| 135212de Andy McCall ↶ |
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# Shell prompt integration |
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|
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`oxy prompt` prints one line about the current repository in a few |
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milliseconds and records nothing. Outside an Oxygen repository it prints |
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nothing and exits 1, so it is safe to call from any prompt. |
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|
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``` |
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$ oxy prompt |
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main 658990aa*+2 |
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``` |
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|
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That is bookmark, working-copy change id, `*` when the working copy has |
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uncommitted changes, `!` when the state has conflicts, and `+n`/`-n` for |
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changes ahead of and behind `origin`. The default format is `%b %c%d%x%A%D`; |
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`--format` takes any string with these placeholders: |
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|
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|
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| `%b` | bookmark | |
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| `%c` | working-copy ChangeId prefix | |
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| `%h` | number of heads | |
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| `%d` | `*` when dirty | |
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| `%x` | `!` when the base state has conflicts | |
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| `%A` / `%D` | `+n` ahead / `-n` behind origin, empty when zero or unknown | |
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| `%a` / `%B` | raw ahead / behind counts | |
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| `%%` | a percent sign | |
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|
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Dirtiness is decided from a manifest written at every snapshot and checkout: |
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files are compared by size and modification time first and by content hash |
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only when those differ, so the cost is one directory walk. |
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|
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## bash and oh-my-bash |
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|
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Add to `~/.bashrc` (or to a custom oh-my-bash theme in |
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`~/.oh-my-bash/custom/themes/<name>/<name>.theme.sh`): |
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|
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```bash |
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# Oxygen repository info for the prompt; silent outside a repository. |
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oxy_prompt_info() { |
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local info |
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info=$(oxy prompt --format '%b %c%d%x%A%D' 2>/dev/null) || return |
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local color='\[\e[36m\]' reset='\[\e[0m\]' warn='\[\e[33m\]' |
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case "$info" in |
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*'*'*|*'!'*) printf ' %b(%s)%b' "$warn" "$info" "$reset" ;; |
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*) printf ' %b(%s)%b' "$color" "$info" "$reset" ;; |
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esac |
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} |
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``` |
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|
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Then reference it from `PS1`, next to your Git info: |
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|
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```bash |
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PS1='\u@\h \w$(git_prompt_info 2>/dev/null)$(oxy_prompt_info)\$ ' |
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``` |
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|
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With oh-my-bash, most themes build the prompt in a function such as |
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`_omb_theme_PROMPT_COMMAND`; append `$(oxy_prompt_info)` to the `PS1` |
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assignment there, or copy the theme into `custom/themes` and edit that copy |
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so updates do not overwrite it. |
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|
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## zsh |
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|
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```zsh |
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oxy_prompt_info() { |
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local info |
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info=$(oxy prompt 2>/dev/null) || return |
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print -n " %F{cyan}($info)%f" |
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} |
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setopt PROMPT_SUBST |
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PROMPT='%n@%m %~$(oxy_prompt_info) %# ' |
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``` |
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|
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## Notes |
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|
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- The dirty and conflict markers come from the manifest written by the last |
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`oxy status`, commit, or checkout; in a repository that has never been |
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snapshotted they are blank until the first `oxy status`. |
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|
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- The counts against `origin` use the tracking state from the last |
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`oxy fetch`, `pull`, or `push`; the prompt never contacts the network. |
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- `oxy prompt` uses plain text by default so shells can colour it; colour is |
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added in the shell function, not by oxy. |