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106 lines
4.7 KiB
106 lines
4.7 KiB
#!/hint/sh
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__resh_reload_shellrc() {
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source ~/.resh/shellrc
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printf '\n'
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printf '+--------------------------------------------------------------+\n'
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printf '| New version of RESH shell files was loaded in this terminal. |\n'
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printf '| This is an informative message - no action is necessary. |\n'
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printf '| Please restart this terminal if you encounter any issues. |\n'
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printf '+--------------------------------------------------------------+\n'
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printf '\n'
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}
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# BACKWARDS COMPATIBILITY NOTES:
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#
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# Stable names and options:
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# * `resh-collect -version` / `resh-postcollect -version` is used to detect version mismatch.
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# => The go-like/short `-version` option needs to exist for new resh-(post)collect commands in all future version.
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# => Prefer using go-like/short `-version` option so that we don't have more options to support indefinitely.
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# * `__resh_preexec <CMDLINE>` with `__RESH_NO_RELOAD=1` is called on version mismatch.
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# => The `__resh_preexec` function needs to exist in all future versions.
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# => Make sure that `__RESH_NO_RELOAD` behavior is not broken in any future version.
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# => Prefer only testing `__RESH_NO_RELOAD` for emptyness instead of specific value
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# Other:
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# - Return status code of `resh-collect` and `resh-postcollect` commands from `__resh_preexec` and `__resh_precmd` respectively.
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# - Even nested calls of `__resh_preexec` should propagate the status.
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# (pre)collect
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# Backwards compatibilty: Please see notes above before making any changes here.
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__resh_preexec() {
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# $1 is command line
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# $2 can be --no-reload opt
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# Backwards compatibity: Do not change -version opt.
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# It is called by new shell files to detect version mismatch.
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if [ "$(resh-collect -version)" != "$__RESH_VERSION" ] && [ -z "${__RESH_NO_RELOAD-}" ]; then
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# Reload shell files and restart __resh_preexec - i.e. the full command will be recorded only with a slight delay.
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# This should happens in every already open terminal after resh update.
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# If `$2` is non-empty we play it safe, don't reload, and leave it up to resh-collect to error because of `--required-version` option.
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# This behavior gives user and error instead of handling things silently and risking infinite recursion.
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__resh_reload_shellrc
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# Rerun self but prevent another reload. Extra protection against infinite recursion.
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__RESH_NO_RELOAD=1 __resh_preexec "$@"
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return $?
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fi
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__RESH_COLLECT=1
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__RESH_RECORD_ID=$(resh-generate-uuid)
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# TODO: do this in resh-collect
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# shellcheck disable=2155
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local git_remote="$(git remote get-url origin 2>/dev/null)"
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# TODO: do this in resh-collect
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__RESH_RT_BEFORE=$(resh-get-epochtime)
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resh-collect -requireVersion "$__RESH_VERSION" \
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--git-remote "$git_remote" \
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--home "$HOME" \
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--pwd "$PWD" \
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--record-id "$__RESH_RECORD_ID" \
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--session-id "$__RESH_SESSION_ID" \
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--session-pid "$$" \
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--shell "$__RESH_SHELL" \
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--shlvl "$SHLVL" \
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--time "$__RESH_RT_BEFORE" \
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--cmd-line "$1"
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return $?
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}
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# postcollect
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# Backwards compatibilty: Please see notes above before making any changes here.
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__resh_precmd() {
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# Get status first before it gets overriden by another command.
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local exit_code=$?
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# Don't do anything if __resh_preexec was not called.
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# There are situations (in bash) where no command was submitted but __resh_precmd gets called anyway.
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[ -n "${__RESH_COLLECT-}" ] || return
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if [ "$(resh-postcollect -version)" != "$__RESH_VERSION" ]; then
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# Reload shell files and return - i.e. skip recording part2 for this command.
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# We don't call __resh_precmd because the new __resh_preexec might not be backwards compatible with variables set by old __resh_preexec.
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# This should happen only in the one terminal where resh update was executed.
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# And the resh-daemon was likely restarted so we likely don't even have the matching part1 of the comand in the resh-daemon memory.
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__resh_reload_shellrc
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return
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fi
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unset __RESH_COLLECT
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# do this in resh-postcollect
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# shellcheck disable=2155
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local rt_after=$(resh-get-epochtime)
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resh-postcollect -requireVersion "$__RESH_VERSION" \
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--exit-code "$exit_code" \
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--record-id "$__RESH_RECORD_ID" \
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--session-id "$__RESH_SESSION_ID" \
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--shlvl "$SHLVL" \
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--time-after "$rt_after" \
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--time-before "$__RESH_RT_BEFORE"
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return $?
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}
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# Backwards compatibilty: No restrictions. This is only used at the start of the session.
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__resh_session_init() {
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resh-session-init -requireVersion "$__RESH_VERSION" \
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--session-id "$__RESH_SESSION_ID" \
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--session-pid "$$"
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return $?
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} |