forked from StartAutomating/PipeScript
-
Notifications
You must be signed in to change notification settings - Fork 1
/
Search-PipeScript.ps1
242 lines (233 loc) · 9.58 KB
/
Search-PipeScript.ps1
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
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
function Search-PipeScript {
<#
.Synopsis
Searches PowerShell and PipeScript ScriptBlocks
.Description
Searches the contents of PowerShell and PipeScript ScriptBlocks, files, and text.
Search-PipeScript can search using an -ASTCondition -or -ASTType or with a -RegularExpression.
.Example
Search-PipeScript -ScriptBlock {
$a
$b
$c
"text"
} -AstType Variable
.LINK
Update-PipeScript
#>
[OutputType('Search.PipeScript.Result')]
[Alias('Search-ScriptBlock')]
param(
# The ScriptBlock that will be searched.
[Parameter(ValueFromPipeline,ValueFromPipelineByPropertyName)]
[Alias('ScriptBlock','Text')]
[ValidateScript({
$validTypeList = [System.String],[System.Management.Automation.ScriptBlock],[System.IO.FileInfo]
$thisType = $_.GetType()
$IsTypeOk =
$(@( foreach ($validType in $validTypeList) {
if ($_ -as $validType) {
$true;break
}
}))
if (-not $isTypeOk) {
throw "Unexpected type '$(@($thisType)[0])'. Must be 'string','scriptblock','System.IO.FileInfo'."
}
return $true
})]
$InputObject,
# The AST Condition.
# These Script Blocks
[Parameter(ValueFromPipelineByPropertyName)]
[Alias('ASTDelegate')]
[ScriptBlock[]]
$AstCondition,
# A shortname for the abstract syntax tree types.
[Parameter(ValueFromPipelineByPropertyName)]
[ValidateScript({
$validTypeList = [System.String],[System.Text.RegularExpressions.Regex],[System.String[]],[System.Text.RegularExpressions.Regex[]]
$thisType = $_.GetType()
$IsTypeOk =
$(@( foreach ($validType in $validTypeList) {
if ($_ -as $validType) {
$true;break
}
}))
if (-not $isTypeOk) {
throw "Unexpected type '$(@($thisType)[0])'. Must be 'string','regex','string[]','regex[]'."
}
return $true
})]
$AstType,
# One or more regular expressions to match.
[Parameter(ValueFromPipelineByPropertyName)]
[Alias('RegEx','Regexes','RegularExpressions')]
[ValidateScript({
$validTypeList = [System.String],[System.Text.RegularExpressions.Regex],[System.String[]],[System.Text.RegularExpressions.Regex[]]
$thisType = $_.GetType()
$IsTypeOk =
$(@( foreach ($validType in $validTypeList) {
if ($_ -as $validType) {
$true;break
}
}))
if (-not $isTypeOk) {
throw "Unexpected type '$(@($thisType)[0])'. Must be 'string','regex','string[]','regex[]'."
}
return $true
})]
$RegularExpression,
# If set, will search nested script blocks.
[Alias('SearchNestedScriptBlock')]
[switch]
$Recurse
)
process {
$ScriptBlock = $null
$Text = $null
# If the input was a file
if ($InputObject -is [IO.FileInfo]) {
$inputCommand = # get the resolved command
$ExecutionContext.SessionState.InvokeCommand.GetCommand(
$InputObject.Fullname, 'ExternalScript,Application')
# If the command was an external script
if ($inputCommand -is [Management.Automation.ExternalScriptInfo]) {
# Use it's ScriptBlock
$ScriptBlock = $inputCommand.ScriptBlock
}
# If the command was an application, and it looks like PipeScript
elseif (
$inputCommand -is [Management.Automation.ApplicationInfo] -and
$inputCommand.Source -match '\.ps$'
) {
# Load the file text
$text = [IO.File]::ReadAllText($inputCommand.Source)
# and create a script block.
$scriptBlock = [ScriptBlock]::Create($text)
}
# Otherwise
else
{
# Read the file contents as text.
$text = [IO.File]::ReadAllText($inputCommand.Source)
}
}
# If the inputObject was a [ScriptBlock]
if ($InputObject -is [scriptblock]) {
$scriptBlock = $InputObject # set $ScriptBlock
}
# If the InputObject is a string
if ($InputObject -is [string]) {
$Text = $InputObject # set $Text.
}
# If we have a ScriptBlock
if ($scriptBlock) {
# Reset $text to the ScriptBlock contents.
$Text = "$scriptBlock"
# If we have an ASTType to find
if ($AstType) {
foreach ($astTypeName in $AstType) {
# See if it's a real type
$realAstType =
foreach ($potentialType in $AstType,
"Management.Automation.Language.$AstType",
"Management.Automation.Language.${AstType}AST"
) {
if ($potentialType -as [type]) {
$potentialType -as [type]; break
}
}
# If it was a real type, but in the wrong namespace
if ($realAstType -and $realAstType.Namespace -eq 'Management.Automation.Language') {
Write-Error "'$astType' is not an AST type" # error and continue.
continue
}
# Set the search condition
$condition =
if ($realAstType) {
# If there was a real type, search for it.
[ScriptBlock]::Create('param($ast) $ast -is [' + $realAstType.FullName + ']')
}
elseif ($astType -is [Regex]) {
[scriptblock]::Create((
'param($ast)
$ast.GetType().Name -match ([Regex]::New(' +
$astType.ToString().Replace("'", "''") + "','" +
$astType.Options + "','" +
$(if ($AstType.MatchTimeout -lt 0) {
'00:00:05'
} else {
$AstType.MatchTimeout.ToString()
}) + '))'
))
}
elseif ($astType -as [regex]) {
[ScriptBlock]::Create('param($ast) $ast.GetType().Name -match "'+ $astType +'"')
} else {
[ScriptBlock]::Create('param($ast) $ast.GetType().Name -like "*' + $astType +'*"')
}
# Add this condition to the list of conditions.
$AstCondition += $condition
}
}
# If we have any AST conditions
if ($AstCondition) {
foreach ($condition in $AstCondition) {
# Find all of the results.
$ScriptBlock.Ast.FindAll($condition, ($Recurse -as [bool])) |
& { process {
$in = $this = $_
[PSCustomObject][Ordered]@{
'InputObject' =
$inputObject
'Result' =
& {
$_
}
'Expression' =
$condition
'ScriptBlock' =
& {
$ScriptBlock
}
'PSTypeName' =
"Search.PipeScript.Result"
}
} }
}
}
}
if ($text) {
if ($RegularExpression) {
foreach ($regex in $RegularExpression) {
$realRegex =
if ($regex -is [regex]) {
$regex
} else {
[Regex]::new($regex)
}
$realRegex.Matches($text) |
& { process {
$in = $this = $_
[PSCustomObject][Ordered]@{
'InputObject' =
$InputObject
'Result' =
& {
$_
}
'Expression' =
$realRegex
'RegularExpression' =
& {
$realRegex
}
'PSTypeName' =
"Search.PipeScript.Result"
}
} }
}
}
}
}
}