4 Commits
0.4.0 ... 0.6.1

2 changed files with 50 additions and 24 deletions

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@ -1,4 +1,4 @@
import docopt, json, osproc, posix, nre, streams, strtabs, terminal, unicode import docopt, json, osproc, posix, nre, streams, strtabs, tables, terminal, unicode
import os except sleep import os except sleep
import strutils except toUpper, toLower import strutils except toUpper, toLower
@ -8,6 +8,8 @@ type
docopt*: Table[string, Value] docopt*: Table[string, Value]
json*: JsonNode json*: JsonNode
TermColor = ForegroundColor or BackgroundColor
proc getVal*(cfg: CombinedConfig, key, default: string): string = proc getVal*(cfg: CombinedConfig, key, default: string): string =
let argKey = "--" & key let argKey = "--" & key
let envKey = key.replace('-', '_').toUpper let envKey = key.replace('-', '_').toUpper
@ -39,20 +41,20 @@ type HandleProcMsgCB* = proc (outMsg: TaintedString,
errMsg: TaintedString, cmd: string): void errMsg: TaintedString, cmd: string): void
proc sendMsg*(h: HandleProcMsgCB, outMsg: TaintedString, proc sendMsg*(h: HandleProcMsgCB, outMsg: TaintedString,
errMsg: TaintedString = nil, cmd: string = ""): void = errMsg: TaintedString = "", cmd: string = ""): void =
if h != nil: h(outMsg, errMsg, cmd) if h != nil: h(outMsg, errMsg, cmd)
proc makeProcMsgHandler*(outSink, errSink: File, prefixCmd: bool = true): HandleProcMsgCB = proc makeProcMsgHandler*(outSink, errSink: File, prefixCmd: bool = true): HandleProcMsgCB =
result = proc(outMsg, errMsg: TaintedString, cmd: string): void {.closure.} = result = proc(outMsg, errMsg: TaintedString, cmd: string): void {.closure.} =
let prefix = if cmd == nil or not prefixCmd: "" else: cmd & ": " let prefix = if cmd.len == 0 or not prefixCmd: "" else: cmd & ": "
if outMsg != nil: outSink.writeLine(prefix & outMsg) if outMsg.len > 0: outSink.writeLine(prefix & outMsg)
if errMsg != nil: errSink.writeLine(prefix & errMsg) if errMsg.len > 0: errSink.writeLine(prefix & errMsg)
proc makeProcMsgHandler*(outSink, errSink: Stream, prefixCmd: bool = true): HandleProcMsgCB = proc makeProcMsgHandler*(outSink, errSink: Stream, prefixCmd: bool = true): HandleProcMsgCB =
result = proc(outMsg, errMsg: TaintedString, cmd: string): void {.closure.} = result = proc(outMsg, errMsg: TaintedString, cmd: string): void {.closure.} =
let prefix = if cmd == nil or not prefixCmd: "" else: cmd & ": " let prefix = if cmd.len == 0 or not prefixCmd: "" else: cmd & ": "
if outMsg != nil: outSink.writeLine(prefix & outMsg) if outMsg.len > 0: outSink.writeLine(prefix & outMsg)
if errMsg != nil: errSink.writeLine(prefix & errMsg) if errMsg.len > 0: errSink.writeLine(prefix & errMsg)
proc combineProcMsgHandlers*(a, b: HandleProcMsgCB): HandleProcMsgCB = proc combineProcMsgHandlers*(a, b: HandleProcMsgCB): HandleProcMsgCB =
if a == nil: result = b if a == nil: result = b
@ -70,9 +72,9 @@ proc waitFor*(p: Process, msgCB: HandleProcMsgCB, procCmd: string = ""): int =
var line = newStringOfCap(120).TaintedString var line = newStringOfCap(120).TaintedString
while true: while true:
if pout.readLine(line): if pout.readLine(line):
msgCB.sendMsg(line, nil, procCmd) msgCB.sendMsg(line, "", procCmd)
elif perr.readLine(line): elif perr.readLine(line):
msgCB.sendMsg(nil, line, procCmd) msgCB.sendMsg("", line, procCmd)
else: else:
result = peekExitCode(p) result = peekExitCode(p)
if result != -1: break if result != -1: break
@ -91,15 +93,15 @@ proc execWithOutput*(command: string, workingDir:string = "",
args: openArray[string] = [], env: StringTableRef = nil, args: openArray[string] = [], env: StringTableRef = nil,
options: set[ProcessOption] = {poUsePath}, options: set[ProcessOption] = {poUsePath},
msgCB: HandleProcMsgCB = nil): msgCB: HandleProcMsgCB = nil):
tuple[output: TaintedString, error: TaintedString, exitCode: int] = tuple[output, error: TaintedString, exitCode: int] =
result = (TaintedString"", TaintedString"", -1) result = (TaintedString"", TaintedString"", -1)
var outSeq, errSeq: seq[TaintedString] var outSeq, errSeq: seq[TaintedString]
outSeq = @[]; errSeq = @[] outSeq = @[]; errSeq = @[]
var outputCollector = combineProcMsgHandlers(msgCB, var outputCollector = combineProcMsgHandlers(msgCB,
proc(outMsg, errMsg: TaintedString, cmd: string): void {.closure.} = proc(outMsg, errMsg: TaintedString, cmd: string): void {.closure.} =
if outMsg != nil: outSeq.add(outMsg) if outMsg.len > 0: outSeq.add(outMsg)
if errMsg != nil: errSeq.add(errMsg)) if errMsg.len > 0: errSeq.add(errMsg))
result[2] = exec(command, workingDir, args, env, options, outputCollector) result[2] = exec(command, workingDir, args, env, options, outputCollector)
result[0] = outSeq.join("\n") result[0] = outSeq.join("\n")
@ -145,15 +147,15 @@ proc daemonize*(pidfile, si, so, se: string, daemonMain: proc(): void): Pid =
flushFile(stdout) flushFile(stdout)
flushFile(stderr) flushFile(stderr)
if not si.isNil and si != "": if si.len > 0:
fi = open(si, fmRead) fi = open(si, fmRead)
discard dup2(getFileHandle(fi), getFileHandle(stdin)) discard dup2(getFileHandle(fi), getFileHandle(stdin))
if not so.isNil and so != "": if so.len > 0:
fo = open(so, fmAppend) fo = open(so, fmAppend)
discard dup2(getFileHandle(fo), getFileHandle(stdout)) discard dup2(getFileHandle(fo), getFileHandle(stdout))
if not se.isNil and so != "": if se.len > 0:
fe = open(se, fmAppend) fe = open(se, fmAppend)
discard dup2(getFileHandle(fe), getFileHandle(stderr)) discard dup2(getFileHandle(fe), getFileHandle(stderr))
@ -172,14 +174,38 @@ proc daemonize*(pidfile, si, so, se: string, daemonMain: proc(): void): Pid =
return pid1 return pid1
proc termFG*(color: ForegroundColor, bright, bold = false): string = const termReset* = "\e[0;m"
proc termColor*(color: TermColor, bright, bold = false): string =
var colorVal = ord(color) var colorVal = ord(color)
if bright: inc(colorVal, 60) if bright: inc(colorVal, 60)
return "\e[" & $colorVal & (if bold: ";1" else: "") & "m" return "\e[" & $colorVal & (if bold: ";1" else: "") & "m"
proc termBG*(color: BackgroundColor, bright, bold = false): string = proc withColor*(str: string, color: TermColor, bright, bold = false): string =
var colorVal = ord(color) return termColor(color, bright, bold) & str
if bright: inc(colorVal, 60)
return "\e[" & $colorVal & "m"
const termReset* = "\e[0;m" let STRIP_ANSI_REGEX = re"\x1B\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]"
proc stripAnsi*(str: string): string = return str.replace(STRIP_ANSI_REGEX, "")
proc queryParamsToCliArgs*(queryParams: Table[string, string]): seq[string] =
result = @[]
for k,v in queryParams:
# support ?arg1=val1&arg2=val2 -> cmd val1 val2
if k.startsWith("arg"): result.add(v)
else :
result[1].add("--" & k)
if v != "true": result[1].add(v) # support things like ?verbose=true -> cmd --verbose
proc queryParamsToCliArgs*(queryParams: StringTableRef): seq[string] =
result = @[]
for k,v in queryParams:
# support ?arg1=val1&arg2=val2 -> cmd val1 val2
if k.startsWith("arg"): result.add(v)
else :
result[1].add("--" & k)
if v != "true": result[1].add(v) # support things like ?verbose=true -> cmd --verbose

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@ -1,11 +1,11 @@
# Package # Package
version = "0.4.0" version = "0.6.1"
author = "Jonathan Bernard" author = "Jonathan Bernard"
description = "Helper functions for writing command line interfaces." description = "Helper functions for writing command line interfaces."
license = "MIT" license = "MIT"
# Dependencies # Dependencies
requires @["nim >= 0.18.0", "docopt"] requires @["nim >= 0.19.0", "docopt >= 0.6.8"]