how to alias the current folder - command-line

How can I alias the output of this command?
[basename "$PWD"]
I basically want to be able to to do
git browse [basename "$PWD"]

You can run this directly: git browse "$(basename $PWD)"
Or, you could alias it:
alias browsepwd='git browse "$(basename "$PWD")"'
Or, you could write a bash function
function bnpwd() {
basename $PWD
}
Then you can run git browse "$(bnpwd)".
Or any combination of the above ;)

I'm not familiar with git browse, but I suspect what you want is this:
git browse .
Your original concept seems a little flawed to me for this reason - suppose my git repository is in /usr/local/projects/widgets. If I cd /usr/local/projects/widgets, then $PWD will be /usr/local/projects/widgets, and basename $PWD will report widgets. Unless my project has a subdirectory widgets, git browse $(basename $PWD) probably isn't right, and even if such a subdirectory does exist, I would guess the result wouldn't be exactly what is expected. On the other hand, depending on exactly git browse does with its arguments, git browse . is probably essentially equivalent to git browse $PWD. They at least reference the same directory.

Related

ClearCase - How to list all checkout that may conflict with mine?

I am working on a script that will update a bunch of files in a given ClearCase folder. Before to start, I want to check in the script if any checkout that will be performed during the process may fail (because of another checkout). The script does not know the config spec in use.
The basic idea based on cleartool lsco -rec cannot work because of the many false-positive result (mostly, checkout done on a not selected branch, or unreserved checkout).
So the question is: How can I list all file that I cannot checkout because of another checkout that will conflict with mine?
Thanks in advance for your help!
"The basic idea based on cleartool lsco -rec cannot work"
Yet it should work.
You can compare cleartool lsco -brtype abranch -me and cleartool lsco -brtype abranch in order to see other checkouts done on the target branch, not by you.
You can |grep -v unreserved to trim out any unreserved checkout.
The end result is the list of files, checkout not by you, reserved.
You can then compare that list with the files your script has to modify.
If you're using a classic-UCM environment, this would generally not happen if you're not working in a shared stream. So, I'm going to assume you are working in base clearcase.
One way to check this would be to look at the version trees of the files you plan on checking out. However, to automate it, you would need to also know what branch you're working on.
For a single file:
Windows:
cleartool lsvtree {my file} | findstr CHECKEDOUT
Unix
cleartool lsvtree {my file} | grep CHECKEDOUT
Any CHECKEDOUT returns on your branch (which may be /main if you're not doing parallel development) would block you.
If you have a list of files, it would depend on how you want to process that list.

How to change (CQ5) VLT repo url/port?

I have checked out vlt repo using:
vlt co http://localhost:4502/crx/-/jcr:root path/to/repo --force
But now, my CQ instance changed location (port). Is there a way to set new URL(port) to vlt?
(without checking out again)
I have tried unzipping path/to/repo/.vlt and changing repository.url file sometimes it works, but in most cases it breaks local repo, or I'm unable to unzip.
I understand you're looking for something like the "svn relocate" command. This is not possible with the VLT tool directly.
Options (any one of these should do it):
I recommend checking out a new copy of the repository and reapplying the changes that show from running "vlt status" over there.
Set up a new CQ server on the old port, then use "vlt rcp". The process would probably be: copy the whole repository from old to new server, push your local stuff to the new server, copy part of the tree from new to old.
The repository.url setting is nested in .vlt files under all subdirectories of the repository. You could try a global/recursive search & replace for all of these. I've never tried this though. For example, something like this: (I get permission denied running this, needs more work.)
find -name .vlt -type f -print0 | xargs -0 sed -i 's/localhost:4502/localhost:4503/g'
Remove all the .vlt files and use the vlt import/export commands to load. See the "Using import/export instead of .vlt control" section of this document: http://wem.help.adobe.com/enterprise/en_US/10-0/core/how_to/how_to_use_the_vlttool.html

Referring to the current bookmark in mercurial

I am using bookmarks in mercurial to emulate a git branches-like workflow.
One thing I'm finding is that whenever I push, I invariably want to push just the current bookmark. Rather than typing
hg push -B <bookmark_name>
all the time, I'd like to alias hg push to just push the current bookmark. To do that, I need a way of referring to the current bookmark without mentioning its name. Is there a way to do that?
I understand it was asked two years ago, but I found this page in Google and none of the answers helped. So here's what did the trick for me (Linux):
[alias]
currentbranch = !cd `$HG root` && cat .hg/bookmarks.current
pushb = !$HG push -B `$HG currentbranch`
cd is required for this to work from non-root directories.
Current bookmark name stored in .hg/bookmarks.current file of your repository. As an alias you can use something like this:
pushb = push -B `cat .hg/bookmarks.current`
Also note that when you update you repository state to any other revision, there won't be file .hg/bookmarks.current.
OK, platform independent solution, somehow ugly
pushb = push -B `hg log --template "{bookmarks}\n" -r "bookmark() & ."`
or, with nested command in more natural way it must be: hg parents --template="{bookmarks}\n"
Ugly because pure Mercurial-way using nested shell-aliases in hgrc
[alias]
cb = !$HG log --template "{bookmarks}\n" -r "bookmark() & ."
pushb = push -B cb
does not work for me
>hg pushb
...
bookmark cb does not exist on the local or remote repository!
Edit
Long time later, with new solution. According to hg help push
If -B/--bookmark is used, the specified bookmarked revision, its
ancestors, and the bookmark will be pushed to the remote repository.
Specifying "." is equivalent to specifying the active bookmark's name.
if order to "push the current bookmark" you can use just
hg push -B .
This works for me (and handles bookmarks with spaces):
alias pushb="hg push -B \"\$(hg bookmarks 2> /dev/null | awk '/\*/ { \$1=\"\"; \$NF=\"\"; printf }' | sed 's/^[[:space:]]*//;s/[[:space:]]*$//')\""
You can use a shell call substitution:
hg push -B `hg bookmark --active`
This can be put into an alias (see alias section of hg help config)

Creating a script that compares multiple files in multiple servers

I have several different linux servers, all of which are essentially mirrors of each other. However, some of them have gone out of sync (file A in machine 1 is different from file B in machine 2).
I'm in the process of designing a script (shell or Perl only) that will systematically walk through certain directories and diff the corresponding files in the different machines against each other, and generate a meaningful report. Later on, I will try to sync up the files.
These are my thoughts so far on how to approach this:
sftp files to /tmp and diff locally
using ssh and diff
using rsync
My question is: what is the best way to systematically compare two files that are in different machines (but similar directory structure), and are there any built-in Perl utilities that may be helpful?
rsync will figure out the difference and sync your files by sending only the diff. Once two folders get synced, it will be pretty quick. (But the 1st time to sync will take some time)
You can also use git here. One possible workflow: just checkin all files you want to compare (or complete directories using git add -A). Then create an empty git repository on your local workstation which is used fetch all the other repositories, and which is used to do the comparisons:
git init
git remote add firstmachine ssh://user#firstmachine/path/to/directory
git remote add othermachine ssh://user#othermachine/path/to/directory
git fetch --all
Now the contents of two machines may be compared:
git diff remotes/firstmachine/master remotes/othermachine/master
Or just compare the contents of a specific file:
git diff remotes/firstmachine/master remotes/othermachine/master -- file/to/compare
It's not strictly necessary to use a third machine for the comparisons. You can also git-fetch the contents from othermachine to firstmachine.
I had worked on a similar tool (which was in python). What it did was, run a cron job, at a given time of the night, which would bring the tar bzipped files to one server, extract the directories and run a recursive diff on it. The diff output was then run through some python scripts, which would analyse the diff hunks (+ lines/! lines etc) to know the amount of change.
Not sure if there are pre-built modules in Perl or Python, but some helper utils might sure be available in one of them.
If you need to know the difference between some local and remote file systems, the following method minimizes the network load:
make a local copy ($C) of the local directory ($D) you want to compare. I.e.:
cp -R $D $C
use rsync to copy the remote directory ($R) you want to compare over $C:
rsync -av --delete $remote_host:$R $C
compare $D to $C:
diff -u $D $C

How to find untracked files in a Perforce tree? (analogue of svn status)

Anybody have a script or alias to find untracked (really: unadded) files in a Perforce tree?
EDIT: I updated the accepted answer on this one since it looks like P4V added support for this in the January 2009 release.
EDIT: Please use p4 status now. There is no need for jumping through hoops anymore. See #ColonelPanic's answer.
In the Jan 2009 version of P4V, you can right-click on any folder in your workspace tree and click "reconcile offline work..."
This will do a little processing then bring up a split-tree view of files that are not checked out but have differences from the depot version, or not checked in at all. There may even be a few other categories it brings up.
You can right-click on files in this view and check them out, add them, or even revert them.
It's a very handy tool that's saved my ass a few times.
EDIT: ah the question asked about scripts specifically, but I'll leave this answer here just in case.
On linux, or if you have gnu-tools installed on windows:
find . -type f -print0 | xargs -0 p4 fstat >/dev/null
This will show an error message for every unaccounted file. If you want to capture that output:
find . -type f -print0 | xargs -0 p4 fstat >/dev/null 2>mylogfile
Under Unix:
find -type f ! -name '*~' -print0| xargs -0 p4 fstat 2>&1|awk '/no such file/{print $1}'
This will print out a list of files that are not added in your client or the Perforce depot. I've used ! -name '*~' to exclude files ending with ~.
Ahh, one of the Perforce classics :) Yes, it really sucks that there is STILL no easy way for this built into the default commands.
The easiest way is to run a command to find all files under your clients root, and then attempt to add them to the depot. You'll end up with a changelist of all new files and existing files are ignored.
E.g dir /s /b /A-D | p4 -x - add
(use 'find . -type f -print' from a nix command line).
If you want a physical list (in the console or file) then you can pipe on the results of a diff (or add if you also want them in a changelist).
If you're running this within P4Win you can use $r to substitute the client root of the current workspace.
Is there an analogue of svn status or git status?
Yes, BUT.
As of Perforce version 2012.1, there's the command p4 status and in P4V 'reconcile offline work'. However, they're both very slow. To exclude irrelevant files you'll need to write a p4ignore.txt file per https://stackoverflow.com/a/13126496/284795
2021-07-16: THIS ANSWER MAY BE OBSOLETE.
I am reasonably sure that it was accurate in 2016, for whatever version of Perforce I was using them (which was not necessarily the most current). But it seems that this problem or design limitation has been remedied in subsequent releases of Perforce. I do not know what the stack overflow etiquette for this is -- should this answer be removed?
2016 ANSWER
I feel impelled to add an answer, since the accepted answer, and some of the others, have what I think is a significant problem: they do not understand the difference between a read-only query command, and a command that makes changes.
I don't expect any credit for this answer, but I hope that it will help others avoid wasting time and making mistakes by following the accepted but IMHO incorrect answer.
---+ BRIEF
Probably the most convenient way to find all untracked files in a perforce workspace is p4 reconcile -na.
-a says "give me files that are not in the repository, i.e. that should be added".
-n says "make no changes" - i.e. a dry-run. (Although the messages may say "opened for add", mentally you must interpret that as "would be opened for add if not -n")
Probably the most convenient way to find all local changes made while offline - not just files that might need to be added, but also files that might need to be deleted, or which have been changed without being opened for editing via p4 edit, is p4 reconcile -n.
Several answers provided scripts, often involving p4 fstat. While I have not verified all of those scripts, I often use similar scripts to make up for the deficiencies of perforce commands such as p4 reconcile -n - e.g. often I find that I want local paths rather than Perforce depot paths or workspace paths.
---+ WARNING
p4 status is NOT the counterpart to the status commands on other version control systems.
p4 status is NOT a read-only query. p4 status actually finds the same sort of changes that p4 reconcile does, and adds them to the repository. p4 status does not seem to have a -n dry-run option like p4 reconcile does.
If you do p4 status, look at the files and think "Oh, I don't need those", then you will have to p4 revert them if you want to continue editing in the same workspace. Or else the changes that p4 status added to your changeset will be checked in the next time.
There seems to be little or no reason to use p4 status rather than p4 reconcile -n, except for some details of local workspace vs depot pathname.
I can only imagine that whoever chose 'status' for a non-read-only command had limited command of the English language and other version control tools.
---+ P4V GUI
In the GUI p4v, the reconcile command finds local changes that may need to be added, deleted, or opened for editing. Fortunately it does not add them to a changelist by default; but you still may want to be careful to close the reconcile window after inspecting it, if you don't want to commit the changes.
Alternatively from P4Win, use the ""Local Files not in Depot" option on the left hand view panel.
I don't use P4V much, but I think the equivalent is to select "Hide Local Workspace Files" in the filter dropdown of the Workspace view tab.p4 help fstat
In P4V 2015.1 you'll find these options under the filter button like this:
I use the following in my tool that backs up any files in the workspace that differ from the repository (for Windows). It handles some odd cases that Perforce doesn't like much, like embedded blanks, stars, percents, and hashmarks:
dir /S /B /A-D | sed -e "s/%/%25/g" -e "s/#/%40/g" -e "s/#/%23/g" -e "s/\*/%2A/g" | p4 -x- have 1>NUL:
"dir /S /B /A-D" lists all files at or below this folder (/S) in "bare" format (/B) excluding directories (/A-D). The "sed" changes dangerous characters to their "%xx" form (a la HTML), and the "p4 have" command checks this list ("-x-") against the server discarding anything about files it actually locates in the repository ("1>NUL:"). The result is a bunch of lines like:
Z:\No_Backup\Workspaces\full\depot\Projects\Archerfish\Portal\Main\admin\html\images\nav\navxx_background.gif - file(s) not on client.
Et voilĂ !
Quick 'n Dirty: In p4v right-click on the folder in question and add all files underneath it to a new changelist. The changelist will now contain all files which are not currently part of the depot.
The following commands produce status-like output, but none is quite equivalent to svn status or git status, providing a one-line summary of the status of each file:
p4 status
p4 opened
p4 diff -ds
I don't have enough reputation points to comment, but Ross' solution also lists files that are open for add. You probably do not want to use his answer to clean your workspace.
The following uses p4 fstat (thanks Mark Harrison) instead of p4 have, and lists the files that aren't in the depot and aren't open for add.
dir /S /B /A-D | sed -e "s/%/%25/g" -e "s/#/%40/g" -e "s/#/%23/g" -e "s/\*/%2A/g" | p4 -x- fstat 2>&1 | sed -n -e "s/ - no such file[(]s[)]\.$//gp"
===Jac
Fast method, but little orthodox. If the codebase doesn't add new files / change view too often, you could create a local 'git' repository out of your checkout. From a clean perforce sync, git init, add and commit all files locally. Git status is fast and will show files not previously committed.
The p4 fstat command lets you test if a file exists in the workspace, combine with find to locate files to check as in the following Perl example:
// throw the output of p4 fstat to a 'output file'
// find:
// -type f :- only look at files,
// -print0 :- terminate strings with \0s to support filenames with spaces
// xargs:
// Groups its input into command lines,
// -0 :- read input strings terminated with \0s
// p4:
// fstat :- fetch workspace stat on files
my $status=system "(find . -type f -print0 | xargs -0 p4 fstat > /dev/null) >& $outputFile";
// read output file
open F1, $outputFile or die "$!\n";
// iterate over all the lines in F1
while (<F1>) {
// remove trailing whitespace
chomp $_;
// grep lines which has 'no such file' or 'not in client'
if($_ =~ m/no such file/ || $_ =~ m/not in client/){
// Remove the content after '-'
$_=~ s/-\s.*//g;
// below line is optional. Check ur output file for more clarity.
$_=~ s/^.\///g;
print "$_\n";
}
}
close F1;
Or you can use p4 reconcile -n -m ...
If it is 'opened for delete' then it has been removed from the workspace. Note that the above command is running in preview mode (-n).
I needed something that would work in either Linux, Mac or Windows. So I wrote a Python script for it. The basic idea is to iterate through files and execute p4 fstat on each. (of course ignoring dependencies and tmp folders)
You can find it here: https://gist.github.com/givanse/8c69f55f8243733702cf7bcb0e9290a9
This command can give you a list of files that needs to be added, edited or removed:
p4 status -aed ...
you can use them separately too
p4 status -a ...
p4 status -e ...
p4 status -d ...
In P4V, under the "View" menu item choose "Files in Folder" which brings up a new tab in the right pane.
To the far right of the tabs there is a little icon that brings up a window called "Files in Folder" with 2 icons.
Select the left icon that looks like a funnel and you will see several options. Choose "Show items not in Depot" and all the files in the folder will show up.
Then just right-click on the file you want to add and choose "Mark for Add...". You can verify it is there in the "Pending" tab.
Just submit as normal (Ctrl+S).