slosh --install-terminfo: the binary carries its own terminfo entry

The xterm-256color fallback works everywhere; the real entry is
better, and a tarball user on a bare box had no easy way to get it.
The entry is generated from the vendored tree (contrib/terminfo, so
it describes the terminal core we actually ship), compiled with tic,
embedded as bytes, and written to ~/.terminfo under every name it
answers to, letter and Darwin-hashed layouts both. No root, no
package, no conflict with a ghostty installed later. Proven end to
end in a mount namespace: bare box falls back, installs, and the
next pane says xterm-ghostty.

1 files changed, 11 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 7ac9736..c4aa82a 100644
--- a/Makefile
+++ b/Makefile
@@ -83,7 +83,7 @@ $(BIN): $(OBJ) $(VT_LIB)
 	$(call say,[LD],$@)
 	$(Q)$(CC) $(OBJ) $(VT_LIB) -o $@ $(LDFLAGS)
 
-build/%.o: src/%.c build/version.h build/logo.h $(VT_LIB) | build
+build/%.o: src/%.c build/version.h build/logo.h build/terminfo.h $(VT_LIB) | build
 	$(call say,[CC],$<)
 	$(Q)$(CC) $(CFLAGS) -c $< -o $@
 
@@ -106,6 +106,16 @@ build/logo.h: logo.txt | build
 	  sed -e 's/\\\\/\\\\\\\\/g' -e 's/"/\\\\"/g' -e 's/^/    "/' -e 's/$$/",/' logo.txt; \
 	  printf '};\n'; } > $@
 
+# The compiled xterm-ghostty terminfo entry, as bytes the binary carries so
+# `slosh --install-terminfo` can hand it to a machine that lacks it. See
+# contrib/terminfo/README.md for where the entry comes from.
+build/terminfo.h: contrib/terminfo/xterm-ghostty.terminfo | build
+	$(call say,[GEN],$@)
+	$(Q){ printf '/* generated from contrib/terminfo/xterm-ghostty.terminfo */\n'; \
+	  printf 'static const unsigned char TERMINFO_GHOSTTY[] = {\n'; \
+	  od -An -v -tx1 $< | sed -e 's/ \([0-9a-f][0-9a-f]\)/0x\1,/g'; \
+	  printf '};\n'; } > $@
+
 build/version.h: FORCE | build
 	@printf '/* generated by the Makefile */\n#define SLOSH_VERSION "%s"\n' \
 	  '$(VERSION)' > $@.tmp