cpp-build README

This extension can manage IO files for cpp builds. It was intended to work with Pbinfo informatics problems.

Features

Build and run helper

• create IO files for active cpp file
• set up run layout (IO files stacked up on the right side)
• run the configured build and run task
• clean up workspace

Pbinfo problem preview

• fetch problem info and show it in the right panel

Shortcuts

• F9 - build and run
• F10 - run
• ctr+ESC - clean up workspace
• alt+P - pbinfo problem preview

Requirements

• a folder named build/ in the root workspace
• a cpp build task named "Build current file" and two run tasks named "Build and run current file" and "Run current file"
  the source file for the build task should be the current open one and the output should have the same name and be located in the build/ directory
  the run file should run the file with the same name as the active one from the build/ directory with the working directory set to that directory
• debugger configured to run the executable from build/
• vscode cpp include paths configured
• gcc and gdb in PATH
• the in and out file names should be the name of the current file plus the .in or .out extensions

Examples

Some example configurations. These should be put in the .vscode directory in the root directory of the workspace

Tasks configuration

.vscode/tasks.json

{
    "version": "2.0.0",
    "tasks": [
        {
            "label": "Build current file",
            "type": "shell",
            "command": "g++",
            "args": [
                "-g",
                "-Wall",
                "-o${workspaceRoot}/build/${fileBasenameNoExtension}",
                "${fileDirname}/${fileBasenameNoExtension}.cpp"
            ],
            "group": {
                "kind": "build",
                "isDefault": true
            },
            "problemMatcher": [
                "$gcc"
            ]
        },
        {
            "label": "Build and run current file",
            "type": "shell",
            "command": "${workspaceRoot}/build/${fileBasenameNoExtension}",
            "options": {
                "cwd": "${workspaceRoot}/build/"
            },
            "dependsOn": "Build current file"
        },
        {
            "label": "Run current file",
            "type": "shell",
            "command": "${workspaceRoot}/build/${fileBasenameNoExtension}",
            "options": {
                "cwd": "${workspaceRoot}/build/"
            }
        }
    ]
}

Debugger configuration

.vscode/launch.json

{
    "version": "0.2.0",
    "configurations": [
        {
            "name": "(gdb) Launch",
            "type": "cppdbg",
            "request": "launch",
            "program": "${workspaceRoot}/build/${fileBasenameNoExtension}",
            "args": [],
            "stopAtEntry": false,
            "cwd": "${workspaceRoot}/build/",
            "environment": [],
            "externalConsole": false,
            "MIMode": "gdb",
            "setupCommands": [
                {
                    "description": "Enable pretty-printing for gdb",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true
                }
            ],
            "preLaunchTask": "Build current file"
        }
    ]
}

Helper snippets

.vscode/cpp.code-snippets

{
	"Insert fin": {
		"scope": "cpp",
		"prefix": "fin",
		"body": "ifstream fin(\"$TM_FILENAME_BASE.in\");\n"
	},
	"Insert fout": {
		"scope": "cpp",
		"prefix": "fout",
		"body": "ofstream fout(\"$TM_FILENAME_BASE.out\");\n"
	},
	"Insert pbinfo reference": {
		"scope": "cpp",
		"prefix": "pbinfo",
		"body": "// #$1 - $3 https://www.pbinfo.ro/?pagina=probleme&id=$1$0"
	}
}