mirror of https://github.com/curusarn/resh
Simplify reloading of shell files and make it more robust Switch to proper GNU options Don't expose revision anywhere. Keep it in binaries. Keep -revision option. Drop revision from 'reshctl version' Simplify shell hooks code Don't instruct users to restart terminals - reloading should handle it fine now Add clean_build to makefilepull/184/head
Simon Let
3 years ago
parent
682b9599e8
commit
9b0c8b3149
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package opt |
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import ( |
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"os" |
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"github.com/curusarn/resh/internal/output" |
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) |
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// HandleVersionOpts reads the first option and handles it
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// This is a helper for resh-{collect,postcollect,session-init} commands
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func HandleVersionOpts(out *output.Output, args []string, version, commit string) []string { |
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if len(os.Args) == 0 { |
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return os.Args[1:] |
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} |
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// We use go-like options because of backwards compatibility.
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// Not ideal but we should support them because they have worked once
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// and adding "more correct" variants would mean supporting more variants.
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switch os.Args[1] { |
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case "-version": |
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out.Info(version) |
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os.Exit(0) |
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case "-revision": |
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out.Info(commit) |
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os.Exit(0) |
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case "-requireVersion": |
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if len(os.Args) < 3 { |
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out.FatalTerminalVersionMismatch(version, "") |
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} |
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if os.Args[2] != version { |
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out.FatalTerminalVersionMismatch(version, os.Args[2]) |
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} |
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return os.Args[3:] |
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} |
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return os.Args[1:] |
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} |
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#!/hint/sh |
#!/hint/sh |
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__resh_maybe_reload() { |
__resh_reload_shellrc() { |
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if [ "$__RESH_VERSION" != "$(resh-collect -version)" ]; then |
source ~/.resh/shellrc |
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# shellcheck source=shellrc.sh |
printf '\n' |
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source ~/.resh/shellrc |
printf '+--------------------------------------------------------------+\n' |
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local version="$(resh-collect -version)" |
printf '| New version of RESH shell files was loaded in this terminal. |\n' |
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if [ "$__RESH_VERSION" != "$version" ]; then |
printf '| This is an informative message - no action is necessary. |\n' |
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# this should not happen |
printf '| Please restart this terminal if you encounter any issues. |\n' |
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echo "RESH WARNING: You probably just updated RESH - PLEASE RESTART OR RELOAD THIS TERMINAL SESSION (resh version: $version); resh version of this terminal session: ${__RESH_VERSION})" |
printf '+--------------------------------------------------------------+\n' |
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return 1 |
printf '\n' |
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else |
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echo "RESH INFO: New RESH shellrc script was loaded - if you encounter any issues please restart this terminal session." |
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fi |
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fi |
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return 0 |
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} |
} |
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__resh_reset_variables() { |
# BACKWARDS COMPATIBILITY NOTES: |
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__RESH_RECORD_ID=$(resh-generate-uuid) |
# |
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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() { |
__resh_preexec() { |
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# core |
# $1 is command line |
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__RESH_COLLECT=1 |
# $2 can be --no-reload opt |
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__RESH_CMDLINE="$1" # not local to preserve it for postcollect (useful as sanity check) |
# Backwards compatibity: Do not change -version opt. |
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__resh_collect --cmdLine "$__RESH_CMDLINE" |
# 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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# used for collect and collect --recall |
# If `$2` is non-empty we play it safe, don't reload, and leave it up to resh-collect to error because of `--required-version` option. |
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__resh_collect() { |
# This behavior gives user and error instead of handling things silently and risking infinite recursion. |
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# posix |
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local __RESH_PWD="$PWD" |
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# non-posix |
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local __RESH_SHLVL="$SHLVL" |
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local __RESH_GIT_REMOTE; __RESH_GIT_REMOTE="$(git remote get-url origin 2>/dev/null)" |
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__RESH_RT_BEFORE=$(resh-get-epochtime) |
__resh_reload_shellrc |
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# Rerun self but prevent another reload. Extra protection against infinite recursion. |
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if __resh_maybe_reload; then |
__RESH_NO_RELOAD=1 __resh_preexec "$@" |
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resh-collect -requireVersion "$__RESH_VERSION" \ |
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-requireRevision "$__RESH_REVISION" \ |
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-shell "$__RESH_SHELL" \ |
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-sessionID "$__RESH_SESSION_ID" \ |
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-recordID "$__RESH_RECORD_ID" \ |
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-home "$__RESH_HOME" \ |
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-pwd "$__RESH_PWD" \ |
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-sessionPID "$__RESH_SESSION_PID" \ |
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-shlvl "$__RESH_SHLVL" \ |
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-gitRemote "$__RESH_GIT_REMOTE" \ |
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-time "$__RESH_RT_BEFORE" \ |
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"$@" |
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return $? |
return $? |
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fi |
fi |
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return 1 |
__RESH_COLLECT=1 |
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__RESH_RECORD_ID=$(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() { |
__resh_precmd() { |
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local __RESH_EXIT_CODE=$? |
# Get status first before it gets overriden by another command. |
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local __RESH_RT_AFTER |
local exit_code=$? |
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local __RESH_SHLVL="$SHLVL" |
# Don't do anything if __resh_preexec was not called. |
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__RESH_RT_AFTER=$(resh-get-epochtime) |
# There are situations (in bash) where no command was submitted but __resh_precmd gets called anyway. |
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if [ -n "${__RESH_COLLECT}" ]; then |
[ -n "${__RESH_COLLECT-}" ] || return |
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if __resh_maybe_reload; then |
if [ "$(resh-postcollect -version)" != "$__RESH_VERSION" ]; then |
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resh-postcollect -requireVersion "$__RESH_VERSION" \ |
# Reload shell files and return - i.e. skip recording part2 for this command. |
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-requireRevision "$__RESH_REVISION" \ |
# 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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-timeBefore "$__RESH_RT_BEFORE" \ |
# This should happen only in the one terminal where resh update was executed. |
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-exitCode "$__RESH_EXIT_CODE" \ |
# 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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-sessionID "$__RESH_SESSION_ID" \ |
__resh_reload_shellrc |
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-recordID "$__RESH_RECORD_ID" \ |
return |
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-shlvl "$__RESH_SHLVL" \ |
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-timeAfter "$__RESH_RT_AFTER" |
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fi |
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__resh_reset_variables |
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fi |
fi |
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unset __RESH_COLLECT |
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() { |
__resh_session_init() { |
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if __resh_maybe_reload; then |
resh-session-init -requireVersion "$__RESH_VERSION" \ |
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resh-session-init -requireVersion "$__RESH_VERSION" \ |
--session-id "$__RESH_SESSION_ID" \ |
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-requireRevision "$__RESH_REVISION" \ |
--session-pid "$$" |
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-sessionId "$__RESH_SESSION_ID" \ |
return $? |
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-sessionPid "$__RESH_SESSION_PID" |
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fi |
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} |
} |
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