Marc Cornellà
commit
85d949550b
@ -6,7 +6,7 @@ NAME
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z - jump around
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SYNOPSIS
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z [-chlrt] [regex1 regex2 ... regexn]
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z [-chlrtx] [regex1 regex2 ... regexn]
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AVAILABILITY
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bash, zsh
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@ -15,10 +15,13 @@ DESCRIPTION
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Tracks your most used directories, based on 'frecency'.
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After a short learning phase, z will take you to the most 'frecent'
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directory that matches ALL of the regexes given on the command line.
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directory that matches ALL of the regexes given on the command line, in
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order.
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For example, z foo bar would match /foo/bar but not /bar/foo.
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OPTIONS
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-c restrict matches to subdirectories of the current directory.
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-c restrict matches to subdirectories of the current directory
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-h show a brief help message
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@ -28,10 +31,12 @@ OPTIONS
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-t match by recent access only
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-x remove the current directory from the datafile
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EXAMPLES
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z foo cd to most frecent dir matching foo
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z foo bar cd to most frecent dir matching foo and bar
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z foo bar cd to most frecent dir matching foo, then bar
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z -r foo cd to highest ranked dir matching foo
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@ -55,8 +60,9 @@ NOTES
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Set $_Z_NO_RESOLVE_SYMLINKS to prevent symlink resolution.
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Set $_Z_NO_PROMPT_COMMAND to handle PROMPT_COMMAND/precmd your-
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self.
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Set $_Z_EXCLUDE_DIRS to an array of directories to exclude.
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(These settings should go in .bashrc/.zshrc before the lines
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Set $_Z_EXCLUDE_DIRS to an array of directory trees to exclude.
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Set $_Z_OWNER to allow usage when in 'sudo -s' mode.
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(These settings should go in .bashrc/.zshrc before the line
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added above.)
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Install the provided man page z.1 somewhere like
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/usr/local/man/man1.
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@ -64,12 +70,12 @@ NOTES
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Aging:
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The rank of directories maintained by z undergoes aging based on a sim-
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ple formula. The rank of each entry is incremented every time it is
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accessed. When the sum of ranks is greater than 6000, all ranks are
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multiplied by 0.99. Entries with a rank lower than 1 are forgotten.
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accessed. When the sum of ranks is over 9000, all ranks are multiplied
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by 0.99. Entries with a rank lower than 1 are forgotten.
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Frecency:
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Frecency is a portmantaeu of 'recent' and 'frequency'. It is a weighted
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rank that depends on how often and how recently something occured. As
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Frecency is a portmanteau of 'recent' and 'frequency'. It is a weighted
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rank that depends on how often and how recently something occurred. As
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far as I know, Mozilla came up with the term.
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To z, a directory that has low ranking but has been accessed recently
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@ -107,16 +113,19 @@ ENVIRONMENT
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resolving of symlinks. If it is not set, symbolic links will be
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resolved when added to the datafile.
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In bash, z prepends a command to the PROMPT_COMMAND environment vari-
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able to maintain its database. In zsh, z appends a function _z_precmd
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to the precmd_functions array.
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In bash, z appends a command to the PROMPT_COMMAND environment variable
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to maintain its database. In zsh, z appends a function _z_precmd to the
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precmd_functions array.
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The environment variable $_Z_NO_PROMPT_COMMAND can be set if you want
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to handle PROMPT_COMMAND or precmd yourself.
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The environment variable $_Z_EXCLUDE_DIRS can be set to an array of
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directories to exclude from tracking. $HOME is always excluded. Direc-
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tories must be full paths without trailing slashes.
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directory trees to exclude from tracking. $HOME is always excluded.
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Directories must be full paths without trailing slashes.
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The environment variable $_Z_OWNER can be set to your username, to
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allow usage of z when your sudo enviroment keeps $HOME set.
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FILES
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Data is stored in $HOME/.z. This can be overridden by setting the
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@ -4,7 +4,7 @@ NAME
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z \- jump around
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.SH
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SYNOPSIS
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z [\-chlrt] [regex1 regex2 ... regexn]
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z [\-chlrtx] [regex1 regex2 ... regexn]
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.SH
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AVAILABILITY
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bash, zsh
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@ -13,12 +13,14 @@ DESCRIPTION
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Tracks your most used directories, based on 'frecency'.
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.P
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After a short learning phase, \fBz\fR will take you to the most 'frecent'
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directory that matches ALL of the regexes given on the command line.
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directory that matches ALL of the regexes given on the command line, in order.
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For example, \fBz foo bar\fR would match \fB/foo/bar\fR but not \fB/bar/foo\fR.
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.SH
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OPTIONS
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.TP
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\fB\-c\fR
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restrict matches to subdirectories of the current directory.
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restrict matches to subdirectories of the current directory
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.TP
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\fB\-h\fR
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show a brief help message
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@ -31,13 +33,16 @@ match by rank only
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.TP
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\fB\-t\fR
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match by recent access only
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.TP
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\fB\-x\fR
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remove the current directory from the datafile
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.SH EXAMPLES
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.TP 14
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\fBz foo\fR
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cd to most frecent dir matching foo
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.TP 14
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\fBz foo bar\fR
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cd to most frecent dir matching foo and bar
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cd to most frecent dir matching foo, then bar
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.TP 14
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\fBz -r foo\fR
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cd to highest ranked dir matching foo
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@ -76,10 +81,13 @@ Set \fB$_Z_NO_RESOLVE_SYMLINKS\fR to prevent symlink resolution.
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Set \fB$_Z_NO_PROMPT_COMMAND\fR to handle \fBPROMPT_COMMAND/precmd\fR yourself.
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.RE
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.RS
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Set \fB$_Z_EXCLUDE_DIRS\fR to an array of directories to exclude.
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Set \fB$_Z_EXCLUDE_DIRS\fR to an array of directory trees to exclude.
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.RE
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.RS
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(These settings should go in .bashrc/.zshrc before the lines added above.)
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Set \fB$_Z_OWNER\fR to allow usage when in 'sudo -s' mode.
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.RE
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.RS
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(These settings should go in .bashrc/.zshrc before the line added above.)
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.RE
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.RS
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Install the provided man page \fBz.1\fR somewhere like \fB/usr/local/man/man1\fR.
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@ -88,12 +96,12 @@ Install the provided man page \fBz.1\fR somewhere like \fB/usr/local/man/man1\fR
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Aging:
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The rank of directories maintained by \fBz\fR undergoes aging based on a simple
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formula. The rank of each entry is incremented every time it is accessed. When
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the sum of ranks is greater than 6000, all ranks are multiplied by 0.99. Entries
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with a rank lower than 1 are forgotten.
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the sum of ranks is over 9000, all ranks are multiplied by 0.99. Entries with a
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rank lower than 1 are forgotten.
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.SS
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Frecency:
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Frecency is a portmantaeu of 'recent' and 'frequency'. It is a weighted rank
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that depends on how often and how recently something occured. As far as I
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Frecency is a portmanteau of 'recent' and 'frequency'. It is a weighted rank
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that depends on how often and how recently something occurred. As far as I
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know, Mozilla came up with the term.
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.P
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To \fBz\fR, a directory that has low ranking but has been accessed recently
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@ -131,7 +139,7 @@ The environment variable \fB$_Z_NO_RESOLVE_SYMLINKS\fR can be set to prevent
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resolving of symlinks. If it is not set, symbolic links will be resolved when
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added to the datafile.
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.P
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In bash, \fBz\fR prepends a command to the \fBPROMPT_COMMAND\fR environment
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In bash, \fBz\fR appends a command to the \fBPROMPT_COMMAND\fR environment
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variable to maintain its database. In zsh, \fBz\fR appends a function
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\fB_z_precmd\fR to the \fBprecmd_functions\fR array.
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.P
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@ -139,8 +147,11 @@ The environment variable \fB$_Z_NO_PROMPT_COMMAND\fR can be set if you want to
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handle \fBPROMPT_COMMAND\fR or \fBprecmd\fR yourself.
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.P
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The environment variable \fB$_Z_EXCLUDE_DIRS\fR can be set to an array of
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directories to exclude from tracking. \fB$HOME\fR is always excluded.
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directory trees to exclude from tracking. \fB$HOME\fR is always excluded.
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Directories must be full paths without trailing slashes.
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.P
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The environment variable \fB$_Z_OWNER\fR can be set to your username, to
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allow usage of \fBz\fR when your sudo enviroment keeps \fB$HOME\fR set.
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.SH
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FILES
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Data is stored in \fB$HOME/.z\fR. This can be overridden by setting the
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161
plugins/z/z.sh
161
plugins/z/z.sh
@ -13,6 +13,7 @@
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# set $_Z_NO_RESOLVE_SYMLINKS to prevent symlink resolution.
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# set $_Z_NO_PROMPT_COMMAND if you're handling PROMPT_COMMAND yourself.
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# set $_Z_EXCLUDE_DIRS to an array of directories to exclude.
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# set $_Z_OWNER to your username if you want use z while sudo with $HOME kept
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#
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# USE:
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# * z foo # cd to most frecent dir matching foo
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@ -22,11 +23,6 @@
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# * z -l foo # list matches instead of cd
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# * z -c foo # restrict matches to subdirs of $PWD
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case $- in
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*i*) ;;
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*) echo 'ERROR: z.sh is meant to be sourced, not directly executed.'
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esac
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[ -d "${_Z_DATA:-$HOME/.z}" ] && {
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echo "ERROR: z.sh's datafile (${_Z_DATA:-$HOME/.z}) is a directory."
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}
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@ -35,8 +31,8 @@ _z() {
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local datafile="${_Z_DATA:-$HOME/.z}"
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# bail out if we don't own ~/.z (we're another user but our ENV is still set)
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[ -f "$datafile" -a ! -O "$datafile" ] && return
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# bail if we don't own ~/.z and $_Z_OWNER not set
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[ -z "$_Z_OWNER" -a -f "$datafile" -a ! -O "$datafile" ] && return
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# add entries
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if [ "$1" = "--add" ]; then
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@ -45,16 +41,16 @@ _z() {
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# $HOME isn't worth matching
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[ "$*" = "$HOME" ] && return
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# don't track excluded dirs
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# don't track excluded directory trees
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local exclude
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for exclude in "${_Z_EXCLUDE_DIRS[@]}"; do
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[ "$*" = "$exclude" ] && return
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case "$*" in "$exclude*") return;; esac
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done
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# maintain the file
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local tempfile
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tempfile="$(mktemp "$datafile.XXXXXX")" || return
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# maintain the data file
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local tempfile="$datafile.$RANDOM"
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while read line; do
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# only count directories
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[ -d "${line%%\|*}" ] && echo $line
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done < "$datafile" | awk -v path="$*" -v now="$(date +%s)" -F"|" '
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BEGIN {
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@ -62,6 +58,7 @@ _z() {
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time[path] = now
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}
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$2 >= 1 {
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# drop ranks below 1
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if( $1 == path ) {
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rank[$1] = $2 + 1
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time[$1] = now
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@ -72,49 +69,51 @@ _z() {
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count += $2
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}
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END {
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if( count > 6000 ) {
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for( i in rank ) print i "|" 0.99*rank[i] "|" time[i] # aging
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} else for( i in rank ) print i "|" rank[i] "|" time[i]
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if( count > 9000 ) {
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# aging
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for( x in rank ) print x "|" 0.99*rank[x] "|" time[x]
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} else for( x in rank ) print x "|" rank[x] "|" time[x]
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}
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' 2>/dev/null >| "$tempfile"
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# do our best to avoid clobbering the datafile in a race condition
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if [ $? -ne 0 -a -f "$datafile" ]; then
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env rm -f "$tempfile"
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else
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env mv -f "$tempfile" "$datafile"
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[ "$_Z_OWNER" ] && chown $_Z_OWNER:$(id -ng $_Z_OWNER) "$tempfile"
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env mv -f "$tempfile" "$datafile" || env rm -f "$tempfile"
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fi
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# tab completion
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elif [ "$1" = "--complete" ]; then
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elif [ "$1" = "--complete" -a -s "$datafile" ]; then
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while read line; do
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[ -d "${line%%\|*}" ] && echo $line
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done < "$datafile" | awk -v q="$2" -F"|" '
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BEGIN {
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if( q == tolower(q) ) nocase = 1
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split(substr(q,3),fnd," ")
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if( q == tolower(q) ) imatch = 1
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q = substr(q, 3)
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gsub(" ", ".*", q)
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}
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{
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if( nocase ) {
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for( i in fnd ) tolower($1) !~ tolower(fnd[i]) && $1 = ""
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} else {
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for( i in fnd ) $1 !~ fnd[i] && $1 = ""
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}
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if( $1 ) print $1
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if( imatch ) {
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if( tolower($1) ~ tolower(q) ) print $1
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} else if( $1 ~ q ) print $1
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}
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' 2>/dev/null
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else
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# list/go
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while [ "$1" ]; do case "$1" in
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--) while [ "$1" ]; do shift; local fnd="$fnd $1";done;;
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--) while [ "$1" ]; do shift; local fnd="$fnd${fnd:+ }$1";done;;
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-*) local opt=${1:1}; while [ "$opt" ]; do case ${opt:0:1} in
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c) local fnd="^$PWD $fnd";;
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h) echo "${_Z_CMD:-z} [-chlrt] args" >&2; return;;
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h) echo "${_Z_CMD:-z} [-chlrtx] args" >&2; return;;
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x) sed -i -e "\:^${PWD}|.*:d" "$datafile";;
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l) local list=1;;
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r) local typ="rank";;
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t) local typ="recent";;
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esac; opt=${opt:1}; done;;
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*) local fnd="$fnd $1";;
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esac; local last=$1; shift; done
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*) local fnd="$fnd${fnd:+ }$1";;
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esac; local last=$1; [ "$#" -gt 0 ] && shift; done
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[ "$fnd" -a "$fnd" != "^$PWD " ] || local list=1
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# if we hit enter on a completion just go there
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@ -131,59 +130,71 @@ _z() {
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[ -d "${line%%\|*}" ] && echo $line
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done < "$datafile" | awk -v t="$(date +%s)" -v list="$list" -v typ="$typ" -v q="$fnd" -F"|" '
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function frecent(rank, time) {
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dx = t-time
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if( dx < 3600 ) return rank*4
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if( dx < 86400 ) return rank*2
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if( dx < 604800 ) return rank/2
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return rank/4
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# relate frequency and time
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dx = t - time
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if( dx < 3600 ) return rank * 4
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if( dx < 86400 ) return rank * 2
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if( dx < 604800 ) return rank / 2
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return rank / 4
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}
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function output(files, toopen, override) {
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function output(files, out, common) {
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# list or return the desired directory
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if( list ) {
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cmd = "sort -n >&2"
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for( i in files ) if( files[i] ) printf "%-10s %s\n", files[i], i | cmd
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if( override ) printf "%-10s %s\n", "common:", override > "/dev/stderr"
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for( x in files ) {
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if( files[x] ) printf "%-10s %s\n", files[x], x | cmd
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}
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if( common ) {
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printf "%-10s %s\n", "common:", common > "/dev/stderr"
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}
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} else {
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if( override ) toopen = override
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print toopen
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if( common ) out = common
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print out
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}
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}
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function common(matches) {
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# shortest match
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for( i in matches ) {
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if( matches[i] && (!short || length(i) < length(short)) ) short = i
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# find the common root of a list of matches, if it exists
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for( x in matches ) {
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if( matches[x] && (!short || length(x) < length(short)) ) {
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short = x
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}
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}
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if( short == "/" ) return
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# shortest match must be common to each match. escape special characters in
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# a copy when testing, so we can return the original.
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# use a copy to escape special characters, as we want to return
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# the original. yeah, this escaping is awful.
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clean_short = short
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gsub(/[\(\)\[\]\|]/, "\\\\&", clean_short)
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for( i in matches ) if( matches[i] && i !~ clean_short ) return
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gsub(/\[\(\)\[\]\|\]/, "\\\\&", clean_short)
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for( x in matches ) if( matches[x] && x !~ clean_short ) return
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return short
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}
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BEGIN { split(q, a, " "); oldf = noldf = -9999999999 }
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BEGIN {
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gsub(" ", ".*", q)
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hi_rank = ihi_rank = -9999999999
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}
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{
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if( typ == "rank" ) {
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f = $2
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rank = $2
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} else if( typ == "recent" ) {
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f = $3-t
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} else f = frecent($2, $3)
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wcase[$1] = nocase[$1] = f
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for( i in a ) {
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if( $1 !~ a[i] ) delete wcase[$1]
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if( tolower($1) !~ tolower(a[i]) ) delete nocase[$1]
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}
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if( wcase[$1] && wcase[$1] > oldf ) {
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cx = $1
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oldf = wcase[$1]
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} else if( nocase[$1] && nocase[$1] > noldf ) {
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ncx = $1
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noldf = nocase[$1]
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rank = $3 - t
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} else rank = frecent($2, $3)
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if( $1 ~ q ) {
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matches[$1] = rank
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} else if( tolower($1) ~ tolower(q) ) imatches[$1] = rank
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if( matches[$1] && matches[$1] > hi_rank ) {
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best_match = $1
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hi_rank = matches[$1]
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} else if( imatches[$1] && imatches[$1] > ihi_rank ) {
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ibest_match = $1
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ihi_rank = imatches[$1]
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}
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}
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END {
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if( cx ) {
|
||||
output(wcase, cx, common(wcase))
|
||||
} else if( ncx ) output(nocase, ncx, common(nocase))
|
||||
# prefer case sensitive
|
||||
if( best_match ) {
|
||||
output(matches, best_match, common(matches))
|
||||
} else if( ibest_match ) {
|
||||
output(imatches, ibest_match, common(imatches))
|
||||
}
|
||||
}
|
||||
')"
|
||||
[ $? -gt 0 ] && return
|
||||
@ -195,9 +206,10 @@ alias ${_Z_CMD:-z}='_z 2>&1'
|
||||
|
||||
[ "$_Z_NO_RESOLVE_SYMLINKS" ] || _Z_RESOLVE_SYMLINKS="-P"
|
||||
|
||||
if compctl &> /dev/null; then
|
||||
if type compctl >/dev/null 2>&1; then
|
||||
# zsh
|
||||
[ "$_Z_NO_PROMPT_COMMAND" ] || {
|
||||
# zsh populate directory list, avoid clobbering any other precmds
|
||||
# populate directory list, avoid clobbering any other precmds.
|
||||
if [ "$_Z_NO_RESOLVE_SYMLINKS" ]; then
|
||||
_z_precmd() {
|
||||
_z --add "${PWD:a}"
|
||||
@ -207,22 +219,25 @@ if compctl &> /dev/null; then
|
||||
_z --add "${PWD:A}"
|
||||
}
|
||||
fi
|
||||
precmd_functions+=(_z_precmd)
|
||||
[[ -n "${precmd_functions[(r)_z_precmd]}" ]] || {
|
||||
precmd_functions[$(($#precmd_functions+1))]=_z_precmd
|
||||
}
|
||||
}
|
||||
# zsh tab completion
|
||||
_z_zsh_tab_completion() {
|
||||
# tab completion
|
||||
local compl
|
||||
read -l compl
|
||||
reply=(${(f)"$(_z --complete "$compl")"})
|
||||
}
|
||||
compctl -U -K _z_zsh_tab_completion _z
|
||||
elif complete &> /dev/null; then
|
||||
# bash tab completion
|
||||
elif type complete >/dev/null 2>&1; then
|
||||
# bash
|
||||
# tab completion
|
||||
complete -o filenames -C '_z --complete "$COMP_LINE"' ${_Z_CMD:-z}
|
||||
[ "$_Z_NO_PROMPT_COMMAND" ] || {
|
||||
# bash populate directory list. avoid clobbering other PROMPT_COMMANDs.
|
||||
echo $PROMPT_COMMAND | grep -q "_z --add" || {
|
||||
PROMPT_COMMAND='_z --add "$(pwd '$_Z_RESOLVE_SYMLINKS' 2>/dev/null)" 2>/dev/null;'"$PROMPT_COMMAND"
|
||||
# populate directory list. avoid clobbering other PROMPT_COMMANDs.
|
||||
grep "_z --add" <<< "$PROMPT_COMMAND" >/dev/null || {
|
||||
PROMPT_COMMAND="$PROMPT_COMMAND"$'\n''_z --add "$(command pwd '$_Z_RESOLVE_SYMLINKS' 2>/dev/null)" 2>/dev/null;'
|
||||
}
|
||||
}
|
||||
fi
|
||||
|
||||
Loading…
Reference in New Issue
Block a user