artifex | memory job queue for Golang using worker | Job Scheduling library

by mborders Go Version: v0.4.0 License: MIT

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | artifex Summary

artifex is a Go library typically used in Data Processing, Job Scheduling applications. artifex has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Simple in-memory job queue for Golang using worker-based dispatching. Cron jobs use the robfig/cron library:

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Support

artifex has a low active ecosystem.

It has 103 star(s) with 7 fork(s). There are 7 watchers for this library.

It had no major release in the last 12 months.

There are 0 open issues and 2 have been closed. On average issues are closed in 7 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of artifex is v0.4.0

Quality

artifex has no bugs reported.

Security

artifex has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

artifex is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

artifex releases are available to install and integrate.

Installation instructions are not available. Examples and code snippets are available.

Top functions reviewed by kandi - BETA

kandi has reviewed artifex and discovered the below as its top functions. This is intended to give you an instant insight into artifex implemented functionality, and help decide if they suit your requirements.

Start starts the dispatcher .
NewWorker creates a new Worker
NewDispatcher creates a new Dispatcher .

Get all kandi verified functions for this library.

artifex Key Features

No Key Features are available at this moment for artifex.

artifex Examples and Code Snippets

No Code Snippets are available at this moment for artifex.

Community Discussions

Trending Discussions on artifex

pdftex fails in a bash script

Ghostscript installed but not found RGhost::Config::GS[:path]='/path/to/my/gs'

Perform "which" bypassing aliases and functions

How to write EPS files using R on Windows 10 from end-to-end?

Rotate jpeg images in ghostscript

Adding bootstrap in Symfony 4

GS Firebase function can't set offset?

Converting a BMP to another file image type using GhostSCript

Ghostscript Fontmap not updating

Strange error on ghostscript conversion ps to pdf

QUESTION

pdftex fails in a bash script

Asked 2021-Feb-07 at 23:02

I have bash script that takes a booklet format PDF and converts it to separate pages. The script is called by php running under nginx.

I am using pdfcrop, which calls pdfTex, which is the point of failure.

The script runs fine as root from the command line. However, when run by nginx (the script is called via php) it fails when pdfcrop calls pdfTex.

Here is the line for the failure point:

...

ANSWER

Answered 2021-Feb-07 at 23:02

My original theory that pdfTex was not available to the nginx user was correct.

In my script, I logged the result of which pdftex. This command returned not found. The solution was to create a symlink to the pdftex script. I did this by adding the following to my script.

Source https://stackoverflow.com/questions/66044811

QUESTION

Ghostscript installed but not found RGhost::Config::GS[:path]='/path/to/my/gs'

Asked 2021-Jan-14 at 14:33

I've been trying for a few hours now solve this problem and I looked everywhere for a solution and I did not find one. I'm trying to run a spec test for my project and I have the following error coming up:

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ANSWER

Answered 2021-Jan-14 at 14:33

I managed to figure out a solution. Looking for the code for the Rghost, what I saw in its spec is that the path expected was different than the path the ghostscript really is. When I run whereis or which on my terminal, it returns:

Source https://stackoverflow.com/questions/65710644

QUESTION

Perform "which" bypassing aliases and functions

Asked 2020-Oct-27 at 09:31

$ command gs
GPL Ghostscript 8.70 (2009-07-31)
Copyright (C) 2009 Artifex Software, Inc.  All rights reserved.
This software comes with NO WARRANTY: see the file PUBLIC for details.
GPL Ghostscript 8.70: Cannot open X display `(null)'.
**** Unable to open the initial device, quitting.

$ which gs
alias gs='git status'
        /opt/rh/rh-git29/root/usr/bin/git

...

ANSWER

Answered 2020-Oct-27 at 09:29

I was working on a company machine. The comment from @Cyrus showed that which is aliased to alias. Doing this worked as it should have:

Source https://stackoverflow.com/questions/64551349

QUESTION

How to write EPS files using R on Windows 10 from end-to-end?

Asked 2020-Sep-25 at 10:02

It's that dreaded time of generating publication ready EPS files for a science manuscript submission. The data, line-art figures for plots, is in R (RStudio coupled with R version 4.02). I've meet this challenge before but on a very well populated Linux machine. Today, I am using x64 bit Windows 10 that was only installed four months ago.

The code is:

...

ANSWER

Answered 2020-Sep-23 at 22:09

Recent versions of Ghostscript (unfortunately you've trimmed off the version from stdout, but it's (C) 2020 so it must be fairly recent) have altered the default behaviour, because of security vulnerabilities. The default is now to run in SAFER mode (previously the default was NOSAFER). This means that PostScript programs are not permitted to open/read/write/delete files on disk.

It looks like the file you are running is encountering an invalidfileaccess error when trying to write a file. The filename it's trying to write '00002dc' isn't mentioned as the output file on the Ghostscript command line, and that's the only way Ghostscript has of inferring that a file access should be permitted. Basically if the file isn't named on the command line, and you haven't told GS that it has permission to read/write to the given directory, then it's not permitted to access that file.

You could try using -dNOSAFER, I've no real idea how to add this to gsprint, which is not part of Ghostscript, but possibly (reading the gsprint.htm file) -option "-dNOSAFER" might work.

I wouldn't really recommend that as a long-term solution though.

Source https://stackoverflow.com/questions/64029160

QUESTION

Rotate jpeg images in ghostscript

Asked 2020-Sep-11 at 10:56

I am converting .ps file to .jpeg file using ghostscript. But the output file should be rotated by 180 degree.

I am using the below command to rotate.

gswin64c.exe -sDEVICE=jpeg -dBATCH -dNOPAUSE -dSAFER -r300x300 -sOutputFile=E:\temp\test.jpg -dEPSCrop -c "<> setpagedevice" "E:\temp\myFile.ps.

Its giving below error:

GPL Ghostscript 9.10 (2013-08-30) Copyright (C) 2013 Artifex Software, Inc. All rights reserved. This software comes with NO WARRANTY: see the file PUBLIC for details. Error: /undefined in E:\temp\myFile.ps Operand stack:

Execution stack: %interp_exit .runexec2 --nostringval-- --nostringval-- --nostringval-

2 %stopped_push --nostringval-- --nostringval-- --nostringval-- fa lse 1 %stopped_push .runexec2 --nostringval-- --nostringval-- --nost ringval-- 2 %stopped_push --nostringval-- Dictionary stack: --dict:1182/1684(ro)(G)-- --dict:0/20(G)-- --dict:77/200(L)-- Current allocation mode is local Last OS error: No such file or directory GPL Ghostscript 9.10: Unrecoverable error, exit code 1

PS:- E:\temp\myFile.ps location and file exists in my system.

...

ANSWER

Answered 2020-Sep-11 at 10:56

You have started arbitrary PostScript by using the -c switch. From then on everything until the next switch is treated as PostScript.

Your command line does not include any '-' between the closing " and the input filename, so the input filename is treated as part of the PostScript program. Since there is no PostScript token 'E;\temp\myFile.ps' the interpreter gives you an undefined error.

Try putting a -f (-f means treat the next thing as a filename) after the "...setpagedevice".

That said, I'm dubious this will achieve what you want anyway, it depends on what's in the input file. You've used -dEPSCrop yet the filename has a .ps extension. Unless the file is really an EPS then EPSCrop won't have any effect. If it is an EPS then the media size will be the dimensions of the EPS BoundingBox and (I believe) the Orientation will be ignored. If the input file is not an EPS then the EPSCrop will be ignored.

You are using a very elderly version of Ghostscript (7 years old) you should really update.

Source https://stackoverflow.com/questions/63844972

QUESTION

Adding bootstrap in Symfony 4

Asked 2020-May-21 at 16:25

In my Symfony 4 project, I try to add bootstrap as an import after

...

ANSWER

Answered 2019-Oct-14 at 12:21

It seems I somehow solved the problem. First of all the import directory is this:

Source https://stackoverflow.com/questions/58366956

QUESTION

GS Firebase function can't set offset?

Asked 2020-May-17 at 09:54

I am using firebase functions to crop certain area of pdf and convert them to image using ghostscript [The wrapper https://www.npmjs.com/package/node-gs and compiled version of gs v9.2 "https://github.com/sina-masnadi/node-gs/tarball/master" ]

and this is the code i am using :

...

ANSWER

Answered 2020-Apr-03 at 07:17

In the absence of an example file (and ideally the actual command line being sent to Ghostscript) as well as the lack of the back channel output (stout and stderr) the only observation I can make is that the 'option' you refer to (actually a piece of PostScript programming) introduces PostScript input with the -c switch but does not terminate it with -f. That means anything which folows this on the comand line will be treated as more PostScript, which is likely to either lead to an error or a 'hang', awaiting more input.

Source https://stackoverflow.com/questions/61000236

QUESTION

Converting a BMP to another file image type using GhostSCript

Asked 2020-Jan-20 at 13:13

I have a .bmp image file, and always returns the error when i convert from a bitmap:

...

ANSWER

Answered 2020-Jan-20 at 13:13

Ghostscript doesn't process .bmp files, it accepts PDF or PostScript. You could write a PostScript program to place a .bmp image (see for example viewgif.ps) but that's not the same thing at all.

You need an image processing application such as ImageMagick, as suggested by Mark Setchell above.

Source https://stackoverflow.com/questions/59823833

QUESTION

Ghostscript Fontmap not updating

Asked 2019-Nov-21 at 09:46

I am currently trying to add some TrueType Fonts to my current Ghostscript setup. (Windows 10, Ghostscript 9.25, 64bit)

I am editing the Fontmap.GS file found in the folder C:\Program Files\gs\gs9.25\Resource\Init but somehow that doesn't change the behavior. Ghostscript is still substituting Arial-BoldMT with Helvetiva-BoldMT even though I have specified a font to use in that case:

...

ANSWER

Answered 2018-Oct-19 at 07:35

In older versions of Ghostscript we did not even ship the support files for Windows, 9.25 is the first (Windows) version where these files are actually installed without extra effort from the user.

The Windows version (and in fact all versions now) defaults to using a ROM file system. That is, the support files are compiled into the executable. What that means is that Ghostscript doesn't look at the disk files, unless you tell it to.

You need to add a -I (Include) directive to tell Ghostscript to look at the modified files on disk. In your case that would be :

Source https://stackoverflow.com/questions/52884449

QUESTION

Strange error on ghostscript conversion ps to pdf

Asked 2019-Sep-04 at 12:31

I am using linux (ubuntu 9.26) version of ghostscript. When I try to convert the postscript file into pdf using the following:

$ gs -dNOPAUSE -dBATCH -sOutputFile=test.pdf -sDEVICE=pdfwrite -c . setpdfwrite -f d00040-001.ps

The output I get is the following:

...

ANSWER

Answered 2019-Sep-04 at 12:31

Leave out the "-c . setpdfwrite -f" from your command line.

Source https://stackoverflow.com/questions/57787990

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