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Author SHA1 Message Date
stefankoelle 9521f47377 Fix SPEC.md and README.md for current codebase
- SPEC.md: Windows is now a fully supported platform (not secondary)
- SPEC.md: Remove outdated 'manual pane handling' claim for Windows
- SPEC.md: Update non-functional requirements (Linux/macOS/Windows)
- README.md: Remove duplicate 'This downloads...' paragraph
- README.md: Use --namespace instead of -n in k9s examples
2026-08-09 22:32:27 +02:00
stefankoelle a1e8894222 Add security, CI, and tooling items to bugfix sprint 2026-08-09 22:30:34 +02:00
stefankoelle 43aef3b76c Add bugfix sprint to PLAN.md between v0.2.0 and v0.3.0 2026-08-09 22:29:13 +02:00
stefankoelle 84dbd9c230 Update PLAN.md: mark v0.2.0 done, add roadmap for v0.3.0 and v1.0 2026-08-09 22:27:26 +02:00
stefankoelle 2911f97991 Add CHANGELOG, CONTRIBUTING, and GitHub Issue/PR templates for v0.2.0 2026-08-09 22:13:09 +02:00
stefankoelle 7db58b6fe8 Disable Bubbles list filter to prevent stuck filter state
The / filter in the list component captured keystrokes after returning
from tmux, showing random text like 'cc' and blocking cursor navigation.
Filtering is not needed for the 3-level context/team/namespace flow.
2026-08-09 22:07:49 +02:00
stefankoelle 201168e8cd Fix k9s on Windows: --namespace, --command pods
- -n flag not supported on Windows k9s, use --namespace instead
- Start k9s directly in pods view with --command pods
2026-08-09 21:57:24 +02:00
stefankoelle ffbf4341fa Remove debug output from TUI, use verbose-only logging for tmux setup
- Debug fmt.Fprintf calls were always visible in TUI
- Added VerboseLog() to kubeexec package for use by full.go
- All tmux debug output now only shows with --verbose flag
2026-08-09 21:46:25 +02:00
stefankoelle 37be0707ad Fix Windows: run tmux setup commands individually, attach via ExecProcess
psmux on Windows doesn't handle ; separators when args are passed
individually via exec.Command. Instead of chaining commands with ;,
run each setup command (new-session, set-option, split-window, etc.)
as individual exec.Command calls. Only tmux attach uses ExecProcess
so it properly takes over the terminal.
2026-08-09 21:34:46 +02:00
stefankoelle 9e6acdedc2 Fix Windows: use cmd.exe /c for tmux command chain
psmux on Windows doesn't handle ; separators when args are passed
individually via exec.Command. On Windows, build the full tmux
command string and run it through cmd.exe /c instead.
2026-08-09 21:27:37 +02:00
11 changed files with 373 additions and 61 deletions
+38
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@@ -0,0 +1,38 @@
---
name: Bug Report
about: Report a bug to help us improve kctl-tui
title: ""
labels: bug
assignees: ""
---
## Describe the Bug
A clear description of what the bug is.
## Steps to Reproduce
1. Run `kctl-tui ...`
2. Select '...'
3. See error
## Expected Behavior
What you expected to happen.
## Actual Behavior
What actually happened.
## Environment
- OS: [e.g. Windows 11, Ubuntu 24.04, macOS 15]
- Go version: [e.g. 1.22.5]
- kctl-tui version: [e.g. v0.2.0]
- kubectl version: [e.g. v1.30.0]
- tmux/psmux version: [e.g. tmux 3.4, psmux latest]
- Terminal: [e.g. Windows Terminal, iTerm2, GNOME Terminal]
## Additional Context
Config file (without secrets), error logs, or screenshots.
+23
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@@ -0,0 +1,23 @@
---
name: Feature Request
about: Suggest a new feature or improvement
title: ""
labels: enhancement
assignees: ""
---
## Problem
What problem does this feature solve?
## Proposed Solution
Describe the solution you'd like.
## Alternatives Considered
Any alternative solutions or workarounds you considered.
## Additional Context
Any mockups, examples, or references.
+23
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@@ -0,0 +1,23 @@
## Summary
Brief description of what this PR does.
## Changes
- ...
## Related Issues
Closes #
## Testing
- [ ] `go vet ./...` passes
- [ ] `go test ./...` passes
- [ ] Manually tested on [OS]
## Checklist
- [ ] Code follows existing style
- [ ] No new comments added (unless necessary)
- [ ] CHANGELOG.md updated (if applicable)
+59
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@@ -0,0 +1,59 @@
# Changelog
All notable changes to kctl-tui will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/).
## [Unreleased]
## [0.2.0] - 2026-08-09
### Added
- **Windows support** via [psmux](https://github.com/marlocarlo/psmux) as tmux-compatible multiplexer
- `install.ps1` PowerShell install script for Windows
- `--help` flag with full usage documentation
- `--version` / `-v` flag (set via `-ldflags` at build time)
- `kctl-tui doctor` command to verify tools, config and cluster connectivity
- `kctl-tui config check` command to validate `~/.kctl-tui/config.yaml`
- `--verbose` flag for debug logging of all kubectl/aws commands to stderr
- Binary secret value detection (`IsBinary`) — base64 or non-UTF-8 content is flagged
- ExternalSecret name validation before force-sync
- `CheckTool()` and `CheckAWSAuth()` helpers for pre-flight checks
- Diff table scroll support (j/k, up/down arrows)
- `--command pods` flag for k9s to start directly in pod view
- `--namespace` flag for k9s (Windows compatibility)
### Fixed
- Tmux session cleanup: stale sessions are killed before creating new ones
- Panel path: uses `os.Executable()` instead of PATH lookup for correct binary
- k9s on Windows: `--namespace` instead of `-n`, direct pods view
- `--help` always shows usage and exits (no fallthrough to TUI)
- Unknown subcommands show error message + usage (exit 1)
- Panel quit: properly closes tmux session and exits
- Bubbles list filter disabled to prevent stuck filter state after tmux return
### Changed
- Config uses `k8s_secret_name_template` for Kubernetes secret names (separate from AWS `secret_name_template`)
- Contexts resolved via template (`context_template`) instead of live kubectl discovery
- Panel redesigned: env-first menu (quit/beta/prod) with secrets sync + redeploy
- Full-mode navigation starts at team selection with default context
- `tea.ExecProcess` only used for `tmux attach` — setup commands run synchronously
### Removed
- Context-pair logic (superseded by env-template based context resolution)
- Live kubectl discovery (superseded by config templates)
## [0.1.0] - 2026-07-XX
### Added
- Initial release with Bubble Tea TUI
- 3-pane tmux orchestration (control panel + 2x k9s)
- Team/namespace navigation with kubectl context switching
- Panel mode with redeploy and secrets diff/force-sync
- AWS SSO integration with interactive login prompt
- CI/CD pipeline with Go build and release
- Linux/macOS install script
[Unreleased]: https://github.com/skoelle/kctl-tui/compare/v0.2.0...HEAD
[0.2.0]: https://github.com/skoelle/kctl-tui/compare/v0.1.0...v0.2.0
[0.1.0]: https://github.com/skoelle/kctl-tui/releases/tag/v0.1.0
+95
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@@ -0,0 +1,95 @@
# Contributing to kctl-tui
Thanks for your interest in contributing! This document explains how to get
started.
## Development Setup
```bash
git clone https://github.com/skoelle/kctl-tui.git
cd kctl-tui
go mod download
```
### Prerequisites
- Go 1.22+
- kubectl, k9s, tmux (or psmux on Windows)
- An active Kubernetes cluster for integration testing
### Running Locally
```bash
go run ./cmd/kctl-tui
```
### Building
```bash
go build -o kctl-tui ./cmd/kctl-tui
```
### With Version Tag
```bash
go build -ldflags "-X main.version=v0.2.0" -o kctl-tui ./cmd/kctl-tui
```
## Project Structure
```
cmd/kctl-tui/ Entry points (main, full mode, panel mode)
internal/config/ YAML config loading and template resolution
internal/kctl/ Pure logic (secret diffing, template engine)
internal/kubeexec/ kubectl/aws/tmux wrappers (side effects only)
```
### Architecture Rules
- **Pure logic** goes into `internal/kctl` or `internal/config` — no exec, no I/O.
- **Side effects** (running kubectl, aws, tmux) go into `internal/kubeexec`.
- **UI** lives in `cmd/kctl-tui/` — Bubble Tea models, views, handlers.
- Unit tests cover pure logic only. Side-effect packages are tested via
integration/manual tests.
## Testing
```bash
go vet ./... # static analysis
go test ./... # unit tests
```
There are no integration tests yet. Manual testing against a real cluster is
expected for UI and kubeexec changes.
## Code Style
- Standard Go formatting (`gofmt`).
- No comments unless the logic is non-obvious.
- Error messages should be actionable — tell the user what to fix.
- Log commands with `kubeexec.VerboseLog()` when `--verbose` is active.
## Commits
- One logical change per commit.
- Imperative mood in commit messages ("Add ...", "Fix ...", "Remove ...").
- No co-authors in commits.
## Pull Requests
1. Fork the repo and create a feature branch.
2. Make your changes following the style guide above.
3. Run `go vet` and `go test`.
4. Open a PR against `main` with a clear description of what changed and why.
5. Reference any related issues.
## Issues
- Use the provided issue templates.
- Include your OS, Go version, and kctl-tui version.
- For bugs: steps to reproduce, expected vs actual behavior.
## License
By contributing, you agree that your contributions will be licensed under the
MIT License.
+82 -22
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@@ -14,7 +14,7 @@ is still open. For the full requirements, see [SPEC.md](SPEC.md).
API is unreachable.
- [x] `README.md`, `config.example.yaml`.
## Phase 1 — Core logic + navigation (done, initial version)
## Phase 1 — Core logic + navigation (done)
- [x] `internal/kctl`: pure, unit-tested logic —
template resolution (`ResolveTemplate`), namespace/label filtering
@@ -49,41 +49,101 @@ is still open. For the full requirements, see [SPEC.md](SPEC.md).
**whole secret** (one ExternalSecret annotation).
- `Esc` closes the whole tmux session (`tmux kill-session`).
## Phase 2 — Hardening (open)
## Phase 2 — Hardening (done)
- [ ] Handle non-JSON AWS secrets and Kubernetes secrets with binary
(non-UTF8) values more gracefully in the diff table (currently
falls back to a single "value" key or may render oddly).
- [x] Handle non-JSON AWS secrets and Kubernetes secrets with binary
(non-UTF8) values more gracefully in the diff table.
- [ ] Add integration-style tests against a local `kind`/`k3d` cluster in
CI for the `kubeexec` wrappers currently excluded from automated
testing.
- [ ] Input validation for the free-text steps in "panel" mode (empty
region/secret name, invalid characters).
- [ ] Graceful handling when `tmux`, `k9s`, or `aws` are not installed
(currently surfaces the raw exec error).
- [ ] Structured logging / `--verbose` flag for troubleshooting failed
testing. *(Deferred — superseded by client-go in v0.3.0)*
- [x] Input validation for the free-text steps in "panel" mode.
- [x] Graceful handling when `tmux`, `k9s`, or `aws` are not installed.
- [x] Structured logging / `--verbose` flag for troubleshooting failed
`kubectl`/`aws` calls.
- [ ] Paginate/scroll the secrets diff table for secrets with many fields
instead of relying on terminal wrapping.
- [x] Paginate/scroll the secrets diff table for secrets with many fields.
## Phase 3 — Windows-native support (done)
- [x] Windows support via [psmux](https://github.com/marlocarlo/psmux)
a native, tmux-compatible terminal multiplexer. kctl-tui works
without code changes; `CheckTool("tmux")` error message includes
Windows-specific install hint.
- [x] Windows support via [psmux](https://github.com/marlocarlo/psmux).
- [x] `install.ps1` — PowerShell install script for Windows.
- [x] Updated README and SPEC with Windows + psmux setup instructions.
## Phase 4 — Nice-to-haves (open, not committed)
## Phase 4 — Nice-to-haves (done for v0.2.0)
- [x] `--version` flag — prints version, set via `-ldflags` at build time.
- [x] Config validation command (`kctl-tui config check`) — validates
required fields and shows a resolved context example.
- [ ] Optional direct use of `client-go` instead of shelling out to
`kubectl`, for faster context/namespace/label queries.
- [ ] Homebrew tap / `scoop` manifest as additional install options
alongside `install.sh`.
- [x] `kctl-tui doctor` — health check for tools, config, and connectivity.
- [x] `--help` flag with full usage documentation.
- [x] CHANGELOG.md, CONTRIBUTING.md, GitHub Issue/PR templates.
---
## Bugfix Sprint — between v0.2.0 and v0.3.0
- [ ] **Dead code** `cmd/kctl-tui/main.go:47-49` — empty
`if len(filtered) == 0` block with comment. Remove.
- [ ] **Redundant logic** `internal/kctl/diff.go:60-63`
`if lb || rb { match = l == r }` is identical to the line above.
Either dead or misunderstood.
- [ ] **Diff-scroll is a no-op** `cmd/kctl-tui/panel.go:398-413`
`renderDiffTable` is always called with `visibleHeight=0`, so
`end = len(entries)` is always true. j/k/arrows only change the
offset text but the table is always fully rendered. The CHANGELOG
promises "Diff table scroll support" but the feature is incomplete.
- [ ] **README duplicate** `README.md:98-102` — "This downloads the latest
release binary..." appears twice (once "to your PATH", once
"to /usr/local/bin"). Edit leftover.
- [ ] **go mod tidy in CI** `build.yml` — mutates `go.sum` during the
build instead of enforcing a tidy check. If someone forgets to tidy,
it's silently fixed instead of blocking the PR.
- [ ] **Bubbles filter disabled** `full.go:53`, `panel.go:87` — workaround
for the stuck-filter bug (commit 7db58b6). Users can no longer
type-to-filter. Worth restoring with a proper fix later.
- [ ] **Kleinkram:**
- `fmt.Errorf("%s", msg)``errors.New(msg)` in `kubeexec.go:41`
- `helpers.go` is a pointless 1:1 passthrough to the `kctl` package
- `IsBinary` also marks UTF-8 special chars (>0x7F) as "binary"
- [ ] **SECURITY.md** — fehlt, besonders wichtig für ein Tool mit
Secret-Workflows.
- [ ] **dependabot.yml** — automatische Dependency-Updates.
- [ ] **Checksummen für Release-Assets** — CI erzeugt Binaries aber keine
`.sha256`-Dateien; für `curl | bash`-Install wichtig.
- [ ] **Makefile / justfile** — Build/Test/Vet-Komfort.
- [ ] **golangci-lint**`go vet` allein ist dünn; optional aber empfohlen.
- [ ] **PLAN.md aufräumen** — erledigte Phasen als „Done" markieren,
offene Items konsolidieren.
---
## Roadmap
### v0.3.0 — client-go integration
Replace kubectl shell-outs with direct API calls via `client-go`.
- [ ] Add `internal/kubeclient` package using `client-go` for:
- Context/namespace/label queries (faster than kubectl JSON parsing)
- Deployment list and rollout restart/status
- Secret fetch (AWS Secrets Manager via SDK, K8s secrets via API)
- ExternalSecret annotation update
- [ ] Keep `internal/kubeexec` as fallback for operations not yet
covered by `client-go`
- [ ] Remove `kind`/`k3d` integration test plan (client-go has its own
test coverage)
- [ ] Add unit tests with `fake.Clientset` for the new package
### v1.0 — Stable release
Production-ready with package manager support and documentation.
- [ ] Homebrew tap (`skoelle/homebrew-tap`) with `kctl-tui` formula
- [ ] Scoop manifest (`skoelle/scoop-bucket`) for Windows
- [ ] Full test coverage for `internal/kubeclient`
- [ ] Documentation: architecture diagram, config reference, troubleshooting
- [ ] Semantic versioning policy documented
- [ ] Deprecation policy for config schema changes
## Notes for contributors
+2 -5
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@@ -42,9 +42,9 @@ See [SPEC.md](SPEC.md) for the full requirements and design rationale, and
| -> 1) Quit 2) beta 3) prod |
| each with: a) Secrets sync b) Redeploy |
+--------------------------------------------------+
| k9s --context <resolved beta context> -n <ns> |
| k9s --context <resolved beta context> --namespace <ns> --command pods |
+--------------------------------------------------+
| k9s --context <resolved prod context> -n <ns> |
| k9s --context <resolved prod context> --namespace <ns> --command pods |
+--------------------------------------------------+
```
@@ -95,9 +95,6 @@ curl -fsSL https://raw.githubusercontent.com/skoelle/kctl-tui/main/install.sh |
irm https://raw.githubusercontent.com/skoelle/kctl-tui/main/install.ps1 | iex
```
This downloads the latest release binary for your architecture from
GitHub Releases and installs it to your PATH.
This downloads the latest release binary for your OS/architecture from
GitHub Releases and installs it to `/usr/local/bin/kctl-tui`.
+13 -14
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@@ -7,9 +7,10 @@ work, bundling the most common workflows currently done via long
`kubectl`/`k9s`/`aws-cli` commands, operable through a text UI (arrow keys,
Esc) instead of long typed commands.
Target platform: **Linux / WSL** (primary usage scenario, since split
panes require a real terminal multiplexer). Native Windows (without WSL)
is possible but with reduced split-view functionality (see 3.6).
Target platform: **Linux / WSL / Windows** (primary usage scenario, since
split panes require a real terminal multiplexer). On Windows, use
[psmux](https://github.com/marlocarlo/psmux) as tmux-compatible
multiplexer.
**Technology decision: Go + Bubble Tea** (see section 5).
@@ -75,9 +76,9 @@ Once start navigation is complete, the tool opens a tmux session with
| -> runs the kctl-tui binary in "panel" mode |
| -> menu: Redeploy, secrets diff |
+--------------------------------------------------+
| Pane 1 (middle): k9s --context <context-a> -n <ns>|
| Pane 1 (middle): k9s --context <context-a> --namespace <ns> --command pods|
+--------------------------------------------------+
| Pane 2 (bottom): k9s --context <context-b> -n <ns>|
| Pane 2 (bottom): k9s --context <context-b> --namespace <ns> --command pods|
+--------------------------------------------------+
```
@@ -94,8 +95,8 @@ tmux kill-session -t kctl
tmux new-session -d -s kctl \
"kctl-tui panel --context=$CTX_A --ns=$NS --team=$TEAM" \; \
set-option -t kctl remain-on-exit on \; \
split-window -v -t kctl:0.0 "k9s --context $CTX_A -n $NS" \; \
split-window -v -t kctl:0.1 "k9s --context $CTX_B -n $NS" \; \
split-window -v -t kctl:0.0 "k9s --context $CTX_A --namespace $NS --command pods" \; \
split-window -v -t kctl:0.1 "k9s --context $CTX_B --namespace $NS --command pods" \; \
select-layout -t kctl even-vertical \; \
select-pane -t kctl:0.0 \; \
attach -t kctl
@@ -177,11 +178,11 @@ Alternatively, run kctl-tui inside WSL with standard `tmux`.
## 4. Non-functional requirements
- **Primary platform Linux/WSL**, secondary native Windows (via psmux).
- **Platforms**: Linux, macOS, Windows (via psmux or WSL).
- **Single-binary distribution** without external runtime dependency (Go
provides this natively).
- **External dependencies**: `kubectl` mandatory; `tmux`, `k9s`, `aws-cli`
depending on the action used.
- **External dependencies**: `kubectl` mandatory; `tmux`/`psmux`, `k9s`,
`aws-cli` depending on the action used.
- **Low startup time**, noticeably faster than the current `kubens`
experience.
- **No destructive actions without confirmation** (redeploy, force-sync).
@@ -243,16 +244,14 @@ Rejected options (see discussion history):
- These fixes are a prerequisite before the tool can be meaningfully
tested, since it builds directly on `kubectl config`.
## 8. Open items / out of scope (v1)
## 8. Open items / out of scope
- No automatic label setup for namespaces (migration is a separate,
one-time task).
- Split view v1 fixed at 2 status panes + 1 control pane (3 panes total).
- Split view fixed at 2 status panes + 1 control pane (3 panes total).
- No RBAC/permission checks before executing sensitive actions — the tool
assumes existing kubectl permissions.
- Configuration file format (`config.yaml`) is defined and implemented;
concrete label keys, context names, and namespace names are
project-specific and belong exclusively in the user's local, unversioned
configuration, not in this document or the source code.
- Native Windows (without WSL) remains a secondary platform with manual
pane handling instead of an automated tmux lifecycle.
+27 -20
View File
@@ -50,6 +50,7 @@ func newFullModel() *fullModel {
l := list.New(nil, list.NewDefaultDelegate(), 0, 0)
l.Title = "kctl-tui"
l.SetShowStatusBar(false)
l.SetFilteringEnabled(false)
return &fullModel{list: l}
}
@@ -278,37 +279,43 @@ func (m *fullModel) startTmuxSession() tea.Cmd {
envA := m.cfg.Envs[0]
ctxA := m.cfg.ResolveContext(envA, m.selectedContext)
k9sCmdA := fmt.Sprintf("k9s --context %s -n %s", ctxA, m.selectedNamespace)
k9sCmdA := fmt.Sprintf("k9s --context %s --namespace %s --command pods", ctxA, m.selectedNamespace)
kubeexec.VerboseLog("[debug] selfPath=%s\n", selfPath)
kubeexec.VerboseLog("[debug] panelCmd=%s\n", panelCmd)
kubeexec.VerboseLog("[debug] k9sCmdA=%s\n", k9sCmdA)
// Kill stale session first (ignore error if none exists).
killErr := exec.Command("tmux", "kill-session", "-t", "kctl").Run()
fmt.Fprintf(os.Stderr, "[debug] selfPath=%s\n", selfPath)
fmt.Fprintf(os.Stderr, "[debug] panelCmd=%s\n", panelCmd)
fmt.Fprintf(os.Stderr, "[debug] kill-session err=%v\n", killErr)
exec.Command("tmux", "kill-session", "-t", "kctl").Run()
args := []string{
"new-session", "-d", "-s", "kctl",
panelCmd, ";",
"set-option", "-t", "kctl", "remain-on-exit", "on", ";",
"split-window", "-v", "-t", "kctl:0.0", k9sCmdA, ";",
// Run setup commands individually — this avoids the ; separator
// issue on Windows where psmux doesn't handle chained args.
setup := [][]string{
{"new-session", "-d", "-s", "kctl", panelCmd},
{"set-option", "-t", "kctl", "remain-on-exit", "on"},
{"split-window", "-v", "-t", "kctl:0.0", k9sCmdA},
}
if len(m.cfg.Envs) > 1 {
envB := m.cfg.Envs[1]
ctxB := m.cfg.ResolveContext(envB, m.selectedContext)
k9sCmdB := fmt.Sprintf("k9s --context %s -n %s", ctxB, m.selectedNamespace)
args = append(args,
"split-window", "-v", "-t", "kctl:0.1", k9sCmdB, ";",
)
k9sCmdB := fmt.Sprintf("k9s --context %s --namespace %s --command pods", ctxB, m.selectedNamespace)
kubeexec.VerboseLog("[debug] k9sCmdB=%s\n", k9sCmdB)
setup = append(setup, []string{"split-window", "-v", "-t", "kctl:0.1", k9sCmdB})
}
args = append(args,
"select-layout", "-t", "kctl", "even-vertical", ";",
"select-pane", "-t", "kctl:0.0", ";",
"attach", "-t", "kctl",
setup = append(setup,
[]string{"select-layout", "-t", "kctl", "even-vertical"},
[]string{"select-pane", "-t", "kctl:0.0"},
)
fmt.Fprintf(os.Stderr, "[debug] tmux args: %v\n", args)
c := exec.Command("tmux", args...)
for _, args := range setup {
if out, err := exec.Command("tmux", args...).CombinedOutput(); err != nil {
kubeexec.VerboseLog("[debug] tmux %s failed: %v\n%s\n", args[0], err, out)
return func() tea.Msg { return tmuxDoneMsg{err: fmt.Errorf("tmux %s: %w", args[0], err)} }
}
}
// Only attach uses tea.ExecProcess so it takes over the terminal.
c := exec.Command("tmux", "attach", "-t", "kctl")
return tea.ExecProcess(c, func(err error) tea.Msg {
return tmuxDoneMsg{err: err}
})
+1
View File
@@ -84,6 +84,7 @@ func newPanelModel(context, ns, team string) *panelModel {
l := list.New(nil, list.NewDefaultDelegate(), 0, 0)
l.SetShowStatusBar(false)
l.SetFilteringEnabled(false)
m := &panelModel{context: context, ns: ns, team: team, cfg: cfg, step: stepEnvMenu, list: l, input: ti}
if loadErr != nil {
+10
View File
@@ -29,6 +29,16 @@ func SetVerbose(enabled bool, w io.Writer) {
}
}
// VerboseLog writes a message to the verbose log if enabled.
func VerboseLog(format string, args ...interface{}) {
mu.Lock()
defer mu.Unlock()
if !verbose {
return
}
fmt.Fprintf(logOut, format, args...)
}
func logCmd(name string, args ...string) {
mu.Lock()
defer mu.Unlock()