X-Git-Url: https://ruderich.org/simon/gitweb/?a=blobdiff_plain;f=shell%2Fenv;h=e8a1789df7cf0e37ef929ba176e4d7b3d7ba8e1d;hb=262a10162543ebbb237a1724e994b09cdfd852a2;hp=400d4d6c7da385af4aee81a2cf58d66cc0d6f475;hpb=7bbe37b9e655745432f0b7784d37a9595f7e9d77;p=config%2Fdotfiles.git

diff --git a/shell/env b/shell/env
index 400d4d6..e8a1789 100644
--- a/shell/env
+++ b/shell/env
@@ -1,19 +1,152 @@
 # Configuration file for environment related options for all shells.
 
 
+# Helper function to print debug information if $DEBUG is not empty.
+#
+# Doesn't fit perfectly in this file, but this is the best place to make it
+# available everywhere.
+function source_debug {
+    if [ x$DEBUG != x ]; then
+        echo $@
+    fi
+}
+
+
+source_debug "sourcing ~/.shell/env"
+
 # Use UTF-8 encoding in the terminal.
-export LC_ALL=en_US.UTF-8
+LC_ALL=en_US.UTF-8
+LANG=$LC_ALL
+export LC_ALL LANG
+
+# Add ~/bin to PATH if available.
+if [ -d ~/bin ]; then
+    PATH=~/bin:$PATH
+fi
 
 # Use Vim as editor.
-export EDITOR=vim
+EDITOR=vim
+export EDITOR
 
 # Set less as pager, its configuration is done through the .less file.
-export PAGER=less
+PAGER=less
+export PAGER
 
-# Set colors for ls (and zsh completions). This colors files normal (fi),
+# Use ~/tmp as directory for temporary files if available to reduce security
+# problems on multi-user systems.
+if [ -O ~/tmp -a -d ~/tmp ]; then
+    TMP=~/tmp
+    TEMP=$TMP
+    TMPDIR=$TMP
+    export TMP TEMP TMPDIR
+fi
+
+# Set colors for GNU ls (and zsh completions). This colors files normal (fi),
 # directories blue bold (di), symbolic links cyan (ln), named pipes normal
 # (pi), sockets normal (so), block devices normal (bd), character devices
-# normal (cd) and executables bold red (ex).
+# normal (cd), orphaned links with red background (or), setuid (su) and setgid
+# (sg) files with yellow background, directories writable by others with blue
+# background (ow) and executables bold red (ex).
 # See `dircolors --print-database` for possible colors.
-LS_COLORS='no=00:fi=00:di=34;01:ln=36:pi=00:so=00:bd=00:cd=00:ex=31;01'
+LS_COLORS="no=00:fi=00:di=34;01:ln=36:pi=00:so=00:bd=00:cd=00:\
+or=36;41:su=31;01;43:sg=31;01;43:ow=34;01;41:ex=31;01"
 export LS_COLORS
+# Set the same colors for non GNU ls, except for orphaned links which aren't
+# supported.
+LSCOLORS='ExgxxxxxBxxxxxBdBdExEb'
+#         ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^
+#         | | | | | | | | | | |
+#         | | | | | | | | | | *- directory writable to others, without sticky bit
+#         | | | | | | | | | *--- directory writable to others, with sticky bit
+#         | | | | | | | | *----- executable with setgid bit set
+#         | | | | | | | *------- executable with setuid bit set
+#         | | | | | | *--------- character special
+#         | | | | | *----------- block special
+#         | | | | *------------- executable
+#         | | | *--------------- pipe
+#         | | *----------------- socket
+#         | *------------------- symbolic link
+#         *--------------------- directory
+export LSCOLORS
+
+
+# Sources a configuration file if it exists; loads a fallback .local file if
+# it doesn't. If the .local files doesn't exist nothing is sourced.
+#
+# $1: Path to directory where configuration files are located.
+# $2: Directory name in $1 where the non .local files are stored, can be
+#     empty. If empty both configuration files (normal and .local) are stored
+#     in $1.
+# $3: Base name of file in $2, for example "rc" or "env".
+# $4: Extension for $3, if this file doesn't exist "$1/$3.local" is sourced.
+#     Can be empty, then no extension is used.
+# $5: Additional options, set to nolocal to prevent loading of "$1/$3.local"
+#                         if "$1/$2/$3.$4" doesn't exist.
+#
+# Example with the following directory/file structure, $os is Darwin and
+# $hostname is marvin.
+#
+# ~/.zsh
+# ~/.zsh/env
+# ~/.zsh/env.local
+# ~/.zsh/rc
+# ~/.zsh/rc.local
+# ~/.zsh/host/rc.marvin
+# ~/.zsh/os/rc.Darwin
+#
+# To load additional rc files from within ~/.zsh/rc use the following:
+#
+# source_config ~/.zsh os   rc $os       # loads os/rc.Darwin
+# source_config ~/.zsh host rc $hostname # loads host/rc.marvin
+#
+# To load additional env files from within ~/.zsh/env use the following (note
+# nolocal to prevent loading env.local two times if os and host files don't
+# exist):
+#
+# source_config zsh os   env $os       nolocal # loads os/rc.Darwin
+# source_config zsh host env $hostname         # loads env.local
+#
+# By letting $4 empty normal configuration files can be sourced. A .local can
+# still be used.
+#
+# source_config zsh "" file # loads zsh/file if it exists
+#
+# Doesn't fit perfectly in this file, but this is the best place to make it
+# available everywhere.
+#
+# If DEBUG is set to a non empty value additional debug output is printed.
+function source_config {
+    # Path to the file to source and its local counterpart.
+    if [ x$4 != x ]; then
+        source_file=$1/$2/$3.$4
+    # If $4 is empty don't append a trailing dot. This allows source_config()
+    # to load normal configuration files.
+    else
+        source_file=$1/$2/$3
+    fi
+    source_file_local=$1/$3.local
+
+    # Additional debug output.
+    source_debug "source_config(): checking if $source_file exists"
+    source_debug "source_config(): checking if $source_file_local exists"
+
+    # If the file does exist then source it.
+    if [ -f $source_file ]; then
+        source_debug "source_config(): -> sourcing $source_file"
+        . $source_file
+
+    # Otherwise load the .local file if it exists and .local files are
+    # allowed.
+    elif [ -f $source_file_local -a x$5 != xnolocal ]; then
+        source_debug "source_config(): -> sourcing $source_file_local"
+        . $source_file_local
+    else
+        source_debug "source_config(): -> neither exists"
+    fi
+
+    unset source_file source_file_local
+}
+
+source_debug "finished sourcing ~/.shell/env"
+
+# vim: ft=sh