No::Worries(3pm)

1No::Worries(3)        User Contributed Perl Documentation       No::Worries(3)
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NAME

6       No::Worries - coding without worries
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SYNOPSIS

9         use No::Worries qw($HostName $ProgramName);
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11         printf("host is %s\n", $HostName);
12         printf("program is %s\n", $ProgramName);
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DESCRIPTION

15       This module and its sub-modules ease coding by providing consistent
16       convenient functions to perform frequently used programming tasks.
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18       This module also exposes the $HostName and $ProgramName variables that
19       represent what the sub-modules think the host name or program name is.
20       These variables can be changed, if needed.
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PROGRAMMING STYLE

23   ERROR HANDLING
24       All the functions die() on error so one does not have to worry about
25       error checking: by default, any error will stop the code execution. The
26       recommended way to catch errors is to use eval().
27
28       For consistency, all the sub-modules use No::Worries::Die's dief() to
29       report errors and No::Worries::Warn's warnf() to report warnings. The
30       NO_WORRIES environment variable can be used to control how errors and
31       warnings are reported (see No::Worries::Die and No::Worries::Warn).
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33   OPTION PASSING
34       All the functions use the same consistent API with hashes to pass
35       options like in:
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37         dir_make("/tmp/some/path", mode => 0770);
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39       This is a bit overkill when only one option is supported but it allows
40       adding options later without breaking old code.
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42       The options can also be passed via a hash reference (this can be useful
43       to avoid data copying):
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45         dir_make("/tmp/some/path", { mode => 0770 });
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47       All the options are checked using Params::Validate.
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49   SYMBOL IMPORTING
50       All the modules are "clean" in the sense that they do not import any
51       symbol into the caller's namespace. All the needed symbols (usually
52       functions) have to be explicitly imported like in:
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54         use No::Worries::Die qw(dief);
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56       In addition, all "normal" symbols can be imported at once using the
57       asterisk character:
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59         use No::Worries::Log qw(*);
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MODULES

62       Here are the relevant sub-modules and what they provide:
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64       No::Worries::Date - date handling:
65           •   date_parse(STRING)
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67           •   date_stamp([TIME])
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69           •   date_string([TIME])
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71       No::Worries::Die - error handling:
72           •   dief(FORMAT, ARGUMENTS...)
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74       No::Worries::Dir - directory handling:
75           •   dir_change(PATH)
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77           •   dir_ensure(PATH[, OPTIONS])
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79           •   dir_make(PATH[, OPTIONS])
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81           •   dir_parent(PATH)
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83           •   dir_read(PATH)
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85           •   dir_remove(PATH)
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87       No::Worries::DN - Distinguished Names handling:
88           •   dn_parse(STRING)
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90           •   dn_string(DN, FORMAT)
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92       No::Worries::Export - export control:
93           •   export_control(CALLERPKG, PKG, EXPORT, NAMES...)
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95       No::Worries::File - file handling:
96           •   file_read(PATH[, OPTIONS])
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98           •   file_write(PATH[, OPTIONS])
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100           •   file_update(PATH[, OPTIONS])
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102       No::Worries::Log - logging (log and filter information):
103           •   log_filter(FILTER)
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105           •   log_configure(PATH)
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107           •   log_wants_error()
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109           •   log_wants_warning()
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111           •   log_wants_info()
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113           •   log_wants_debug()
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115           •   log_wants_trace()
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117           •   log_error(ARGUMENTS)
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119           •   log_warning(ARGUMENTS)
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121           •   log_info(ARGUMENTS)
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123           •   log_debug(ARGUMENTS)
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125           •   log_trace()
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127           •   log2std(INFO)
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129           •   log2dump(INFO)
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131       No::Worries::PidFile - pid file handling:
132           •   pf_set(PATH[, OPTIONS])
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134           •   pf_check(PATH[, OPTIONS])
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136           •   pf_unset(PATH)
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138           •   pf_touch(PATH)
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140           •   pf_sleep(PATH[, OPTIONS])
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142           •   pf_status(PATH[, OPTIONS])
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144           •   pf_quit(PATH[, OPTIONS])
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146       No::Worries::Proc - process handling:
147           •   proc_output(COMMAND...)
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149           •   proc_create(OPTIONS)
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151           •   proc_terminate(PROC[, OPTIONS])
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153           •   proc_monitor(PROCS[, OPTIONS])
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155           •   proc_run(OPTIONS)
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157           •   proc_detach([OPTIONS])
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159           •   proc_status(STATUS)
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161       No::Worries::Stat - file status handling:
162           •   stat_ensure(PATH[, OPTIONS])
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164           •   stat_type(MODE)
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166       No::Worries::String - string handling:
167           •   string_bytefmt(NUMBER[, PRECISION])
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169           •   string_escape(STRING)
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171           •   string_plural(STRING)
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173           •   string_quantify(NUMBER, STRING)
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175           •   string_table(TABLE[, OPTIONS])
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177           •   string_trim(STRING)
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179       No::Worries::Syslog - syslog handling:
180           •   syslog_open([OPTIONS])
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182           •   syslog_close()
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184           •   syslog_sanitize(STRING)
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186           •   syslog_debug(FORMAT, ARGUMENTS...)
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188           •   syslog_info(FORMAT, ARGUMENTS...)
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190           •   syslog_warning(FORMAT, ARGUMENTS...)
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192           •   syslog_error(FORMAT, ARGUMENTS...)
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194           •   log2syslog(INFO)
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196       No::Worries::Warn - warning handling:
197           •   warnf(FORMAT, ARGUMENTS...)
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ENVIRONMENT VARIABLES

200       The No::Worries::Die and No::Worries::Warn modules use the "NO_WORRIES"
201       environment variable to control how errors and warnings should be
202       reported.
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GLOBAL VARIABLES

205       This module uses the following global variables (that can all be
206       imported):
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208       $HostName
209           the name of the host this program runs on (default: derived from
210           Sys::Hostname)
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212       $ProgramName
213           the name of the program currently running (default: derived from
214           $0)
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AUTHOR

224       Lionel Cons <http://cern.ch/lionel.cons>
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226       Copyright (C) CERN 2012-2019
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230perl v5.32.1                      2021-01-27                    No::Worries(3)