
+            self._show_toast("No active request")
+            return
+
+        widget = self.page_to_widget.get(page)
+        if not widget:
+            self._show_toast("No active request")
+            return
+
+        # Get request from widget (raw with {{variables}})
+        request = widget.get_request()
+
+        # Validate URL
+        if not request.url.strip():
+            self._show_toast("Cannot export: URL is empty")
+            return
+
+        # Apply variable substitution if environment is selected
+        substituted_request = request
+        if widget.selected_environment_id:
+            env = widget.get_selected_environment()
+            if env:
+                from .variable_substitution import VariableSubstitution
+                substituted_request, undefined = VariableSubstitution.substitute_request(request, env)
+
+                # Warn about undefined variables
+                if undefined:
+                    logger.warning(f"Undefined variables in export: {', '.join(undefined)}")
+                    # Show warning toast but continue with export
+                    self._show_toast(f"Warning: {len(undefined)} undefined variable(s)")
+
+        # Show export dialog with substituted request
+        from .export_dialog import ExportDialog
+        dialog = ExportDialog(substituted_request)
+        dialog.present(self)
+
     def _mark_tab_as_saved(self, saved_request_id, name, request, scripts=None):
         """Mark the current tab as saved (clear modified flag)."""
         page = self.tab_view.get_selected_page()