Project

General

Profile

1 8291 aaronmk
#!/bin/bash -e
2
shopt -s expand_aliases
3 8272 aaronmk
# run scripts: a bash-based replacement for make
4
# unlike make, supports full bash functionality including multiline commands
5
# usage: path/to/dir/run cmd args
6
7
if false; then #### run script template:
8 8291 aaronmk
#!/bin/bash -e
9 8272 aaronmk
. "$(dirname "${BASH_SOURCE[0]}")"/path/to/util.run or file_including_util.run
10
. "$(dirname "${BASH_SOURCE[0]}")"/other_includes
11
12
cmd ()
13
{
14 8463 aaronmk
	echo_func "$@"
15 8272 aaronmk
	"$(dirname "${BASH_SOURCE[0]}")"/path_relative_to_self
16
	"$(dirname "${BASH_SOURCE[1]}")"/path_relative_to_caller
17
	"$top_dir"/path_relative_to_outermost_script
18
}
19
fi ####
20
21 8278 aaronmk
echo_cmd () { echo "$PS4$*" >&2; }
22 8272 aaronmk
23 8278 aaronmk
echo_run () { echo_cmd "$@"; "$@"; }
24
25 8646 aaronmk
canon_rel_path ()
26
{
27
	local path="$1"
28
	path="$(readlink -f -- "$path")" # canonicalize
29
	path="${path#$PWD/}" # remove any shared prefix with the current dir
30
	echo "$path"
31
}
32
33 8463 aaronmk
# usage: echo_func "$@"
34
echo_func ()
35
{
36 8647 aaronmk
	local script="$(canon_rel_path "${BASH_SOURCE[1]}")"
37
	echo_cmd "$script:${BASH_LINENO[0]}" "${FUNCNAME[1]}" "$@"
38 8463 aaronmk
}
39 8279 aaronmk
40 8275 aaronmk
echo_stdin () { tee -a /dev/stderr; } # usage: input|echo_stdin|cmd
41
42 8650 aaronmk
echo_vars () { declare -p "${@%%=*}" >&2; } # usage: echo_vars var...
43 8641 aaronmk
44
echo_export ()
45
{
46 8649 aaronmk
	export "$@"
47 8641 aaronmk
	echo_vars "$@"
48
}
49
50 8643 aaronmk
alias export="echo_export" # automatically echo env vars when they are set
51 8642 aaronmk
52 8272 aaronmk
usage () { echo "Usage: $1" >&2; (exit 2); }
53
54
top_dir="$(dirname "$0")" # outermost script
55
56 8465 aaronmk
run_args_cmd () # runs the command line args command
57 8272 aaronmk
{
58 8292 aaronmk
	test "$?" -eq 0 || return
59 8289 aaronmk
	set -- "${BASH_ARGV[@]}"
60 8290 aaronmk
	test "$#" -ge 1 || set -- all
61 8648 aaronmk
	echo_cmd "$(canon_rel_path "$0")" "$@"; "$@"
62 8272 aaronmk
}
63
64 8464 aaronmk
# users can override this function to perform other commands (or no commands)
65
# after the script is read
66 8465 aaronmk
on_exit () { run_args_cmd; }
67 8464 aaronmk
trap on_exit EXIT
68
69 8284 aaronmk
fwd () # usage: subdirs=(...); fwd "$FUNCNAME" "$@"
70 8272 aaronmk
{
71 8463 aaronmk
	echo_func "$@"
72 8284 aaronmk
	: "${subdirs?}"
73
74 8272 aaronmk
	for subdir in "${subdirs[@]}"; do
75 8280 aaronmk
		"$(dirname "${BASH_SOURCE[1]}")"/"$subdir"/run "$@"
76 8272 aaronmk
	done
77
}
78
79 8280 aaronmk
make ()
80
{
81 8463 aaronmk
	echo_func "$@"
82 8280 aaronmk
	echo_run env make --directory="$top_dir" "$@"
83
}
84 8272 aaronmk
85 8276 aaronmk
if false; then ## usage:
86 8652 aaronmk
inline_make 3<<'EOF'
87 8276 aaronmk
target:
88
	$(self_dir)/cmd >$@
89
EOF
90
# target will be run automatically because it's first in the makefile
91
fi ##
92
inline_make ()
93
{
94 8653 aaronmk
	echo_func "$@"
95 8640 aaronmk
	local self="$(readlink -f "${BASH_SOURCE[1]}")"
96
	local self_dir="$(dirname "$self")"
97 8645 aaronmk
	export self self_dir
98 8640 aaronmk
99 8651 aaronmk
	make --makefile=<((
100 8652 aaronmk
		cat /dev/fd/3
101 8651 aaronmk
		echo -n "
102 8276 aaronmk
.SUFFIXES: # turn off built-in suffix rules
103
.SECONDARY: # don't automatically delete intermediate files
104
.DELETE_ON_ERROR: # delete target if recipe fails
105 8651 aaronmk
"
106
	)|echo_stdin) "$@"
107 8276 aaronmk
}
108 8658 aaronmk
109
alias zip="echo_run zip"
110
alias unzip="echo_run unzip"
111 8659 aaronmk
alias zip_newer="zip -u"
112
alias unzip_newer="unzip -u -o" # -o is safe b/c -u only extracts newer files