about summary refs log tree commit diff
path: root/Completion/Unix/Command/_make
blob: 28b376becb376877b48912bb3e8053fc350c72a0 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
#compdef make gmake pmake dmake

# TODO: Based on targets given on the command line, show only variables that
# are used in those targets and their dependencies.

local prev="$words[CURRENT-1]" file expl tmp is_gnu dir incl match
local -A TARGETS VARIABLES

expandVars() {
	local open close var val front ret tmp=$1

	front=${tmp%%\$*}
	case $tmp in
		(\(*) # Variable of the form $(foobar)
			open='('
			close=')'
			;;

		({*) # ${foobar}
			open='{'
			close='}'
			;;

		([[:alpha:]]*) # $foobar. This is exactly $(f)oobar.
			open=''
			close=''
			var=${(s::)var[1]}
			;;

		(\$*) # Escaped $.
			print -- "${front}\$$(expandVars ${tmp#\$})"
			return
			;;

		(*) # Nothing left to substitute.
			print -- $tmp
			return
			;;
	esac

	if [[ -n $open ]]
	then
		var=${tmp#$open}
		var=${var%%$close*}
	fi

	case $var in
		([[:alnum:]_]#)
			val=${VARIABLES[$var]}
			ret=${ret//\$$open$var$close/$val}
			;;

		(*) # Improper variable name. No replacement. I'm not sure if this is desired behavior.
			front+="\$$open$var$close"
			ret=${ret/\$$open$var$close/}
			;;
	esac

	print -- "${front}$(expandVars ${ret})"
}

parseMakefile () {
	local input var val target dep TAB=$'\t' dir=$1 tmp

	while read input
	do
		case "$input " in
		# VARIABLE = value
		([[:alnum:]][[:alnum:]_]#[ $TAB]#=*)
			var=${input%%[ $TAB]#=*}
			val=${input#*=}
			val=${val##[ $TAB]#}
			VARIABLES[$var]=$val
			;;

		# VARIABLE := value
		# Evaluated immediately
		([[:alnum:]][[:alnum:]_]#[ $TAB]#:=*)
			var=${input%%[ $TAB]#:=*}
			val=${input#*=}
			val=${val##[ $TAB]#}
			val=$(expandVars $val)
			VARIABLES[$var]=$val
			;;

		# TARGET: dependencies
		# TARGET1 TARGET2 TARGET3: dependencies
		([[:alnum:]][^$TAB:=]#:[^=]*)
			input=$(expandVars $input)
			target=${input%%:*}
			dep=${input#*:}
			dep=${(z)dep}
			dep="$dep"
			for tmp in ${(z)target}
			do
				TARGETS[$tmp]=$dep
			done
			;;

		# Include another makefile
		(${~incl} *)
			local f=${input##${~incl} ##}
			if [[ $incl == '.include' ]]
			then
				f=${f#[\"<]}
				f=${f%[\">]}
			fi
			f=$(expandVars $f)
			case $f in
				(/*) ;;
				(*) f=$dir/$f ;;
			esac

			if [[ -r $f ]]
			then
				parseMakefile ${f%%/[^/]##} < $f
			fi
			;;
		esac
	done
}

findBasedir () {
	local file index basedir
	basedir=$PWD
	for (( index=0; index < $#@; index++ ))
	do
		if [[ $@[index] == -C ]]
		then
			file=${~@[index+1]};
			if [[ -z $file ]]
			then
				# make returns with an error if an empty arg is given
				# even if the concatenated path is a valid directory
				return
			elif [[ $file == /* ]]
			then
				# Absolute path, replace base directory
				basedir=$file
			else
				# Relative, concatenate path
				basedir=$basedir/$file
			fi
		fi
	done
	print -- $basedir
}

_pick_variant -r is_gnu gnu=GNU unix -v -f

if [[ $is_gnu == gnu ]]
then
	incl="(-|)include"
else
	incl=.include
fi

if [[ "$prev" == -[CI] ]]
then
	_files -W ${(q)$(findBasedir ${words[1,CURRENT-1]})} -/
elif [[ "$prev" == -[foW] ]]
then
	_files -W ${(q)$(findBasedir $words)}
else
	file="$words[(I)-f]"
	if (( file ))
	then
		file=${~words[file+1]}
		[[ $file == [^/]* ]] && file=${(q)$(findBasedir $words)}/$file
		[[ -r $file ]] || file=
	else
		local basedir
		basedir=${(q)$(findBasedir $words)}
		if [[ $is_gnu == gnu && -r $basedir/GNUmakefile ]]
		then
			file=$basedir/GNUmakefile
		elif [[ -r $basedir/makefile ]]
		then
			file=$basedir/makefile
		elif [[ -r $basedir/Makefile ]]
		then
			file=$basedir/Makefile
		else
			file=''
		fi
	fi

	if [[ -n "$file" ]]
	then
		if [[ $is_gnu == gnu ]] && zstyle -t ":completion:${curcontext}:targets" call-command
		then
			parseMakefile $PWD < <(_call_program targets "$words[1]" -nsp --no-print-directory -f "$file" .PHONY 2> /dev/null)
		else
			parseMakefile $PWD < $file
		fi
	fi

	if [[ $PREFIX == (#b)([^=]##)'='* ]] && [[ -n ${${(k)VARIABLES}[(r)${match[1]}]} ]]
	then
		_message 'override make variable'
	else
		_tags targets variables
		while _tags
		do
			_requested targets expl 'make targets' \
				compadd -- ${(k)TARGETS}
			_requested variables expl 'make variables' \
				compadd -S '=' -- ${(k)VARIABLES}
		done
	fi

	# These are left over from the old completion. I'm not sure what they do.
	#compstate[parameter]="${PREFIX%%\=*}"
	#compset -P 1 '*='
	#_value "$@"
fi