feat(tools): #466 delta (git-delta) opt-in installer - #501
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- scripts/linux/tools/delta.sh: apt-first (Ubuntu 22.04+), tarball fallback for older/non-apt Linux; brew for macOS. Version-aware idempotent install. apply_delta_git_config() is separately-testable via BASH_SOURCE guard. - scripts/windows/tools/delta.ps1: winget (dandavison.delta), scoop fallback. Invoke-DeltaGitConfig() separately-testable function. - scripts/windows/setup.ps1: delta wired into ToolRegistry only (NOT DefaultTools) -- opt-in, selectable via -Only 'delta'. - .tool-versions: pin delta 0.19.2 (verified latest stable, 2026-03-28). - tests/test_delta_installer.sh + tests/test_delta_installer_pwsh.ps1: parity test pair -- opt-in discovery, git-config isolation (GIT_CONFIG_GLOBAL), idempotency. RED confirmed pre-impl; GREEN 4/4 pwsh post-impl. git config applied: core.pager=delta, interactive.diffFilter='delta --color-only', delta.navigate=true, delta.dark=true (light-mode override documented in comment), merge.conflictStyle=zdiff3. Closes #466 Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
- Rename Invoke-DeltaGitConfig -> Set-DeltaGitConfig (spec-consistency; approved PS verb). Add [CmdletBinding(SupportsShouldProcess)] to silence PSUseShouldProcessForStateChangingFunctions (0 issues on delta.ps1). - Add trailing LF to scripts/linux/tools/delta.sh and tests/test_delta_installer.sh (POSIX text-file requirement). PSScriptAnalyzer (delta.ps1): 0 issues. PSScriptAnalyzer (CI paths setup.ps1 x2): 0 issues. Parity suite: 4/4 pwsh PASS. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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* feat(tools): #466 delta (git-delta) opt-in installer - scripts/linux/tools/delta.sh: apt-first (Ubuntu 22.04+), tarball fallback for older/non-apt Linux; brew for macOS. Version-aware idempotent install. apply_delta_git_config() is separately-testable via BASH_SOURCE guard. - scripts/windows/tools/delta.ps1: winget (dandavison.delta), scoop fallback. Invoke-DeltaGitConfig() separately-testable function. - scripts/windows/setup.ps1: delta wired into ToolRegistry only (NOT DefaultTools) -- opt-in, selectable via -Only 'delta'. - .tool-versions: pin delta 0.19.2 (verified latest stable, 2026-03-28). - tests/test_delta_installer.sh + tests/test_delta_installer_pwsh.ps1: parity test pair -- opt-in discovery, git-config isolation (GIT_CONFIG_GLOBAL), idempotency. RED confirmed pre-impl; GREEN 4/4 pwsh post-impl. git config applied: core.pager=delta, interactive.diffFilter='delta --color-only', delta.navigate=true, delta.dark=true (light-mode override documented in comment), merge.conflictStyle=zdiff3. Closes #466 Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> * refactor(tools): #466 rename Set-DeltaGitConfig + trailing newlines - Rename Invoke-DeltaGitConfig -> Set-DeltaGitConfig (spec-consistency; approved PS verb). Add [CmdletBinding(SupportsShouldProcess)] to silence PSUseShouldProcessForStateChangingFunctions (0 issues on delta.ps1). - Add trailing LF to scripts/linux/tools/delta.sh and tests/test_delta_installer.sh (POSIX text-file requirement). PSScriptAnalyzer (delta.ps1): 0 issues. PSScriptAnalyzer (CI paths setup.ps1 x2): 0 issues. Parity suite: 4/4 pwsh PASS. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> --------- Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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feat(tools): #466 delta (git-delta) opt-in installer
Closes #466
Files Added / Modified
scripts/linux/tools/delta.shscripts/windows/tools/delta.ps1dandavison.delta), scoop fallbackscripts/windows/setup.ps1.tool-versionsdelta 0.19.2tests/test_delta_installer.shtests/test_delta_installer_pwsh.ps1Opt-in Wiring
Delta is NOT added to
DEFAULT_TOOLS(Linux) or$DefaultTools(Windows).It is wired only into the Windows
$ToolRegistry(required for that platform'sexplicit-registry model). On Linux, directory auto-discovery picks it up.
Selectable via
--only=delta(Linux/macOS) or-Only 'delta'(Windows).Git Config Applied (idempotent)
Version Pinned
delta 0.19.2-- verified latest stable fromhttps://api.github.com/repos/dandavison/delta/releases/latest(published 2026-03-28).
Linux tarball asset naming confirmed:
delta-0.19.2-x86_64-unknown-linux-gnu.tar.gzdelta-0.19.2-aarch64-unknown-linux-gnu.tar.gzTests (TDD -- RED then GREEN)
RED (pre-implementation):
T_delta_in_listFAIL (delta.ps1 not registered)T_delta_gitconfig_isoFAIL (delta.ps1 not found)T_delta_gitconfig_idemFAIL (delta.ps1 not found)T_delta_not_defaultPASS (correctly opt-in even before implementation)GREEN (post-implementation):
tests cover the same 4 scenarios with GIT_CONFIG_GLOBAL isolation.
shellcheck: CLEAN (all SC2030/2031/2329 suppressions are intentional).
Existing test_setup_flags_pwsh.ps1: 36/36 PASS (no regressions).
PSScriptAnalyzer (CI paths: setup.ps1 + scripts/windows/setup.ps1): 0 issues.