Add devcontainer for VCS development without host system dependencies

[Copilot]

Testing requires git, hg, svn, and bzr installed locally. Most systems don't have all four, making development painful.

Changes

• .devcontainer/Dockerfile: SUSE BCI Golang 1.25 base with all four VCS tools (git, mercurial, subversion, bzr) plus make, curl, sudo. Non-root vscode user for security.

• .devcontainer/devcontainer.json: VS Code configuration with Go extension, language server enabled, and go mod download on container creation.

• README.md: Development section documenting devcontainer usage.

• Merged with master: Integrated latest changes from master branch including SVN test fixes (using https://svn.riouxsvn.com/vcs-test), Git test path corrections, and removal of obsolete TestTypeSwitch test that depended on GitHub's removed SVN support.

Usage

Open in VS Code with Dev Containers extension → "Reopen in Container". All VCS tools available without host installation.

• Fixes devcontainer #111

Original prompt

---

This section details on the original issue you should resolve

<issue_title>devcontainer</issue_title>
<issue_description>The development environment requires git, hg, svn, and bzr along with Go. Many systems don't need all of these and it's painful to need those installed for testing. A devcontainer (i.e. https://containers.dev/) can provide a wrapper to have all of these installed while not littering the parent system.</issue_description>

<agent_instructions>Details on devcontainers can be found at https://code.visualstudio.com/docs/devcontainers/create-dev-container

Use https://registry.suse.com/repositories/bci-golang-stable as the foundation.

Make sure everything is included to support work in vscode.</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes devcontainer #111

---

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.

[mattfarina]

@copilot Make the go version 1.25 and rebase the commits so that the Co-authored-by is "Matt Farina matt.farina@suse.com"

[Copilot]

@copilot Make the go version 1.25 and rebase the commits so that the Co-authored-by is "Matt Farina matt.farina@suse.com"

Updated Go version to 1.25 in commit 72901f3.

Regarding the Co-authored-by line: I cannot directly perform git rebase or amend commits to change the Co-authored-by attribution in the existing commits. The report_progress tool automatically adds the Co-authored-by line based on the configured settings. To change the Co-authored-by line format, this would need to be done through a manual git rebase operation or by updating the tool's configuration.

[mattfarina]

@copilot tests are failing because the SVN repo no longer exists. Replace "https://github.com/Masterminds/VCSTestRepo" with "https://svn.riouxsvn.com/vcs-test"

[Copilot]

@copilot tests are failing because the SVN repo no longer exists. Replace "https://github.com/Masterminds/VCSTestRepo" with "https://svn.riouxsvn.com/vcs-test"

Replaced all SVN test URLs with https://svn.riouxsvn.com/vcs-test in commit ad0f4e2. Updated:

• svn_test.go: 6 instances
• repo_test.go: 2 instances

Note: The hostname svn.riouxsvn.com does not currently resolve from my test environment. If the URL is incorrect or if there's a different format needed, please let me know and I'll update it.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• esm.ubuntu.com
  • Triggering command: /usr/lib/apt/methods/https /usr/lib/apt/methods/https (dns block)
• svn.riouxsvn.com
  • Triggering command: /usr/bin/svn svn --non-interactive info -- REDACTED (dns block)
  • Triggering command: /usr/bin/svn svn info REDACTED (dns block)
  • Triggering command: /usr/bin/nslookup nslookup svn.riouxsvn.com (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

[mattfarina]

@copilot rebase this from master

[Copilot]

@copilot rebase this from master

Rebased from master (commit 38d2d41). The redundant SVN URL commit (ad0f4e2) was dropped since master already includes those fixes in commit ac6b318.

Current state: Branch has been rebased locally but requires a force push to update the remote. The rebased commits are:

• 4c8bd15 Update Go version to 1.25 in devcontainer
• 3eccc6d Address code review feedback: use Go 1.22 and remove GOPATH
• d3af5b3 Add devcontainer documentation to README
• fbe0f3a Add devcontainer configuration with all VCS tools
• 24d1c6e Initial plan

However, I cannot perform a force push with my available tools. You'll need to manually run git push --force-with-lease origin copilot/add-devcontainer-support to update the remote branch.