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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘Mercurial/Hg’ Category

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When you broke code, finding back where it got broken is easier if you have small change increment (i.e. bisection and binary tree search)

Posted by jpluimers on 2024/09/26

A while ago [Wayback/Archive] b0rk (Julia Evans [Wayback/Archive) wrote an interesting Tweet on finding back where you broke code of which the OCR text reads like this:

strategy: change working code into broken code

If I have a working version of the program, I like to:

  1. go back to the working code
  2. slowly start changing it to be more like my broken code
  3. test if it’s still working after every single tiny change
·      ⬊⸳⬈˙⬊⸳⬈˙⬊⸳              OH THAT’S WHAT BROKE IT!!!

I like this because it puts me back on solid ground: with every change make that DOESN’T cause the bug to come back, I know that wasn’t the problem.

by JULIA EVANS @bork wizardzines.com

This is similar (her arrows were of varying length) to using a binary search algorithm hunting for where the code was broken using bisection: repeatedly halving your search space to quickly zoom into the problem.

Another important aspect is that small commits while fiddling to solve an issue can help you determine what small commit was actually solving the issue.

Read the rest of this entry »

Posted in Algorithms, Conference Topics, Conferences, Development, DVCS - Distributed Version Control, Event, git, Mercurial/Hg, Ruby, Software Development, Source Code Management, Versioning | Leave a Comment »

Mercurial Bitbucket Archive | Index – the “lost” repositories after Atlassian stopped supporting Hg

Posted by jpluimers on 2024/04/04

Bitbucket nuked all Mercurial repositories in 2020 in the midst of my cancer treatment so back then I wrote Sunsetting Mercurial support in Bitbucket – Bitbucket

So I am glad there is [Wayback/Archive] Mercurial Bitbucket Archive | Index

This is the archive of all public Mercurial projects that were hosted on Bitbucket before they [Wayback/Archive] removed Mercurial support on July 1, 2020. Some projects might be unavailable or incomplete because they were deleted or made private before we had a chance to archive them.

Read the rest of this entry »

Posted in BitBucket, Development, DVCS - Distributed Version Control, Mercurial/Hg, Source Code Management | Leave a Comment »

Fixing hg.exe “ImportError: DLL load failed: %1 is not a valid Win32 application.”

Posted by jpluimers on 2021/07/21

If you get the below error when running hg.exe, then you are mixing a 64-bit Mercurial with 32-bit dependencies:

C:\>hg --version
Traceback (most recent call last):
  File "hg", line 43, in 
  File "hgdemandimport\demandimportpy2.pyc", line 150, in __getattr__
  File "hgdemandimport\demandimportpy2.pyc", line 94, in _load
  File "hgdemandimport\demandimportpy2.pyc", line 43, in _hgextimport
  File "mercurial\dispatch.pyc", line 22, in 
  File "hgdemandimport\demandimportpy2.pyc", line 248, in _demandimport
  File "hgdemandimport\demandimportpy2.pyc", line 43, in _hgextimport
  File "mercurial\i18n.pyc", line 28, in 
  File "hgdemandimport\demandimportpy2.pyc", line 150, in __getattr__
  File "hgdemandimport\demandimportpy2.pyc", line 94, in _load
  File "hgdemandimport\demandimportpy2.pyc", line 43, in _hgextimport
  File "mercurial\encoding.pyc", line 24, in 
  File "mercurial\policy.pyc", line 101, in importmod
  File "mercurial\policy.pyc", line 63, in _importfrom
  File "hgdemandimport\demandimportpy2.pyc", line 164, in __doc__
  File "hgdemandimport\demandimportpy2.pyc", line 94, in _load
  File "hgdemandimport\demandimportpy2.pyc", line 43, in _hgextimport
  File "mercurial\cext\parsers.pyc", line 12, in 
  File "mercurial\cext\parsers.pyc", line 10, in __load
ImportError: DLL load failed: %1 is geen geldige Win32-toepassing.

The equivalent English error is [WayBack] “ImportError: DLL load failed: %1 is not a valid Win32 application.” – Google Search.

The problem is the bitness of hg.exe: [WayBack] python – Error while installing Mercurial on IIS7 64bit: “DLL Load Failed: %1 is not a valid Win32 application” – Stack Overflow

You can quickly figure out the bitness of hg.exe:

C:\>where hg
C:\Program Files\Mercurial\hg.exe

C:\>sigcheck "C:\Program Files\Mercurial\hg.exe"

Sigcheck v2.72 - File version and signature viewer
Copyright (C) 2004-2019 Mark Russinovich
Sysinternals - www.sysinternals.com

c:\program files\mercurial\hg.exe:
        Verified:       Unsigned
        Link date:      17:49 9-7-2019
        Publisher:      n/a
        Company:        n/a
        Description:    Fast scalable distributed SCM (revision control, version control) system
        Product:        mercurial
        Prod version:   5.0.2
        File version:   5.0.2
        MachineType:    64-bit

Forcing x86 of Mercurial

Since I use chocolatey for most my installs, I forced x86 the Chocolatey way:

So after these:

choco uninstall --yes hg
choco install --yes --force86 hg

I got this signature check:

C:\>sigcheck "C:\Program Files (x86)\Mercurial\hg.exe"

Sigcheck v2.72 - File version and signature viewer
Copyright (C) 2004-2019 Mark Russinovich
Sysinternals - www.sysinternals.com

c:\program files (x86)\mercurial\hg.exe:
        Verified:       Unsigned
        Link date:      17:50 9-7-2019
        Publisher:      n/a
        Company:        n/a
        Description:    Fast scalable distributed SCM (revision control, version control) system
        Product:        mercurial
        Prod version:   5.0.2
        File version:   5.0.2
        MachineType:    32-bit

–jeroen

Posted in Development, DVCS - Distributed Version Control, Encoding, Mercurial/Hg, Python, Scripting, Software Development, Source Code Management | Leave a Comment »

How to Convert a Mercurial Repository to Git on Windows

Posted by jpluimers on 2021/03/30

For my link archive: [WayBack] How to Convert a Mercurial Repository to Git on Windows.

Let’s see how this maps to MacOS or Linux…

It is based on hg-git:

Other solutions are based on  [WayBack]fast-export or [WayBack] gitifyhg.

If I am going to do this beyond a one-off conversion, I need to figure out their differences.

Related:

 

–jeroen

Posted in Development, DVCS - Distributed Version Control, git, Mercurial/Hg, Software Development, Source Code Management | Leave a Comment »

A choco install list

Posted by jpluimers on 2021/02/03

Sometimes I forget the choco install mnemonics for various tools, so here is a small list below.

Of course you have to start with an administrative command prompt, and have a basic Chocolatey Installation in place.

If you want to clean cruft:

choco install --yes choco-cleaner

Basic install:

choco install --yes 7zip
choco install --yes everything
choco install --yes notepadplusplus
choco install --yes beyondcompare
choco install --yes git.install --params "/GitAndUnixToolsOnPath /NoGitLfs /SChannel /NoAutoCrlf /WindowsTerminal"
choco install --yes hg
choco install --yes sourcetree
choco install --yes sysinternals

For VMs (pic one):

choco install --yes vmware-tools
choco install --yes virtio-drivers

For browsing (not sure yet about Chrome as that one has a non-admin installer as well):

choco install --yes firefox

For file transfer (though be aware that some versions of Filezilla contained adware):

choco install --yes filezilla
choco install --yes winscp

For coding:

choco install --yes vscode
choco install --yes atom

For SQL server:

choco install --yes sql-server-management-studio

For web development / power user:

choco install --yes fiddler

For SOAP and REST:

choco install --yes soapui

If you don’t like manually downloading SequoiaView at gist.github.com/jpluimers/b0df9c2dba49010454ca6df406bc5f3d (e8efd031d667de8a1808d6ea73548d77949e7864.zip):

choco install --yes windirstat

For drawing, image manipulation (paint.net last, as it needs a UI action):

choco install --yes gimp
choco install --yes imagemagick
choco install --yes paint.net

For ISO image mounting in pre Windows 10:

choco install --yes wincdemu

For hard disk management:

choco install --yes hdtune
choco install --yes seatools
choco install --yes speedfan

For Fujitsu ScanSnap scanners (not sure yet this includes PDF support):

choco install --yes scansnapmanager

–jeroen

Posted in 7zip, atom editor, Beyond Compare, Chocolatey, Compression, Database Development, Development, DVCS - Distributed Version Control, Everything by VoidTools, Fiddler, Firefox, Fujitsu ScanSnap, git, Hardware, Mercurial/Hg, Power User, Scanners, SOAP/WebServices, Software Development, Source Code Management, SQL Server, SSMS SQL Server Management Studio, SysInternals, Text Editors, Versioning, Virtualization, VMware, VMware ESXi, vscode Visual Studio Code, Web Browsers, Web Development, Windows | Leave a Comment »

Sunsetting Mercurial support in Bitbucket – Bitbucket

Posted by jpluimers on 2020/01/30

February 1st, the start commences of Sunsetting Mercurial support in Bitbucket – Bitbucket [WayBack]. Starting June 1st, only git is supported by Bitbucket, despite them having started with and focused mainly Mercurial at first.

Here are the major dates of the sunset:

  • February 1, 2020: users will no longer be able to create new Mercurial repositories
  • June 1, 2020: users will not be able to use Mercurial features in Bitbucket or via its API and all Mercurial repositories will be removed.

All current Mercurial functionality in Bitbucket will be available through May 31, 2020.

So by now you should have started migrating from Mercurial to git, probably away from BitBucket.

Read the rest of this entry »

Posted in BitBucket, Development, DVCS - Distributed Version Control, git, Mercurial/Hg, Software Development, Source Code Management | Leave a Comment »

Unorthodocs: Abandon your DVCS and Return to Sanity – bitquabit

Posted by jpluimers on 2019/11/21

Some interesting thoughts on DVCS: [WayBack] Unorthodocs: Abandon your DVCS and Return to Sanity – bitquabit

Besides the very good point it raises about DVCS (Git, Mercurial and most other DVCSes treat the whole state of the repository as the atom) it also indicates quite a few shortcomings:

  • most people hardly ever need the full history to be off-line
  • having the full history means repositories get huge in size, including your off-line clone
  • pseudo-solutions for huge repository sizes – like git-LFS or git-annex – are a no-go because now you loose atomicity
  • huge repositories in file or commit counts make them slow, especially when the trees are deep
  • splitting up repositories isn’t a good idea either because again: you loose atomicity
  • all DVCS are hard, not just git, because they are distributed and full of features
  • the workflow for submitting pull requests is quite a bit longer than submitting a patch, even though merging in a DVCS can be hard too (despite atomicity which does help a lot for DVCS systems)

I see many other advantages of DVCS systems (for instance that you only need to locally have the branches you are interested in, way better tooling for DVCS systems, ditto for sites hosting DVCS), but it always a good thing to know the weak spots of what you are working with.

–jeroen

Posted in Development, DVCS - Distributed Version Control, git, Mercurial/Hg, Software Development, Source Code Management | Leave a Comment »

Reminder to self: make a list of URL suffixes to show branch diagrams of repositories

Posted by jpluimers on 2018/12/18

One of the BitBucket features I like a lot is that in the commit history, you see the branches involved in a nice diagram on the left side of the commits: https://bitbucket.org/pypy/pypy/commits

BitBucket used to be popular to host public repositories, but from a public perspective, they are on the decline for that (they even removed the [once popular] bitbucket.org/explore page and [WayBack] will not re-introduce it).

Right now, only major git based hosters still have explore pages:

So it makes sense to see where they provide diagrams of branches, so here are some examples to go from a project to the graph:

–jeroen

Posted in BitBucket, Development, DVCS - Distributed Version Control, git, GitHub, GitLab, Mercurial/Hg, Software Development, Source Code Management | Leave a Comment »

acaudwell/Gource: software version control visualization

Posted by jpluimers on 2018/04/11

[WayBack] Gource – software version control visualization has example for these kinds of repositories: Git, Bazaar, Mercurial and SVN.

Source: acaudwell/Gource: software version control visualization

Cool tool (works on Windows and Linux) that I found via [WayBack] Juancarlo Añez – Google+

–jeroen

Posted in Development, DVCS - Distributed Version Control, git, Mercurial/Hg, Software Development, Source Code Management, Subversion/SVN | Leave a Comment »

Using BC4 OSX with Version Control Systems

Posted by jpluimers on 2017/08/10

A great thread about Using BC4 OSX with Version Control Systems, -Tools and IDEs.

Some highlights:

–jeroen

Posted in Beyond Compare, CVS, Development, DVCS - Distributed Version Control, git, Mercurial/Hg, Power User, Software Development, Source Code Management, SourceTree, Subversion/SVN, TFS (Team Foundation System) | Leave a Comment »

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