Only build inheritance chain for user tpls after adding theme tpl

CHANGELOG.md

@@ -1,5 +1,10 @@
 # Changelog
 
+## 0.1.3 (unreleased)
+
+- Add themes support
+
+
 ## 0.1.2 (2017-08-10)
 
 - Add `redirect_to` to section front matter to redirect when landing on section

Cargo.lock

@@ -34,7 +34,7 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -47,7 +47,7 @@ dependencies = [
  "cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "dbghelp-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-demangle 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -58,7 +58,7 @@ version = "0.1.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "gcc 0.3.53 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -168,8 +168,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "glob 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
- "libloading 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libloading 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -313,7 +313,7 @@ name = "filetime"
 version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -321,7 +321,7 @@ name = "flate2"
 version = "0.2.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "miniz-sys 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -351,7 +351,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "fsevent-sys 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -359,12 +359,12 @@ name = "fsevent-sys"
 version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "futures"
-version = "0.1.14"
+version = "0.1.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -446,7 +446,7 @@ name = "inotify"
 version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -454,7 +454,7 @@ name = "iovec"
 version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -477,7 +477,7 @@ dependencies = [
 
 [[package]]
 name = "itoa"
-version = "0.3.2"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -506,12 +506,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libc"
-version = "0.2.29"
+version = "0.2.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libloading"
-version = "0.4.0"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -551,7 +551,7 @@ name = "memchr"
 version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -568,7 +568,7 @@ version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "gcc 0.3.53 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -577,7 +577,7 @@ version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bytes 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "miow 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "net2 0.2.31 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -595,7 +595,7 @@ dependencies = [
  "iovec 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazycell 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "magenta 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "magenta-sys 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -648,7 +648,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -659,7 +659,7 @@ version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -681,7 +681,7 @@ dependencies = [
  "fsevent-sys 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "inotify 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "mio 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "walkdir 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -724,7 +724,7 @@ name = "num_cpus"
 version = "1.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -734,7 +734,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "onig_sys 65.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -744,7 +744,7 @@ version = "65.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cmake 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -841,7 +841,7 @@ name = "rand"
 version = "0.3.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "magenta 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -859,16 +859,16 @@ version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "coco 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "futures 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "futures 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "redox_syscall"
-version = "0.1.30"
+version = "0.1.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -935,7 +935,7 @@ name = "sass-rs"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "sass-sys 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -946,7 +946,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bindgen 0.26.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "gcc 0.3.53 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -990,7 +990,7 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "dtoa 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "itoa 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itoa 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1108,7 +1108,7 @@ name = "syntex_errors"
 version = "0.58.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
  "syntex_pos 0.58.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "term 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1214,7 +1214,7 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1242,8 +1242,8 @@ version = "0.1.38"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_syscall 0.1.30 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)",
+ "redox_syscall 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -1465,7 +1465,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum fnv 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "6cc484842f1e2884faf56f529f960cc12ad8c71ce96cc7abba0a067c98fee344"
 "checksum fsevent 0.2.16 (registry+https://github.com/rust-lang/crates.io-index)" = "dfe593ebcfc76884138b25426999890b10da8e6a46d01b499d7c54c604672c38"
 "checksum fsevent-sys 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)" = "1a772d36c338d07a032d5375a36f15f9a7043bf0cb8ce7cee658e037c6032874"
-"checksum futures 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "4b63a4792d4f8f686defe3b39b92127fea6344de5d38202b2ee5a11bbbf29d6a"
+"checksum futures 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)" = "a82bdc62350ca9d7974c760e9665102fc9d740992a528c2254aa930e53b783c4"
 "checksum gcc 0.3.53 (registry+https://github.com/rust-lang/crates.io-index)" = "e8310f7e9c890398b0e80e301c4f474e9918d2b27fca8f48486ca775fa9ffc5a"
 "checksum getopts 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)" = "d9047cfbd08a437050b363d35ef160452c5fe8ea5187ae0a624708c91581d685"
 "checksum glob 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "8be18de09a56b60ed0edf84bc9df007e30040691af7acd1c41874faac5895bfb"
@@ -1476,13 +1476,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum inotify 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "887fcc180136e77a85e6a6128579a719027b1bab9b1c38ea4444244fe262c20c"
 "checksum iovec 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "29d062ee61fccdf25be172e70f34c9f6efc597e1fb8f6526e8437b2046ab26be"
 "checksum iron 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2440ae846e7a8c7f9b401db8f6e31b4ea5e7d3688b91761337da7e054520c75b"
-"checksum itoa 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f74cf6ca1bdbc28496a2b9798ab7fccc2ca5a42cace95bb2b219577216a5fb90"
+"checksum itoa 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ac17257442c2ed77dbc9fd555cf83c58b0c7f7d0e8f2ae08c0ac05c72842e1f6"
 "checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
 "checksum language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a91d884b6667cd606bb5a69aa0c99ba811a115fc68915e7056ec08a46e93199a"
 "checksum lazy_static 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "3b37545ab726dd833ec6420aaba8231c5b320814b9029ad585555d2a03e94fbf"
 "checksum lazycell 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3b585b7a6811fb03aa10e74b278a0f00f8dd9b45dc681f148bb29fa5cb61859b"
-"checksum libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)" = "8a014d9226c2cc402676fbe9ea2e15dd5222cd1dd57f576b5b283178c944a264"
-"checksum libloading 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "be99f814beb3e9503a786a592c909692bb6d4fc5a695f6ed7987223acfbd5194"
+"checksum libc 0.2.30 (registry+https://github.com/rust-lang/crates.io-index)" = "2370ca07ec338939e356443dac2296f581453c35fe1e3a3ed06023c49435f915"
+"checksum libloading 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "6b699b2cb9154b7a5c7b8c40fd200bd077791b292556a44ddae07482192123c6"
 "checksum log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "880f77541efa6e5cc74e76910c9884d9859683118839d6a1dc3b11e63512565b"
 "checksum magenta 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4bf0336886480e671965f794bc9b6fce88503563013d1bfb7a502c81fe3ac527"
 "checksum magenta-sys 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "40d014c7011ac470ae28e2f76a02bfea4a8480f73e701353b49ad7a8d75f4699"
@@ -1520,7 +1520,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum rand 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)" = "eb250fd207a4729c976794d03db689c9be1d634ab5a1c9da9492a13d8fecbcdf"
 "checksum rayon 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b614fe08b6665cb9a231d07ac1364b0ef3cb3698f1239ee0c4c3a88a524f54c8"
 "checksum rayon-core 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7febc28567082c345f10cddc3612c6ea020fc3297a1977d472cf9fdb73e6e493"
-"checksum redox_syscall 0.1.30 (registry+https://github.com/rust-lang/crates.io-index)" = "8312fba776a49cf390b7b62f3135f9b294d8617f7a7592cfd0ac2492b658cd7b"
+"checksum redox_syscall 0.1.31 (registry+https://github.com/rust-lang/crates.io-index)" = "8dde11f18c108289bef24469638a04dce49da56084f2d50618b226e47eb04509"
 "checksum regex 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1731164734096285ec2a5ec7fea5248ae2f5485b3feeb0115af4fda2183b2d1b"
 "checksum regex-syntax 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ad890a5eef7953f55427c50575c680c42841653abd2b028b68cd223d157f62db"
 "checksum rustc-demangle 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "aee45432acc62f7b9a108cc054142dac51f979e69e71ddce7d6fc7adf29e817e"

components/site/src/lib.rs

@@ -84,8 +84,9 @@ impl Site {
         let mut config = get_config(path, config_file);
 
         let tpl_glob = format!("{}/{}", path.to_string_lossy().replace("\\", "/"), "templates/**/*.*ml");
-        let mut tera = Tera::new(&tpl_glob).chain_err(|| "Error parsing templates")?;
-        tera.extend(&GUTENBERG_TERA)?;
+        // Only parsing as we might be extending templates from themes and that would error
+        // as we haven't loaded them yet
+        let mut tera = Tera::parse(&tpl_glob).chain_err(|| "Error parsing templates")?;
 
         if let Some(theme) = config.theme.clone() {
             // Grab data from the extra section of the theme
@@ -99,12 +100,16 @@ impl Site {
             if !theme_path.join("static").exists() {
                 bail!("Theme `{}` is missing a static folder", theme);
             }
+
             let theme_tpl_glob = format!("{}/{}", path.to_string_lossy().replace("\\", "/"), "themes/**/*.html");
             let mut tera_theme = Tera::parse(&theme_tpl_glob).chain_err(|| "Error parsing templates from themes")?;
             rewrite_theme_paths(&mut tera_theme, &theme);
-            tera_theme.build_inheritance_chains().unwrap();
+            tera_theme.build_inheritance_chains()?;
             tera.extend(&tera_theme)?;
         }
+        tera.extend(&GUTENBERG_TERA)?;
+        // the `extend` above already does it but hey
+        tera.build_inheritance_chains()?;
 
         let site = Site {
             base_path: path.to_path_buf(),