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1
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#!/bin/bash -e
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2
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realpath () { readlink -f -- "$1"; }
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3
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4
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include_guard_var () { realpath "$1"|sed 's/[^a-zA-Z0-9_]/_/g'; }
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5
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6
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self_not_included () # usage: if self_not_included; then ... fi
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7
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{
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8
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test "$#" -ge 1 || set -- "${BASH_SOURCE[1]}"
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9
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local include_guard="$(include_guard_var "$1")"
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10
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test -z "${!include_guard+t}" && eval "$include_guard"=1
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11
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}
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12
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13
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if self_not_included "${BASH_SOURCE[0]}"; then
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14
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15
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shopt -s expand_aliases
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16
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17
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set_var () { eval "$1"'="$2"'; }
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18
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19
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reverse () # usage: array=($(reverse args...))
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20
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{
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21
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local i
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22
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for (( i=$#; i >= 1; i-- )); do printf '%q ' "${!i}"; done
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23
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}
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24
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25
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: "${verbosity:=$verbose}" "${verbosity:=0}"
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26
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27
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echo_cmd () { echo "$PS4$*" >&2; }
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28
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29
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echo_run () { echo_cmd "$@"; "$@"; }
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30
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31
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canon_rel_path ()
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32
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{
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33
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local path="$1"
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34
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path="$(realpath "$path")" # canonicalize
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35
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path="${path#$PWD/}" # remove any shared prefix with the current dir
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36
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echo "$path"
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37
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}
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38
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39
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# usage: echo_func "$@"
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40
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echo_func ()
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41
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{
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42
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local script="$(canon_rel_path "${BASH_SOURCE[1]}")"
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43
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echo_cmd "$script:${BASH_LINENO[0]}" "${FUNCNAME[1]}" "$@"
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44
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}
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45
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46
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echo_stdin () # usage: input|echo_stdin|cmd
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47
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{
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48
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echo ----- >&2
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49
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tee -a /dev/stderr;
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50
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echo ----- >&2
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51
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}
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52
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53
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echo_vars () { declare -p "${@%%=*}" >&2; } # usage: echo_vars var...
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54
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55
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echo_export ()
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56
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{
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57
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builtin export "$@"
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58
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echo_vars "$@"
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59
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}
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60
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61
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if test "$verbosity" -ge 2; then
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62
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alias export="echo_export" # automatically echo env vars when they are set
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63
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fi
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64
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65
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usage () { echo "Usage: $1" >&2; (exit 2); }
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66
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67
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top_dir="$(dirname "$0")" # outermost script
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68
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69
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run_args_cmd () # runs the command line args command
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70
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{
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71
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test "$?" -eq 0 || return
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72
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eval set -- "$(reverse "${BASH_ARGV[@]}")"
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73
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test "$#" -ge 1 || set -- all
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74
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echo_cmd "$(canon_rel_path "$0")" "$@"; "$@"
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75
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}
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76
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77
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fwd () # usage: subdirs=(...); fwd "$FUNCNAME" "$@"
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78
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{
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79
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echo_func "$@"
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80
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: "${subdirs?}"
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81
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82
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for subdir in "${subdirs[@]}"; do
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83
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"$(dirname "${BASH_SOURCE[1]}")"/"$subdir"/run "$@"
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84
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done
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85
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}
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86
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87
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make ()
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88
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{
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89
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echo_func "$@"
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90
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echo_run env make --directory="$top_dir" "$@"
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91
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}
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92
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93
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if false; then ## usage:
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94
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inline_make 3<<'EOF'
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95
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target:
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96
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$(self_dir)/cmd >$@
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97
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EOF
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98
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# target will be run automatically because it's first in the makefile
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99
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fi ##
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100
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inline_make ()
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101
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{
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102
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echo_func "$@"
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103
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local self="$(readlink -f "${BASH_SOURCE[1]}")"
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104
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local self_dir="$(dirname "$self")"
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105
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export self self_dir
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106
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107
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make --makefile=<((
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108
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cat /dev/fd/3
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109
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echo -n "
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110
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.SUFFIXES: # turn off built-in suffix rules
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111
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.SECONDARY: # don't automatically delete intermediate files
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112
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.DELETE_ON_ERROR: # delete target if recipe fails
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113
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"
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114
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)|echo_stdin) "$@"
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115
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}
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116
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117
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alias zip="echo_run zip"
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118
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alias unzip="echo_run unzip"
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119
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alias zip_newer="zip -u"
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120
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alias unzip_newer="unzip -u -o" # -o is safe b/c -u only extracts newer files
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121
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122
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fi
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