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author | Tom Ryder <tom@sanctum.geek.nz> | 2017-06-02 22:07:52 +1200 |
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committer | Tom Ryder <tom@sanctum.geek.nz> | 2017-06-02 22:07:52 +1200 |
commit | bc1d5fb28841f6050605e93886685b3a02e7787a (patch) | |
tree | f0f02d8d4884b0864334ad774c98da87c0301379 /bin/tlcs.mi5 | |
parent | Correct some terms in man mi5(1df) (diff) | |
download | dotfiles-bc1d5fb28841f6050605e93886685b3a02e7787a.tar.gz dotfiles-bc1d5fb28841f6050605e93886685b3a02e7787a.zip |
Use mi5 to make templated shell scripts
Diffstat (limited to 'bin/tlcs.mi5')
-rw-r--r-- | bin/tlcs.mi5 | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/bin/tlcs.mi5 b/bin/tlcs.mi5 new file mode 100644 index 00000000..a3e17c82 --- /dev/null +++ b/bin/tlcs.mi5 @@ -0,0 +1,81 @@ +# Execute a command and tag the output of the stdout and stderr streams. +self=tlcs + +# Set the default prefixes and suffixes for stdout/err +out_pref='stdout: ' +err_pref='stderr: ' +out_suff= +err_suff= + +# Parse options out, give help if necessary +while getopts 'co:e:' opt ; do + case $opt in + c) + color=1 + ;; + o) + out_pref=$OPTARG + ;; + e) + err_pref=$OPTARG + ;; + \?) + printf >&2 'Unknown option %s\n' "$opt" + exit 2 + ;; + esac +done +shift "$((OPTIND-1))" + +# We need at least one more argument +if [ "$#" -eq 0 ] ; then + printf >&2 '%s: Need a command to run\n' "$self" + exit 2 +fi + +# If color was requested for the output, try and get a count of available +# colors; otherwise default to zero +[ -n "$color" ] && color_count=$( { + tput colors || tput Co +} 2>/dev/null ) +: "${color_count:=0}" + +# If the color count is 8 or greater, we'll color the output +if [ "$((color_count >= 8))" -eq 1 ] ; then + + # Color code for resetting + color_reset=$( { + tput me || tput sgr0 + } 2>/dev/null ) + + # If stdout is a terminal, color it + if [ -t 1 ] ; then + color_stdout=$( { + tput AF 2 || tput setaf 2 + } 2>/dev/null ) + out_pref=${color_stdout}${out_pref} + out_suff=${out_suff}${color_reset} + fi + + # If stderr is a terminal, color it + if [ -t 2 ] ; then + color_stderr=$( { + tput AF 1 || tput setaf 1 + } 2>/dev/null ) + err_pref=${color_stderr}${err_pref} + out_suff=${err_suff}${color_reset} + fi +fi + +<% +include(`include/mktd.m4') +%> + +# Execute the command, passing stdout and stderr to tl(1df) calls as appropriate +# via named pipes +out=$td/out err=$td/err +mkfifo -- "$out" "$err" || exit +tl -p "$out_pref" -s "$out_suff" < "$out" & +tl -p "$err_pref" -s "$err_suff" < "$err" & +"$@" >"$out" 2>"$err" +ex=$? ; wait ; exit "$ex" |