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#!/bin/bash -e
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# runscripts: a bash-based replacement for make
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# unlike make, supports full bash functionality including multiline commands
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# usage: .../run function args
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# this usage also applies to all files that include this file
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if false; then #### run script template:
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#!/bin/bash -e
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auto_fwd=1 # optional
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. "$(dirname "${BASH_SOURCE[0]}")"/path/to/util_or_file_including_util.run "$@"
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.rel other_includes
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all()
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{
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echo_func
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"$(dirname "${BASH_SOURCE[0]}")"/path_relative_to_self
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"$(dirname "${BASH_SOURCE[1]}")"/path_relative_to_caller
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"$top_dir"/path_relative_to_outermost_script
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}
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on_exit # needed if should be runnable as shell-include (with leading ".")
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fi ####
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. "$(dirname "${BASH_SOURCE[0]}")"/../sh/util.sh
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.rel ../sh/make.sh
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if self_not_included; then
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#### setup
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if is_dot_script; then
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if test "$1" = .; then set --; fi # $@ wrong: no args->contains script name
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include_args=("$@") # from `. .../util.run "$@"`
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fi
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fallback() # overridable handler for targets w/o function
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{ echo_func; "$@"; } # by default, generate error that it doesn't exist
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gateway() # overridable handler for *all* targets
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{ echo_func; if is_callable "$1"; then "$@"; else fallback "$@"; fi; }
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run_args_cmd() # runs the command line args command
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{
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if is_dot_script; then set -- "${include_args[@]}"
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else eval set -- "$(reverse "${BASH_ARGV[@]}")"
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fi
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test $# -ge 1 || set -- all
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echo_cmd "$top_script" "$@"; time gateway "$@"
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}
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# users can override run_args_cmd to perform other commands (or no commands)
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# after the script is read
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on_exit() { test $? -eq 0 || return; run_args_cmd; }
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if ! is_dot_script; then trap on_exit EXIT; fi
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func_override set_paths__util_sh
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set_paths()
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{
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set_paths__util_sh "$@"
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top_file="${top_script%[./]run}"; echo_vars top_file
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top_filename="$(basename "$top_file")"; echo_vars top_filename
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}
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set_paths
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#### utils
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wrap_fn="$top_script" # usage: sudo "$wrap_fn" fn ...
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# usage: to_top_file cmd...
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function to_top_file() { echo_func; stdout="$top_file" to_file "$@"; }
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alias to_top_file='"to_top_file" ' # last space alias-expands next word
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,() # usage: .../run , cmd1 cmd2 ... (like `make cmd1 cmd2 ...`)
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# treats each of the command-line args as commands the way make does
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# (instead of as args to the same command, the way runscripts do)
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{ echo_func; for cmd in "$@"; do time echo_run "$cmd"; done; }
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fwd() # usage: subdirs=(...); fwd target args... # or use fwd_self
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{
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echo_func
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: "${subdirs?}"
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local_export auto_ignore=1
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for subdir in "${subdirs[@]}"; do "$top_dir"/"$subdir"/run "$@"; done
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}
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alias fwd_self='fwd "$FUNCNAME" "$@"' # usage: target() { ...; fwd_self; }
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: "${auto_fwd=}" # usage: auto_fwd=1; . .../file_including_util.run
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if test "$auto_fwd"; then
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fallback() { echo_func; fwd "$@"; }
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fi
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: "${auto_ignore=}" #usage: auto_ignore=1 .../__.run target_that_might_not_exist
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if test "$auto_ignore"; then
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fallback() # don't generate error that it doesn't exist
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{ echo_func; log_info "ignoring non-existant target: $*"; }
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fi
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fi
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