Make specified pager=less produce highlighted output if applicable

Signed-off-by: Jan Pokorný <jpokorny@redhat.com>

2 files changed, 20 insertions, 0 deletions

diff --git a/.local/bin/lesspipe-highlight.sh b/.local/bin/lesspipe-highlight.sh
new file mode 100755
index 0000000..b55e513
--- /dev/null
+++ b/.local/bin/lesspipe-highlight.sh
@@ -0,0 +1,19 @@
+#!/bin/bash
+# TODO: cache source-highlight extensions?
+
+# XXX: enable overriding
+LESSPIPE="$(which lesspipe.sh 2>/dev/null)"
+SHLPIPE="$(which src-hilite-lesspipe.sh 2>/dev/null)"
+
+SHLEXTS=
+
+[ -x "${LESSPIPE}" ] || LESSPIPE=cat
+[ -x "${SHLPIPE}" ] \
+  && SHLEXTS=$(source-highlight --lang-list | cut -d = -f1 | sed 's/^/\*./' | paste -d'|' -s) \
+  || SHLPIPE=cat
+
+eval "\
+	case \"$1\" in
+	${SHLEXTS%|}) ${SHLPIPE} "$1";;
+	*)          ${LESSPIPE} "$1";;
+	esac"
diff --git a/.profile b/.profile
index 65b844b..3bc5c99 100644
--- a/.profile
+++ b/.profile
@@ -2,3 +2,4 @@ export PATH="${PATH}:${HOME}/.local/bin:${HOME}/bin"
 export KRB5_CONFIG="${HOME}/.krb5conf"
 export EDITOR="vim"
 export PAGER="less -FRXS"
+export LESSOPEN="||${HOME}/.local/bin/lesspipe-highlight.sh %s"