Class: Cfruby::FileEditCached
- Inherits:
-
Object
- Object
- Cfruby::FileEditCached
- Includes:
- Cfp_Cksum
- Defined in:
- lib/libcfenjin/fileeditcached.rb
Direct Known Subclasses
Instance Attribute Summary collapse
-
#filename ⇒ Object
readonly
Returns the value of attribute filename.
Class Method Summary collapse
-
.edit(fn) {|e| ... } ⇒ Object
This function allows you to use a block type:.
Instance Method Summary collapse
- #AppendIfNoSuchLine(line) ⇒ Object
- #AutoCreate ⇒ Object
- #changed? ⇒ Boolean
- #EmptyEntireFilePlease ⇒ Object
- #HashCommentLinesContaining(s) ⇒ Object
-
#initialize(fn) ⇒ FileEditCached
constructor
A new instance of FileEditCached.
- #NoSuchLine(check, regex = true) ⇒ Object
- #PrependIfNoSuchLine(line) ⇒ Object
- #ReplaceAll(repl, with) ⇒ Object
- #ReplaceAllAppend(repl, with) ⇒ Object
-
#ReplaceSection(first, last, with, include_first_last = false) ⇒ Object
Edit a text file replacing a section with first line and last line passed as a regular expression.
- #Warning(msg = '') ⇒ Object
- #write(dobackup = true) ⇒ Object
Methods included from Cfp_Cksum
Constructor Details
#initialize(fn) ⇒ FileEditCached
Returns a new instance of FileEditCached.
16 17 18 19 20 21 22 23 24 25 26 27 |
# File 'lib/libcfenjin/fileeditcached.rb', line 16 def initialize fn @filename = fn @lines = Array.new if File.exist? fn FileOps.flock(fn) { | f| f.each_line do | line | @lines.push line end } end @original_cksum = cksum @lines end |
Instance Attribute Details
#filename ⇒ Object (readonly)
Returns the value of attribute filename.
12 13 14 |
# File 'lib/libcfenjin/fileeditcached.rb', line 12 def filename @filename end |
Class Method Details
.edit(fn) {|e| ... } ⇒ Object
This function allows you to use a block type:
EditFileCached.edit fn do | e |
e.AppendIfNoSuchLine 'Yes!'
end
146 147 148 149 150 |
# File 'lib/libcfenjin/fileeditcached.rb', line 146 def FileEditCached.edit fn e = FileEditCached.new fn yield e e.write end |
Instance Method Details
#AppendIfNoSuchLine(line) ⇒ Object
55 56 57 |
# File 'lib/libcfenjin/fileeditcached.rb', line 55 def AppendIfNoSuchLine line @lines.push forcenl(line) if NoSuchLine line,false end |
#AutoCreate ⇒ Object
33 34 35 |
# File 'lib/libcfenjin/fileeditcached.rb', line 33 def AutoCreate @createnew = true end |
#changed? ⇒ Boolean
29 30 31 |
# File 'lib/libcfenjin/fileeditcached.rb', line 29 def changed? cksum(@lines) != @original_cksum end |
#EmptyEntireFilePlease ⇒ Object
37 38 39 |
# File 'lib/libcfenjin/fileeditcached.rb', line 37 def EmptyEntireFilePlease @lines = Array.new end |
#HashCommentLinesContaining(s) ⇒ Object
113 114 115 116 117 |
# File 'lib/libcfenjin/fileeditcached.rb', line 113 def HashCommentLinesContaining s @lines.each_index do | i | @lines[i] = '#'+@lines[i] if @lines[i] =~ /#{s}/ and @lines[i] !~ /^#/ end end |
#NoSuchLine(check, regex = true) ⇒ Object
59 60 61 62 63 64 65 66 67 68 69 |
# File 'lib/libcfenjin/fileeditcached.rb', line 59 def NoSuchLine check, regex=true @lines.each do | line | if regex return false if line =~ /^#{check}$/ else # p line.strip,check.strip return false if line.strip == check.strip end end true end |
#PrependIfNoSuchLine(line) ⇒ Object
51 52 53 |
# File 'lib/libcfenjin/fileeditcached.rb', line 51 def PrependIfNoSuchLine line @lines.unshift forcenl(line) if NoSuchLine line,false end |
#ReplaceAll(repl, with) ⇒ Object
71 72 73 74 75 |
# File 'lib/libcfenjin/fileeditcached.rb', line 71 def ReplaceAll repl,with @lines.each_index do | i | @lines[i] = @lines[i].gsub(/#{repl}/,with) end end |
#ReplaceAllAppend(repl, with) ⇒ Object
77 78 79 80 |
# File 'lib/libcfenjin/fileeditcached.rb', line 77 def ReplaceAllAppend repl,with ReplaceAll repl,with AppendIfNoSuchLine with end |
#ReplaceSection(first, last, with, include_first_last = false) ⇒ Object
Edit a text file replacing a section with first line and last line passed as a regular expression.
Optionally you can include replacing the fist and last lines.
87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 |
# File 'lib/libcfenjin/fileeditcached.rb', line 87 def ReplaceSection first,last,with,include_first_last=false @lines.each_index do | i | if @lines[i] =~ /^#{first}$/ fi = i fi -= 1 if include_first_last section = '' begin i = i+1 if @lines[i] =~ /#{last}$/ if section != with # $logger.log "EditFile replacing section #{first} with \"#{with}\"" i += 1 if include_first_last before = @lines.slice(0..fi) after = @lines.slice(i,@lines.size) # ---- insert new @lines = before + with.split("\n") + after end return end section += @lines[i] end while @lines[i] end end # $logger.warn "Section #{first} in #{@filename} does not exist!" end |
#Warning(msg = '') ⇒ Object
41 42 43 44 45 46 47 48 49 |
# File 'lib/libcfenjin/fileeditcached.rb', line 41 def Warning msg='' fullmsg = "# WARNING: DO NOT CHANGE THIS FILE - it is maintained by #{ENV['USER']} #{msg} "+`date` if NoSuchLine '^# WARNING: DO NOT CHANGE THIS FILE' PrependIfNoSuchLine fullmsg else @lines[0] = fullmsg end end |
#write(dobackup = true) ⇒ Object
119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 |
# File 'lib/libcfenjin/fileeditcached.rb', line 119 def write dobackup=true if !File.exist? @filename and !@createnew # $logger.log "EditFile not creating (non existent file) #{@filename}" return end if changed? if dobackup and File.exist? @filename FileOps.backup @filename end # $logger.log "EditFile writing updated #{@filename}" FileOps.flock(@filename,'w') { | f | @lines.each do | line | f.puts line end } else # $logger.log "EditFile #{@filename} unchanged" end end |