feat(cmd): add --version flag - #49
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`--version` errored with `unknown flag` — the binary had no build-time version to print. Set cobra's rootCmd.Version (which registers --version/-v for free) from a package var, injected at release time via goreleaser ldflags. Dev builds report "dev". Matches the pattern shipped in withings-export-cli#44. New minor flag, no behavior change to any existing command. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_012MvqxTC64Z9EEDewCUbNNo
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Problem
crono-export --versionerrors withunknown flag: --version. The binary carried no build-time version string, so there was nothing to print.Change
rootCmd.Versionfrom a package varversion(default"dev"). Cobra registers--version(and-v) automatically onceVersionis non-empty — no custom subcommand.ldflags:-X …/cmd.version=v{{ .Version }}.Same pattern as quantcli/withings-export-cli#44, which is already released (v1.2.0).
Test
Manual, both paths (a build-tag injection isn't worth a unit test that would just exercise cobra):
go vet ./.../go test ./...green.🤖 Generated with Claude Code
https://claude.ai/code/session_012MvqxTC64Z9EEDewCUbNNo